Brazing equipment for integral soldering lug type PCBN blade

Abstract

The invention discloses brazing equipment for an integral soldering lug type PCBN blade, and particularly relates to the technical field of PCBN blade welding, the brazing equipment comprises an equipment body, a tray and a supporting mechanism, the supporting mechanism comprises a fixing piece arranged on the tray, a supporting piece is arranged at the end, away from the tray, of the fixing piece, and a positioning assembly is arranged in the supporting piece; when the movable part moves downwards, the movable part drives the pressing disc to drive the blade to reciprocate in the horizontal direction, the fixed part can fix the base body in the welding process, and the positioning assembly can drive the blade to move relative to the base body in the welding process so that the blade can be aligned to the base body. After the welding flux is evenly smeared between the blade and the welding face of the base body, the blade and the base body are positioned and fixed through the positioning columns, and therefore the problems that after the welding flux is melted, welding seam filling is uneven, and after welding is completed, the blade possibly inclines relative to the base body, and follow-up use is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCBN blade welding, and more particularly to a brazing device for an integral welding piece type PCBN blade. Background Art

[0002] PCBN (polycrystalline cubic boron nitride), as an ultra-hard tool material, offers significant advantages in high-speed, high-efficiency machining of difficult-to-machine materials such as hardened steel, cast iron, and high-temperature alloys due to its extremely high hardness, thermal stability, and wear resistance. PCBN tools are typically brazed to securely connect small blades to a carbide or steel substrate. During the brazing process, flux (or a welding sheet) is applied to the welding layer between the blade material and the carbide substrate, and the welded area is heated to melt the flux for welding. However, once the flux melts, the flux between the welding layers changes from solid to liquid, which can cause the blade to float against the carbide substrate, resulting in an offset between the blade and the carbide substrate after welding.

[0003] Chinese patent application number 202411496252.8 discloses a tool brazing heat treatment tool. The invention includes an oven, a turntable rotatably connected to the oven, a connecting disk rotatably connected to the turntable, and a plurality of limit sockets provided on the connecting disk; an arc-shaped jacket, a plurality of which are provided, and a folding plate is rotatably connected to the outer wall of the top of each arc-shaped jacket. An expansion clamping mechanism for controlling the movement of the arc-shaped jacket is provided inside the connecting disk, and the bottom end of the arc-shaped jacket is slidably connected to the inner wall of the connecting disk. The invention uses an expansion clamping mechanism to control the movement of each arc-shaped jacket to clamp the tool head from the inside, and then adjusts the length of the threaded rod of the blade clamping mechanism by rotating to press the blade tightly, pressing the blade onto the tool head, and cooperating with the side wrapping effect of the insertion rod to ensure the firm placement of the blade.

[0004] However, after the flux melts, it may flow, resulting in uneven weld filling. At the same time, bubbles may enter the weld, affecting the stability of the weld. After welding, the blade may tilt relative to the substrate, affecting subsequent use. Therefore, the present invention proposes a brazing device for integral welded sheet PCBN blades to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a brazing device for an integral welding piece type PCBN insert to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a brazing device for integrally welded sheet PCBN blades, comprising: a device body and a tray, and a support mechanism, wherein the support mechanism includes a fixing member disposed on the tray, a support member disposed at one end of the fixing member away from the tray, and a positioning assembly disposed within the support member; the fixing member is capable of securing the substrate during welding, and the positioning assembly is capable of first driving the blade to reciprocate, thereby generating relative displacement with the substrate, and then aligning the blade with the substrate during welding.

[0007] Preferably, a mounting groove is provided inside the support member, and a first roller is rollingly connected to the mounting groove. There are multiple first rollers that are alternately arranged on both sides of the mounting groove.

[0008] Preferably, the positioning assembly includes a movable part arranged inside the mounting groove, and second rollers are respectively connected to the two sides of the movable part in a rolling manner. The second rollers and the first rollers are arranged relative to each other. When the movable part moves vertically inside the mounting groove, the first roller can squeeze the corresponding second roller, driving the movable part to move toward the end away from the first roller.

[0009] Preferably, both side walls of the mounting groove are provided with sliding grooves, each of the sliding grooves is slidably connected to a piston cylinder, and both sides of the movable part are fixedly connected to piston columns, which are slidably connected to the inner wall of the piston cylinder.

[0010] Preferably, a first elastic member is provided inside the mounting groove, and the first elastic member is multiple and corresponds to the piston cylinder respectively, one end of the first elastic member is fixedly connected to the inner wall of the mounting groove, and the other end of the first elastic member is fixedly connected to the piston cylinder, and the support member is multiple and each support member corresponds to a blade setting.

[0011] Preferably, one end of the movable part is fixedly connected to a positioning cylinder, the interior of the positioning cylinder is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a pressure plate, and the end of the pressure plate away from the sliding rod is in contact with the blade.

[0012] Preferably, the positioning cylinder is fixedly connected to a positioning column at one end away from the movable part, and the positioning column is conical at one end away from the positioning cylinder. There are multiple positioning columns and they are symmetrically arranged along the middle section of the support part. The outer walls of the multiple positioning columns can respectively fit with the outer walls on both sides of the blade and the base.

[0013] Preferably, an air groove is provided inside the fixing part, a slider is slidably connected inside the air groove, a fixing block is slidably connected inside the fixing part, one end of the fixing block extends out of the fixing part, and the fixing blocks are multiple and distributed in a circumferential array.

[0014] Preferably, the fixing piece is detachably fixed to the tray, a mounting hole is provided at one end of the tray, a top column is provided in the mounting hole, and the top column can squeeze the slider when the fixing piece is installed, and there are multiple mounting holes.

[0015] Preferably, a heating chamber for welding blades is provided inside the equipment body, and there is at least one tray, which is detachably fixedly connected to the equipment body.

[0016] The technical effects and advantages of the present invention are as follows:

[0017] In the process of downward movement of the movable part of the present invention, the pressure plate is first driven to drive the blade to reciprocate in the horizontal direction, so that the flux is evenly applied between the blade and the welding surface of the substrate, and then the blade and the substrate are positioned and fixed by the positioning column, thereby preventing the problem of uneven welding filling after the flux melts, the blade may tilt relative to the substrate after welding is completed, and the blade and the substrate may offset after welding is completed, affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the supporting mechanism and the tray of the present invention when they are installed.

[0020] Figure 3 It is a schematic diagram of the overall structure of the tray of the present invention.

[0021] Figure 4 It is a schematic diagram of the overall structure of the support mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the overall structure of the positioning component of the present invention.

[0023] Figure 6 It is a cross-sectional view of the overall structure of the support mechanism of the present invention.

[0024] Figure 7 This is a structural cross-sectional view of the mounting groove of the present invention.

[0025] Figure 8 This is a schematic diagram of the state of the support assembly of the present invention when positioning the blade.

[0026] The accompanying drawings are marked as follows: 1. Equipment body; 2. Tray; 21. Mounting hole; 22. Top column; 3. Support mechanism; 31. Fixing part; 311. Fixing block; 312. Air groove; 313. Slider; 32. Supporting part; 33. Mounting groove; 34. First roller; 35. Piston cylinder; 36. First elastic part; 4. Positioning assembly; 41. Movable part; 411. Second roller; 412. Piston column; 42. Positioning cylinder; 43. Slide rod; 44. Pressure plate; 45. Positioning column. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Example 1

[0029] In the actual production process, after the flux melts, the flux between the welding layers changes from solid to liquid, which may cause floating between the blade and the cemented carbide substrate, resulting in offset between the blade and the cemented carbide substrate after welding. This embodiment is specially invented to solve the above problem.

[0030] See also Figures 1 to 8 As shown, a brazing device for an integral sheet-type PCBN blade according to one embodiment of the present invention includes a device body 1 and a tray 2. A support mechanism 3 includes a fixing member 31 disposed on the tray 2. A support member 32 is disposed at an end of the fixing member 31 away from the tray 2. A positioning assembly 4 is disposed within the support member 32. The fixing member 31 can fix the substrate during welding. The positioning assembly 4 can first drive the blade to reciprocate and generate relative displacement with the substrate during welding, and then align the blade with the substrate.

[0031] See also Figure 6 and Figure 7 As shown, a mounting groove 33 is defined inside the support member 32 , and a first roller 34 is rollingly connected to the mounting groove 33 . There are a plurality of first rollers 34 , which are alternately arranged on both sides of the mounting groove 33 .

[0032] See also Figure 5 and Figure 6As shown, the positioning assembly 4 includes a movable part 41 arranged inside the mounting groove 33, and the second rollers 411 are respectively connected in a rolling manner on both sides of the movable part 41. The second rollers 411 and the first rollers 34 are arranged opposite to each other. When the movable part 41 moves in the vertical direction inside the mounting groove 33, the first rollers 34 can squeeze the corresponding second rollers 411, driving the movable part 41 to move toward the end away from the first roller 34. In the process of the movable part 41 moving in the vertical direction, the first rollers 34 alternately arranged on both sides of the mounting groove 33 squeeze the second rollers 411 arranged on both sides of the movable part 41 in turn, so that the movable part 41 moves back and forth in the process of moving in the vertical direction.

[0033] See also Figure 7 As shown, the two side walls of the mounting groove 33 are respectively provided with a slide groove, and the piston cylinder 35 is slidably connected inside each slide groove. The two sides of the movable member 41 are respectively fixedly connected with a piston column 412, and the piston column 412 is slidably connected to the inner wall of the piston cylinder 35. A first elastic member 36 is provided inside the mounting groove 33. There are multiple first elastic members 36 and they correspond to the piston cylinder 35 respectively. One end of the first elastic member 36 is fixedly connected to the inner wall of the mounting groove 33, and the other end of the first elastic member 36 is fixedly connected to the piston cylinder 35. Figure 4 As shown, there are multiple support members 32, each support member 32 is used to support a blade, and an elastic element is provided inside the piston cylinder 35, such as a spring or elastic gas, one end of the elastic element is fixedly connected to the inner wall of the piston cylinder 35, and the other end is fixedly connected to the piston column 412, and a temperature-sensing cylinder is provided inside the mounting groove 33, one end of the temperature-sensing cylinder is fixedly connected to the mounting groove 33, and the first elastic member 36 is sleeved on the outside of the temperature-sensing cylinder, and a sliding column is slidably connected inside the temperature-sensing cylinder, one end of the sliding column is fixedly connected to the piston cylinder 35, and a temperature-sensing medium is provided inside the temperature-sensing cylinder, which can change its physical state according to temperature, such as mineral oil, etc., which is not limited here. When the temperature reaches the high temperature threshold, the temperature-sensing medium vaporizes, and the sliding column slides downward inside the temperature-sensing cylinder, driving the first elastic member 36 to stretch, and when the temperature is lower than the low temperature threshold, it liquefies, and the first elastic member 36 recovers, driving the sliding column to slide upward inside the temperature-sensing cylinder. This existing technology will not be described in detail here.

[0034] See also Figure 4 and Figure 6 As shown, one end of the movable part 41 is fixedly connected to the positioning cylinder 42, and the interior of the positioning cylinder 42 is slidably connected to the slide rod 43. One end of the slide rod 43 is fixedly connected to the pressure plate 44, and the end of the pressure plate 44 away from the slide rod 43 is in contact with the blade. The surface of the pressure plate 44 in contact with the blade is provided with textures that increase friction. When the flux is in a molten state, the friction of the welding surface between the blade and the substrate is reduced. When the welding is completed, the blade and the substrate are fixed by the flux.

[0035] See also Figure 8As shown, the end of the positioning cylinder 42 away from the movable part 41 is fixedly connected to the positioning column 45, and the end of the positioning column 45 away from the positioning cylinder 42 is conical. There are multiple positioning columns 45 and they are symmetrically arranged along the middle section of the support part 32. The outer walls of the multiple positioning columns 45 can respectively fit with the outer walls on both sides of the blade and the base.

[0036] See also Figure 6 As shown, an air groove 312 is opened inside the fixing part 31, a slider 313 is slidably connected inside the air groove 312, and a fixing block 311 is slidably connected inside the fixing part 31. One end of the fixing block 311 extends out of the fixing part 31, and the other end is located inside the air groove 312. There are multiple fixing blocks 311 and they are distributed in a circumferential array.

[0037] See also Figure 2 As shown, the fixing member 31 is detachably fixed to the tray 2. Figure 3 As shown, a mounting hole 21 is opened at one end of the tray 2, and a top column 22 is set in the mounting hole 21. The top column 22 can squeeze the slider 313 when the fixing member 31 is installed. There are multiple mounting holes 21.

[0038] See also Figure 1 As shown, a heating chamber for welding blades is provided inside the device body 1, and there is at least one tray 2, which is detachably fixedly connected to the device body 1. When multiple trays 2 are provided inside the device body 1, the multiple trays 2 are stacked in sequence inside the device body 1, and the tray 2 at the bottom is detachably fixedly connected to the device body 1.

[0039] When in use, a group of substrates and blades coated with flux or placed with welding sheets (hereinafter referred to as flux) are placed on the tray 2, and a support mechanism 3 of corresponding specifications to the substrate and blade is selected and installed in the mounting hole 21 of the tray 2. During the installation process, the top column 22 squeezes the slider 313 inside the air groove 312 of the fixing part 31, so that the slider 313 slides upward to squeeze the gas inside the air groove 312, thereby causing the fixing block 311 to slide toward the outside of the fixing part 31 to squeeze the substrate and fix the substrate. When the support mechanism 3 is installed, the tray 2 is installed inside the equipment body 1 and the blade and substrate are heated through the heating chamber. When the temperature is heated to a temperature higher than the melting temperature of the flux, the temperature reaches the high temperature threshold of the temperature-sensitive medium, and the temperature-sensitive medium vaporizes to make the slider 313 slide upward to squeeze the gas inside the gas groove 312. The column slides downward in the temperature-sensing cylinder, driving the first elastic member 36 to extend, so that the piston cylinder 35 drives the movable member 41 to move downward, so that the side walls of the multiple positioning columns 45 are respectively in contact with the side walls on both sides of the blade and the base, fixing the blade and the base. When the welding is completed, the temperature gradually decreases. When the temperature is lower than the low-temperature threshold of the temperature-sensing medium, the temperature-sensing medium liquefies. At this time, the temperature is lower than the melting temperature of the flux, the flux solidifies, the first elastic member 36 recovers, and the positioning column 45 gradually moves upward to restore the initial state to complete the welding. The blade and the base are fixed by multiple positioning columns 45, thereby preventing the problem of the blade floating on the base due to the flux changing from solid to liquid when the flux melts, and the position of the blade and the base being offset after the welding is completed.

[0040] Example 2

[0041] In actual use, it was found that after the flux melted, the flux might flow and accumulate on one side, resulting in uneven weld filling. At the same time, bubbles might enter the weld, affecting the stability of the welding. After welding was completed, the blade might tilt relative to the substrate, affecting subsequent use. Further improvements were made based on the above embodiments.

[0042] On the basis of the above-mentioned embodiments, when in use, when the supporting mechanism 3 is installed, at this time the fixed block 311 fixes the base body, and the pressing disc 44 is in contact with the surface of the blade, and the side surface of the positioning column 45 has not yet contacted the side surface of the blade and the base body, when the temperature is heated to a temperature higher than the melting temperature of the soldering agent, at this time the temperature reaches the high-temperature threshold of the temperature-sensing medium, the first elastic member 36 is elongated, so that the piston cylinder 35 drives the movable member 41 to move downward, in the moving process, the first roller 34 alternately arranged on both sides of the installation groove 33 sequentially extrudes the second roller 411 arranged on both sides of the movable member 41, so that the movable member 41 makes horizontal reciprocating motion in the downward moving process, so that the positioning cylinder 42 drives the sliding rod 43 and the pressing disc 44 to make horizontal reciprocating motion, because the soldering agent is melted, at this time the friction between the blade and the soldering surface of the base body is far less than the friction between the pressing disc 44 and the contact surface of the blade, so that the pressing disc 44 drives the blade to make horizontal reciprocating motion, so that the soldering agent between the blade and the soldering surface of the base body is evenly coated, because the piston cylinder 35 is internally provided with an elastic element, when one side of the movable member 41 is extruded, the movable member 41 moves to the unextruded side, so that the elastic element in the piston cylinder 35 on the extruded side is stretched, and the elastic element in the piston cylinder 35 on the other side is compressed, when the movable member 41 moves downward to the lowermost first roller 34, at this time the movable member 41 is no longer extruded, and the elastic elements in the piston cylinders 35 on both sides recover, so that the movable member 41 moves to the center of the installation groove 33, so that the pressing disc 44 drives the blade to align with the base body, at this time the movable member 41 continues to move downward, and the side surfaces of the plurality of positioning columns 45 are in contact with the side surfaces of the blade and the base body, so as to fix the blade and the base body, preventing the blade and the base body from deviating, through the downward moving process of the movable member 41, the pressing disc 44 is first driven to drive the blade to make horizontal reciprocating motion, so that the soldering agent is evenly coated between the blade and the soldering surface of the base body, and then the positioning column 45 is used to fix the blade and the base body, so as to prevent the soldering agent from being unevenly filled after being melted, and the blade may be inclined relative to the base body after the welding is completed, which affects the subsequent use.

[0043] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A brazing device for integral sheet-type PCBN blades, comprising a device body (1) and a tray (2), characterized in that: Also includes: A support mechanism (3), the support mechanism (3) comprising a fixing member (31) disposed on the tray (2), a support member (32) disposed at one end of the fixing member (31) away from the tray (2), and a positioning assembly (4) disposed inside the support member (32); The fixing member (31) can fix the base during welding, and the positioning assembly (4) can first drive the blade to move back and forth to generate relative displacement with the base during welding, and then align the blade with the base.

2. The brazing equipment for integral welded sheet PCBN inserts according to claim 1, characterized in that: A mounting groove (33) is provided inside the support member (32), and the mounting groove (33) is rollingly connected to a first roller (34). The first rollers (34) are multiple and alternately arranged on the two sides of the mounting groove (33).

3. The brazing equipment for integrally welded PCBN blades according to claim 2, characterized in that: The positioning assembly (4) includes a movable member (41) arranged inside the mounting groove (33), and second rollers (411) are respectively connected in a rolling manner on both sides of the movable member (41), and the second rollers (411) and the first rollers (34) are arranged relative to each other. When the movable member (41) moves in a vertical direction inside the mounting groove (33), the first rollers (34) can squeeze the corresponding second rollers (411), thereby driving the movable member (41) to move toward an end away from the first rollers (34).

4. The brazing equipment for integrally welded sheet PCBN inserts according to claim 3, characterized in that: The two side walls of the installation groove (33) are respectively provided with sliding grooves, and a piston cylinder (35) is slidably connected inside each of the sliding grooves. The two sides of the movable part (41) are respectively fixedly connected with piston columns (412), and the piston columns (412) are slidably connected to the inner wall of the piston cylinder (35).

5. The brazing equipment for integrally welded sheet PCBN inserts according to claim 4, characterized in that: A first elastic member (36) is provided inside the mounting groove (33), and the first elastic member (36) is multiple and corresponds to the piston cylinder (35) respectively. One end of the first elastic member (36) is fixedly connected to the inner wall of the mounting groove (33), and the other end of the first elastic member (36) is fixedly connected to the piston cylinder (35). A temperature-sensing tube is provided inside the mounting groove (33), and the first elastic member (36) is sleeved on the outside of the temperature-sensing tube. A sliding column is slidably connected inside the temperature-sensing tube. There are multiple support members (32), and each support member (32) corresponds to a blade setting.

6. The brazing equipment for integrally welded sheet PCBN inserts according to claim 5, characterized in that: One end of the movable part (41) is fixedly connected to a positioning cylinder (42), the interior of the positioning cylinder (42) is slidably connected to a slide rod (43), one end of the slide rod (43) is fixedly connected to a pressure plate (44), and the end of the pressure plate (44) away from the slide rod (43) contacts the blade.

7. The brazing equipment for integrally welded sheet PCBN inserts according to claim 6, characterized in that: The end of the positioning cylinder (42) away from the movable part (41) is fixedly connected to a positioning column (45), and the end of the positioning column (45) away from the positioning cylinder (42) is conical. There are multiple positioning columns (45) and they are symmetrically arranged along the middle section of the support member (32). The outer walls of the multiple positioning columns (45) can respectively fit with the outer walls of the blade and the outer walls of both sides of the base.

8. The brazing equipment for integrally welded sheet PCBN inserts according to claim 7, characterized in that: An air groove (312) is provided inside the fixing member (31), a slider (313) is slidably connected inside the air groove (312), a fixing block (311) is slidably connected inside the fixing member (31), one end of the fixing block (311) extends out of the fixing member (31), and the fixing blocks (311) are multiple and distributed in a circumferential array.

9. The brazing equipment for integrally welded sheet PCBN inserts according to claim 8, characterized in that: The fixing member (31) is detachably fixedly connected to the tray (2); a mounting hole (21) is provided at one end of the tray (2); a top column (22) is provided in the mounting hole (21); the top column (22) can press the slider (313) when the fixing member (31) is installed; and there are multiple mounting holes (21).

10. The brazing equipment for integral welded sheet PCBN inserts according to claim 9, characterized in that: A heating chamber for welding blades is provided inside the device body (1), and there is at least one tray (2), which is detachably fixedly connected to the device body (1).

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