Automatic feeding mechanism of continuous mesh belt tempering furnace

Abstract

An automatic feeding mechanism of a continuous mesh belt tempering furnace is automatic feeding equipment for tempering car parts after medium-frequency quenching and cleaning, and adopts the technical scheme that the automatic feeding mechanism comprises a working table plate and a tempering furnace, the working table plate is fixedly connected with a furnace body of the tempering furnace through a transition plate, and a feeding device, a pushing device and a control device are arranged on the working table plate. An electric control cabinet is arranged below the working table plate, a controller connected with an automatic control system is arranged in the electric control cabinet, the feeding device automatically takes workpieces and sends the workpieces to the tempering furnace, the pushing device pushes the multiple rows of workpieces to an inlet of a mesh belt of the tempering furnace, and the workpieces on the mesh belt automatically enter the heating box. According to the tempering furnace, automatic multi-row feeding can be carried out when outer ring or jacket workpieces in a car are tempered, the labor intensity of operators can be reduced, the working efficiency is improved, the supply time is shortened, the occupied area of the tempering furnace is reduced, labor force is liberated, and the operators have time to supervise other equipment.

Description

Technical Field

[0001] The invention relates to automatic feeding equipment, in particular to an automatic feeding mechanism for a continuous net-belt tempering furnace. Background Art

[0002] The transmission shaft of the car constant velocity universal joint is composed of a fixed end section, an intermediate shaft and a movable end section. The fixed end section is directly connected to the wheel hub of the car wheel, and the movable end section is directly connected to the differential of the engine. The power of the engine is transmitted to the wheel through the differential, the movable end section, the intermediate shaft, the fixed end section and the wheel hub, thereby driving the wheel to rotate. The fixed end section is mainly composed of an outer ring, a retainer, an inner ring and a steel ball; the movable end section is mainly composed of an outer sleeve, a retainer, an inner sleeve and a steel ball. Both the outer ring and the outer sleeve must be tempered after medium frequency quenching and cleaning to eliminate internal stress, reduce brittleness, stabilize the organization and adjust the mechanical properties. Tempering generally uses a continuous mesh belt tempering furnace to meet the single-piece flow requirements. Since the tempering time usually needs to meet two hours, if a single row of workpieces is used for tempering, the tempering furnace will be too long and occupy too much space. If multiple rows of workpieces are used for tempering and manual loading is used, the labor intensity of the operator is high and the efficiency is low. In the past, the outer ring or jacket tempering was done manually by loading multiple rows of workpieces. This tempering method is not only labor-intensive and inefficient, but also affects the delivery schedule. Therefore, a mechanism that can efficiently load the outer ring or jacket for tempering is urgently needed at the processing site. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic feeding mechanism for a continuous mesh belt tempering furnace. The technology can be used to automatically feed multiple rows of workpieces with high efficiency when tempering an outer ring or an outer sleeve, thereby reducing the labor intensity of operators and the area occupied by the tempering furnace.

[0004] The technical solution of the present invention is: an automatic feeding mechanism for a continuous mesh belt tempering furnace, comprising a workbench and a tempering furnace, wherein the tempering furnace comprises a furnace body, a heating box, a tempering furnace mesh belt inlet and a tempering furnace mesh belt outlet, the workbench is fixedly connected to the furnace body of the tempering furnace through a transition plate, a feeding device, a pushing device and a control device are mounted on the workbench, an electric control cabinet is mounted under the workbench, a controller connected to an automatic control system is mounted in the electric control cabinet, the pushing device comprises a cylinder B fixedly mounted on the workbench and a guide block, the movable end of the cylinder B is fixedly connected to a push plate, two guide rods are fixedly connected to the push plate, the two guide rods are respectively slidably connected in the guide holes of the two guide blocks, a plurality of cylindrical recesses A are arranged on the push plate, and when the push plate is pushed forward, the cylindrical recesses A are opposite to the transition plate; the feeding device comprises a support plate fixedly mounted on the workbench and a Feeding belt, the support plate is fixedly equipped with a horizontal guide rail, a servo motor, a bearing seat A, a bearing seat B, a sensor A, a sensor B, and a sensor C. The rotating end of the servo motor is fixedly connected with a screw, and both ends of the screw are supported by the bearing seat A and the bearing seat B. The horizontal guide rail and the screw are equipped with a slide plate, the screw is spirally connected to the nut fixed in the slide plate, the slide plate is slidably connected to the horizontal guide rail, the slide plate is equipped with a fixedly connected cylinder A, the movable end of the cylinder A is fixedly connected to the feeding plate, the side of the feeding plate is fixedly equipped with a sensing head, and a cylindrical recess B is provided on the feeding plate. When the feeding plate moves to feed, the cylindrical recess B pushes the workpiece to a position relative to the cylindrical recess A on the push plate. The control device includes a touch display screen fixedly installed on the workbench, the touch display screen is provided with a start button, an emergency stop switch, and an audible and visual alarm, and the various components of the control device are electrically connected to the controller through signal lines.

[0005] The transition plate has a certain angle with the horizontal line, the lower end of the transition plate is opposite to the mesh belt inlet of the tempering furnace, and a gap is arranged between the lower end of the transition plate and the mesh belt inlet of the tempering furnace.

[0006] The feeding belt is higher than the working table.

[0007] The principle of the present invention is: the workpieces transported by the feeding belt are sent one by one to the front of multiple cylindrical recesses of the push plate through the servo motor, the lead screw, the horizontal guide rail, the slide plate, the cylinder A, and the feeding plate. The number of workpieces sent is set according to the set value (usually 6-8 pieces). The servo motor, the lead screw, the horizontal guide rail, the slide plate, the cylinder A, and the feeding plate return to their original positions. The push plate pushes the workpiece, passes through the transition plate, and the workpiece slides onto the entrance mesh belt of the continuous tempering furnace. The workpiece is brought into the tempering furnace by the mesh belt of the tempering furnace for tempering treatment. The push plate retreats, and the servo motor, the lead screw, the horizontal guide rail, the slide plate, the cylinder A, and the feeding plate again send the workpieces transported by the feeding belt one by one to the front of multiple cylindrical recesses of the push plate, and the next feeding cycle is carried out...

[0008] The advantages of the present invention are: it can automatically load multiple rows of materials when tempering the outer ring or the outer sleeve, reducing the labor intensity of the operator, improving work efficiency, shortening the delivery time, reducing the floor space of the tempering furnace, liberating labor, and allowing the operator to have time to supervise other equipment. Two people can be saved in double shifts, and 200,000 yuan in labor costs can be saved annually, which increases customer satisfaction and enhances the core competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the automatic feeding mechanism of the continuous mesh belt tempering furnace of the present invention.

[0010] Figure 2 yes Figure 1 Top view of the .

[0011] Figure 3 yes Figure 1 AA direction diagram in.

[0012] Figure 4 yes Figure 1 Enlarged view of part I.

[0013] In the figure: 1 push plate, 2 guide block, 3 frame, 4 electric control cabinet, 5 workbench, 6 emergency stop switch, 7 start button, 8 touch display screen, 9 sound and light alarm, 10 cylinder B, 11 guide rod, 12 sensor B, 13 sensor A, 14 support plate, 15 servo motor, 16 cylinder A, 17 slide plate, 18 horizontal guide rail, 19 sensor head, 20 feeding plate, 21 cylindrical recess B, 22 workpiece, 23 transition plate, 24 tempering furnace mesh belt inlet, 25 heating box, 26 tempering furnace mesh belt outlet, 27 furnace body, 28 cylindrical recess A, 29 bearing seat A, 30 screw, 31 bearing seat B, 32 feeding belt, 33 tempering furnace, 34 sensor C. DETAILED DESCRIPTION

[0014] The automatic feeding mechanism of the continuous mesh belt tempering furnace is an automatic feeding device for tempering car parts after medium frequency quenching and cleaning. The technical scheme includes a workbench 5 and a tempering furnace 33. The tempering furnace 33 includes a furnace body 27, a heating box 25, a tempering furnace mesh belt inlet 24, and a tempering furnace mesh belt outlet 26. The workbench 5 is fixedly connected to the furnace body 27 of the tempering furnace through a transition plate 23. A feeding device, a pushing device, and a control device are installed on the workbench. An electric control cabinet 4 is installed under the workbench. The electric control cabinet is equipped with the automatic control system. The controller connected to the system, the pushing device includes a cylinder B10 and a guide block 2 fixedly mounted on the workbench, the movable end of the cylinder B is fixedly connected to a push plate 1, two guide rods 11 are fixedly connected to the push plate, the two guide rods are respectively slidably connected in the guide holes of the two guide blocks 2, and a plurality of cylindrical recesses A28 are provided on the push plate. When the push plate 1 is pushed forward, the cylindrical recesses A28 are opposite to the transition plate 23; the feeding device includes a support plate 14 fixedly mounted on the workbench and a feeding belt 32 mounted on the right side of the workbench, The support plate 14 is fixedly provided with a horizontal guide rail 18, a servo motor 15, a bearing seat A29, a bearing seat B31, a sensor A13, a sensor B12, and a sensor C34. The rotating end of the servo motor 15 is fixedly connected with a lead screw 30, and both ends of the lead screw are supported by the bearing seat A29 and the bearing seat B31. The horizontal guide rail 18 and the lead screw 30 are provided with a slide plate 17, and the lead screw 30 is spirally connected with a nut fixed in the slide plate 17. The slide plate 17 is slidably connected to the horizontal guide rail 18, and a fixedly connected Cylinder A16, the movable end of cylinder A16 is fixedly connected with a feed plate 20, a sensor head 19 is fixedly installed on the side of the feed plate, a cylindrical recess B21 is provided on the feed plate 20, when the feed plate 20 moves to feed, the cylindrical recess B21 pushes the workpiece to a position opposite to the cylindrical recess A28 on the push plate 1, the control device comprises a touch screen 8 fixedly installed on the work table, the touch screen 8 is provided with a start button 7, an emergency stop switch 6, and an audible and visual alarm 9, and the various components of the control device are electrically connected to the controller through signal lines.

[0015] The transition plate 23 has a certain angle with the horizontal line, the lower end of the transition plate 23 is opposite to the mesh belt inlet 24 of the tempering furnace, and a gap is provided between the lower end of the transition plate and the mesh belt inlet 24 of the tempering furnace.

[0016] The feeding belt 32 is higher than the workbench 5 .

[0017] The cylinder described in this article is a mechanical product of the prior art. The cylinder generally has a cylinder body as a fixed end, which is fixedly mounted on a component corresponding to it. The cylinder also has a telescopic end as a moving end, which is also called a telescopic rod. The telescopic end reciprocates along its axial direction within a designed stroke. The telescopic cylinder is mainly divided into pneumatic telescopic cylinders, electric telescopic cylinders, electromagnetic telescopic cylinders and hydraulic telescopic cylinders, etc. In this application, pneumatic telescopic cylinders (cylinders) and electric telescopic cylinders are preferred; among them, pneumatic telescopic cylinders are prior art products that convert pressurized gas into mechanical action.

[0018] The servo motor is a prior art product. The servo motor is servo-controlled and can accurately control the speed, position and torque.

[0019] In order to make the drawings clear, the pipelines, wires and standard parts in the drawings are omitted.

[0020] The human-machine interface of the controller is preferably a touch screen, which is arranged on the surface of the electrical cabinet or mounted on the frame, so as to facilitate operation by the on-site staff, who can control the operation of the whole machine on the touch screen 8. An audible and visual alarm is installed on the frame or the electrical cabinet, which is used to emit specific sound and light to indicate the working state of the automatic feeding mechanism of the continuous mesh belt tempering furnace or to adjust various parameters or to give audible and visual alarm for any fault.

[0021] The working process of the present invention is: press the start button 7, the rotating end of the servo motor 15 drives the lead screw 30 to rotate, and the lead screw 30 drives the slide plate 17 to move to the original position set by the program by rotating in the nut fixed on the slide plate 17. At this time, the sensor A13 senses the sensor head 19, and the servo motor 15 stops moving. This is the right origin position (original position) of the slide plate 17. The synchronous feeding belt 32 runs to transport the outer ring or outer sleeve (workpiece 22) to the worktable 5. At this time, the sensor B12 senses the workpiece 22, and the telescopic end of the cylinder A16 drives the feeding plate 20 downward. The cylindrical recess B21 on the feeding plate 20 is opposite to the workpiece 22. The rotating end of the servo motor 15 drives the lead screw 30 to rotate. The lead screw 30 drives the slide plate 17 to move left by rotating in the nut fixed on the slide plate 17. The feeding plate 20 drives the workpiece 22 to move left until the workpiece 22 reaches the first recess front position of the cylindrical recess A28 on the push plate 1 set according to the program. At this time, the feeding plate 20 reaches the sensor C34, and the sensor C34 The induction head 19 is sensed, the servo motor 15 stops moving, the telescopic end of the cylinder A16 drives the feeding plate 20 to move upward and backward, the rotating end of the servo motor 15 drives the screw 30 to rotate, and the screw 30 drives the slide plate 17 to move to the right to its original position by rotating in the nut fixed on the slide plate 17, and the feeding belt 32 runs to transport the second workpiece 22 to the worktable 5. At this time, the sensor B12 senses the workpiece 22, and the telescopic end of the cylinder A16 drives the feeding plate 20 downward. The cylindrical recess B21 on the feeding plate 20 is opposite to the workpiece 22, and the rotating end of the servo motor 15 drives the screw 30 to rotate. The screw 30 drives the slide plate 17 to move to the original position by rotating in the nut fixed on the slide plate 17. The slide plate 17 moves to the left, and the feed plate 20 drives the workpiece 22 to move to the left until the workpiece 22 reaches the position in front of the second concave of the cylindrical concave A28 on the push plate 1 set according to the program, the servo motor 15 stops moving, the telescopic end of the cylinder A16 drives the feed plate 20 to move upward and retreat, the rotating end of the servo motor 15 drives the lead screw 30 to rotate, and the lead screw 30 drives the slide plate 17 to move to the right to its original position by rotating in the nut fixed on the slide plate 17, and prepares to send the third workpiece 22 to the position in front of the third cylindrical concave of the push plate 1 set according to the program..., and so on and so forth, until the last workpiece 22 is sent to the last position of the push plate 1 set according to the program. At a position in front of a cylindrical recess, the telescopic end of the cylinder A16 drives the feeding plate 20 upward and backward, and the telescopic end of the cylinder B10 drives the push plate 1 to push the workpiece 22 in front of it forward to the lower end of the transition plate 23, and the workpiece 22 slides onto the tempering furnace mesh belt (it is brought into the heating box (25) by the tempering furnace mesh belt for tempering treatment, and then passes through the tempering furnace mesh belt outlet (26) to the next process after tempering). The telescopic end of the cylinder B10 drives the push plate 1 to retreat, and the rotating end of the servo motor 15 drives the lead screw 30 to rotate. The lead screw 30 drives the slide plate 17 to move rightward to its original position by rotating in the nut fixed on the slide plate 17, ready to feed again, and enter the next feeding cycle...

[0022] The transition plate 23 is at a certain angle to the horizontal plane, so that the workpiece 22 can slide down onto the tempering furnace mesh belt;

[0023] The cylindrical recess B21 provided on the feed plate 20 is used to match the outer circle of the outer ring or the outer sleeve, so that the feed plate 20 can drive the workpiece 22 to move smoothly and prevent the workpiece 22 from detaching from the feed plate 20; the cylindrical recess A28 provided on the push plate 1 is used to match the outer circle of the outer ring or the outer sleeve, so that the push plate can drive the workpiece 22 to move smoothly and prevent the workpiece 22 from detaching from the push plate.

Claims

1. An automatic feeding mechanism for a continuous mesh belt tempering furnace, comprising a workbench (5) and a tempering furnace (33), wherein the tempering furnace (33) comprises a furnace body (27), a heating box (25), a tempering furnace mesh belt inlet (24), and a tempering furnace mesh belt outlet (26), wherein the workbench (5) and the furnace body (27) of the tempering furnace are fixedly connected via a transition plate (23), and characterized in that: The workbench is provided with a feeding device, a pushing device, and a control device. An electric control cabinet (4) is provided below the workbench. A controller connected to an automatic control system is provided in the electric control cabinet. The pushing device comprises a cylinder B (10) and a guide block (2) fixedly mounted on the workbench. The movable end of the cylinder B is fixedly connected with a push plate (1). Two guide rods (11) are fixedly connected to the push plate. The two guide rods are respectively slidably connected in the guide holes of the two guide blocks (2). The push plate is provided with a plurality of cylindrical recesses. The cylindrical recess A (28) is opposite to the transition plate (23) when the push plate (1) is pushed forward; the feeding device comprises a support plate (14) fixedly mounted on the work table and a feeding belt (32) mounted on the right side of the work table; the support plate (14) is fixedly mounted with a horizontal guide rail (18), a servo motor (15), a bearing seat A (29), a bearing seat B (31), a sensor A (13), a sensor B (12), a sensor C (34); the servo motor ( The rotating end of the guide rail (15) is fixedly connected to a lead screw (30), and the two ends of the lead screw are supported by a bearing seat A (29) and a bearing seat B (31). A slide plate (17) is installed on the horizontal guide rail (18) and the lead screw (30). The lead screw (30) is spirally connected to a nut fixed in the slide plate (17). The slide plate (17) is slidably connected to the horizontal guide rail (18). A cylinder A (16) is fixedly connected to the slide plate (17). The movable end of the cylinder A (16) is fixedly connected to a feed plate (20). The side of the feed plate is fixedly installed The invention discloses a control device for a workpiece, wherein the control device comprises a sensing head (19), a cylindrical recess B (21) is arranged on a feeding plate (20), and when the feeding plate (20) moves to feed materials, the cylindrical recess B (21) pushes the workpiece to a position opposite to the cylindrical recess A (28) on the push plate (1). The control device comprises a touch screen (8) fixedly mounted on a worktable, and the touch screen (8) is provided with a start button (7), an emergency stop switch (6), and an audible and visual alarm (9). The components of the control device are electrically connected to the controller through signal lines.

2. The automatic feeding mechanism of the continuous mesh belt tempering furnace according to claim 1 is characterized by: The transition plate (23) has a certain angle with the horizontal line, the lower end of the transition plate (23) is opposite to the tempering furnace mesh belt inlet (24), and a gap is provided between the lower end of the transition plate and the tempering furnace mesh belt inlet (24).

3. The automatic feeding mechanism of the continuous mesh belt tempering furnace according to claim 1 is characterized in that: The loading belt (32) is higher than the workbench (5).

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