A method for coating a brazing flux for a cutting tool

Abstract

The present application relates to the technical field of tool processing, and discloses a brazing flux coating method for tool brazing, S1: stacking the tool blanks in a tool blank box, pushing the tool blank at the bottom into a first slide, rotating a gear to drive a rack to slide left, and then driving a first push plate on the connecting plate to push the tool blank coated with the brazing flux to the next copper sheet station; S2: under the action of a feeding mechanism, pushing the copper sheet to the tool blank coated with the brazing flux, and simultaneously pushing the tool blank coated with the brazing flux at the brazing flux coating station to the copper sheet station to wait; S3: after reaching the insert station, first pushing the insert to the tool blank coated with the brazing flux and provided with the copper sheet by the feeding mechanism to install; S4: the clamping jaw in the clamping unit falls to grab the tool blank assembly, moves to the last discharge station to stack, and after stacking to a certain number, pushes a tool blank position forward by the discharge unit to realize automatic discharge. The present application can realize the purpose of automatic brazing flux coating and reduce the labor intensity of operators.

Description

[0001] This application is a divisional application of application number 202210187445X, filed on February 28, 2022, entitled "A flux coating device for brazing cutting tools". Technical Field

[0002] This invention relates to the field of cutting tool processing technology, and more specifically to a method for applying flux to braze cutting tools. Background Technology

[0003] Before brazing the blade body and blade in a high-frequency welding machine, flux needs to be applied to the joint. The amount and uniformity of the flux application play a crucial role in the welding quality. Currently, flux application is done manually, which is labor-intensive. Furthermore, in the actual processing, copper foil and inserts need to be mounted on the blade, but in existing technology, both are done manually, resulting in low efficiency and high labor intensity. The amount of flux applied can only be controlled by the operator's experience, making quantitative control impossible. Additionally, the current flux containers are open and lack temperature control. If the flux sits for a long time, it may solidify due to cooling and become unapplicable, requiring special heating; otherwise, the flux will solidify, prolonging the coating time and reducing coating efficiency. Summary of the Invention

[0004] The present invention aims to provide a flux coating device for tool brazing, which can achieve the purpose of automatic flux coating and reduce the labor intensity of operators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flux coating device for tool brazing, comprising a worktable, wherein a first slide and a second slide are provided on the worktable in parallel arrangement; the first slide has a flux coating station and a copper sheet mounting station in sequence, and the second slide has a mounting station and a discharge station in sequence; the worktable is also provided with a feeding mechanism, a pushing mechanism, a discharge mechanism, and a flux spraying unit for spraying flux onto the tool blank; the feeding mechanism can push the tool blank, copper sheet, and mounting plate in sequence to the flux coating station, the copper sheet station, and the mounting plate station; the pushing mechanism can convey the tool blank in the flux coating station, the copper sheet station, and the mounting plate station in sequence to the next station; the discharge mechanism can discharge the tool blank with copper sheet and mounting plate installed.

[0006] The principle and advantages of this solution are as follows: In practical applications, the blank is coated with flux, copper sheet is installed, and inserts are applied sequentially at the flux coating station, copper sheet station, and insert station. In this technical solution, flux is sprayed onto the blank through a nozzle. Compared with the manual flux coating method, this solution can automatically coat the flux, effectively reducing the labor intensity of the operator.

[0007] In addition, the feeding mechanism in this solution serves to transport raw materials, while the pushing mechanism can transport the blank from the previous station to the next station, and the discharging mechanism can discharge the blank with copper foil and inserts. This effectively achieves the purpose of automatic conveying, making each processing step of the blank more automated, improving the efficiency of the entire processing step, and reducing labor intensity.

[0008] Preferably, as an improvement, the feeding mechanism includes a blank feeding mechanism, a copper sheet feeding mechanism, and an insert feeding mechanism. The blank feeding mechanism includes a blank material box for holding blanks and a feeding cylinder. A pusher plate is connected to the output shaft of the feeding cylinder, and the feeding cylinder can drive the pusher plate to send the blank to the flux coating station of the first slide for flux coating. The copper sheet feeding mechanism includes a copper sheet material box for holding copper sheets and a copper sheet cylinder. A pusher plate is connected to the output shaft of the copper sheet cylinder, and the copper sheet cylinder can drive the pusher plate to push the copper sheet to the copper sheet station for installation. The insert feeding mechanism includes an insert material box for holding inserts and an insert cylinder. A pusher plate is connected to the output shaft of the insert cylinder, and the insert cylinder can drive the pusher plate to push the insert to the insert station for installation.

[0009] In this solution, the blank feeding mechanism, copper sheet feeding mechanism, and insert feeding mechanism can respectively transport the blank, copper sheet, and insert, making the entire spraying and installation process more orderly and automated.

[0010] Preferably, as an improvement, the feeding mechanism is capable of pushing the blank on the copper sheet station onto the second slide.

[0011] This design facilitates the pushing mechanism to move the copper-plated blank to the next inserting station for processing.

[0012] Preferably, as an improvement, the pushing mechanism includes a connecting plate, a drive box, a gear, and a rack. The connecting plate is horizontally slidably engaged with the top of the worktable. The rack is connected to the top of the connecting plate. A motor is installed inside the drive box. The gear is connected to the output shaft of the motor. The gear and the rack mesh with each other. One end of the connecting plate is connected to a first push plate and a second push plate. The first push plate and the second push plate are located in the first slide rail and the second slide rail, respectively. The meshing motion of the gear and the rack can drive the first push plate to push the cutting tool on the flux coating station to the copper foil station. At the same time, it can drive the second push plate to push the cutting tool blank with copper foil already installed on the second slide rail to the inserting station.

[0013] In this solution, the pushing mechanism can push the blank from the previous station to the next station for processing, which is more automated, can effectively improve efficiency, and reduce the labor intensity of operators.

[0014] In addition, by setting up a first push plate and a second push plate in this solution, only one set of gear and rack mechanism is needed to drive the first push plate and the second push plate to push the blank after applying the brazing flux and the blank after installing the copper sheet into the next station for processing. This can reduce the number of pushing mechanisms used, save costs to the greatest extent, make the structure of the whole device simpler, and reduce the length of the rack, thereby making the rack and connecting plate smaller.

[0015] Preferably, as an improvement, the discharge mechanism includes a clamping unit and a discharge unit. The clamping unit can clamp the blank on the insert station to the discharge station, and the discharge unit can push the blank out of the discharge station.

[0016] In this solution, the clamping unit clamps the blanks with inserts onto the discharge station for stacking. After a certain number of blanks are stacked, they are pushed forward one position. This process is repeated to push the blanks forward, thereby achieving automatic discharge and effectively reducing the labor intensity of the operator.

[0017] Preferably, as an improvement, the discharge unit includes a discharge cylinder and two discharge pads arranged in parallel to each other. The discharge pads are perpendicular to the second slide. The discharge cylinder is provided with a discharge push plate. The output shaft of the discharge cylinder extends to enable the discharge push plate to push the blank on the discharge station onto the discharge pad.

[0018] In this solution, the output shaft of the discharge cylinder can extend forward to push the blank on the discharge station onto the discharge pad. The discharge unit in this solution has a simple structure and the driving method is also simpler and more automated.

[0019] Preferably, as an improvement, the spraying unit includes a flux tank, a connecting pipe, and a metering pump. The metering pump is connected to the flux tank and can meter the flux in the flux tank. The connecting pipe is connected to the flux tank and a spray nozzle is connected to the connecting pipe.

[0020] In this solution, the metering pump can control the amount of flux dispensed. By moving the nozzle along the length of the blank to the designated position, the metering pump stops dispensing flux. By repeating this action, the effect of metered spraying can be achieved. The amount of flux can be set by parameters to ensure consistency.

[0021] Preferably, as an improvement, the flux container is detachably connected to a lid at the top.

[0022] The lid of this solution, when connected to the flux container, forms a sealed container, which facilitates pressurized pumping of flux and slows down the cooling rate of the flux inside the flux container.

[0023] Preferably, as an improvement, a heating belt is wrapped around the outer periphery of the flux barrel, and a temperature controller is provided on the heating belt.

[0024] This solution allows the flux in the flux container to maintain a constant temperature for a long time, preventing the flux from cooling and solidifying. This avoids the need to heat the flux in the flux container before spraying flux onto the tool blank, which would affect processing efficiency. Attached Figure Description

[0025] Figure 1 This is a top view of a first embodiment of a flux coating device for brazing cutting tools according to the present invention.

[0026] Figure 2 This is a perspective view of a first embodiment of a flux coating device for brazing cutting tools according to the present invention. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings include: workbench 1, flux bucket 2, first slide rail 3, second slide rail 4, discharge pad 5, feeding cylinder 7, copper sheet cylinder 8, discharge cylinder 9, insert cylinder 10, blank material box 11, copper sheet material box 12, insert material box 13, blank 14, first push plate 15, second push plate 16, pusher plate 17, discharge pusher plate 18, bucket lid 19, connecting plate 20, drive box 21, gear 22, rack 23.

[0029] Example 1

[0030] The basic implementation examples are as follows: Figure 1 and Figure 2 As shown: A flux coating device for brazing cutting tools includes a worktable 1. The worktable 1 has a first slide 3 and a second slide 4 arranged in parallel with each other. In this embodiment, the two inner sidewalls of the first slide 3 and the second slide 4 are provided with L-shaped steps, which facilitates the limiting and guiding of the cutting tool blank 14, making the process of pushing the cutting tool blank more stable and less likely to be pushed out of the slide.

[0031] The first slide rail 3 has a flux application station for applying flux and a copper sheet installation station for installing copper sheets in sequence, and the second slide rail 4 has an insert installation station for installing inserts and a material discharge station in sequence.

[0032] The workbench 1 is also equipped with a feeding mechanism, a pushing mechanism, and a discharging mechanism, as well as a spraying unit for spraying flux onto the blank 14; the feeding mechanism can push the blank 14, copper sheet, and insert sequentially to the flux coating station, copper sheet station, and insert station; the pushing mechanism can transfer the blank 14 on the flux coating station, copper sheet station, and insert station to the next station sequentially; the discharging mechanism can discharge the blank 14 with copper sheet and insert installed.

[0033] Specifically: In this embodiment, the left end of the first slide 3 is located in the middle of the second slide 4. In this embodiment, the spraying unit (not shown in the figure) includes a flux tank 2, a connecting pipe, and a metering pump. The metering pump is connected to the flux tank 2 and can meterly deliver the flux in the flux tank 2. The connecting pipe is connected to the flux tank 2 and a nozzle is connected to the connecting pipe. In this embodiment, a lid 19 is detachably connected to the top of the flux tank 2. The lid 19 is placed on the top of the flux tank and is detachably fixed to the flux tank 2 by bolts. The lid 19 and the flux tank form a sealed container, which facilitates the metering pump to meterly output the flux, thereby metering the flux onto the blank 14.

[0034] The feeding mechanism includes a blank 14 feeding mechanism, a copper sheet feeding mechanism, and an insert feeding mechanism. The blank 14 feeding mechanism includes a blank material box 11 for holding blanks 14 and a feeding cylinder 7. In actual use, multiple blanks 14 are stacked in the blank material box 11. A pusher plate 17 is connected to the output shaft of the feeding cylinder 7. The extension and retraction direction of the output shaft of the feeding cylinder 7 is perpendicular to the first slide rail 3. The pusher plate 17 sends the blank 14 to the flux coating station of the first slide rail 3 for flux coating.

[0035] The copper sheet feeding mechanism includes a copper sheet material box 12 for holding copper sheets and a copper sheet cylinder 8. Multiple copper sheets are also stacked inside the copper sheet material box 12. A pusher plate 17 is connected to the output shaft of the copper sheet cylinder 8. The extension and retraction direction of the output shaft of the copper sheet cylinder 8 is perpendicular to the first slide rail 3. When the output shaft of the copper sheet cylinder 8 extends, it can drive the pusher plate 17 on it to push the copper sheet to the copper sheet station to install the copper sheet on the brazed blank 14.

[0036] The insert feeding mechanism includes an insert box 13 for holding inserts and an insert cylinder 10. The insert box 13 also contains multiple inserts stacked on top of each other. The output shaft of the insert cylinder 10 is connected to a pusher plate 17. The insert cylinder 10 is located on the left side of the first slide rail 3, and the extension and retraction direction of the output shaft of the insert cylinder 10 is perpendicular to the second slide rail 4. The extension of the output shaft of the insert cylinder 10 can push the insert onto the pusher plate 17 to the inserting station to install the insert on the blank 14 with the copper sheet installed.

[0037] The feeding mechanism can push the blank 14 on the copper sheet station to the second slide rail 4. In this embodiment, the output shaft of the copper sheet cylinder 8 in the copper sheet feeding mechanism extends to push the blank 14 with the copper sheet installed on the copper sheet station to the second slide rail 4.

[0038] In this embodiment, the pushing mechanism includes a connecting plate 20, a drive box 21, a gear 22, and a rack 23. The entire pushing mechanism is located on the right side of the workbench 1. The connecting plate 20 is horizontally slidably engaged with the top of the workbench 1, and the rack 23 is located at the top of the connecting plate 20 and connected to the connecting plate 20.

[0039] The drive box 21 is located at the top of the workbench 1 and is connected to the workbench 1 by bolts. The drive box 21 is equipped with a motor (not shown in the figure). The gear 22 is connected to the output shaft of the motor. The gear 22 meshes with the rack 23. In this way, when the motor drives the gear 22 to rotate, the gear 22 and the rack 23 can mesh with each other and move, thereby causing the rack 23 to move horizontally. During the horizontal movement of the rack 23, the connecting plate 20 can be driven to slide horizontally along the workbench 1.

[0040] The left end of the connecting plate 20 is bolted to a first push plate 15 and a second push plate 16. The first push plate 15 and the second push plate 16 are located within the first slide rail 3 and the second slide rail 4, respectively. The length of the second push plate 16 is greater than the length of the first push plate 15. When the gear 22 and the rack 23 mesh, the first push plate 15 can push the cutting tool on the flux coating station to the copper foil station, and simultaneously, the second push plate 16 can push the copper foil-coated cutting tool blank 14 on the second slide rail 4 to the insert station. The lengths of the first push plate 15 and the second push plate 16 need to be set according to the positions of the copper foil station and the insert station, so that while the first push plate 15 pushes the cutting tool blank 14 to the copper foil station, the second push plate 16 can push the copper foil-coated cutting tool blank 14 to the insert station.

[0041] The discharge mechanism in this embodiment includes a clamping unit (not shown in the figure) and a discharge unit. The clamping unit clamps the blank 14 on the insert station to the discharge station. In this embodiment, the discharge station is located at the left end of the second slide 4. The discharge unit can push the blank 14 out of the discharge station. In this embodiment, the clamping unit includes a gripper. The gripper is controlled by a robotic arm to clamp the blank 14 on the insert station and move it to the discharge station for overlapping stacking.

[0042] The discharge unit in this embodiment includes a discharge cylinder 9 and two discharge pads 5 arranged in parallel to each other. The discharge pads 5 are perpendicular to the second slide rail 4. The discharge cylinder 9 is provided with a discharge push plate 18, which is located between the two discharge pads 5. The output shaft of the discharge cylinder 9 extends out to enable the discharge push plate 18 to push the blank 14 on the discharge station onto the discharge pads 5.

[0043] The specific implementation process is as follows: The blank 14 is stacked in the blank material box 11. The pusher plate 17 on the output shaft of the feed cylinder 7 pushes the blank 14 at the bottom of the blank material box 11 vertically into the first slide rail 3. After the nozzle applies flux along the length of the blank 14, the motor is started, and the gear 22 rotates, thereby driving the rack 23 to slide to the left. This drives the first pusher plate 15 on the connecting plate 20 to push the flux-coated blank 14 to the copper sheet at the next station.

[0044] The copper sheet in the copper sheet box 12 is pushed onto the flux-coated blank 14 by the pusher plate 17 on the output shaft of the copper sheet cylinder 8. Then, the output shaft on the copper sheet cylinder 8 extends forward to push the copper sheet-coated blank 14 onto the second slide rail 4. Then, the motor is started to make the gear 22 and the rack 23 mesh with each other, thereby driving the second pusher plate 16 on the connecting plate 20 to push the copper sheet-coated blank 14 to the next station for inserting. At the same time, the first pusher plate 15 pushes the flux-coated blank 14 at the flux-coating station to the copper sheet station for waiting.

[0045] Upon reaching the inserting station, the pusher plate 17 on the output shaft of the inserting cylinder 10 first pushes the insert onto the blank 14, which is coated with flux and fitted with copper foil, for installation.

[0046] Then, the grippers in the clamping unit drop down to pick up the blank 14 assembly and move it to the last discharge station for stacking. After stacking to a certain quantity, the output axis of the discharge cylinder 9 is pushed forward by one blank 14 position. This process is repeated to push the blank 14 forward, achieving automatic discharge and effectively reducing the operator's labor intensity.

[0047] Example 2

[0048] The difference between this embodiment and Embodiment 1 is that in this embodiment, a heating belt is wrapped around the outer periphery of the flux container 2, and a temperature controller is provided on the heating belt. The heating belt in this embodiment allows the flux inside the flux container 2 to maintain a constant temperature for a long time, preventing the flux from cooling and solidifying. This avoids the need to heat the flux in the flux container 2 before spraying flux onto the blank 14, which would affect processing efficiency. The temperature controller can adjust the heating temperature of the heating belt according to actual needs.

[0049] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A method for applying flux to a tool for brazing, characterized in that: This method utilizes a coating apparatus, which includes a worktable with a first and a second parallel slide rail. The first slide rail has a flux application station and a copper foil mounting station, while the second slide rail has a mounting station and a discharge station. The worktable also includes a feeding mechanism, a pushing mechanism, a discharge mechanism, and a flux spraying unit for applying flux to the die blank. The feeding mechanism sequentially pushes the die blank, copper foil, and mounting piece to the flux application station, copper foil station, and mounting piece station. The pushing mechanism sequentially transfers the die blank from the flux application station, copper foil station, and mounting piece station to the next station. The unloading mechanism can unload the blank with copper sheet and insert; the feeding mechanism can push the blank on the copper sheet station to the second slide rail; the pushing mechanism includes a connecting plate, a drive box, a gear and a rack, the connecting plate is horizontally slidably engaged with the top of the worktable, the drive box is equipped with a motor, the gear is connected to the output shaft of the motor, the gear meshes with the rack, one end of the connecting plate is connected to a first push plate and a second push plate, the first push plate and the second push plate are respectively located in the first slide rail and the second slide rail; the unloading mechanism includes an unloading unit, the clamping unit can clamp the blank on the insert station to the unloading station, and the unloading unit can push the blank on the unloading station out; The feeding mechanism includes a blank feeding mechanism, a copper sheet feeding mechanism, and an insert feeding mechanism. The blank feeding mechanism includes a blank material box for holding blanks and a feeding cylinder. A pusher plate is connected to the output shaft of the feeding cylinder, which can drive the pusher plate to send the blank to the flux coating station of the first slide for flux coating. The copper sheet feeding mechanism includes a copper sheet material box for holding copper sheets and a copper sheet cylinder. A pusher plate is connected to the output shaft of the copper sheet cylinder, which can drive the pusher plate to push the copper sheet to the copper sheet station for installation. The insert feeding mechanism includes an insert material box for holding inserts and an insert cylinder. A pusher plate is connected to the output shaft of the insert cylinder, which can drive the pusher plate to push the insert to the insert station for installation. The discharge unit includes a discharge cylinder and two discharge pads arranged in parallel to each other. The discharge pads are perpendicular to the second slide. The discharge cylinder is equipped with a discharge push plate. The output shaft of the discharge cylinder extends to enable the discharge push plate to push the blank on the discharge station onto the discharge pad. The spraying unit includes a flux tank, a connecting pipe, and a metering pump. The metering pump is connected to the flux tank and can meter the flux in the flux tank. The connecting pipe is connected to the flux tank and a spray nozzle is connected to the connecting pipe. The coating method includes the following steps: S1: Stack the blanks in the blank box. The feeding mechanism pushes the blank at the bottom of the blank box vertically into the first slide. After the nozzle applies flux along the length of the blank, start the motor to make the gear rotate and drive the rack to slide to the left. This drives the first push plate on the connecting plate to push the flux-coated blank to the next station. S2: Under the action of the feeding mechanism, the copper sheet is pushed onto the blank coated with flux, and the blank coated with copper sheet is pushed onto the second slide. Then the motor is started, and the meshing motion of the gear and rack can drive the second push plate to push the blank on the second slide to the insert station. At the same time, the first push plate pushes the blank coated with flux at the flux coating station to the copper sheet station for waiting. S3: After arriving at the inserting station, the insert is pushed onto the blank coated with flux and fitted with copper sheet by the feeding mechanism for installation; S4: The grippers in the gripping unit drop down to pick up the blank assembly and move it to the last discharge station for stacking. After stacking to a certain quantity, the blank is pushed forward by the discharge unit to one blank position. This process is repeated to push the blank forward and achieve automatic discharge.

2. The flux coating method for brazing cutting tools according to claim 1, characterized in that: The flux container has a detachable lid at the top.

3. The flux coating method for brazing cutting tools according to claim 1, characterized in that: The flux container is wrapped with a heating belt, and the heating belt is equipped with a temperature controller.

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