Medium-frequency annealing device for shaft parts

Abstract

The utility model belongs to the field of heat treatment devices, and particularly relates to an intermediate-frequency annealing device for shaft parts. Comprising a rack (100), and a feeding device (200), a pushing device (300), a rotating device (400), a discharging device (500) and a heat treatment device (600) are arranged on the rack (100); the feeding device (200) conveys a workpiece (1) into the rotating device (400), the pushing device (300) pushes and controls the workpiece (1) to be subjected to heat treatment through the heat treatment device (600), and then the pushing device (300) pushes the workpiece (1) to the discharging device (500). The annealing device is high in efficiency, high in reliability, high in annealing quality, high in safety, simple in structure and capable of giving an alarm in time when problems are found, and the production cost is saved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of heat treatment devices, and particularly relates to a shaft part medium-frequency annealing device. BACKGROUND

[0002] In the mechanical industry, shaft parts are most popular, and machining of shaft parts is most common. Shaft parts are mainly used to support transmission parts, transmit torque and bear load, and both hardness requirements and machinability of the shaft parts need to be considered. In order to meet the requirements, heat treatment processes are mostly used in the market to anneal workpieces.

[0003] Annealing is a metal heat treatment process, which refers to slowly heating a metal workpiece to a certain temperature, keeping it for a sufficient time, and then cooling it at a suitable speed. The purpose is to reduce the hardness, improve the machinability, eliminate residual stress, stabilize the size, reduce deformation and crack tendency, refine the grain, adjust the organization and eliminate the organization defects.

[0004] The existing medium-frequency annealing of the mechanical industry mostly uses manual feeding and discharging. The workpiece temperature is high after annealing, manual operation needs to wait for the workpiece to cool down before feeding and discharging, the processing efficiency is low, the safety factor is low, and artificial misoperation can cause burns. The specific operation method of manual feeding and discharging is that the shaft workpiece is taken out from the tray into the annealing tool by manual operation, the annealing machine is started to anneal, and the workpiece is pulled out after the workpiece cools down after annealing. The disadvantages of this feeding method are high labor intensity, low production efficiency, and unguaranteed annealing processing quality, uneven heating, high annealing workpiece temperature, and great safety hazards. SUMMARY

[0005] The shaft part medium-frequency annealing device is provided to solve the problems of low efficiency, poor reliability, low annealing processing quality, complex structure, high cost, inability to timely alarm for problems, high annealing workpiece temperature, and great safety hazards of the existing shaft part medium-frequency annealing device. The shaft part medium-frequency annealing device comprises a rack, an upper feeding device, a pushing device, a rotating device, a lower discharging device and a heat treatment device arranged on the rack. The upper feeding device delivers the workpiece into the rotating device, the pushing device drives the workpiece to translate and rotate through the heat treatment device, and the pushing device pushes the workpiece to the lower discharging device after heat treatment of the workpiece.

[0006] According to the shaft part medium frequency annealing device, the feeding device comprises a vertical feeding bin base plate, a bottom downwardly inclined hopper-shaped feeding bin arranged on the feeding bin base plate, a rectangular opening arranged at the bottom end of the feeding bin, an adjusting plate arranged in the feeding bin and used for adjusting the position of the workpiece, a pull rod arranged on the side of the adjusting plate and used for pushing and pulling the adjusting plate, a locking block arranged on the pull rod and used for fixing the position of the pull rod, a blocking plate arranged on the upper part of the feeding bin base plate and used for ensuring that only one workpiece is fed at a time, a pushing plate vertically arranged below the rectangular opening and used for being pushed through, a pneumatic cylinder connected to the lower part of the pushing plate and used for driving the pushing plate to move up and down, a downwardly inclined discharging chute arranged at the opening of the top of the feeding bin and used for pushing the workpiece to the entrance of the discharging chute, a detection switch arranged above the discharging chute and used for detecting whether the feeding is continuous, an ethylene blocking plate and a methyl blocking plate arranged in sequence at the outlet of the discharging chute and used for separating the workpieces, an ethylene pneumatic cylinder connected to the ethylene blocking plate and used for driving the ethylene blocking plate to move vertically, a methyl pneumatic cylinder connected to the methyl blocking plate and used for driving the methyl blocking plate to move vertically, and a cylinder seat arranged on the discharging chute and used for fixing the ethylene pneumatic cylinder and the methyl pneumatic cylinder.

[0007] According to the shaft part medium frequency annealing device, the rotating device comprises a first roller and a second roller used for driving the workpiece to rotate along the axis of the workpiece, a roller fixing seat connected to the first roller and the second roller and used for fixing the first roller and the second roller on the frame, a first roller gear and a second roller gear connected to one end of the first roller and one end of the second roller respectively, a driving gear engaged with the first roller gear and the second roller gear, and a motor spindle connected to the driving gear, so that the first roller and the second roller are driven to rotate by the motor.

[0008] According to the shaft part medium frequency annealing device, the pushing device comprises a first support seat and a second support seat, a first stand and a second stand arranged at one end of the first support seat and one end of the second support seat respectively, a first stand fixedly connected to the frame through the first support seat, a second stand fixedly connected to the frame through the second support seat, a slide rail module arranged between the first stand and the second stand, a servo motor arranged on the slide rail module, and a pushing rod arranged on the servo motor and used for driving the workpiece on the first roller and the second roller to move along the axis direction of the workpiece.

[0009] According to the shaft part medium frequency annealing device, the heat treatment device comprises a heating device arranged on the second stand and used for annealing the workpiece, a heating power source connected to the heating device, and a temperature sensor used for detecting the temperature of the workpiece.

[0010] According to the shaft part medium frequency annealing device, the blanking device comprises a blanking V-shaped seat and a chain conveyor; each pitch of the chain conveyor is provided with a V-shaped chain plate capable of avoiding contact and collision between workpieces.

[0011] According to the shaft part medium frequency annealing device, the cross section of the baffle is L-shaped, and the cross section of the a baffle is rectangular.

[0012] According to the shaft part medium frequency annealing device, the heating device is a heating coil.

[0013] According to the shaft part medium frequency annealing device, the heating mode of the heating power supply of the heating device adopts induction heating, and the heating device comprises an inductor and a generator.

[0014] According to the shaft part medium frequency annealing device, a temperature sensor is arranged above the heating coil, and the spectral range of the temperature sensor is 3.9 µm.

[0015] The beneficial effects of the present application are as follows:

[0016] 1、The upper feeding bin of the present application is provided with a downward inclined blanking chute at the top opening, and a pushing plate pushes the workpiece to the entrance of the blanking chute; a detection switch for detecting whether the feeding is continuous is arranged above the blanking chute; the blanking chute is designed as a standby area, and the rolling distance of the workpiece is reduced through the mutual cooperation of the movement of the baffle and the a baffle; when the workpiece in the upper feeding bin is insufficient, the detection switch can detect and alarm the operator to feed, and the feeding time is reserved to ensure the uninterrupted operation of the machine tool; the workpiece can be fed without cooling, which ensures the safety of the annealing treatment and improves the efficiency of the annealing treatment.

[0017] 2、The outlet of the blanking chute of the present application is sequentially provided with a baffle and an a baffle for separating workpieces; the baffle is connected with a baffle cylinder, and the baffle cylinder drives the baffle to vertically reciprocate; the a baffle is connected with an a baffle cylinder, and the a baffle cylinder drives the a baffle to vertically reciprocate; after the baffle and the a baffle fall down and separate a workpiece, the a baffle is lifted, and the workpiece falls through the blanking chute one by one onto the first roller and the second roller of the rotating device, which ensures that the workpiece is continuously and orderly annealed, and ensures the production efficiency and annealing quality of the annealing treatment.

[0018] 3、The present application is provided with a first roller and a second roller for rotating the workpiece along its axis; the first roller gear and the second roller gear are each engaged with a driving gear; the driving gear is connected with a motor spindle; so that the first roller and the second roller are driven to rotate by the motor; the workpiece rotates at a constant speed along its own axis during the annealing process, so that the heating is uniform, and the quality of the workpiece annealing process is improved.

[0019] 4、The sliding rail module of the present application is provided with a servo motor, the servo motor is provided with a material pushing rod for pushing the workpiece on the first roller and the second roller to move along the axial direction, the material pushing rod pushes the workpiece to move at a constant speed along the axial direction, the servo motor drives and controls the walking distance and speed of the material pushing rod, so that the pushing, heating feeding and discharging of the workpiece can be ensured, the workpiece is aged and kept warm after annealing, a temperature sensor is arranged above the workpiece, the workpiece is pushed to the discharging device when the temperature meets the requirement, the material pushing rod can complete the workpiece annealing station conveying, workpiece travel speed control and workpiece discharging after annealing at one time, the structure is simple and efficient, and the quality of the workpiece annealing treatment is improved.

[0020] 5、The temperature sensor above the heating coil of the present application has a spectral range of 3.9µm, even in the case of a very large measurement distance, the water vapor and the gas generated by heating in the field of view of the temperature sensor will not have any effect on the measurement result, thereby further improving the quality of the workpiece annealing treatment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The shaft part medium frequency annealing device of the present application.

[0022] Figure 2 The shaft part medium frequency annealing device of the present application.

[0023] Figure 3 The shaft part medium frequency annealing device of the present application.

[0024] Figure 4 The shaft part medium frequency annealing device of the present application.

[0025] Figure 5 The shaft part medium frequency annealing device of the present application.

[0026] In the diagram: 100-Frame, 200-Feeding device, 300-Pushing device, 400-Rotating device, 500-Unloading device, 600-Heat treatment device, 201-Booth base plate, 202-Feeding bin, 203-Adjusting plate, 204-Pull rod, 205-Locking block, 206-Baffle plate, 207-Pushing plate, 208-Cylinder C, 209-Unloading slide, 210-Detection switch, 211-Baffle B, 212-Baffle A, 213-Cylinder B, 214-Cylinder A, 215-Cylinder seat, 216-Switch seat. 401-First roller, 402-Second roller, 403-Roller fixing seat, 404-First roller gear, 405-Second roller gear, 406-Drive gear, 407-Motor, 301-First support seat, 302-Second support seat, 303-First column, 304-Second column, 305-Slide rail module, 306-Servo motor, 307-Top rod, 601-Heating device, 602-Heating power supply, 603-Temperature sensor, 501-Discharge V-shaped seat, 502-Chain conveyor, 503-V-shaped chain plate. Detailed Implementation

[0027] Preferred Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. 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.

[0029] like Figure 1 As shown: A medium-frequency annealing apparatus for shaft parts includes a frame 100, on which a feeding device 200, a pushing device 300, a rotating device 400, a discharging device 500, and a heat treatment device 600 are mounted; the feeding device 200 transports the workpiece 1 into the rotating device 400, and the pushing device 300 drives the workpiece 1 to translate and rotate through the heat treatment device 600; after the workpiece 1 undergoes heat treatment, the pushing device 300 pushes the workpiece 1 to the discharging device 500.

[0030] like Figure 2As shown in the figure: the feeding device 200 includes: a vertically arranged hopper base plate 201; a bottom downwardly inclined hopper 202 arranged on the hopper base plate 201, the bottom end of the hopper 202 is provided with a rectangular opening; an adjusting plate 203 for adjusting the position of the workpiece 1 is arranged in the hopper 202; a pull rod 204 for pushing and pulling the adjusting plate 203 is arranged on the side of the adjusting plate 203; a locking block 205 for fixing the position of the pull rod 204 is arranged on the pull rod 204; a material blocking plate 206 is arranged on the upper part of the hopper base plate 201 to ensure that only one workpiece 1 is fed at a time; a push plate 207 vertically arranged below the rectangular opening can pass through it, the push plate 207 is connected with a propylene cylinder 208 for driving it to move up and down reciprocally; a downwardly inclined discharging chute 209 is arranged at the top opening of the hopper 202, the push plate 207 can push the workpiece 1 to the entrance of the discharging chute 209; a detection switch 210 is arranged above the discharging chute 209 to detect whether the feeding is continuous; an ethylene baffle 211 and a methyl baffle 212 are arranged in sequence at the outlet of the discharging chute 209 to separate the workpieces 1; the ethylene baffle 211 is connected with an ethylene cylinder 213, the ethylene cylinder 213 drives the ethylene baffle 211 to move vertically reciprocally; the methyl baffle 212 is connected with a methyl cylinder 214, the methyl cylinder 214 drives the methyl baffle 212 to move vertically reciprocally; after the ethylene baffle 211 and the methyl baffle 212 fall down and separate one workpiece 1, the methyl baffle 212 is lifted up, and the workpiece 1 falls through the discharging chute 209 into the rotating device 400; a cylinder seat 215 is arranged on the discharging chute 209 to fix the methyl cylinder 214 and the ethylene cylinder 213; the detection switch 210 is fixedly arranged on the cylinder seat 215 through a switch seat 216.

[0031] As shown in the figure: Figure 4 , Figure 5 The rotating device 400 includes: a first roller 401 and a second roller 402 for rotating the workpiece 1 along the axis thereof; a roller fixing seat 403 is connected to the first roller 401 and the second roller 402, and the first roller 401 and the second roller 402 are fixed on the rack 100 through the roller fixing seat 403; a first roller gear 404 and a second roller gear 405 are respectively connected to one end of the first roller 401 and one end of the second roller 402; a driving gear 406 is engaged with the first roller gear 404 and the second roller gear 405; a motor 407 main shaft is connected to the driving gear 406; so that the first roller 401 and the second roller 402 are driven to rotate by the motor 407.

[0032] The pushing device 300 comprises a first support base 301, a second support base 302, a first stand column 303 and a second stand column 304 arranged at one end of the first support base 301 and the second support base 302 respectively, the first stand column 303 is fixedly connected with the rack 100 through the first support base 301, the second stand column 304 is fixedly connected with the rack 100 through the second support base 302, a slide rail module 305 is arranged between the first stand column 303 and the second stand column 304, a servo motor 306 is arranged on the slide rail module 305, and a pushing rod 307 for pushing the workpiece 1 on the first roller 401 and the second roller 402 to move along the axial direction is arranged on the servo motor 306.

[0033] As shown in Figure 4 The heat treatment device 600 comprises a heating device 601 arranged on the second stand column 304 for annealing the workpiece 1, a heating power supply 602 connected with the heating device 601, and a temperature sensor 603 for detecting the temperature of the workpiece 1.

[0034] The discharging device 500 comprises a discharging V-shaped base 501 and a chain conveyor 502, and a V-shaped chain plate 503 for avoiding contact and collision between the workpieces 1 is arranged at each pitch of the chain conveyor 502. The cross section of the baffle 211 of the feeding device 200 is L-shaped, and the cross section of the a baffle 212 is rectangular. The heating device 601 is a heating coil. The heating mode of the heating power supply 602 of the heating device 601 adopts induction heating, which comprises an inductor and a generator. The temperature sensor 603 is arranged above the heating coil, and the spectral range of the temperature sensor 603 is 3.9 µm.

[0035] In the embodiment, the workpiece 1 is placed into the feeding bin 202, the feeding bin 202 is provided with an adjusting plate 203 for adjusting the position of the workpiece 1, the c gas cylinder 208 drives the workpiece 1 to be pushed onto the discharging chute 209, the feeding bin base plate 201 is provided with a blocking plate 206 to ensure that only one workpiece 1 can be fed at a time, the discharging chute 209 is provided with an a gas cylinder 214 connected with the a baffle 212, the feeding bin 202 continuously feeds, and when the detection switch 201 detects the workpiece 1, the feeding bin 202 stops feeding, and when the detection switch 201 does not detect the workpiece 1 for a long time, the equipment alarms to remind the worker to feed the feeding bin 202, the b gas cylinder 213 drives the baffle 211 to fall, the workpiece 1 is separated, the a gas cylinder 214 is reset, the workpiece 1 falls between the first roller 401 and the second roller 402, the a gas cylinder 214 drives the a baffle 212 to fall, the b gas cylinder 213 is reset, and the reciprocating work is performed; the discharging chute 209 is used to reduce the rolling distance of the workpiece 1, and when the workpiece 1 in the feeding bin 202 is insufficient, the discharging chute 209 can alarm to remind the operator to feed, and the feeding time is reserved to ensure that the device works continuously;

[0036] The first roller 401 and the second roller 402 are fixed at both ends of the bearing fixing seat 403, the first roller 401 and the second roller 402 are respectively provided with the first roller gear 404 and the second roller gear 405 at one end, the first roller gear 404 is engaged with the second roller gear 405, the first roller gear 404 and the second roller gear 405 are provided with the motor 407 on one side, the output shaft of the motor 407 is connected with the driving gear 407, the driving gear 407 is engaged with the first roller gear 404 and the second roller gear 405, the motor 407 drives the driving gear 406 to rotate and drives the first roller 401 and the second roller 402 to rotate together, so that the workpiece 1 can rotate on the first roller 401 and the second roller 402, and the workpiece 1 is uniformly heated during annealing, and the workpiece 1 rotates at the same time, the workpiece 1 is pushed to the heating coil by the ejector rod 307 of the pushing device 300, the ejector rod 307 is driven by the servo motor 306, the walking distance and the walking speed of the ejector rod 307 can be controlled, and the pushing and feeding of the workpiece 1 and the discharging can be ensured.

[0037] The heating coil heats the workpiece 1, and the temperature sensor 603 is arranged above the heating coil, the spectral range of the temperature sensor 603 is 3.9 µm, even in the case of a large measurement distance, water vapor and gas generated by heating in the field of view of the temperature sensor 603 will not have any effect on the measurement result, and the heating is stopped after the temperature reaches, and the annealing and discharging are automatically completed without manual operation, so that the production efficiency of the device and the continuity of the equipment can be greatly improved. After the temperature meets the requirements, the pushing device 300 pushes the workpiece 1 to the discharging V seat 501, and the discharging device 500 comprises a chain conveyor 502, and the chain conveyor 502 is provided with a V-shaped chain plate 503 at each pitch, and the discharging V seat 501 is connected with the chain conveyor 502 to push the workpiece 1 into the discharging device 500, so that the contact and collision between the workpieces 1 can be avoided.

[0038] The heating power supply 602 adopts induction heating, including an inductor and a generator, on the basis of a resonant circuit composed of a capacitor and an inductor, the generator provides necessary alternating current, and the alternating current generated by the generator forms an electromagnetic field around the heating coil, and the electromagnetic field can quickly heat the workpiece.

[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A medium frequency annealing device for shaft parts, characterized in that: The utility model provides a kind of heat treatment device, including rack (100), be provided with feeding device (200) on rack (100), push material device (300), rotating device (400), unloading device (500), heat treatment device (600) on rack (100);Feeding device (200) is conveyed workpiece (1) into rotating device (400), push material device (300) drives workpiece (1) to be translated and rotates and passes through heat treatment device (600);Workpiece (1) is pushed to unloading device (500) after heat treatment, and push material device (300) pushes workpiece (1).

2. The shaft part medium frequency annealing device according to claim 1, characterized in that: The feeding device (200) includes: a vertically arranged hopper base plate (201); a bottom downwardly inclined hopper (202) is arranged on the hopper base plate (201), and a rectangular opening is arranged at the bottom end of the hopper (202); an adjusting plate (203) is arranged in the hopper (202) for adjusting the position of the workpiece (1); a pull rod (204) is arranged on the side of the adjusting plate (203) and can push and pull the adjusting plate (203); a locking block (205) is arranged on the pull rod (204) to fix the position of the pull rod (204); a blocking plate (206) is arranged at the upper part of the hopper base plate (201) to ensure that only one workpiece (1) is fed at a time; a push plate (207) is vertically arranged below the rectangular opening and can pass through it; a push plate (207) is connected with a propylene cylinder (208) below it to drive it to move up and down reciprocally; a downwardly inclined unloading chute (209) is arranged at the top opening of the hopper (202), and the push plate (207) can push the workpiece (1) to the entrance of the unloading chute (209); a detection switch (210) is arranged above the unloading chute (209) to detect whether the feeding is continuous; an ethylene baffle (211) and a methyl baffle (212) are sequentially arranged at the outlet of the unloading chute (209) to separate the workpiece (1); an ethylene cylinder (213) is connected to the ethylene baffle (211), and the ethylene cylinder (213) drives the ethylene baffle (211) to move vertically reciprocally; a methyl cylinder (214) is connected to the methyl baffle (212), and the methyl cylinder (214) drives the methyl baffle (212) to move vertically reciprocally; after the ethylene baffle (211) and the methyl baffle (212) fall, one workpiece (1) is separated, the methyl baffle (212) is lifted, and the workpiece (1) falls into the rotating device (400) through the unloading chute (209); a cylinder seat (215) is arranged on the unloading chute (209) to fix the methyl cylinder (214) and the ethylene cylinder (213); the detection switch (210) is fixedly arranged on the cylinder seat (215) through a switch seat (216).

3. The shaft part medium frequency annealing device according to claim 2, characterized in that: The rotating device (400) comprises a first roller (401) and a second roller (402) for rotating the workpiece (1) along its axis, a roller fixing seat (403) connected to the first roller (401) and the second roller (402), and fixed on the rack (100) through the roller fixing seat (403), a first roller gear (404) and a second roller gear (405) connected to one end of the first roller (401) and one end of the second roller (402) respectively, a driving gear (406) engaged with the first roller gear (404) and the second roller gear (405), and a motor (407) main shaft connected to the driving gear (406), so as to drive the first roller (401) and the second roller (402) to rotate through the motor (407).

4. The shaft part medium frequency annealing device according to claim 3, characterized in that: The pushing device (300) comprises a first support seat (301) and a second support seat (302), a first stand (303) and a second stand (304) arranged at one end of the first support seat (301) and one end of the second support seat (302) respectively, a first stand (303) fixedly connected with the rack (100) through the first support seat (301), a second stand (304) fixedly connected with the rack (100) through the second support seat (302), a slide rail module (305) arranged between the first stand (303) and the second stand (304), a servo motor (306) arranged on the slide rail module (305), and a pushing rod (307) arranged on the servo motor (306) for pushing the workpiece (1) on the first roller (401) and the second roller (402) to move along the axis direction.

5. The shaft part medium frequency annealing device according to claim 4, characterized in that: The heat treatment device (600) comprises a heating device (601) arranged on the second stand (304) for annealing the workpiece (1), a heating power supply (602) connected with the heating device (601), and a temperature sensor (603) for detecting the temperature of the workpiece (1).

6. The shaft part medium frequency annealing device according to claim 5, characterized in that: The blanking device (500) comprises a blanking V-shaped seat (501) and a chain conveyor (502), and the chain conveyor (502) is provided with a V-shaped chain plate (503) at every pitch to avoid contact and collision between the workpieces (1).

7. The shaft part medium frequency annealing device according to claim 6, characterized in that: The cross section of the baffle (211) of the feeding device (200) is L-shaped, and the cross section of the a baffle (212) is rectangular.

8. The shaft part medium frequency annealing device according to claim 7, characterized in that: The heating device (601) is a heating coil.

9. The shaft part medium frequency annealing device according to claim 8, characterized in that: The heating power supply (602) of the heating device (601) adopts induction heating, and comprises an inductor and a generator.

10. The shaft part medium frequency annealing device according to claim 9, characterized in that: A temperature sensor (603) is arranged above the heating coil, and the spectral range of the temperature sensor (603) is 3.9 µm.

Images