Material pulling mechanism of quenching furnace

Abstract

The utility model discloses a material pulling mechanism of a quenching furnace, and belongs to the field of vehicle part manufacturing equipment. According to the technical scheme, the material pulling mechanism of the quenching furnace comprises a fixed rack, a first-stage pulley is arranged on the fixed rack, and a first-stage telescopic driving device is arranged between the fixed rack and the first-stage pulley; a second-stage pulley is arranged on the first-stage pulley, and a second-stage telescopic driving device is arranged between the first-stage pulley and the second-stage pulley; the extending direction of the first-stage pulley relative to the fixed rack is the same as the extending direction of the second-stage pulley relative to the first-stage pulley, and a pull claw assembly is arranged at the extending end of the second-stage pulley. According to the scheme, the second-stage stretching mechanism is arranged, the first-stage tackle and the second-stage tackle stretch out step by step, the front-end pulling claw assembly can cross over the quenching pool to enter the quenching furnace to grab a material frame or a workpiece and then retreat to the position above the quenching pool, large-span automatic workpiece taking in the quenching process is achieved, the automation degree of forge piece production is improved, and the production efficiency is improved. And the labor intensity and the safety risk of workers are reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicle component manufacturing equipment, in particular to a material pulling mechanism of a quenching furnace. Background Art

[0002] Forgings are an important category of vehicle components because their manufacturing process is relatively complex and the workpiece performance is better. For example, forged wheels have higher strength and lighter weight than cast wheels of the same shape. Therefore, forged parts are usually used as optional accessories in higher-end models.

[0003] During the production process, forgings need to be quenched after the blank is forged. In the production enterprise, the quenching process is heated by a quenching furnace and then placed in a quenching pool for rapid cooling.

[0004] When heat treating forgings, after the forgings are heated in a high-temperature furnace, they need to be pulled out of the high-temperature furnace for subsequent quenching. Since the workpieces are hot forgings and the temperature is very high, the workers have a lot of labor intensity when using pliers to take and place the forgings. In addition, the working environment is a high-temperature environment and the working conditions are relatively poor. It is also easy for workers to get burned when pulling forgings, which poses a safety hazard. Especially when the forgings are contained in a material frame, the material frame is large in size and weight, and it is very inconvenient to pull or hoist them manually. At the same time, due to the existence of the quenching pool in front of the furnace, the puller cannot directly enter the furnace to pull the forgings. Summary of the invention

[0005] The utility model aims at the problem that it is inconvenient to pull a workpiece out of a high-temperature furnace in the current forging quenching process, and provides a quenching furnace material pulling mechanism.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a quenching furnace material pulling mechanism, including a fixed frame, a first-level pulley is provided on the fixed frame, and a first-level telescopic driving device is provided between the fixed frame and the first-level pulley; a second-level pulley is provided on the first-level pulley, and a second-level telescopic driving device is provided between the first-level pulley and the second-level pulley; the extension direction of the first-level pulley relative to the fixed frame is the same as the extension direction of the second-level pulley relative to the first-level pulley, and a claw assembly is provided at the extended end of the second-level pulley. This solution sets up a secondary extension mechanism, and the first-level pulley and the second-level pulley are extended step by step, so that the front-end claw assembly can cross the quenching pool and enter the quenching furnace to grab the material frame or workpiece, and then retreat to the top of the quenching pool. This solution realizes large-span automatic part removal in the quenching process, improves the degree of automation of forging production, and reduces the labor intensity and safety risks of the staff.

[0007] Preferably, the first-stage telescopic drive device includes a driving sprocket and a driven sprocket installed on a fixed frame, a chain is installed around the driving sprocket and the driven sprocket, the first-stage pulley is fixedly connected to the chain links in the chain, and the driving sprocket is connected to a driving motor.

[0008] Preferably, the secondary telescopic drive device comprises a telescopic cylinder, the cylinder body of the telescopic cylinder is fixedly mounted above the secondary pulley, a connecting seat is provided at the top of the rear end of the primary pulley, and the cylinder rod of the telescopic cylinder is connected to the connecting seat. The travel of the telescopic drive device is set within the length width of the primary pulley and the secondary pulley, which reduces the overall length of the material pulling mechanism and facilitates the spatial layout of the workshop equipment.

[0009] Preferably, the fixed frame includes two fixed longitudinal beams arranged in parallel, and a plurality of primary traveling wheels are respectively installed on both sides of the primary pulley, and the two fixed longitudinal beams respectively support the primary traveling wheels on the corresponding sides.

[0010] Preferably, the primary pulley comprises two primary longitudinal beams, the bottom of each primary longitudinal beam is provided with a plurality of legs, and the primary travel wheel is mounted on the lower end of the legs. The primary pulley adopts a leg structure to increase the height of the claw assembly so that it can adapt to the position of the furnace door of the high-temperature furnace.

[0011] Preferably, the secondary pulley comprises two secondary longitudinal beams, the two secondary longitudinal beams are connected by a plurality of secondary cross beams, the outer sides of the two secondary cross beams are respectively provided with a plurality of secondary running wheels, and the two primary longitudinal beams respectively support the secondary running wheels on both sides. The secondary pulley adopts a flat structure, and has a larger space below after extending, which can better accommodate and adapt to the material frame.

[0012] Preferably, a three-stage telescopic drive device is provided on one side of the secondary pulley near the extended end, the moving end of the three-stage telescopic drive device is connected to the claw assembly, and can drive the claw assembly to extend relative to the secondary pulley; the extension direction of the claw assembly relative to the secondary pulley is the same as the extension direction of the secondary pulley relative to the primary pulley. The claw assembly can be extended to further increase the material picking distance.

[0013] Preferably, the claw assembly includes two claw rods and a rear push rod, the front ends of the two claw rods are provided with pull hooks, and a connecting rod is provided between the rear ends of the two claw rods, the rear push rod is fixedly connected to the middle part of the connecting rod, and a plurality of three-stage rollers are respectively provided on the inner sides of the two secondary longitudinal beams, and the three-stage rollers on both sides respectively support the two claw rods, and the rear push rod is connected to the telescopic end of the three-stage drive telescopic device.

[0014] Preferably, the hook includes a hinged portion and an upper convex portion, the hinged portion is hinged to the inner side of the claw rod, the upper convex portion protrudes from the upper surface of the claw rod, the front end surface of the upper convex portion is an inclined surface, and the inner side of the claw rod is also provided with a limit block, and the limit block can abut against the rear end surface of the hinged portion. The hook adopts a hinged flip structure, which is simple and reliable, and can automatically flip the limit block through contact with the material frame, and is suitable for high temperature environments.

[0015] Preferably, the three-stage telescopic drive device is a second telescopic cylinder, the cylinder body of the second telescopic cylinder is installed on the secondary pulley, and the cylinder rod of the second telescopic cylinder is connected to the rear end of the rear push rod.

[0016] It can be seen from the above technical scheme that the advantages of the utility model are that the scheme adopts a two-stage or three-stage telescopic structure, so that the pulling claw assembly can cross the quenching pool for a long distance into the high-temperature furnace to take out the workpiece or the material frame that accommodates the workpiece, thereby improving the degree of automation in forging production, while reducing the labor intensity of the staff and reducing safety risks; through the structural design of the pulling mechanism, the overall structure of the mechanism is compact, occupying as little workshop space as possible, which is convenient for the space planning and layout of the workshop. At the same time, after the pulling mechanism is unfolded, the structure is reasonable, the end weight is reduced, and a larger accommodating space is provided, reducing interference with the position of the material frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0019] Figure 2 It is a structural schematic diagram of a primary pulley in a specific implementation manner of the utility model.

[0020] Figure 3 It is a structural schematic diagram of a secondary pulley in a specific implementation manner of the utility model.

[0021] Description of main reference numerals

[0022] 1. Fixed frame, 2. First-level pulley, 2-1. First-level longitudinal beam, 2-2. Outrigger, 3. Second-level pulley, 3-1. Second-level longitudinal beam, 3-2. Second-level cross beam, 4. Driving sprocket, 5. Driven sprocket, 6. Chain, 7. Driving motor, 8. First telescopic cylinder, 9. First-level walking wheel, 10. Second-level walking wheel, 11. Pull claw rod, 12. Rear push rod, 13. Third-level roller, 14. Pull hook, 15. Second telescopic cylinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] like Figure 1-3 As shown, a quenching furnace pulling mechanism comprises a fixed frame 1, a primary pulley 2 is provided on the fixed frame 1, a primary telescopic driving device is provided between the fixed frame 1 and the primary pulley 2; a secondary pulley 3 is provided on the primary pulley 2, a secondary telescopic driving device is provided between the primary pulley 2 and the secondary pulley 3; the extension direction of the primary pulley 2 relative to the fixed frame 1 is the same as the extension direction of the secondary pulley 3 relative to the primary pulley 2, and a claw assembly is provided at the extended end of the secondary pulley 3, specifically:

[0025] The fixed frame 1 includes two fixed longitudinal beams arranged in parallel, and multiple primary walking wheels 9 are respectively installed on both sides of the primary pulley 2, and the two fixed longitudinal beams respectively support the primary walking wheels 9 on the corresponding sides; the primary pulley 2 includes two primary longitudinal beams 2-1, and multiple supporting legs 2-2 are respectively provided at the bottom of the primary longitudinal beams 2-1, and the primary walking wheels 9 are installed at the lower ends of the supporting legs 2-2; the secondary pulley includes two secondary longitudinal beams 3-1, and the two secondary longitudinal beams 3-1 are connected by multiple secondary cross beams 3-2. Multiple secondary walking wheels 10 are respectively provided on the outer sides of the two secondary cross beams 3-2, and the two primary longitudinal beams 2-1 respectively support the secondary walking wheels 10 on both sides. At the same time, position sensors are also provided between the fixed frame and the primary pulley, and between the primary pulley and the secondary pulley. Preferably, a sensor component mechanically triggered by a travel switch light is used to detect and control the moving distance of the primary pulley and the moving distance of the secondary pulley relative to the primary pulley.

[0026] A three-stage telescopic drive device is provided on one side of the secondary pulley 3 near the extended end, and the moving end of the three-stage telescopic drive device is connected to the claw assembly and can drive the claw assembly to extend relative to the secondary pulley; the extension direction of the claw assembly relative to the secondary pulley is the same as the extension direction of the secondary pulley 3 relative to the primary pulley 2; the claw assembly includes two claw rods 11 and a rear push rod 12, the front ends of the two claw rods 11 are provided with hooks, and a connecting rod is provided between the rear ends of the two claw rods 11, and the rear push rod is fixedly connected to the middle part of the connecting rod, and the inner sides of the two secondary longitudinal beams 3-1 are respectively provided with multiple The three-stage rollers 13 on both sides support the two claw rods 11 respectively, and the rear push rod is connected to the telescopic end of the three-stage telescopic driving device; the hook 14 includes a hinged portion and an upper protrusion, the hinged portion is hinged to the inner side surface of the claw rod 11, the upper protrusion protrudes from the upper surface of the claw rod 11, and the front end surface of the upper protrusion is an inclined surface. The inner side surface of the claw rod 11 is also provided with a limit block, and the limit block can abut against the rear end surface of the hinged portion; at the same time, a position sensor is also provided between the claw assembly and the secondary pulley to detect and control the extension distance of the claw assembly.

[0027] The first-stage telescopic driving device includes a driving sprocket 4 and a driven sprocket 5 installed on a fixed frame 1, a chain 6 is installed around the driving sprocket 4 and the driven sprocket 5, the first-stage pulley 2 is fixedly connected to the chain links in the chain 6, and the driving sprocket 4 is connected to a driving motor 7; the second-stage telescopic driving device includes a telescopic cylinder 8, which can be a pneumatic cylinder or a hydraulic cylinder, the cylinder body of the telescopic cylinder 8 is fixedly installed above the second-stage pulley 3, a connecting seat is provided at the top of the rear end of the first-stage pulley 2, and the cylinder rod of the telescopic cylinder 8 is connected to the connecting seat; the third-stage telescopic driving device is a second telescopic cylinder 15, the cylinder body of the second telescopic cylinder is installed on the second-stage pulley 3, and the cylinder rod of the second telescopic cylinder is connected to the rear end of the rear push rod 12.

[0028] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the three-stage telescopic structure is adopted in this scheme, so that the pulling claw assembly can cross the quenching pool for a long distance into the high-temperature furnace to take out the workpiece or the material frame that accommodates the workpiece, and the operating distance of the mechanism is controlled by the position sensor, thereby improving the degree of automation of forging production, while reducing the labor intensity of the staff and reducing safety risks; through the structural design of the pulling mechanism, the overall structure of the mechanism is compact, occupying as little workshop space as possible, which is convenient for the space planning and layout of the workshop, and at the same time, the structure is reasonable after the pulling mechanism is unfolded, reducing the weight at the end, and providing a larger accommodating space, reducing interference with the position of the material frame.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quenching furnace material pulling mechanism, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a primary pulley (2), and a primary telescopic driving device is provided between the fixed frame (1) and the primary pulley (2); the primary pulley (2) is provided with a secondary pulley (3), and a secondary telescopic driving device is provided between the primary pulley (2) and the secondary pulley (3); the extension direction of the primary pulley (2) relative to the fixed frame (1) is the same as the extension direction of the secondary pulley (3) relative to the primary pulley (2), and a claw assembly is provided at the extended end of the secondary pulley (3).

2. The quenching furnace material pulling mechanism according to claim 1, characterized in that: The primary telescopic drive device comprises a driving sprocket (4) and a driven sprocket (5) mounted on a fixed frame (1); a chain (6) is mounted around the driving sprocket (4) and the driven sprocket (5); the primary pulley (2) is fixedly connected to a link in the chain (6); and the driving sprocket (4) is connected to a driving motor (7).

3. The quenching furnace pulling mechanism according to claim 1, characterized in that: The secondary telescopic drive device comprises a telescopic cylinder (8), the cylinder body of the telescopic cylinder (8) being fixedly mounted above the secondary pulley (3), a connecting seat being provided at the top of the rear end of the primary pulley (2), and a cylinder rod of the telescopic cylinder (8) being connected to the connecting seat.

4. The quenching furnace material pulling mechanism according to any one of claims 1 to 3, characterized in that: The fixed frame (1) comprises two fixed longitudinal beams arranged in parallel, and a plurality of primary running wheels (9) are respectively mounted on both sides of the primary pulley (2), and the two fixed longitudinal beams respectively support the primary running wheels (9) on the corresponding sides.

5. The quenching furnace material pulling mechanism according to claim 4, characterized in that: The primary pulley (2) comprises two primary longitudinal beams (2-1), a plurality of supporting legs (2-2) are respectively provided at the bottom of the primary longitudinal beams (2-1), and the primary running wheels (9) are mounted on the lower ends of the supporting legs (2-2).

6. The quenching furnace material pulling mechanism according to claim 5, characterized in that: The secondary pulley comprises two secondary longitudinal beams (3-1), the two secondary longitudinal beams (3-1) are connected via a plurality of secondary cross beams (3-2), a plurality of secondary running wheels (10) are respectively provided on the outer sides of the two secondary cross beams (3-2), and the two primary longitudinal beams (2-1) respectively support the secondary running wheels (10) on both sides.

7. The quenching furnace material pulling mechanism according to claim 6, characterized in that: A three-stage telescopic drive device is provided on one side of the secondary pulley (3) close to the extended end; the moving end of the three-stage telescopic drive device is connected to the pulling claw assembly and is capable of driving the pulling claw assembly to extend relative to the secondary pulley; the extension direction of the pulling claw assembly relative to the secondary pulley is the same as the extension direction of the secondary pulley (3) relative to the primary pulley (2).

8. The quenching furnace material pulling mechanism according to claim 7, characterized in that: The claw assembly comprises two claw rods (11) and a rear push rod (12), the front ends of the two claw rods (11) are provided with a draw hook, the rear ends of the two claw rods (11) are provided with a connecting rod, the rear push rod is fixedly connected to the middle of the connecting rod, the inner sides of the two secondary longitudinal beams (3-1) are respectively provided with a plurality of third-stage rollers (13), the third-stage rollers (13) on both sides respectively support the two claw rods (11), and the rear push rod is connected to the telescopic end of the three-stage telescopic drive device.

9. The quenching furnace material pulling mechanism according to claim 8, characterized in that: The pull hook (14) comprises a hinged portion and an upper convex portion, the hinged portion is hinged to the inner side surface of the pull claw rod (11), the upper convex portion protrudes from the upper surface of the pull claw rod (11), the front end surface of the upper convex portion is an inclined surface, and the inner side surface of the pull claw rod (11) is also provided with a limit block, and the limit block can abut against the rear end surface of the hinged portion.

10. The quenching furnace material pulling mechanism according to claim 8, characterized in that: The three-stage telescopic drive device is a second telescopic cylinder (15), the cylinder body of the second telescopic cylinder is mounted on the secondary pulley (3), and the cylinder rod of the second telescopic cylinder is connected to the rear end of the rear push rod (12).

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