Local high-frequency induction quenching machine for outer tube of front fork of motorcycle

Abstract

The invention belongs to the technical field of high-frequency induction quenching machines, and discloses a local high-frequency induction quenching machine for a motorcycle front fork outer tube, the local high-frequency induction quenching machine comprises a quenching machine body and a rotary conveying turntable, the front side of the quenching machine body is provided with a high-frequency induction coil, and a spraying mechanism is arranged below the high-frequency induction coil; a water tank is fixedly mounted at the top of the quenching machine body, a supporting plate is fixedly mounted at the top of the water tank, a hidden cavity is formed in the supporting plate, a rotatable rotating seat is arranged in the hidden cavity, a first servo motor used for driving the rotating seat to rotate is fixedly mounted at the top of the supporting plate, and an electric air cylinder is fixedly mounted at the bottom of the rotating seat; a cross beam frame is fixedly installed at the telescopic end of the electric air cylinder. Through the overall design of three cross beams, lifting rotation and three-station synchronous linkage, seamless continuous circulation of feeding, quenching and discharging of the pipe fittings is achieved, the quenching machine is different from independent stations and step-by-step actions of conventional multi-station quenching equipment, and the quenching machine is higher in efficiency.

Description

Technical Field

[0001] This application relates to the field of high-frequency induction hardening machine technology, and more specifically, to a local high-frequency induction hardening machine for the outer tube of a motorcycle front fork. Background Technology

[0002] The motorcycle front fork outer tube is a core structural component of the motorcycle's front suspension system. It not only serves as the mounting base for the front wheel but is also a crucial component for load-bearing, guidance, and shock absorption, directly impacting handling, stability, and comfort. During the manufacturing process of the motorcycle front fork outer tube, the outer wall of the tube often needs to be hardened, typically using a high-frequency induction hardening machine.

[0003] However, some high-frequency induction hardening machines on the market have certain limitations. Specifically, they only use the independent stations and step-by-step actions of conventional multi-station hardening equipment, which is not efficient enough for quenching pipes and needs further improvement. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a localized high-frequency induction hardening machine for the outer tube of a motorcycle front fork.

[0005] The technical solution provided in this application for a local high-frequency induction hardening machine for motorcycle front fork outer tube is as follows:

[0006] A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork includes a hardening machine body and a rotary conveyor turntable. A high-frequency induction coil is arranged on the front side of the hardening machine body, and a spraying mechanism is arranged below the high-frequency induction coil. A water tank is fixedly installed on the top of the hardening machine body, and a support plate is fixedly installed on the top of the water tank. A hidden cavity is opened inside the support plate, and a rotatable rotating seat is arranged inside the hidden cavity. A first servo motor for driving the rotating seat to rotate is fixedly installed on the top of the support plate, and an electric cylinder is fixedly installed on the bottom of the rotating seat. A crossbeam is fixedly installed on the telescopic end of the electric cylinder.

[0007] The crossbeam frame includes a first crossbeam, a second crossbeam, and a third crossbeam. The first crossbeam, the second crossbeam, and the third crossbeam are evenly distributed around the piston rod of the electric cylinder, and a clamping mechanism is provided at the end of the first crossbeam, the second crossbeam, and the third crossbeam away from the electric cylinder.

[0008] One side of the top of the rotary conveyor turntable is left empty to receive quenched pipe fittings, while the other side holds pipe fittings to be quenched.

[0009] Furthermore, the clamping mechanism includes a support, a second servo motor, and a limiting rod. The support is fixed to the third crossbeam, and a limiting groove is formed at the bottom of the support. A threaded rod is rotatably connected between the inner walls of the two sides of the limiting groove. Limiting blocks are threaded onto both ends of the threaded rod. Limiting rods are fixedly welded to the bottom of the two limiting blocks. The output end of the second servo motor passes through the interior of the limiting groove and is fixedly connected to a first helical gear. A second helical gear is fixedly sleeved on the threaded rod at the position corresponding to the first helical gear, and the second helical gear meshes with the first helical gear.

[0010] Furthermore, the limiting rod is semi-cylindrical, and a set of anti-slip textures is provided along the arc surface of the limiting rod from top to bottom.

[0011] Furthermore, the threads at both ends of the threaded rod are in opposite directions, and the limiting block abuts against the inner wall of the limiting groove.

[0012] Furthermore, the rotating seat includes a circular seat body and a second gear. The circular seat body extends to the bottom of the tray and is rotatably connected to the tray. A positioning shaft is fixedly welded to the top of the circular seat body. The positioning shaft is rotatably connected to the tray. A first gear is fixedly sleeved on the positioning shaft. The first gear meshes with the second gear. The output end of the first servo motor extends into the interior of the hidden cavity and is fixed to the second gear.

[0013] Furthermore, the spraying mechanism includes a spray ring and a branch pipe. A set of nozzles is fixedly installed along the annular inner wall of the spray ring. The water inlet end of the branch pipe is connected to a water tank, and a solenoid valve is fixedly installed at the water inlet end of the branch pipe. Both water outlet ends of the branch pipe are connected to the spray ring.

[0014] Furthermore, the two ends of the high-frequency induction coil are respectively connected to two pins of the quenching machine body.

[0015] Furthermore, a base is fixedly installed at the bottom of the quenching machine body, a water collection tank is provided on the front side of the base, a water pump is fixedly installed on the base, the water inlet of the water pump extends into the water collection tank through a water pipe, and the water outlet of the water pump is connected to the water tank through a water pipe.

[0016] Furthermore, a level gauge is installed on the water tank to measure the amount of water stored inside the tank.

[0017] Furthermore, a set of positioning pins for erecting the pipe fittings is fixed on the top of the rotary conveyor turntable. The positioning pins are distributed in a ring at equal intervals, and the top of the positioning pins is conical.

[0018] In summary, this application includes at least one of the following beneficial technical effects: Through the overall design of three crossbeams, lifting and rotating, and three stations working synchronously, this application realizes a seamless and continuous cycle of pipe loading, quenching, and unloading. Unlike the independent stations and step-by-step actions of conventional multi-station quenching equipment, this quenching machine is more efficient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a local high-frequency induction hardening machine for the outer tube of a motorcycle front fork.

[0020] Figure 2 This is a structural schematic diagram of the crossbeam frame and clamping mechanism in this application;

[0021] Figure 3 This is a sectional view of the support in this application;

[0022] Figure 4 This is a schematic diagram of the internal structure of the hidden cavity in this application;

[0023] Figure 5 This is a schematic diagram of the spraying mechanism in this application;

[0024] Figure 6 This is a structural schematic diagram of the crossbeam frame in this application when the pipe fittings are quenched and loaded.

[0025] Figure 7 This is a structural schematic diagram of the crossbeam frame in this application during the quenching and blanking of pipe fittings.

[0026] Figure 8 This is a structural diagram of the crossbeam frame in this application during the pipe loading, pipe quenching, and pipe unloading processes.

[0027] Explanation of the labels in the diagram:

[0028] 1. Quenching machine body; 2. Water tank; 3. Spraying mechanism; 31. Spraying ring; 32. Nozzle; 33. Branch pipe; 34. Solenoid valve; 4. Support plate; 41. Hidden cavity; 5. Rotary seat; 51. Circular seat body; 52. First gear; 53. Second gear; 54. Positioning shaft; 6. Electric cylinder; 7. First servo motor; 8. Crossbeam frame; 81. First crossbeam; 82. Second crossbeam; 83. Third crossbeam; 9. Clamping mechanism; 91. Support; 92. Second servo motor; 93. Limiting rod; 94. Limiting groove; 95. Threaded rod; 96. Limiting block; 97. First helical gear; 98. Second helical gear; 10. Rotary conveyor turntable; 101. Positioning pin; 11. High-frequency induction coil; 12. Base; 13. Water collection tank; 14. Water pump; 15. Level gauge. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0033] This application discloses a local high-frequency induction hardening machine for motorcycle front fork outer tubes, including a hardening machine body 1 and a rotary conveyor turntable 10. It is understood that a bidirectional conveyor belt is provided next to the rotary conveyor turntable 10. Workers can place the tubes to be hardened, conveyed from the conveyor belt, onto the rotary conveyor turntable 10, and then place the hardened tubes on the rotary conveyor turntable 10 onto the conveyor belt for transport. Alternatively, a robotic arm can be used to replace manual handling of the tubes. Please refer to [link to relevant documentation]. Figure 1One side of the top of the rotary conveyor turntable 10 is left empty to receive quenched pipe fittings, while the other side holds pipe fittings to be quenched. To ensure the pipe fittings remain upright, a set of positioning pins 101 are fixed to the top of the rotary conveyor turntable 10 to hold the pipe fittings upright. The positioning pins 101 are evenly spaced in a ring, and the top of each positioning pin is conical. The conical top provides a guiding function, allowing workers to insert the pipe fittings conveyed from the conveyor belt into the positioning pins 101. It should be noted that a high-frequency induction coil 11 is installed on the front side of the quenching machine body 1. The two ends of the high-frequency induction coil 11 are connected to two pins of the quenching machine body 1, respectively. A spray mechanism 3 is installed below the high-frequency induction coil 11. When the pipe fitting moves down... During the process, after being heated by the high-frequency induction coil 11, the spraying mechanism 3 sprays the pipe fittings to cool them down in time. It should be further noted that a water tank 2 is fixedly installed on the top of the quenching machine body 1, and a support plate 4 is fixedly installed on the top of the water tank 2. A hidden cavity 41 is opened inside the support plate 4, and a rotatable rotating seat 5 is set inside the hidden cavity 41. A first servo motor 7 for driving the rotating seat 5 to rotate is fixedly installed on the top of the support plate 4, and an electric cylinder 6 is fixedly installed on the bottom of the rotating seat 5. A crossbeam frame 8 is fixedly installed on the telescopic end of the electric cylinder 6. The first servo motor 7 and the electric cylinder 6 are electrically connected to the control panel installed on the quenching machine body 1. By controlling the operation of the first servo motor 7, the rotating seat 5 and the electric cylinder 6 can be driven to rotate intermittently as a whole.More specifically, the crossbeam frame 8 includes an integrally formed first crossbeam 81, second crossbeam 82, and third crossbeam 83. The first crossbeam 81, second crossbeam 82, and third crossbeam 83 are evenly distributed around the piston rod of the electric cylinder 6. Each of the first crossbeam 81, second crossbeam 82, and third crossbeam 83 has a clamping mechanism 9 at its end furthest from the electric cylinder 6. Initially, the clamping mechanism 9 of the first crossbeam 81 is located directly above the pipe on the rotary conveyor turntable 10. At this time, the position of the first pipe is the loading point of the rotary conveyor turntable 10. The clamping mechanism 9 of the second crossbeam 82 is located directly above the high-frequency induction coil 11, and the clamping mechanism 9 of the third crossbeam 83 is located directly above the unloading point of the rotary conveyor turntable 10. When the quenching machine is running, the piston rod of the electric cylinder 6 extends, causing the crossbeam frame 8 to move downwards. The clamping mechanism 9 of the first crossbeam 81 then moves the pipe located at the loading point downwards. After clamping, the piston rod of the electric cylinder 6 retracts, causing the crossbeam frame 8 to move upward. Then, the first servo motor 7 drives the rotating seat 5, the electric cylinder 6, and the crossbeam frame 8 to rotate as a whole, thereby rotating the clamping mechanism 9 of the first crossbeam 81 to directly above the high-frequency induction coil 11, that is, to the quenching point. At this time, the clamping mechanism 9 of the second crossbeam 82 rotates to directly above the unloading point, and the clamping mechanism 9 of the third crossbeam 83 rotates to directly above the loading point. As the piston rod of the electric cylinder 6 extends again, the high-frequency induction coil 11 is energized and works. The clamping mechanism 9 of the first crossbeam 81 gradually extends the clamped pipe into the high-frequency induction coil 11 for surface heating. The spraying mechanism 3 sprays the pipe passing through for quenching. When the pipe is quenched, the clamping mechanism 9 of the third crossbeam 83 simultaneously clamps the pipe at the loading point. Then, the piston rod of the electric cylinder 6 retracts again, causing the crossbeam frame 8 to move upward (e.g.). Figure 6 (As shown), then the first servo motor 7 drives the rotary seat 5, electric cylinder 6, and crossbeam frame 8 to rotate as a whole. At this time, the clamping mechanism 9 of the first crossbeam 81 rotates the quenched pipe to directly above the unloading point, the clamping mechanism 9 of the third crossbeam 83 rotates the newly clamped pipe to directly above the high-frequency induction coil 11, and the clamping mechanism 9 of the second crossbeam 82 rotates to directly above the loading point (as shown). Figure 7 As shown), as the piston rod of the electric cylinder 6 extends again, the clamping mechanism 9 of the third crossbeam 83 moves the newly clamped pipe down for quenching, the clamping mechanism 9 of the second crossbeam 82 clamps the pipe at the loading point, and the clamping mechanism 9 of the first crossbeam 81 releases the quenched pipe to the unloading point (as shown). Figure 8As shown in the figure, the same principle applies to subsequent processes. Each time a pipe is quenched, the quenched pipe can be unloaded simultaneously, and a new pipe can be loaded simultaneously. In short, the overall design of three crossbeams, lifting and rotating, and three stations working in sync achieves a seamless and continuous cycle of pipe loading, quenching, and unloading. Unlike the independent stations and step-by-step actions of conventional multi-station quenching equipment, this quenching machine is more efficient.

[0034] Please see Figure 2 The clamping mechanism 9 includes a support 91 and a second servo motor 92. The support 91 is fixed to the third crossbeam 83, and in combination with... Figure 3 As shown, a limiting groove 94 is formed at the bottom of the support 91. A threaded rod 95 is rotatably connected between the inner walls of the two sides of the limiting groove 94. The threads at both ends of the threaded rod 95 have opposite helical directions, and both ends of the threaded rod 95 are threaded with limiting blocks 96. The limiting blocks 96 abut against the inner wall of the limiting groove 94. When the threaded rod 95 rotates, the limiting blocks 96 can only move horizontally along the limiting groove 94. Limiting rods 93 are fixedly welded to the bottom of both limiting blocks 96. When working, the two limiting rods 93 extend into the inside of the pipe fitting. When the two limiting rods 93 move away from each other along with the corresponding limiting blocks 96, they press against the inner wall of the pipe fitting, thereby completing the clamping and fixing of the pipe fitting. Similarly, when the two limiting rods 93 move towards each other, the fixing of the pipe is released. It should be noted that the output end of the second servo motor 92 passes through the inside of the limiting groove 94 and is fixedly connected to the first helical gear 97. The threaded rod 95 is fixedly sleeved with the second helical gear 98 at the position corresponding to the first helical gear 97. The second helical gear 98 meshes with the first helical gear 97. By controlling the operation of the second servo motor 92, the pipe can be clamped and released. It can be understood that in order to improve the clamping effect of the limiting rod 93 on the pipe, the limiting rod 93 is semi-cylindrical, and a set of anti-slip textures is set along the arc surface of the limiting rod 93 from top to bottom.

[0035] Please see Figure 4 The rotating seat 5 includes a circular seat 51 and a second gear 53. The circular seat 51 extends to the bottom of the support plate 4 and is rotatably connected to the support plate 4. The electric cylinder 6 is fixedly installed at the bottom of the circular seat 51. A positioning shaft 54 ​​is fixedly welded to the top of the circular seat 51. The positioning shaft 54 ​​is rotatably connected to the support plate 4 to enhance the stability of the rotating seat 5. A first gear 52 is fixedly sleeved on the positioning shaft 54. The first gear 52 meshes with the second gear 53. The output end of the first servo motor 7 extends into the interior of the hidden cavity 41 and is fixed to the second gear 53. By controlling the operation of the first servo motor 7, the second gear 53 can be driven to rotate, thereby driving the first gear 52, the positioning shaft 54 ​​and the circular seat 51 to rotate as a whole, thereby achieving the purpose of driving the electric cylinder 6 to rotate.

[0036] Please see Figure 1 and Figure 5 The spray mechanism 3 includes a spray ring 31 and a branch pipe 33. A set of nozzles 32 are fixedly installed along the annular inner wall of the spray ring 31. The water inlet end of the branch pipe 33 is connected to the water tank 2, and a solenoid valve 34 is fixedly installed at the water inlet end of the branch pipe 33. Both water outlet ends of the branch pipe 33 are connected to the spray ring 31. It can be understood that the solenoid valve 34 is electrically connected to the control panel, and the spray mechanism 3 can be opened and closed by controlling the operation of the solenoid valve 34. It should be noted that a base 12 is fixedly installed at the bottom of the quenching machine body 1. A water collection tank 13 is provided on the front side for collecting water during the spraying process. A water pump 14 is fixedly installed on the base 12. The water inlet of the water pump 14 extends into the water collection tank 13 through a water pipe, and the water outlet of the water pump 14 is connected to the water tank 2 through a water pipe. The water collected in the water collection tank 13 can be transported to the water tank 2 for recycling using the water pump 14. It should be further noted that a level gauge 15 for measuring the water storage in the tank is installed on the water tank 2, and a water inlet and a water outlet are also installed on the back of the water tank 2 for adding and draining water.

[0037] The implementation principle of a local high-frequency induction hardening machine for motorcycle front fork outer tubes in this application embodiment is as follows: During the operation, the rotary conveyor turntable 10 rotates intermittently to rotate the tubes one by one to the loading point. During this process, the first servo motor 7 drives the rotating seat 5, the electric cylinder 6 and the crossbeam frame 8 to rotate as a whole, so that the clamping mechanisms 9 of the first crossbeam 81, the second crossbeam 82 and the third crossbeam 83 correspond to the loading point, the hardening point and the unloading point in sequence. With the extension and retraction of the electric cylinder 6, a seamless and continuous cycle of loading, hardening and unloading of the tubes can be achieved.

[0038] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A local high-frequency induction hardening machine for motorcycle front fork outer tubes, comprising a hardening machine body (1) and a rotary conveyor turntable (10), characterized in that: A high-frequency induction coil (11) is provided on the front side of the quenching machine body (1), and a spraying mechanism (3) is provided below the high-frequency induction coil (11). A water tank (2) is fixedly installed on the top of the quenching machine body (1), and a support plate (4) is fixedly installed on the top of the water tank (2). A hidden cavity (41) is opened inside the support plate (4), and a rotatable rotating seat (5) is provided inside the hidden cavity (41). A first servo motor (7) for driving the rotating seat (5) to rotate is fixedly installed on the top of the support plate (4), and an electric cylinder (6) is fixedly installed on the bottom of the rotating seat (5). A crossbeam frame (8) is fixedly installed on the telescopic end of the electric cylinder (6). The crossbeam frame (8) includes a first crossbeam (81), a second crossbeam (82) and a third crossbeam (83). The first crossbeam (81), the second crossbeam (82) and the third crossbeam (83) are evenly distributed with the piston rod of the electric cylinder (6) as the center. A clamping mechanism (9) is provided at the end of the first crossbeam (81), the second crossbeam (82) and the third crossbeam (83) away from the electric cylinder (6). One side of the top of the rotary conveyor turntable (10) is left empty to receive the quenched pipe fittings, while the other side is used to place the pipe fittings to be quenched.

2. The local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The clamping mechanism (9) includes a support (91), a second servo motor (92), and a limiting rod (93). The support (91) is fixed to the third crossbeam (83), and a limiting groove (94) is opened at the bottom of the support (91). A threaded rod (95) is rotatably connected between the inner walls of the two sides of the limiting groove (94). Both ends of the threaded rod (95) are threaded with limiting blocks (96). The bottoms of the two limiting blocks (96) are fixedly welded with limiting rods (93). The output end of the second servo motor (92) passes through the inside of the limiting groove (94) and is fixedly connected with a first helical gear (97). The threaded rod (95) is fixedly sleeved with a second helical gear (98) at the position corresponding to the first helical gear (97). The second helical gear (98) meshes with the first helical gear (97).

3. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 2, characterized in that: The limiting rod (93) is semi-cylindrical, and a set of anti-slip textures are provided along the arc surface of the limiting rod (93) from top to bottom.

4. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 2, characterized in that: The threads at both ends of the threaded rod (95) are in opposite directions, and the limiting block (96) abuts against the inner wall of the limiting groove (94).

5. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The rotating seat (5) includes a circular seat (51) and a second gear (53). The circular seat (51) extends to the bottom of the support plate (4) and is rotatably connected to the support plate (4). A positioning shaft (54) is fixedly welded to the top of the circular seat (51). The positioning shaft (54) is rotatably connected to the support plate (4). A first gear (52) is fixedly sleeved on the positioning shaft (54). The first gear (52) meshes with the second gear (53). The output end of the first servo motor (7) extends into the interior of the hidden cavity (41) and is fixed to the second gear (53).

6. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The spraying mechanism (3) includes a spray ring (31) and a branch pipe (33). A set of nozzles (32) are fixedly installed along the annular inner wall of the spray ring (31). The water inlet end of the branch pipe (33) is connected to the water tank (2), and a solenoid valve (34) is fixedly installed at the water inlet end of the branch pipe (33). Both water outlet ends of the branch pipe (33) are connected to the spray ring (31).

7. A local high-frequency induction hardening machine for motorcycle front fork outer tube according to claim 1, characterized in that: The two ends of the high-frequency induction coil (11) are respectively connected to the two pins of the quenching machine body (1).

8. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The bottom of the quenching machine body (1) is fixedly installed with a base (12), and a water collection tank (13) is provided on the front side of the base (12). A water pump (14) is fixedly installed on the base (12). The water inlet of the water pump (14) extends into the water collection tank (13) through a water pipe, and the water outlet of the water pump (14) is connected to the water tank (2) through a water pipe.

9. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The water tank (2) is equipped with a level gauge (15) for measuring the amount of water stored inside the tank.

10. A local high-frequency induction hardening machine for the outer tube of a motorcycle front fork according to claim 1, characterized in that: The top of the rotary conveyor turntable (10) is fixed with a set of positioning pins (101) for erecting the pipe fittings. The positioning pins (101) are distributed in a ring with equal spacing, and the top of the positioning pins (101) is conical.

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