A quenching apparatus for surface composite strengthening of a tool

Abstract

The utility model discloses a quenching equipment for cutter surface composite reinforcement, including the workbench, the upper surface left and right sides of workbench are equipped with high frequency induction coil and cooling nozzle, still include cleaning mechanism, cleaning mechanism: it includes pivot, cleaning roller, gear, double sided rack, limit bulge, limit groove and drive assembly, the upper surface left end of workbench both sides all rotatoryly connected with cleaning roller through pivot, the outer surface lower extreme of pivot all fixedly equipped with gear, the inside of workbench is equipped with adjustable double sided rack through drive assembly, and the toothed portion of double sided rack both sides all is engageded with the gear of adjacent meshing connection, this quenching equipment for cutter surface composite reinforcement, through the cleaning mechanism, the impurity on the blade is cleaned down, makes the blade mouth in the process of quenching can be more uniform with high frequency induction coil coupling, improves the stability of high frequency induction heating, avoids the influence cutter's quenching quality.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool processing technology, specifically to a quenching device for composite surface strengthening of cutting tools. Background Technology

[0002] In the process of machining cutting tools (such as scrapers, utility knives, and utility blades), in order to improve the hardness and wear resistance of the cutting tools (composite strengthening of the tool surface), the cutting tools are usually quenched. Quenching is a crucial process in metal heat treatment. By heating the metal material and then rapidly cooling it, the internal structure of the material can be significantly changed, thereby giving it excellent properties. Quenching requires the use of quenching equipment.

[0003] Existing quenching equipment typically uses high-frequency induction quenching. During operation, the cutting edge of the blade is heated by a high-frequency induction coil, and then coolant is sprayed towards the cutting edge to rapidly cool it down, thus completing the quenching process.

[0004] Existing quenching equipment has the following problems: during the early processing of the cutting tool, impurities may be attached to the outer surface. If the cutting tool is directly passed through the high-frequency induction coil for heating, these impurities will cause the cutting edge of the cutting tool to not be well coupled with the high-frequency induction coil during the quenching process, resulting in poor stability of high-frequency induction heating and affecting the quenching quality of the tool. Manual cleaning of the cutting tool will reduce the production efficiency of the tool. Therefore, we propose a quenching equipment for composite strengthening of tool surface. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a quenching device for composite strengthening of the tool surface. The device cleans the impurities on the tool bar through a cleaning mechanism, eliminating the need for manual cleaning. This allows the cutting edge of the tool bar to couple more evenly with the high-frequency induction coil during the quenching process, improving the stability of high-frequency induction heating and avoiding affecting the quenching quality of the tool. This can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quenching device for composite strengthening of tool surface, including a processing table, high-frequency induction coils and cooling nozzles respectively provided on the left and right sides of the upper surface of the processing table, and a cleaning mechanism;

[0007] The cleaning mechanism includes a rotating shaft, cleaning rollers, gears, a double-sided rack, limiting protrusions, limiting grooves, and a drive assembly. Cleaning rollers are rotatably connected to the front and rear sides of the left end of the upper surface of the processing table via rotating shafts. Gears are fixedly sleeved on the lower end of the outer surface of the rotating shafts. An adjustable double-sided rack is provided inside the processing table via the drive assembly. The toothed portions on both the front and rear sides of the double-sided rack mesh with adjacent gears. A limiting protrusion is provided on the upper surface of the double-sided rack. A limiting groove is formed in the top wall of the processing table, and the limiting protrusion is slidably connected inside the limiting groove. The cleaning mechanism removes impurities from the cutting blade, allowing the cutting edge to couple more evenly with the high-frequency induction coil during quenching, improving the stability of high-frequency induction heating and preventing any impact on the quenching quality of the cutting tool.

[0008] Furthermore, it also includes a microcontroller, which is located on the right side of the upper surface of the processing table. The input terminal of the microcontroller is electrically connected to an external power supply, and the input terminal of the high-frequency induction coil is electrically connected to the output terminal of the microcontroller, which facilitates the normal operation of the equipment.

[0009] Furthermore, the drive assembly includes a rotating shaft, a connecting rod, a drive rod, and a fixed seat. The top wall inside the processing table is provided with a fixed frame. The upper surface of the fixed frame is rotatably connected to the connecting rod via the rotating shaft. The upper surface of the connecting rod away from the rotating shaft is rotatably connected to the drive rod via a pin. The right end of the double-sided rack is provided with a fixed seat. The end of the drive rod away from the pin is rotatably connected to the inside of the fixed seat, which facilitates driving the cleaning roller to rotate.

[0010] Furthermore, a motor is provided on the lower surface of the fixed frame. The upper end of the output shaft of the motor is fixedly connected to the lower end of the rotating shaft. The input end of the motor is electrically connected to the output end of the microcontroller, which facilitates driving the rotating shaft to rotate.

[0011] Furthermore, a water tank is provided on the upper surface of the processing table, and support frames are provided on both the left and right sides of the water tank. A conveying pipe is provided between the two support frames, and cooling nozzles are evenly distributed on the lower side of the outer surface of the conveying pipe to facilitate spraying coolant onto the cutting edge of the blade.

[0012] Furthermore, a slot is provided at the right end of the upper surface of the processing table, and a bracket is slidably connected inside the slot. Both the right end of the upper surface of the processing table and the inside of the bracket are rotatably connected to conveying rollers via rotating rods, which facilitates the transport of the cutting blade.

[0013] Furthermore, the processing table is equipped with a second motor. The upper end of the output shaft of the second motor is fixedly connected to the lower end of the front rotating rod. The input end of the second motor is electrically connected to the output end of the microcontroller to provide driving force.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This quenching equipment for composite surface strengthening of cutting tools has the following advantages:

[0015] The rotating shaft, connecting rod, drive rod, and fixed seat constitute a crank-connecting rod mechanism, which converts the continuous rotational motion of the rotating shaft into the periodic reciprocating motion of the double-sided rack. The gear and rotating shaft drive the cleaning roller to rotate periodically back and forth. The cleaning roller alternates between forward and reverse rotation, improving the peeling effect and reducing cleaning dead angles. Impurities on the blade are cleaned before the blade passes through the high-frequency induction heating without manual intervention. This allows the blade edge to couple more evenly with the high-frequency induction coil during the quenching process, improving the stability of the high-frequency induction heating and avoiding affecting the quenching quality of the blade. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of section B of this utility model.

[0020] In the diagram: 1. Processing table, 2. Microcontroller, 3. Cleaning mechanism, 31. Rotating shaft, 32. Cleaning roller, 33. Gear, 34. Double-sided rack, 35. Limiting protrusion, 36. Limiting groove, 37. Drive assembly, 371. Rotating shaft, 372. Connecting rod, 373. Drive rod, 374. Fixing seat, 4. Motor 1, 5. High-frequency induction coil, 6. Support frame, 7. Conveying pipe, 8. Cooling nozzle, 9. Water tank, 10. Conveying roller, 11. Groove opening, 12. Bracket, 13. Motor 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4This embodiment provides a technical solution: a quenching device for composite strengthening of tool surfaces, including a processing table 1. High-frequency induction coils 5 and cooling nozzles 8 are respectively provided on the left and right sides of the upper surface of the processing table 1. (High-frequency induction coils are usually made of copper, because copper has good conductivity and fast heat dissipation, can efficiently transmit high-frequency current, and is often machined into a ring shape.) It also includes a cleaning mechanism 3 and a microcontroller 2, which is located on the right side of the upper surface of the processing table 1. The input terminal of the microcontroller 2 is electrically connected to an external power supply, and the input terminal of the high-frequency induction coil 5 is electrically connected to the output terminal of the microcontroller 2. A water tank 9 is provided on the upper surface of the processing table 1 (the drain outlet is located on the lower surface of the water tank 9). A drainage pipe is provided, with a valve connected in series in the middle of the outer surface of the drainage pipe. Support frames 6 are provided on both sides of the water tank 9, and a conveying pipe 7 is provided between the two support frames 6. Cooling nozzles 8 are evenly distributed on the lower side of the outer surface of the conveying pipe 7. A slot 11 is provided at the right end of the upper surface of the processing table 1. A bracket 12 is slidably connected inside the slot 11. (A fixing bolt is threaded into the threaded hole on the rear side of the upper surface of the bracket 12, and the lower end of the fixing bolt contacts the bottom wall of the slot 11. The bracket 12 is fixed inside the slot 11 by tightening the fixing bolt.) Conveying rollers 1 are rotatably connected to the right end of the upper surface of the processing table 1 and the inside of the bracket 12 via rotating rods. 0. Inside the processing table 1, there is a second motor 13. The upper end of the output shaft of the second motor 13 is fixedly connected to the lower end of the front rotating rod. The input end of the second motor 13 is electrically connected to the output end of the microcontroller 2. The liquid inlet of the conveying pipe 7 is connected to an external pump through a water supply pipe. The blade is passed from left to right between the two cleaning rollers 32, between the high-frequency induction coils 5, and between the two conveying rollers 10. The fixing bolts are loosened, and the bracket 12 is moved forward along the groove 11 until the outer surfaces of the conveying rollers 10 on both sides are in contact with the blade. Then the fixing bolts are tightened. Through the control of the microcontroller 2, the second motor 13 and the high-frequency induction coils 5 work. The operation of the second motor 13 drives the... The rotating conveyor roller 10 transports the blade from left to right through friction. The high-frequency induction coil 5 is in close contact with the cutting edge area of ​​the blade to perform high-frequency induction heating (the principle is to use an alternating magnetic field to induce eddy currents on the surface of the workpiece to generate heat). After the high-frequency induction coil 5 is energized, the cutting edge of the blade heats up rapidly due to the concentration of eddy currents (skin effect). The blade edge, which has increased in temperature, continues to move to the right. An external pump pumps coolant into the conveying pipe 7, which is sprayed onto the cutting edge of the blade through the cooling nozzle 8 to rapidly cool the cutting edge and complete the quenching process. The used coolant flows into the water tank 9. When a certain amount of coolant has accumulated in the water tank 9, the valve is opened to discharge the coolant from the water tank 9.

[0023] Cleaning mechanism 3 includes a rotating shaft 31, a cleaning roller 32, a gear 33, a double-sided rack 34, a limiting protrusion 35, a limiting groove 36, and a drive assembly 37. The front and rear sides of the left end of the upper surface of the processing table 1 are rotatably connected to the cleaning roller 32 via the rotating shaft 31. (The cleaning roller 32 is a brush cleaning roller. The connection between the rotating shaft 31 and the cleaning roller 32 is a commonly used replaceable roller design in the prior art. The cleaning roller 32 and the rotating shaft 31 are detachable. The cleaning roller 32 can be connected to the rotating shaft 31 via a spiral interface. The outer surface of the rotating shaft 31 has an external thread, and the inner wall of the cleaning roller 32 has an internal thread. The external thread and the internal thread are threaded together. When replacing the cleaning roller 32, only the...) (To remove the old roller, simply rotate it in the direction of the thread to disengage the thread.) For replacement, only the old cleaning roller 32 needs to be removed, while the rotating shaft 31 can be reused. Gears 33 are fixedly fitted onto the lower end of the outer surface of the rotating shaft 31. An adjustable double-sided rack 34 is provided inside the processing table 1 via a drive assembly 37. The toothed portions on both sides of the double-sided rack 34 mesh with adjacent gears 33. A limiting protrusion 35 is provided on the upper surface of the double-sided rack 34. A limiting groove 36 is formed in the top wall of the processing table 1, and the limiting protrusion 35 is slidably connected inside the limiting groove 36. The drive assembly 37 includes a rotating shaft 371, a connecting rod 372, a drive rod 373, and a fixed seat 374. The upper wall of the workbench 1 is equipped with a fixed frame. The upper surface of the fixed frame is rotatably connected to a connecting rod 372 via a rotating shaft 371. The upper surface of the connecting rod 372, away from the rotating shaft 371, is rotatably connected to a drive rod 373 via a pin. The right end of the double-sided rack 34 is equipped with a fixed seat 374. The end of the drive rod 373 away from the pin is rotatably connected to the inside of the fixed seat 374. The lower surface of the fixed frame is equipped with a motor 4. The upper end of the output shaft of the motor 4 is fixedly connected to the lower end of the rotating shaft 371. The input end of the motor 4 is electrically connected to the output end of the microcontroller 2. Before the blade is subjected to high-frequency induction heating by the high-frequency induction coil 5, the motor 4 operates through the rotating shaft 371 under the control of the microcontroller 2. 71 drives the connecting rod 372 to rotate. Under the restriction of the limiting protrusion 35 and the limiting groove 36, the rotation of the connecting rod 372 causes one end of the drive rod 373 near the connecting rod 372 to make a circular motion with the connecting rod 372, while the other end drives the double-sided rack 34 to move back and forth through the fixed seat 374. The reciprocating motion of the double-sided rack 34 drives the rotating shaft 31 to rotate through the meshing gear 33, causing the cleaning roller 32 to rotate periodically. The cleaning roller 32 alternates between forward and reverse rotation. Through the action of "reciprocating friction" and "reverse peeling", the force on the impurities is enhanced, and the peeling effect is improved. The alternation of forward and reverse rotation allows the cleaning roller 32 to contact the recessed area from different angles, reducing cleaning dead angles.

[0024] The working principle of the quenching equipment for composite strengthening of the tool surface provided by this utility model is as follows: The inlet end of the conveying pipe 7 is connected to an external pump through a water supply pipe. The tool bar is passed from left to right between two cleaning rollers 32, between high-frequency induction coils 5, and between two conveying rollers 10. The fixing bolts are loosened, and the support 12 is moved forward along the groove 11 until the outer surfaces of the conveying rollers 10 on both sides are in contact with the tool bar. Then the fixing bolts are tightened. Under the control of the single-chip microcomputer 2, the motor 13 and the high-frequency induction coil 5 work. The motor 13 drives the conveying rollers 10 to rotate and transport the tool bar from left to right through friction. The high-frequency induction coil 5 is in close contact with the cutting edge area of ​​the tool bar for high-frequency induction heating (the principle is to use an alternating magnetic field to induce eddy currents and generate heat on the surface of the workpiece). After the high-frequency induction coil 5 is energized, the cutting edge of the tool bar heats up rapidly due to the concentration of eddy currents (skin effect). The heated cutting edge of the tool bar continues to move to the right. The external pump pumps coolant into the conveying pipe 7 and sprays it onto the cutting edge of the tool bar through the cooling nozzles 8. The cutting edge of the blade is rapidly cooled to complete the quenching process. The used coolant flows into the water tank 9. When a certain amount of coolant accumulates in the water tank 9, the valve is opened to drain the coolant from the water tank 9. Before the blade undergoes high-frequency induction heating through the high-frequency induction coil 5, the motor 4, controlled by the microcontroller 2, drives the connecting rod 372 to rotate via the rotating shaft 371. Under the constraint of the limiting protrusion 35 and the limiting groove 36, the rotation of the connecting rod 372 drives the drive rod 373 to rotate at one end near the connecting rod 372. The connecting rod 372 makes a circular motion, and the other end drives the double-sided rack 34 to move back and forth through the fixed seat 374. The reciprocating motion of the double-sided rack 34 drives the rotating shaft 31 to rotate through the meshing gear 33, causing the cleaning roller 32 to rotate periodically. The cleaning roller 32 alternates between forward and reverse rotation. Through the action of "reciprocating friction" and "reverse peeling", the force on the impurities is enhanced and the peeling effect is improved. The alternation of forward and reverse rotation allows the cleaning roller 32 to contact the depression from different angles, reducing cleaning dead corners.

[0025] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be an STM32 series, and the motor 4 and motor 13 can be Y2-315L1-4. The microcontroller 2 controls the operation of motor 4, high-frequency induction coil 5 and motor 13 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quenching device for composite strengthening of tool surface, comprising a processing table (1), wherein a high-frequency induction coil (5) and a cooling nozzle (8) are respectively provided on the left and right sides of the upper surface of the processing table (1), characterized in that: It also includes cleaning agencies (3); Cleaning mechanism (3): It includes a rotating shaft (31), a cleaning roller (32), a gear (33), a double-sided rack (34), a limiting protrusion (35), a limiting groove (36), and a drive assembly (37). The front and rear sides of the left end of the upper surface of the processing table (1) are rotatably connected to the cleaning roller (32) through the rotating shaft (31). The lower end of the outer surface of the rotating shaft (31) is fixedly fitted with a gear (33). The interior of the processing table (1) is provided with an adjustable double-sided rack (34) through the drive assembly (37). The toothed parts on the front and rear sides of the double-sided rack (34) are meshed with the adjacent gear (33). The upper surface of the double-sided rack (34) is provided with a limiting protrusion (35). The top wall inside the processing table (1) is provided with a limiting groove (36). The limiting protrusion (35) is slidably connected to the interior of the limiting groove (36).

2. The quenching equipment for composite surface strengthening of cutting tools according to claim 1, characterized in that: It also includes a microcontroller (2), which is located on the right side of the upper surface of the processing table (1). The input end of the microcontroller (2) is electrically connected to an external power supply, and the input end of the high-frequency induction coil (5) is electrically connected to the output end of the microcontroller (2).

3. The quenching equipment for composite surface strengthening of cutting tools according to claim 2, characterized in that: The drive assembly (37) includes a rotating shaft (371), a connecting rod (372), a drive rod (373), and a fixed seat (374). The top wall inside the processing table (1) is provided with a fixed frame. The upper surface of the fixed frame is rotatably connected to the connecting rod (372) via the rotating shaft (371). The upper surface of the connecting rod (372) away from the rotating shaft (371) is rotatably connected to the drive rod (373) via a pin. The right end of the double-sided rack (34) is provided with a fixed seat (374). The end of the drive rod (373) away from the pin is rotatably connected to the inside of the fixed seat (374).

4. The quenching equipment for composite surface strengthening of cutting tools according to claim 3, characterized in that: The lower surface of the fixed frame is provided with a motor (4), the upper end of the output shaft of the motor (4) is fixedly connected to the lower end of the rotating shaft (371), and the input end of the motor (4) is electrically connected to the output end of the microcontroller (2).

5. The quenching equipment for composite surface strengthening of cutting tools according to claim 1, characterized in that: The upper surface of the processing table (1) is provided with a water tank (9), and support frames (6) are provided on both the left and right sides of the water tank (9). A conveying pipe (7) is provided between the two support frames (6), and cooling nozzles (8) are evenly distributed on the lower side of the outer surface of the conveying pipe (7).

6. The quenching equipment for composite surface strengthening of cutting tools according to claim 2, characterized in that: The upper surface of the processing table (1) has a slot (11) at the right end, and a bracket (12) is slidably connected inside the slot (11). The upper surface of the processing table (1) and the inside of the bracket (12) are both rotatably connected to a conveying roller (10) via a rotating rod.

7. The quenching equipment for composite surface strengthening of cutting tools according to claim 6, characterized in that: The processing table (1) is equipped with a second motor (13). The upper end of the output shaft of the second motor (13) is fixedly connected to the lower end of the rotating rod on the front side. The input end of the second motor (13) is electrically connected to the output end of the microcontroller (2).

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