Brazing system suitable for clad sheet

Abstract

According to the brazing system suitable for the clad sheet, a moving device is designed, overall horizontal movement of a material suction device and an adhesive dispensing device is achieved in the mode that a plurality of sliding rails are matched, preliminary vertical movement of the material suction device and the adhesive dispensing device is achieved through a lifting air cylinder, and vertical movement with high precision is achieved through a positioning air cylinder; accurate positioning in the vertical direction is achieved, the situation that in the feeding process and the brazing process, due to unstable pressure, an adsorption fault occurs or a welding layer is too thin is avoided, and the brazing quality qualification rate is increased; according to the material suction device, through the vacuum adsorption principle, the composite sheets are adsorbed to achieve the automatic feeding function, meanwhile, the structure is convenient and fast, and the feeding efficiency is improved. In addition, the scaling powder dispensing device achieves automatic dispensing, manual operation is not needed any more, it is guaranteed that scaling powder is evenly added, and the overall operation efficiency is further improved.

Description

Technical Field

[0001] The invention belongs to the field of industrial automation, and in particular relates to a brazing system suitable for composite sheets. Background Art

[0002] Polycrystalline diamond composite sheets are mainly used in cutting tools on drilling tools in the process of oil, coal mining, etc. Composite sheets are an extremely important part in the production process of drilling tools for oil, coal mining, etc.

[0003] In the prior art, composite sheets are mostly produced by brazing. The composite sheet brazing process mainly includes flame brazing, induction brazing, vacuum brazing and other process methods, and the operation method is mostly manual. The manual operation makes it difficult to control the pressure during the welding process and the amount of flux added is uneven, which leads to poor welding quality consistency and low operation efficiency. Summary of the invention

[0004] The object of the present invention is to provide a brazing system suitable for composite sheets, so as to solve the problems in the prior art that the pressure is difficult to control during the brazing of composite sheets, the amount of flux added is uneven, and the operation efficiency is low.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A brazing system suitable for composite sheets comprises a support, wherein a first slide rail extending in a longitudinal direction is arranged on the support, and a second slide rail extending in a transverse direction is slidably arranged on the first slide rail;

[0007] A lifting cylinder is slidably arranged on the second slide rail through a slide rail slider, and the output shaft of the lifting cylinder is arranged vertically downward and is connected to the positioning device and the solder flux dispensing device; the positioning device and the solder flux dispensing device are arranged in parallel;

[0008] The positioning device comprises a positioning cylinder, the output shaft of which is arranged vertically downward and connected to the material suction device;

[0009] The suction device comprises a fixing frame, on which a first feeding cylinder and a second feeding cylinder are arranged in parallel; the output shafts of the first feeding cylinder and the second feeding cylinder both vertically extend into the inner cavity of the fixing frame and are coaxially connected to the connecting head and the pressing head respectively;

[0010] The material suction device also includes a material suction seat, one side of the bottom of the material suction seat is connected to a material suction pipe, and the material suction pipe slides through the bottom of the fixed frame;

[0011] A through hole matching the diameter of the suction pipe and connected to the suction pipe is vertically opened on the suction seat; a connecting core tube is sealed and slidably arranged in the through hole, and the upper part of the connecting core tube extends out of the upper end surface of the suction seat;

[0012] The connector can be connected to the connecting core tube;

[0013] The second feeding cylinder can drive the pressing head to press down or move away from the suction seat.

[0014] The present invention also has the following features:

[0015] Furthermore, the soldering flux dispensing device comprises a glue cylinder, and a nozzle is arranged at the lower part of the glue cylinder;

[0016] The upper end of the rubber cylinder is sealed with a coupling, and the upper and lower ends of the coupling are respectively connected to the output shaft of the stirring motor and the stirring core shaft located inside;

[0017] The stirring core shaft is evenly provided with a plurality of stirring wings along the length direction;

[0018] The central axes of the rubber cylinder, the stirring motor output shaft and the stirring core shaft are colinear.

[0019] Furthermore, the bottom end of the fixing frame is connected with a connecting tube, and the connecting tube is coaxially arranged with the suction pipe;

[0020] A scraper ring is fixedly sleeved at the bottom of the connecting tube, and arc-shaped scraper plates are connected to two opposite sides of the bottom of the scraper ring.

[0021] Furthermore, the positioning cylinder is mounted on the fixing plate via a positioning nut;

[0022] A vertical limiting plate is connected to one side of the fixing plate, a limiting groove extending vertically is provided on the side of the limiting plate close to the positioning cylinder, and a limiting slider is slidably installed in the limiting groove;

[0023] The output shaft of the positioning cylinder passes through the fixing plate and is coaxially connected to the limiting rod through the adjusting nut; the side wall of the limiting rod is connected to the limiting slider through the connecting plate;

[0024] The material suction device is connected with the lower part of the limiting rod.

[0025] Furthermore, a first buffer assembly is provided on a side of the limiting rod away from the limiting plate;

[0026] The first buffer assembly comprises a guide plate; a side of the guide plate away from the limiting plate is sequentially connected with a guide block and a vertically extending guide rail from top to bottom, and a guide slider is slidably arranged on the guide rail;

[0027] A vertically arranged compression spring is connected to the side of the bottom of the guide plate away from the guide rail, and the bottom of the compression spring is connected to the sliding mounting plate; the sliding mounting plate is connected to the guide rail through a guide slider;

[0028] The material suction device is connected to the lower part of the limiting rod through a sliding mounting plate.

[0029] Furthermore, a buffer ring is provided on the fixed sleeve of the rubber cylinder, and a second buffer component is connected to one side of the buffer ring;

[0030] The first buffer component and the second buffer component have the same structure;

[0031] The bottom of the second buffer component is connected to the nozzle through a heat insulation plate.

[0032] Furthermore, it also includes a controller;

[0033] The controller is connected to the lifting cylinder, the positioning device, the material suction device and the soldering flux dispensing device respectively.

[0034] Furthermore, a first push-pull cylinder is disposed on one side of the first slide rail, and an output shaft of the first push-pull cylinder is disposed horizontally and connected to the second slide rail;

[0035] A second push-pull cylinder is disposed on one side of the second slide rail, and an output shaft of the second push-pull cylinder is disposed horizontally and connected to the slide block of the slide rail;

[0036] The first push-pull cylinder and the second push-pull cylinder are respectively connected to the controller.

[0037] Furthermore, a displacement sensor is provided on the first buffer device;

[0038] The displacement sensor is connected to the controller.

[0039] Furthermore, a vacuum generator is provided on the suction seat.

[0040] Compared with the prior art, the present invention has the following technical effects:

[0041] (I) The brazing system for composite sheets of the present invention is designed with a moving device, which realizes the horizontal movement of the suction device and the dispensing device as a whole by cooperating with multiple slide rails, realizes the preliminary vertical movement of the suction device and the dispensing device by a lifting cylinder, and realizes the vertical movement with high precision by a positioning cylinder; the precise positioning in the vertical direction is realized, and the adsorption failure or the too thin welding layer caused by the unstable pressure during the feeding process and the brazing process is avoided, thereby improving the brazing quality pass rate;

[0042] The suction device in the present invention realizes automatic feeding by adsorbing the composite sheet through the principle of vacuum adsorption, and the structure is convenient, which improves the feeding efficiency. In addition, the flux dispensing device realizes automatic dispensing, and no manual operation is required, which ensures the uniform addition of flux and further improves the overall operation efficiency.

[0043] (II) The material suction device of the present invention is suitable for the brazing system of composite sheets, which can not only realize the automatic feeding of composite sheets of different specifications, but also realize the automatic pressing action during the brazing process, and can also realize the exhaust action during the brazing process of different composite sheets through the scraper, thereby improving the brazing efficiency of the composite sheets.

[0044] (III) The dispensing device of the present invention controls the amount of dispensing by means of a dispensing valve when adding flux, thereby solving the problem of poor consistency in the amount of flux added during the brazing of composite sheets and meeting the requirements for automated brazing. During long-term brazing operations, a large amount of flux is used. By designing a motor to drive the stirring mandrel to rotate, and then driving the wing blades to stir the flux, precipitation and stratification of the flux are avoided, and the qualified rate of brazing quality is improved, making the device suitable for large-scale use and promotion in industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall structure of the brazing system applicable to the composite sheet of the present invention;

[0046] Figure 2 It is a schematic diagram of the structure of the positioning device in the present invention;

[0047] Figure 3 It is a schematic structural diagram of the material suction device in the present invention;

[0048] Figure 4 It is a schematic diagram of the structure of the flux dispensing device in the present invention;

[0049] Figure 5 It is a schematic diagram of the cross-sectional structure of the flux dispensing device in the present invention;

[0050] Figure 6 It is a schematic diagram of the cross-sectional structure of the suction seat and the suction pipe in the present invention;

[0051] Figure 7 It is a schematic diagram of the scraper plate structure in the present invention.

[0052] The meaning of the symbols in the figure is:

[0053] 1. Support; 2. First slide rail; 3. Second slide rail; 4. Slide rail slider; 5. Lifting cylinder; 6. Positioning device; 7. Flux dispensing device; 8. Suction device; 9. Connecting tube; 10. Scraper ring; 11. Scraper plate; 12. First buffer assembly; 13. Buffer ring; 14. Second buffer assembly; 15. Heat insulation board; 16. Displacement sensor;

[0054] 601, positioning cylinder; 602, positioning nut; 603, fixing plate; 604, limiting plate; 605, limiting groove; 606, limiting slider; 607, adjusting nut; 608, limiting rod; 701, rubber cylinder; 702, nozzle; 703, coupling; 704, stirring motor; 705, stirring mandrel; 706, stirring wing; 801, fixing frame; 802, first feeding cylinder; 803, second feeding cylinder; 804, connecting head; 805, pressing head; 806, suction seat; 807, suction pipe; 808, connecting core pipe; 1201, guide plate; 1202, guide block; 1203, guide rail; 1204, guide slider; 1205, compression spring; 1206, sliding mounting plate. DETAILED DESCRIPTION

[0055] It should be noted that, unless otherwise specified, all components in the present invention are components known in the prior art. For example, the displacement sensor is a known and commonly used displacement sensor.

[0056] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0057] like Figure 1 and Figure 3 As shown, a brazing system suitable for composite sheets comprises a support 1, on which a first slide rail 2 extending in the longitudinal direction is arranged, and on which a second slide rail 3 extending in the transverse direction is slidably arranged.

[0058] A lifting cylinder 5 is slidably arranged on the second slide rail 3 via a slide rail slider 4. The output shaft of the lifting cylinder 5 is arranged vertically downward and is connected to the positioning device 6 and the flux dispensing device 7. The positioning device 6 and the flux dispensing device 7 are arranged in parallel.

[0059] The positioning device 6 includes a positioning cylinder 601 , the output shaft of which is arranged vertically downward and connected to the suction device 8 .

[0060] The suction device 8 includes a fixed frame 801, on which a first feeding cylinder 802 and a second feeding cylinder 803 are arranged in parallel; the output shafts of the first feeding cylinder 802 and the second feeding cylinder 803 both vertically extend into the inner cavity of the fixed frame 801 and are coaxially connected to the connecting head 804 and the pressing head 805 respectively.

[0061] The suction device 8 also includes a suction seat 806 , and a suction pipe 807 is connected to one side of the bottom of the suction seat 806 . The suction pipe 807 slides through the bottom of the fixing frame 801 .

[0062] A through hole matching the aperture of the suction pipe 807 and connected to the suction pipe 807 is vertically provided on the suction seat 806 ; a connecting core tube 808 is slidably and sealedly arranged in the through hole, and the upper part of the connecting core tube 808 extends out of the upper end surface of the suction seat 806 .

[0063] The connector 804 can be connected to the connecting core tube 808;

[0064] The second feeding cylinder 803 can drive the pressing head 805 to press down or move away from the suction seat 806.

[0065] The brazing system for composite sheets of the present invention is designed with a moving device, which includes a first slide rail 2 and a second slide rail 3. The first slide rail 2 and the second slide rail 3 cooperate to achieve the overall horizontal movement of the suction device 8 and the flux dispensing device 7.

[0066] The lifting cylinder 5 is used to realize the preliminary vertical movement of the suction device 8 and the flux dispensing device 7, and the positioning cylinder 601 is used to realize the vertical movement with high precision; thus, precise positioning in the vertical direction is performed, which avoids adsorption failure or too thin welding layer due to unstable pressure during the feeding process and brazing process, and improves the brazing quality pass rate;

[0067] In the suction device 8, the present invention uses the principle of vacuum adsorption, and firstly makes the suction pipe 807 of the suction device stick to the composite sheet.

[0068] Secondly, the second feeding cylinder 803 is used to drive the pressing head 805 to press down until the pressing head 805 is pressed tightly; at the same time, the first feeding cylinder 802 is used to drive the connecting head 804 to move downward until it is connected with the connecting core tube 808;

[0069] Afterwards, the first feeding cylinder 802 drives the connecting head 804 to move upward in the reverse direction, the connecting core tube 808 is pulled upward, and a vacuum zone appears inside the composite sheet and the suction tube 807, thereby completing the adsorption of the composite sheet.

[0070] As a preferred solution, a vacuum generator is provided on the suction seat 806. The vacuum generator is a known existing vacuum generator, which is used to vacuum the target area. The vacuum generator is used to assist in vacuuming, which can further enhance the suction capacity of the suction tube 807 for the composite sheet.

[0071] In addition, the soldering flux dispensing device 7 is used to realize automatic dispensing, and manual operation is no longer required, thereby ensuring uniform addition of soldering flux and further improving the overall operating efficiency.

[0072] Specifically, Figure 4 and Figure 5 As shown, the solder flux dispensing device 7 includes a glue cartridge 701, and a nozzle 702 is connected to the lower part of the glue cartridge 701;

[0073] The upper part of the rubber cylinder 701 is provided with a coupling 703 which is sealed and connected, and the two ends of the coupling 703 are respectively connected to the output shaft of the stirring motor 704 and the stirring core shaft 705;

[0074] A plurality of stirring blades 706 are evenly arranged on the stirring core shaft 705 along the length direction;

[0075] The central axes of the rubber cylinder 701, the output shaft of the stirring motor 704 and the stirring core shaft 705 are collinear.

[0076] In the solder flux dispensing device 7, the nozzle 702 is conventionally selected and adopts a known and commonly used nozzle capable of controlling the dispensing amount to achieve control of the solder flux dispensing amount.

[0077] When working for a long time, there is a certain risk of solidification of the flux in the rubber cartridge 701. At this time, the stirring motor 704 is used to drive the stirring core shaft 705 to rotate, and then the stirring wings 706 stir the flux in the rubber cartridge 701 to reduce the risk of solidification of the flux.

[0078] As a preferred solution, Figure 7 As shown, the bottom end of the fixing frame 801 is connected to a connecting tube 9, and the connecting tube 9 is coaxially arranged with the suction pipe 807;

[0079] A scraper ring 10 is fixedly sleeved at the bottom of the connecting tube 9, and arc-shaped scraper plates 11 are connected to both sides of the bottom end of the scraper ring 10;

[0080] When the output shaft of the second feeding cylinder 803 is extended, the bottom of the suction pipe 807 is lower than the bottom end of the scraper plate 11 , and when the output shaft of the second feeding cylinder 803 is retracted, the bottom of the suction pipe 807 is higher than the bottom end of the scraper plate 11 .

[0081] In actual work, the preceding moving device drives the scraper plate 11 to move, realizing the moving exhaust action during brazing. According to conventional selection in the field, the scraper plate 11 is detachable and replaceable, and the corresponding scraper plate 11 is replaced according to different specifications of composite sheets to realize the moving exhaust action of composite sheets of different specifications during brazing.

[0082] The scraper ring 10 and the scraper plate 11 can be connected in an integrally formed form or in a spliced ​​form. Those skilled in the art are capable of selecting the connection form between the two according to actual needs.

[0083] As a preferred solution, the positioning cylinder 601 is mounted on the fixing plate 603 via the positioning nut 602;

[0084] A vertical limiting plate 604 is connected to one side of the fixing plate 603. A limiting groove 605 extending vertically is provided on one side of the limiting plate 604 close to the positioning cylinder 601. A limiting slider 606 is slidably installed in the limiting groove 605.

[0085] The output shaft of the positioning cylinder 601 passes through the fixed plate 603 and is coaxially connected to the limiting rod 608 through the adjusting nut 607; the side wall of the limiting rod 608 is connected to the limiting slider 606 through the connecting plate;

[0086] The suction device 8 is connected to the lower part of the limiting rod 608 .

[0087] As a preferred solution, Figure 2 As shown, a first buffer assembly 12 is provided on one side of the limiting rod 608 away from the limiting plate 604;

[0088] The first buffer assembly 12 includes a guide plate 1201; a guide block 1202 and a vertically extending guide rail 1203 are sequentially connected from top to bottom on a side of the guide plate 1201 away from the limiting plate 604, and a guide slider 1204 is slidably arranged on the guide rail 1203;

[0089] A vertically arranged compression spring 1205 is connected to one side of the bottom of the guide plate 1201 away from the guide rail 1203, and the bottom of the compression spring 1205 is connected to the sliding mounting plate 1206; the sliding mounting plate 1206 is connected to the guide rail 1203 through the guide slider 1204;

[0090] The suction device 8 is connected to the lower part of the limiting rod 608 through the sliding mounting plate 1206 .

[0091] The first buffer assembly 12 is used for buffering when the device is in use. The first buffer assembly 12 is easy to load and unload, and is convenient for disassembly during subsequent maintenance.

[0092] Furthermore, a buffer ring 13 is fixedly sleeved on the rubber sleeve 701, and a second buffer assembly 14 is connected to one side of the buffer ring 13;

[0093] The first buffer component 12 and the second buffer component 14 have the same structure;

[0094] The bottom of the second buffer assembly is connected to the nozzle 702 through the heat insulation plate 15.

[0095] As a preferred solution, it also includes a controller;

[0096] The controller is connected to the lifting cylinder 5, the positioning device 6, the material suction device 8 and the flux dispensing device 7 respectively.

[0097] According to conventional selection, the controller adopts a known existing controller, controls the corresponding components through existing algorithms, realizes automatic control, and further improves work efficiency.

[0098] Specifically, the controller is connected to the lifting cylinder 5, the positioning cylinder 601 of the positioning device 6, the nozzle 702 of the flux dispensing device 7, the stirring motor 704, the first feeding cylinder 802 and the second feeding cylinder 803 of the suction device 8 respectively.

[0099] Furthermore, a first push-pull cylinder is disposed on one side of the first slide rail 2, and an output shaft of the first push-pull cylinder is horizontally disposed and connected to the second slide rail 3;

[0100] A second push-pull cylinder is arranged on one side of the second slide rail 3, and the output shaft of the second push-pull cylinder is arranged horizontally and connected to the slide rail slider 4;

[0101] The first push-pull cylinder and the second push-pull cylinder are respectively connected to the controller.

[0102] Furthermore, a displacement sensor 16 is provided on the first buffer device;

[0103] The displacement sensor 16 is connected to the controller.

[0104] When the device is in use, the moving device and the lifting cylinder 5 are first moved to move the flux dispensing device 7 to the brazing station, and the flux is added to the welding surface through the nozzle 702.

[0105] Secondly, the moving device and the lifting cylinder 5 move the suction device 8 to the solder material taking position to absorb the solder. The solder is moved to the soldering surface of the brazing station by the moving device and the lifting cylinder 5 to complete the solder loading.

[0106] Next, the moving device and the lifting cylinder 5 move the flux dispensing device 7 to the solder on the soldering surface of the brazing station again, and add a proper amount of flux to the solder on the soldering surface;

[0107] The moving device and the lifting cylinder 5 move the suction device 8 to the composite sheet taking position, absorb the composite sheet, and move the composite sheet to the welding surface of the brazing station through the moving device and the lifting cylinder 5 to complete the PDC composite sheet solder loading.

[0108] During the brazing process, the movement of the moving device drives the suction device 8 to move, and then drives the scraper plate 11 to move. The scraper plate 11 continues to drive the composite sheet to move, thereby realizing the moving exhaust action during the brazing process.

[0109] In addition, the pressing head 805 moves down and presses on the composite sheet, so as to realize the pressing action during the brazing process. After cooling, it returns to the initial position, and the brazing of the composite sheet is completed.

Claims

1. A brazing system suitable for composite sheets, characterized in that: It comprises a support (1), wherein the support (1) is provided with a first slide rail (2) extending in the longitudinal direction, and a second slide rail (3) extending in the transverse direction is slidably provided on the first slide rail (2); A lifting cylinder (5) is slidably arranged on the second slide rail (3) via a slide rail slider (4); an output shaft of the lifting cylinder (5) is arranged vertically downward and is connected to a positioning device (6) and a solder flux dispensing device (7); the positioning device (6) and the solder flux dispensing device (7) are arranged in parallel; The positioning device (6) comprises a positioning cylinder (601), the output shaft of which is arranged vertically downward and connected to the suction device (8); The suction device (8) comprises a fixed frame (801), on which a first feeding cylinder (802) and a second feeding cylinder (803) are arranged in parallel; the output shafts of the first feeding cylinder (802) and the second feeding cylinder (803) both extend vertically into the inner cavity of the fixed frame (801) and are coaxially connected to the connecting head (804) and the pressing head (805) respectively; The material suction device (8) further comprises a material suction seat (806), one side of the bottom of the material suction seat (806) is connected to a material suction pipe (807), and the material suction pipe (807) slides through the bottom of the fixed frame (801); A through hole matching the diameter of the suction pipe (807) and connected to the suction pipe (807) is vertically provided on the suction seat (806); a connecting core tube (808) is sealed and slidably arranged in the through hole, and the upper part of the connecting core tube (808) extends out of the upper end surface of the suction seat (806); The connector (804) can be connected to the connecting core tube (808); The second feeding cylinder (803) can drive the pressing head (805) to press down or move away from the suction seat (806).

2. The brazing system for composite sheets according to claim 1, characterized in that: The soldering flux dispensing device (7) comprises a glue cylinder (701), and a nozzle (702) is arranged at the lower part of the glue cylinder (701); The upper end of the rubber cylinder (701) is sealed with a coupling (703), and the upper and lower ends of the coupling (703) are respectively connected to the output shaft of the stirring motor (704) and the stirring core shaft (705) located in 701; The stirring core shaft (705) is evenly provided with a plurality of stirring wings (706) along the length direction; The central axes of the rubber cylinder (701), the output shaft of the stirring motor (704) and the stirring core shaft (705) are colinear.

3. The brazing system for composite sheets according to claim 1, characterized in that: The bottom end of the fixing frame (801) is connected to a connecting tube (9), and the connecting tube (9) is coaxially arranged with the suction pipe (807); A scraper ring (10) is fixedly sleeved on the bottom of the connecting tube (9), and arc-shaped scraper plates (11) are connected to two opposite sides of the bottom of the scraper ring (10).

4. The brazing system for composite sheets according to claim 3, characterized in that: The positioning cylinder (601) is mounted on the fixing plate (603) via a positioning nut (602); One side of the fixing plate (603) is connected to a vertical limiting plate (604), and a limiting groove (605) extending vertically is provided on a side of the limiting plate (604) close to the positioning cylinder (601), and a limiting slider (606) is slidably installed in the limiting groove (605); The output shaft of the positioning cylinder (601) passes through the fixing plate (603) and is coaxially connected to the limiting rod (608) through the adjusting nut (607); the side wall of the limiting rod (608) is connected to the limiting slider (606) through the connecting plate; The material suction device (8) is connected to the lower part of the limiting rod (608).

5. The brazing system suitable for composite sheets according to claim 3, characterized in that: A first buffer assembly (12) is provided on a side of the limiting rod (608) away from the limiting plate (604); The first buffer assembly (12) comprises a guide plate (1201); a side of the guide plate (1201) away from the limiting plate (604) is connected with a guide block (1202) and a vertically extending guide rail (1203) in sequence from top to bottom, and a guide slider (1204) is slidably arranged on the guide rail (1203); A vertically arranged compression spring (1205) is connected to the side of the bottom of the guide plate (1201) away from the guide rail (1203), and the bottom of the compression spring (1205) is connected to the sliding mounting plate (1206); the sliding mounting plate (1206) is connected to the guide rail (1203) via a guide slider (1204); The material suction device (8) is connected to the lower part of the limiting rod (608) via a sliding mounting plate (1206).

6. The brazing system for composite sheets according to claim 5, characterized in that: The upper fixed sleeve of the rubber cylinder (701) is provided with a buffer ring (13), and one side of the buffer ring (13) is connected to a second buffer component (14); The first buffer component (12) and the second buffer component (14) have the same structure; The bottom of the second buffer component (14) is connected to the nozzle (702) via a heat insulation board (15).

7. The brazing system for composite sheets according to any one of claims 1 to 6, characterized in that: Also includes a controller; The controller is connected to the lifting cylinder (5), the positioning device (6), the material suction device (8) and the soldering flux dispensing device (7) respectively.

8. The brazing system for composite sheets according to claim 7, characterized in that: A first push-pull cylinder is arranged on one side of the first slide rail (2), and the output shaft of the first push-pull cylinder is arranged horizontally and connected to the second slide rail (3); A second push-pull cylinder is arranged on one side of the second slide rail (3), and the output shaft of the second push-pull cylinder is arranged horizontally and connected to the slide rail slider (4); The first push-pull cylinder and the second push-pull cylinder are respectively connected to the controller.

9. The brazing system for composite sheets according to claim 8, characterized in that: The first buffer device is provided with a displacement sensor (16); The displacement sensor (16) is connected to the controller.

10. The brazing system for composite sheets according to claim 1, characterized in that: The material suction seat (806) is provided with a vacuum generator.

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