Brazing device platform for vacuum brazing of refrigeration plate

Abstract

The invention discloses a brazing device platform for vacuum brazing of a refrigeration plate. The brazing device platform comprises a bearing plate and four sets of extrusion mechanisms annularly arranged on the bearing plate. The extrusion mechanism comprises a moving main body, a plurality of telescopic rods and a carbon fiber plate, the carbon fiber plate is connected with the moving main body through the telescopic rods, and the moving main body drives the carbon fiber plate to extrude the outer side of the refrigeration plate. The four sets of extrusion mechanisms drive the four carbon fiber plates to be extruded and attached to the outer wall of the refrigeration plate placed on the bearing plate, the refrigeration plate, welding materials on the upper side face and the lower side face of the refrigeration plate and the bottom plate are firmly fixed to the center of the bearing plate, and meanwhile the four carbon fiber plates seal the edge of the refrigeration plate; and the welding material is prevented from overflowing the edge of the refrigeration plate when being dissolved into liquid. The carbon fiber plate can resist high temperature and is not fused with a welding material.

Description

Technical Field

[0001] The invention relates to the field of vacuum brazing devices, and in particular to a brazing device platform for vacuum brazing of refrigeration plates. Background Art

[0002] Vacuum brazing is an advanced welding technique that uses low pressure and high temperature conditions in a vacuum environment to join metal materials. The principle is to place a metal filler in the workpiece where it is to be welded. The high temperature causes the filler to melt, forming a high-strength joint.

[0003] For example Figure 9 In the process, the upper and lower sides of a circular cooling plate 1000 are covered with sheet-like welding material 2000, which is then placed on the two base plates 3000 to be welded, and the welding is completed using vacuum brazing equipment. However, this vacuum brazing process may have two problems: First, the cooling plate may shift when being pushed into the vacuum brazing device or during the welding process inside the vacuum brazing device, resulting in uneven edges of the finished welded product; second, the welding material may overflow from the outside of the cooling plate after melting into liquid due to the high temperature, resulting in an uneven edge of the finished welded product, which affects its aesthetics. Summary of the Invention

[0004] The purpose of the present invention is to provide a brazing device platform for vacuum brazing of refrigeration plates, which solves the problems of positional deviation of the refrigeration plates and overflow of welding materials from the edges of the refrigeration plates during the entire vacuum brazing process.

[0005] To achieve this object, the present invention adopts the following technical solutions: A brazing device platform for vacuum brazing of refrigeration panels, comprising a bearing plate and four groups of extrusion mechanisms arranged in an annular manner on the bearing plate; The extrusion mechanism includes a moving body, multiple telescopic rods and a carbon fiber plate. The carbon fiber plate and the moving body are connected via the multiple telescopic rods. The moving body drives the carbon fiber plate to extrude the outer side of the refrigeration plate.

[0006] Preferably, the telescopic rod includes a cylinder, a first spring and a thin rod, the thin rod is installed inside the cylinder, and the bottom of the cylinder is connected to one end of the thin rod through the first spring.

[0007] Preferably, locking structures are provided at both ends of the extrusion mechanisms. When the four groups of extrusion mechanisms move a certain distance toward the refrigeration plate, the adjacent ends of the extrusion mechanisms of each group are locked to each other through the locking structures. The upper surface and the lower surface of the carbon fiber plate are both provided with hook grooves, and the end of the telescopic rod is provided with a hook, and the hook is hung in the hook groove.

[0008] Preferably, a protrusion is provided on each side of the movable body, the end of the protrusion is provided with an inclined surface, and the minimum angle between the inclined surface and the side surface of the protrusion is 45°; The locking structure is a clamping block and a clamping groove respectively arranged on the inclined surfaces of the two protrusions, and a clamping tongue arranged in the protrusion; The latch tongue extends from the upper surface of the protrusion to the inside of the slot. The block is provided with a through hole, and the latch tongue is engaged with the through hole. The structure of the card block is the same as that of the card slot, and the card block is an isosceles right triangle body.

[0009] Preferably, the latch tongue has a cap portion and a rod portion, and a third spring is connected between the cap portion and the upper surface of the protrusion. In a natural state, the latch tongue is extended into the interior of the slot by the elastic force of the third spring. The end of the rod is provided with an inclined surface, and the inclined surface is provided toward the outside of the slot.

[0010] Preferably, the movable body includes a movable plate, a first screw and two movable blocks, and both ends of the first screw are rotatably connected to both ends of the movable plate respectively; The first screw has two threaded parts, which are respectively located at two ends of the first screw, and the thread directions of the two threaded parts are opposite, and the two moving blocks are respectively threadedly connected to the two threaded parts; Knobs are provided at both ends of the first screw; A plurality of telescopic rods are evenly arranged on one side of the moving block.

[0011] Preferably, the brazing device platform further includes a transmission mechanism and a drive mechanism; The upper surface of the load-bearing plate is provided with at least two transverse rails and two longitudinal rails, and the bottom ends of the mobile body are provided with connecting blocks; The transmission mechanism is connected to the connecting blocks on the four groups of extrusion mechanisms, and the driving mechanism drives the four groups of extrusion mechanisms to move through the transmission mechanism.

[0012] Preferably, the transmission mechanism is four second screws respectively installed in the two transverse rails and the two longitudinal rails; The second screw has two threaded portions, which are respectively located at the two ends of the second screw. The thread directions of the two threaded portions are opposite. The connecting blocks on the two opposite groups of extrusion mechanisms are respectively threadedly connected to the two ends of the second screw, and the two connecting blocks on each group of extrusion mechanisms are respectively connected to two second screws parallel to each other.

[0013] Preferably, a platform groove is provided at the center of the upper surface of the load-bearing plate, and four sliding grooves are provided at equal intervals around the platform groove; The driving mechanism includes a boss, multiple groups of second springs, and four slides. The boss is installed in the table groove. Multiple groups of second springs are arranged between the boss and the table groove. The four slides are slidably installed in four of the slide grooves respectively. A fourth spring is arranged between one side of the slide and the inner wall of one side of the slide groove. The fourth spring is in a compressed state. One end of the slide plate facing the inside of the table groove is a clamping end, and the clamping end is a triangular column structure, and the upper surface is an inclined surface; A gear is fixedly provided at the middle of the second screw rod, a tooth groove is provided at the top of the slide plate, and the gear is meshed and connected with the tooth groove.

[0014] Preferably, both ends of the transverse track and the longitudinal track are provided with limiting grooves, and both ends of the second screw are provided with limiting blocks, and the limiting blocks are installed in the limiting grooves.

[0015] Preferably, the telescopic rod comprises a barrel, a bean nail and a telescopic barrel, and the telescopic barrel is installed in the barrel; One end of the bean nail passes through the interior of the telescopic cylinder, and the other end of the bean nail passes through the outside of the cylinder body. One end of the bean nail is connected to the inner wall of the telescopic cylinder via a third spring. The cylinder body is provided with a plurality of through holes. The bean nail protrudes from the outside of the cylinder body through the through holes under the elastic force of the third spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses four sets of extrusion mechanisms to drive four carbon fiber plates to press against the outer wall of a cooling plate placed on a load-bearing plate, firmly securing the cooling plate, the welding material on its upper and lower sides, and the base plate to the center of the load-bearing plate. Simultaneously, the four carbon fiber plates seal the edges of the cooling plate, preventing the welding material from dissolving into a liquid state and overflowing from the edges. The carbon fiber plates can withstand high temperatures without fusing with the welding material. When the cooling plate is placed on a boss, the boss moves downward under the force of gravity and presses against the upper surface of the clamping end of a slide. This movement of the slide drives the gears, which in turn rotate the second screw, driving the two opposing extrusion mechanisms mounted at both ends of the second screw toward the center of the load-bearing plate. During this movement, the extrusion mechanisms press the carbon fiber plates against the outer wall of the cooling plate. When the cooling plate is removed from the boss, the boss moves upward under the elastic force of a second spring. During this movement, the slide, under the elastic force of a fourth spring, moves its clamping end out of a slot, and the four extrusion mechanisms drive the four carbon fiber plates away from the center of the load-bearing plate, freeing space for the next cooling plate placement. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0018] Figure 1 The figure is a schematic structural diagram of a brazing device platform for vacuum brazing of refrigeration panels; Figure 2 for Figure 1 Enlarged view of point F in the middle; Figure 3 for Figure 1 Structural diagram of the extrusion mechanism; Figure 4 for Figure 3 Enlarged view of point E in the middle; Figure 5 A side view of a brazing device platform for vacuum brazing of refrigeration panels; Figure 6 for Figure 5 Schematic diagram of the cross section at AA in the middle; Figure 7 for Figure 1 A first specific embodiment of the middle telescopic rod; Figure 8 for Figure 1 A second specific embodiment of the middle telescopic rod; Figure 9 It is a structural schematic diagram of a circular refrigeration plate in the background technology; Figure 10 for Figure 6 A specific embodiment of the middle gear; Figure 11 for Figure 5 Schematic diagram of a vertical cross section of the center bearing plate along the transverse or longitudinal track direction.

[0019] Illustrations: 1. Load-bearing plate; 2. Extrusion mechanism; 101. Horizontal track; 102. Vertical track; 103. Platform groove; 104. Slide groove; 105. Limiting groove; 106. Fourth spring; 201. Telescopic rod; 202. Carbon fiber plate; 203. Bump; 301. Moving plate; 302. First screw; 303. Moving block; 401. Second screw; 402. Gear; 501. Boss; 502. Second spring; 50 3. Slide plate; 2011. Cylinder; 2012. First spring; 2013. Thin rod; 2014. Hook; 2021. Hook slot; 2031. Clamping block; 2032. Clamping slot; 2033. Clamping tongue; 2034. Third spring; 2035. Connecting block; 20311. Through hole; 20331. Cap; 20332. Rod; 3021. Knob; 4011. Limiting block; 5031. Attaching end; 5032. Tooth groove; 20001, cylinder; 20002, bean nail; 20003, telescopic cylinder; 20004, third spring; 200011, through hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] The embodiment of the present invention provides a brazing device platform for vacuum brazing of refrigeration panels, such as Figure 1 As shown, the brazing device platform for vacuum brazing of the refrigeration plate 1000 includes a load-bearing plate 1 and four groups of extrusion mechanisms 2 arranged in a ring on the load-bearing plate 1; the load-bearing plate 1 refers to the platform for placing the refrigeration plate 1000, and the extrusion mechanism 2 refers to the device for extruding the outer wall of the refrigeration plate 1000; the welding objects of this brazing device platform are the refrigeration plate 1000 and the bottom plates 3000 on the upper and lower sides of the refrigeration plate.

[0024] The extrusion mechanism 2 includes a moving body, multiple telescopic rods 201 and a carbon fiber plate 202. The carbon fiber plate 202 is connected to the moving body via the multiple telescopic rods 201. The moving body drives the carbon fiber plate 202 to extrude the outer side of the refrigeration plate.

[0025] In this embodiment, four sets of extrusion mechanisms 2 drive four carbon fiber plates 202 to press and adhere to the outer walls of a cooling plate 1000 placed on a load-bearing plate 1, firmly securing the cooling plate 1000, along with the welding material 2000 on its upper and lower sides and the base plate 3000, to the center of the load-bearing plate 1. Simultaneously, the four carbon fiber plates 202 seal the edges of the cooling plate 1000, preventing the welding material 2000 from dissolving into a liquid state and overflowing the edges of the cooling plate 1000. Carbon fiber plates are formed by impregnating and hardening carbon fibers aligned in the same direction with a resin. They exhibit excellent properties such as high tensile strength, corrosion resistance, shock resistance, and impact resistance. The vacuum brazing temperature is below 100°C, and the carbon fiber plates 202, due to their unique material properties, can withstand high temperatures without fusing with the welding material 2000. They are also flexible and can bend to accommodate cooling plates of varying shapes.

[0026] Further, if Figure 7As shown, the telescopic rod 201 includes a barrel 2011, a first spring 2012, and a thin rod 2013. The thin rod 2013 is installed inside the barrel 2011, and the bottom of the barrel 2011 is connected to one end of the thin rod 2013 via the first spring 2012. A limit block is provided at one end of the thin rod 2013 located inside the barrel 2011, and the opening of the barrel 2011 is a constricted structure that can prevent the limit block from moving out of the barrel 2011.

[0027] In this embodiment, the thin rod 2013 automatically adapts to different pressure requirements by moving within the cylinder 2011. At the same time, the first spring 2012 provides the necessary elastic support, allowing the carbon fiber plate 202 to adapt to the outer wall of the cooling plate 1000 of different sizes and shapes. This ensures effective fixation of the cooling plate 1000 and avoids potential damage caused by hard contact.

[0028] Furthermore, locking structures are provided at both ends of the extrusion mechanisms 2. When the four groups of extrusion mechanisms 2 move a certain distance toward the refrigeration plate, the adjacent ends of the extrusion mechanisms 2 in each group are locked with each other through the locking structures.

[0029] In this embodiment, the locking structure ensures that the pressing mechanism 2 can stably adhere to the outer side of the refrigeration plate 1000 after being adjusted to a suitable position, thereby preventing the refrigeration plate 1000 from shifting.

[0030] Further, if Figure 3-Figure 4 As shown, a protrusion 203 is provided on each side of the mobile body, and the end of the protrusion 203 is provided with an inclined surface, and the minimum angle between the inclined surface and the side surface of the protrusion 203 is 45°; The locking structure is a block 2031, a slot 2032 and a tongue 2033 arranged on the inclined surfaces of the two protrusions 203; specifically, the block 2031 and the slot 2032 are respectively arranged on the inclined surfaces of the two protrusions 203, that is, the block 2031 is arranged on the protrusion 203 on one side of the moving body, and the slot 2032 is arranged on the protrusion 203 on the other side of the moving body.

[0031] The latch tongue 2033 extends from the upper surface of the protrusion 203 to the interior of the latch slot 2032 . The latch block 2031 is provided with a through hole 20311 , and the latch tongue 2033 engages with the through hole 20311 . The structure of the clamping block 2031 is the same as that of the clamping slot 2032 , and the clamping block 2031 is an isosceles right triangle body.

[0032] In this embodiment, when the four groups of extrusion mechanisms 2 move to a certain position toward the center of the load-bearing plate 1, the protrusions 203 on both sides of the adjacent moving bodies fit together, the block 2031 enters the slot 2032, and the rod 20332 is inserted into the through hole 20311 to lock the block 2031 in the slot 2032. The four groups of extrusion mechanisms 2 are fixed to each other in pairs to avoid displacement and loosening during the vacuum brazing process.

[0033] During the movement of the four groups of extrusion mechanisms 2 toward the center of the load-bearing plate 1, the telescopic rod 201 pushes the carbon fiber plate 202 to squeeze the outer wall of the refrigeration plate 1000. Since the outer wall of the refrigeration plate 1000 may have a curved outer wall, during the extrusion process, the elastic force of the first spring 2012 inside the telescopic rod 201 can enable the carbon fiber plate 202 to maintain the deformation of the outer wall of the refrigeration plate 1000.

[0034] Furthermore, the latch tongue 2033 has a cap portion 20331 and a rod portion 20332. A third spring 2034 is connected between the cap portion 20331 and the upper surface of the protrusion 203. In a natural state, the latch tongue 2033 extends into the interior of the latch slot 2032 under the elastic force of the spring 2034. The end of the rod 20332 is provided with a slope, and the slope is provided toward the outside of the slot 2032. The slope enables the rod 20332 to move upward under the push of the block 2031, so that during the assembly of the block 2031 and the slot 2032, there is no need to manually pull the cap 20331 to move the rod 20332 upward, thereby achieving automatic locking.

[0035] In this embodiment, under normal circumstances, the tongue 2033 is pulled into the slot 2032 by the elastic force of the spring 2034. During the process of the block 2031 entering the slot 2032, the block 2031 pushes the rod 20332 upward through the end inclined surface of the rod 20332. When the position of the rod 20332 corresponds to the through hole 20311, the elastic force of the spring 2034 pulls the tongue 2033 into the through hole 20311 to achieve locking.

[0036] Furthermore, hook grooves 2021 are provided on both the upper and lower surfaces of the carbon fiber plate 202 , and a hook 2014 is provided at the end of the telescopic rod 201 , and the hook 2014 is hooked in the hook groove 2021 .

[0037] In this embodiment, the hook groove 2021 is a long strip of groove for the hook 2014 to hang on and the hook 2014 can move in the hook groove 2021 to adapt to the movement of the two moving blocks 303 and the position adjustment during the deformation of the carbon fiber plate 202 described below.

[0038] Specifically, during the deformation of the carbon fiber plate 202, for example, bending occurs. At this time, since the telescopic rod 201 is fixedly installed on the mobile body, the position of the hook 2014 does not change. However, since the position of the carbon fiber plate 202 relative to the hook 2014 changes during the deformation process, that is, the hook groove 2021 bends or moves forward and backward during the deformation process of the fiber plate 202, at this time, the hook 2014 is displaced relative to the hook groove 2021, and the position of the hook 2014 in the hook groove 2021 will change.

[0039] Furthermore, the mobile body includes a mobile plate 301, a first screw 302 and two mobile blocks 303, and the two ends of the first screw 302 are rotatably connected to the two ends of the mobile plate 301; The first screw rod 302 has two threaded parts, which are respectively located at the two ends of the first screw rod 302. The thread directions of the two threaded parts are opposite, and the two moving blocks 303 are respectively threadedly connected to the two threaded parts; knobs 3021 are provided at both ends of the first screw rod 302.

[0040] In this embodiment, the first screw rod 302 is rotated by rotating the knob 3021 , driving the two moving blocks 303 on both ends of the first screw rod 302 to move closer to or away from each other to accommodate carbon fiber plates 202 of different lengths.

[0041] Specifically, the carbon fiber plate 202 is fixed to the mobile body by a telescopic rod 201 fixedly mounted on the two moving blocks 303. However, when the width of the carbon fiber plate 202 is greater than the distance between the two moving blocks 303, it is necessary to adjust the two moving blocks 303 to move away from each other by rotating the knob 3021, so as to adapt to the width of the carbon fiber plate 202. Conversely, when the width of the carbon fiber plate 202 is less than the distance between the two moving blocks 303, it is necessary to adjust the two moving blocks 303 to move closer to each other by rotating the knob 3021.

[0042] Furthermore, a plurality of the telescopic rods 201 are evenly arranged on one side of the moving block 303 .

[0043] In this embodiment, multiple telescopic rods 201 are evenly arranged on one side of the moving block 303 to adapt to the welding of the carbon fiber plate 202 on refrigeration plates 1000 of various shapes. The more telescopic rods 201 there are, the more uniform the force on each part of the carbon fiber plate 202 can be when it bends, and the carbon fiber plate 202 can be better fixed and kept in shape to fit the outer side of the refrigeration plate 1000.

[0044] Further, if Figure 2 As shown, the brazing device platform also includes a transmission mechanism and a driving mechanism; The upper surface of the load-bearing plate 1 is provided with at least two transverse rails 101 and two longitudinal rails 102, and the bottom ends of the mobile body are provided with connecting blocks 2035; The transmission mechanism is connected to the connecting blocks 2035 on the four groups of extrusion mechanisms 2, and the driving mechanism drives the four groups of extrusion mechanisms 2 to move through the transmission mechanism.

[0045] In this embodiment, the driving mechanism drives the four groups of extrusion mechanisms 2 to move in the transverse track 101 and the two longitudinal tracks 102 through the transmission mechanism, so that the four groups of extrusion mechanisms 2 move closer to or away from each other to clamp and fit the refrigeration plate 1000 .

[0046] Further, if Figure 5 、 Figure 6 and Figure 11 As shown, the transmission mechanism is four second screws 401 respectively installed in the two transverse rails 101 and the two longitudinal rails 102; specifically, as shown in FIG. Figure 1 As shown, the transverse track 101 and the longitudinal track 102 are perpendicular to each other, and both ends of the second screw rod 401 are rotatably mounted on both ends of the transverse track 101 or the longitudinal track 102 respectively.

[0047] The second screw 401 has two threaded portions, which are respectively located at the two ends of the second screw 401. The thread directions of the two threaded portions are opposite. The connecting blocks 2035 on the two opposite groups of extrusion mechanisms 2 are respectively threadedly connected to the two ends of the second screw 401, and the two connecting blocks 2035 on each group of extrusion mechanisms 2 are respectively connected to two second screws 401 parallel to each other.

[0048] In this embodiment, during the rotation of the second screw 401, since the thread directions of the two threaded portions at both ends of the second screw 401 are opposite, the two opposing groups of extrusion mechanisms 2 located on the two threaded portions move in opposite directions. When the second screw 401 rotates, the two opposing groups of extrusion mechanisms 2 move closer to or farther away from each other. Specifically, as another optional embodiment, the drive mechanism and transmission mechanism can be driven by a cylinder or an electric push rod. Specifically, each cylinder acts on a corresponding extrusion mechanism 2, causing the four groups of extrusion mechanisms 2 to move closer to or farther away from each other to clamp and fit the refrigeration plate 1000. It can be understood that in this embodiment, the focus is on causing the four groups of extrusion mechanisms 2 to move closer to or farther away from each other, and other details are not described in detail. In this embodiment, a sensor structure such as a visual sensor, an infrared sensor, or a trigger switch can be used as a signal to activate the cylinder. When the sensor structure receives the signal from the sensor structure, it can activate the cylinder to cause the four groups of extrusion mechanisms 2 to move closer to or farther away from each other. The principle of the sensor structure is well known to those skilled in the art and is not described in detail in this embodiment.

[0049] Furthermore, a platform groove 103 is provided at the center of the upper surface of the load-bearing plate 1, and four sliding grooves 104 are provided at equal intervals around the platform groove 103; The driving mechanism includes a boss 501, multiple groups of second springs 502, and four slides 503. The boss 501 is installed in the platform groove 103. Multiple groups of second springs 502 are arranged between the boss 501 and the platform groove 103. The four slides 503 are slidably installed in the four slide grooves 104 respectively. A fourth spring 106 is provided between one side of the slide 503 and the inner wall of one side of the slide groove 104. The fourth spring 106 is in a compressed state. It should be noted that the depth of the platform groove 103 is greater than the height of the boss 501 and the depth of the slide groove 104. In this way, when the boss 501 squeezes the second spring 502, there will be enough space for the second spring 502 to expand and contract, avoiding the second spring 502 from being over-extruded and unable to recover. During the specific implementation process, the depth of the platform groove 103, the height of the boss 501 and the depth of the slide groove 104 can be set according to the structural elastic limit of the second spring 502.

[0050] One end of the slide plate 503 facing the inside of the table groove 103 is a clamping end 5031 , and the clamping end 5031 is a triangular column structure with an inclined upper surface; A gear 402 is fixedly provided in the middle of the second screw rod 401 , and a tooth groove 5032 is provided on the top of the slide plate 503 , and the gear 402 is meshedly connected with the tooth groove 5032 .

[0051] It should be noted that the gear 402 of the second screw 401 installed in the transverse track 101 and the gear 402 of the second screw 401 installed in the longitudinal track 102 have different diameters, but the diameters of the second screw 401 are the same. The purpose is to avoid the second screw 401 installed in the transverse track 101 and the second screw 401 installed in the longitudinal track 102 being located on the same horizontal plane, resulting in an unreasonable transmission structure.

[0052] When implementing it specifically, Figure 10 As shown, the gear 402 of the second screw 401 installed in the transverse track 101 is set as the first gear, and the gear 402 of the second screw 401 installed in the longitudinal track 102 is set as the second gear. Let the radius a of the second screw 401, the radius b of the first gear, and the radius c of the second gear, and the diameter of the threaded hole opened in the center of the first gear and the second gear be the same as the diameter of the second screw 401. The relationship between the three is c=3a+2b.

[0053] In this embodiment, when the refrigeration plate 1000 is placed on the load-bearing plate 1, the gravity of the refrigeration plate 1000 presses the boss 501 into the table groove 103. During the downward movement of the boss 501, the clamping end 5031 of the slide 503 is squeezed, causing the slide 503 to move into the slide groove 104 and squeeze the fourth spring 106. During the movement of the slide 503 in the slide groove 104, the tooth groove 5032 at the top of the slide 503 cooperates with the gear 402 to drive the second screw 401 to rotate, thereby driving the four groups of the extrusion mechanism 2 to move toward the center of the load-bearing plate 1, and the carbon fiber plate 202 on the extrusion mechanism 2 squeezes the outer wall of the refrigeration plate 1000.

[0054] When the cooling plate 1000 is removed from the bearing plate 1, the boss 501 moves upward due to the elastic force of the second spring 502. At this time, the slide plate 503 is moved out of the slide groove 104 due to the elastic force of the fourth spring 106, thus returning the slide plate 503 to its original position and allowing it to drive the extrusion mechanism 2 to compress the cooling plate 1000 again when the cooling plate 1000 is welded. The return of the slide plate 503 causes the second screw 401 to rotate, thereby driving the four sets of extrusion mechanisms 2 away from the center of the bearing plate 1.

[0055] The entire process realizes the process of automatically squeezing and fitting or moving away from the refrigeration plate 1000.

[0056] Furthermore, both ends of the transverse rail 101 and the longitudinal rail 102 are provided with limit slots 105, and both ends of the second screw 401 are provided with limit blocks 4011, which are installed in the limit slots 105. It should be noted that the limit blocks 4011 and the limit slots 105 are both circular, and the limit blocks 4011 can rotate in the limit slots 105.

[0057] In this embodiment, the limiting block 4011 and the limiting groove 105 are snap-fitted together so that the second screw rod 401 does not move during rotation, thereby ensuring that the gear 402 is meshed and connected with the tooth groove 5032 .

[0058] Further, if Figure 8 As shown, the telescopic rod 201 includes a barrel 20001, a bean nail 20002 and a telescopic barrel 20003, and the telescopic barrel 20003 is installed in the barrel 20001; One end of the bean nail 20002 passes through the interior of the telescopic cylinder 20003, and the other end of the bean nail 20002 passes through the outside of the cylinder 20001. One end of the bean nail 20002 is connected to the inner wall of the telescopic cylinder 20003 via a third spring 20004. The cylinder 20001 is provided with a plurality of through holes 200011. The bean nail is protruded from the outside of the cylinder 20001 through the through holes 200011 due to the elastic force of the third spring 20004.

[0059] In this embodiment, when the telescopic rod 201 is a spring telescopic rod, due to the elastic force, the squeezing mechanism 2 may be away from the refrigeration plate 1000 without a locking structure. The telescopic rod 201 of this embodiment includes a cylinder 20001, a bean nail 20002 and a telescopic cylinder 20003, which is a second embodiment of the telescopic rod 201. This embodiment requires manual control of the extension and fixation of the telescopic rod 201. The advantage of this technical solution is that it can still fit tightly to the outer wall of the refrigeration plate 1000 without the above-mentioned locking structure, and will not move away from the refrigeration plate 1000 due to the action of elastic force.

[0060] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A brazing device platform for vacuum brazing of refrigeration panels, characterized in that: It comprises a load-bearing plate (1) and four groups of extrusion mechanisms (2) arranged in an annular manner on the load-bearing plate (1); The extrusion mechanism (2) comprises a moving body, a plurality of telescopic rods (201) and a carbon fiber plate (202); the carbon fiber plate (202) and the moving body are connected via the plurality of telescopic rods (201); the moving body drives the carbon fiber plate (202) to extrude the outer side of the refrigeration plate.

2. The brazing device platform for vacuum brazing of refrigeration panels according to claim 1, characterized in that: The telescopic rod (201) comprises a cylinder (2011), a first spring (2012) and a thin rod (2013); the thin rod (2013) is installed inside the cylinder (2011); the bottom of the cylinder (2011) is connected to one end of the thin rod (2013) via the first spring (2012).

3. The brazing device platform for vacuum brazing of refrigeration panels according to claim 2, characterized in that: Locking structures are provided at both ends of the extrusion mechanisms (2); when the four groups of extrusion mechanisms (2) move a certain distance toward the refrigeration plate, the adjacent ends of the extrusion mechanisms (2) in each group are locked to each other through the locking structures; The upper surface and the lower surface of the carbon fiber plate (202) are both provided with hook grooves (2021), and the end of the telescopic rod (201) is provided with a hook (2014), and the hook (2014) is hooked in the hook groove (2021).

4. The brazing device platform for vacuum brazing of refrigeration panels according to claim 3, characterized in that: A protrusion (203) is provided on each side of the movable body, the end of the protrusion (203) is provided with an inclined surface, and the minimum angle between the inclined surface and the side surface of the protrusion (203) is 45°; The locking structure comprises a clamping block (2031), a clamping groove (2032) and a clamping tongue (2033) provided in the inside of the two protrusions (203). The latch tongue (2033) extends from the upper surface of the protrusion (203) to the interior of the latch groove (2032); a through hole (20311) is provided on the latch block (2031), and the latch tongue (2033) is engaged with the through hole (20311); The structure of the clamping block (2031) is the same as that of the clamping slot (2032), and the clamping block (2031) is an isosceles right triangle body.

5. The brazing device platform for vacuum brazing of refrigeration panels according to claim 4, characterized in that: The latch tongue (2033) comprises a cap portion (20331) and a rod portion (20332); a third spring (2034) is connected between the cap portion (20331) and the upper surface of the protrusion (203); and in a natural state, the latch tongue (2033) extends into the interior of the latch slot (2032) under the elastic force of the third spring (2034); The end of the rod portion (20332) is provided with an inclined surface, and the inclined surface is provided toward the outside of the slot (2032).

6. The brazing device platform for vacuum brazing of refrigeration panels according to claim 3, characterized in that: The movable body comprises a movable plate (301), a first screw rod (302), and two movable blocks (303), wherein two ends of the first screw rod (302) are rotatably connected to two ends of the movable plate (301). The first screw rod (302) has two threaded parts, which are respectively located at two ends of the first screw rod (302), and the thread directions of the two threaded parts are opposite, and the two moving blocks (303) are respectively threadedly connected to the two threaded parts; Knobs (3021) are provided at both ends of the first screw rod (302); The plurality of telescopic rods (201) are evenly arranged on one side of the moving block (303).

7. The brazing device platform for vacuum brazing of refrigeration panels according to claim 2, characterized in that: The brazing device platform also includes a transmission mechanism and a driving mechanism; The upper surface of the load-bearing plate (1) is provided with at least two transverse rails (101) and two longitudinal rails (102), and connecting blocks (2035) are provided at both ends of the bottom of the movable body; The transmission mechanism is connected to the connecting blocks (2035) on the four groups of extrusion mechanisms (2), and the driving mechanism drives the four groups of extrusion mechanisms (2) to move via the transmission mechanism.

8. The brazing device platform for vacuum brazing of refrigeration panels according to claim 7, characterized in that: The transmission mechanism comprises four second screw rods (401) respectively installed in the two transverse rails (101) and the two longitudinal rails (102); The second screw (401) has two threaded portions, which are respectively located at the two ends of the second screw (401), and the thread directions of the two threaded portions are opposite. The connecting blocks (2035) on the two opposite groups of extrusion mechanisms (2) are respectively threadedly connected to the two ends of the second screw (401), and the two connecting blocks (2035) on each group of extrusion mechanisms (2) are respectively connected to two second screws (401) that are parallel to each other.

9. The brazing device platform for vacuum brazing of refrigeration panels according to claim 8, characterized in that: A platform groove (103) is provided at the center of the upper surface of the load-bearing plate (1), and four sliding grooves (104) are provided at equal intervals around the platform groove (103); The driving mechanism includes a boss (501), multiple groups of second springs (502), and four slides (503); the boss (501) is installed in the platform groove (103); the multiple groups of second springs (502) are arranged between the boss (501) and the platform groove (103); the four slides (503) are slidably installed in the four slide grooves (104) respectively; a fourth spring (106) is provided between one side of the slide (503) and the inner wall of one side of the slide groove (104); and the fourth spring (106) is in a compressed state; One end of the slide plate (503) facing the inside of the table groove (103) is a clamping end (5031), and the clamping end (5031) is a triangular column structure, and the upper surface is an inclined surface; A gear (402) is fixedly provided in the middle of the second screw rod (401), a tooth groove (5032) is provided at the top of the slide plate (503), and the gear (402) is meshedly connected with the tooth groove (5032).

10. The brazing device platform for vacuum brazing of refrigeration panels according to claim 8, characterized in that: Both ends of the transverse track (101) and the longitudinal track (102) are provided with limiting grooves (105), and both ends of the second screw rod (401) are provided with limiting blocks (4011), and the limiting blocks (4011) are installed in the limiting grooves (105).

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