Automatic feeding device for induction quenching of round bar parts

Abstract

The utility model belongs to the technical field of heat treatment equipment, and relates to an automatic feeding device for induction quenching of round bar parts, which comprises a material box, a plurality of fixed brackets and movable brackets which are distributed along the conveying direction are arranged in the material box in a staggered manner; a plurality of fixed conveying teeth and movable conveying teeth which are the same in shape are arranged on the fixed bracket and the movable bracket respectively, the fixed conveying teeth and the movable conveying teeth are obliquely arranged upwards in the conveying direction and are continuously distributed, and the movable bracket is driven by a power device to reciprocate up and down and conveys parts forwards in a stepping mode. The parts are supported by the movable conveying teeth and slide down along the front inclined faces of the teeth, a conveying belt for axially conveying the parts is arranged at the front end of the material box, and the tail end of the conveying belt is connected with an induction quenching device for horizontal quenching. According to the automatic feeding device for induction quenching of the round bar type parts, the automation degree of the feeding device can be improved, and the working intensity of workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat treatment equipment and relates to an induction hardening automatic feeding device for round bar parts. Background Art

[0002] Uniform round bar parts are a common type of parts. In order to improve their surface hardness, high-frequency surface hardening is generally used. The usual method of high-frequency surface hardening is to fix the parts in the middle with upper and lower center points. At this time, the axis of the parts is distributed vertically, and the parts are heated and quenched by the up and down displacement of the inductor. This method is difficult to feed and the workload of employees is relatively large. In order to realize the automation of feeding and reduce the work intensity of employees, it is very urgent to develop a new quenching feeding device. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an induction hardening automatic feeding device for round bar parts, which can improve the automation degree of the feeding device and reduce the work intensity of employees.

[0004] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0005] An induction hardening automatic feeding device for round bar parts, including a material box, in which a number of fixed brackets and movable brackets are arranged in a staggered manner along the conveying direction. A number of fixed conveying teeth and movable conveying teeth with the same shape are respectively arranged on the fixed brackets and the movable brackets. The fixed conveying teeth and the movable conveying teeth are arranged obliquely upward along the conveying direction and are continuously distributed. The movable bracket is driven by a power device to move up and down reciprocally and convey the parts forward in a step-by-step manner. The parts are lifted by the movable conveying teeth and slide down along the front inclined surface of the teeth. A conveyor belt for axially conveying the parts is arranged at the front end of the material box, and the end of the conveyor belt is connected with an induction hardening device for horizontal hardening.

[0006] In the above-mentioned induction hardening automatic feeding device for round bar parts, when the movable bracket moves to the lowest end, the parts fall into the tooth roots of the fixed conveying teeth. When the movable bracket moves to the highest end, the parts fall into the tooth roots of the movable conveying teeth and cross the tooth tips of the previous fixed conveying teeth.

[0007] In the above-mentioned induction hardening automatic feeding device for round bar parts, preferably, when the movable bracket moves to the lowest end, the front inclined surface of the movable conveying teeth is flush with the front inclined surface of the fixed conveying teeth. When the movable bracket moves to the highest end, the front inclined surface of the movable conveying teeth is flush with the front inclined surface of the previous fixed conveying teeth.

[0008] In the above-mentioned automatic feeding device for induction hardening of round bar parts, the inclination angles of the fixed conveying teeth and the movable conveying teeth are 15°-45°; preferably, the front and rear inclined surfaces of the fixed conveying teeth and the movable conveying teeth are inclined forward.

[0009] In the above-mentioned automatic feeding device for induction hardening of round bar parts, the fixed bracket is welded to the material box as a whole, the power device is fixed at the bottom of the material box, and the power device is connected to the bottom of the movable bracket and supports the movable bracket.

[0010] In the above-mentioned automatic feeding device for induction hardening of round bar parts, the power device is a cylinder, the cylinder block of the cylinder is fixedly connected to the material box, a cross beam connecting all the movable brackets into a whole is arranged at the bottom of the movable bracket, and the piston rod of the cylinder is fixedly connected to the cross beam and drives the cross beam to move up and down reciprocally.

[0011] In the above-mentioned automatic feeding device for induction hardening of round bar parts, a plurality of cross beams are arranged and distributed front and back, and each cross beam is connected to a plurality of cylinders distributed left and right; preferably, two cross beams are arranged, four cylinders are arranged, and each cross beam is connected to two cylinders.

[0012] In the above-mentioned automatic feeding device for induction hardening of round bar parts, a guide plate is arranged between the material box and the conveyor belt, the guide plate is inclined downward from the material box to the conveyor belt, the width of the conveyor belt is adapted to the radial dimension of the parts, and a baffle is arranged on the side of the conveyor belt away from the material box.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. The present utility model provides an automatic feeding device for induction hardening of round bar parts. First, the parts are conveyed along their radial direction, and then along their axial direction. The conveying direction is always horizontal until they are conveyed into the induction hardening device. By changing the hardening method and conveying method, and cooperating with the automatic radial conveying device and axial conveying device, the automatic induction hardening of round bar parts can be realized. Thus, the working intensity of employees is greatly reduced.

[0015] 2. The present utility model provides a radial automatic conveying device, which can convey round bar parts in a step-by-step manner, and has the advantages of simple structure, stable conveying and high automation degree. Description of the Drawings

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is the conveying state of the conveying device of the present utility model Figure 1 ;

[0018] Figure 3 is the conveying state of the conveying device of the present utility model Figure 2 ;

[0019] Figure 4 is the conveying state of the conveying device of the present utility model Figure 3 ;

[0020] Figure 5 is the conveying state of the conveying device of the present utility model Figure 4 ;

[0021] Reference numerals: 1, material box; 2, fixed bracket; 3, movable bracket; 4, fixed conveying teeth; 5, movable conveying teeth; 6, power device; 7, parts; 8, conveyor belt; 9, cross beam; 10, guide plate; 11, baffle plate. Specific embodiments

[0022] The following further describes the present utility model with specific embodiments in conjunction with the accompanying drawings. See Figures 1-5 :

[0023] An induction hardening automatic loading device for round bar parts, comprising a material box 1, wherein a plurality of fixed brackets 2 and movable brackets 3 distributed along the conveying direction are arranged in a staggered manner in the material box 1. A plurality of fixed conveying teeth 4 and movable conveying teeth 5 with the same shape are respectively arranged on the fixed brackets 2 and the movable brackets 3. The fixed conveying teeth 4 and the movable conveying teeth 5 are arranged obliquely upward along the conveying direction and are continuously distributed. The movable bracket 3 is driven by a power device 6 to reciprocate up and down and convey the parts 7 forward in a step-by-step manner. The parts 7 are lifted by the movable conveying teeth 5 and slide down along the front inclined surface of the teeth. A conveyor belt 8 for axially conveying the parts 7 is arranged at the front end of the material box 1, and the end of the conveyor belt 8 is connected with an induction hardening device for horizontal hardening.

[0024] Refer to the attached Figure 1 , during operation, the round bar parts 7 are placed into the material box 1, and the radial conveying device composed of the fixed brackets 2 and the movable brackets 3 conveys them forward in a step-by-step manner. Since only one part 7 can be lifted by the movable conveying teeth 5 on the movable bracket 3 at a time, through the reciprocating movement of the movable bracket 3, the material separation operation can be realized, and the parts 7 entering the conveying process are conveyed one tooth position at a time, so as to continuously convey the parts 7 onto the conveyor belt 8. The conveyor belt 8 continues to axially convey the parts 7 into the induction hardening device, and the left and right center points tightly hold the parts 7 and lift them, and the inductor moves left and right for heating and hardening to complete the processing.

[0025] The step-by-step conveying method of this embodiment is: in the first state (such as in the attached Figure 2As shown in the figure, the movable bracket 3 is at the lowest position. The tooth surfaces of the movable conveying teeth 5 are all below the fixed conveying teeth 4. The part 7 is supported by the fixed conveying teeth 4 and is located at the tooth root of the fixed conveying teeth 4 under the influence of gravity. When changing from State 1 to State 2 (as shown in the appendix Figure 3 ), the movable bracket 3 is driven by the power device 6 to start moving upward. When the movable conveying teeth 5 of the movable bracket 3 move into contact with the part 7 and then continue to move upward, the part 7 will move upward along with the movable conveying teeth 5 and roll downward along the front inclined surface of the movable conveying teeth 5 under the influence of gravity, that is, it is located between the front inclined surface of the movable conveying teeth 5 and the rear inclined surface of the fixed conveying teeth 4. When changing from State 2 to State 3 (as shown in the appendix Figure 4 ), the movable bracket 3 is driven by the power device 6 to continue moving upward to the highest point. At this time, the part 7 is supported by the movable conveying teeth 5 alone and slides forward to the tooth root of the movable conveying teeth 5 under the influence of gravity. At the same time, the part 7 crosses the tooth tip of the previous fixed conveying teeth 4. When changing from State 3 to State 4 (as shown in the appendix Figure 5 ), the movable bracket 3 is driven by the power device 6 to start moving downward. The part 7 is supported by the fixed conveying teeth 4 again and slides forward to the tooth root of the fixed conveying teeth 4 under the influence of gravity. Thus, the part 7 moves forward by one tooth position within one reciprocating cycle of the movable bracket 3.

[0026] Preferably, in order to save the displacement stroke of the power device 6, when the movable bracket 3 moves to the lowest position, the front inclined surface of the movable conveying teeth 5 is flush with the front inclined surface of the fixed conveying teeth 4. When the movable bracket 3 moves to the highest position, the front inclined surface of the movable conveying teeth 5 is flush with the front inclined surface of the previous fixed conveying teeth 4.

[0027] The inclination angles of the above-mentioned fixed conveying teeth 4 and movable conveying teeth 5 are 15° - 45°; preferably, the front and rear inclined surfaces of the fixed conveying teeth 4 and movable conveying teeth 5 are inclined forward.

[0028] The above-mentioned fixed bracket 2 is welded to the feed box 1 as a whole. The power device 6 is fixed at the bottom of the feed box 1. The power device 6 is connected to the bottom of the movable bracket 3 and supports the movable bracket 3.

[0029] In this embodiment, the specific structure of the power device 6 is: the power device 6 is a cylinder. The cylinder block of the cylinder is fixedly connected to the feed box 1. A cross beam 9 that connects all the movable brackets 3 into one body is arranged at the bottom of the movable bracket 3. The piston rod of the cylinder is fixedly connected to the cross beam 9 and drives the cross beam 9 to reciprocate up and down. When the cross beam 9 reciprocates up and down, the movable bracket 3 reciprocates up and down accordingly.

[0030] Further, in order to drive the movable bracket 3 more stably, a plurality of cross beams 9 are provided and distributed front and rear, and each cross beam 9 is connected to a plurality of cylinders distributed left and right; preferably, two cross beams 9 are provided, and four cylinders are provided, and each cross beam 9 is connected to two cylinders.

[0031] In order to enable the part 7 to smoothly enter the conveyor belt 8 from the feed bin 1, a guide plate 10 is provided between the feed bin 1 and the conveyor belt 8. The guide plate 10 is inclined downward from the feed bin 1 to the conveyor belt 8. The width of the conveyor belt 8 is adapted to the radial dimension of the part 7. A baffle 11 is provided on the side of the conveyor belt 8 away from the feed bin 1, and the baffle 11 can prevent the part 7 from rolling out of the conveyor belt 8.

[0032] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic feeding device for induction hardening of round bar parts, comprising a feeding box (1), characterized in that: A plurality of fixed brackets (2) and movable brackets (3) are arranged in an alternating manner in the material box (1) and are distributed along the conveying direction. A plurality of fixed conveying teeth (4) and movable conveying teeth (5) of the same shape are arranged on the fixed bracket (2) and the movable bracket (3), respectively. The fixed conveying teeth (4) and the movable conveying teeth (5) are arranged to be inclined upward and continuously distributed along the conveying direction. The movable bracket (3) is driven by a power device (6) to reciprocate up and down and convey a part (7) forward in a step-by-step manner. The part (7) is lifted by the movable conveying teeth (5) and slides down along the inclined surface in front of the teeth. A conveyor belt (8) for axially conveying the part (7) is arranged at the front end of the material box (1). The end of the conveyor belt (8) is connected to an induction quenching device for horizontal quenching.

2. The induction hardening automatic feeding device for round bar parts according to claim 1 is characterized in that: When the movable bracket (3) moves to the lowermost end, the part (7) falls into the tooth root of the fixed conveying tooth (4); when the movable bracket (3) moves to the uppermost end, the part (7) falls into the tooth root of the movable conveying tooth (5) and passes over the tooth tip of the previous fixed conveying tooth (4).

3. The induction hardening automatic feeding device for round bar parts according to claim 2 is characterized in that: When the movable bracket (3) moves to the lowermost end, the front side inclined surface of the movable conveying tooth (5) is flush with the front side inclined surface of the fixed conveying tooth (4); when the movable bracket (3) moves to the uppermost end, the front side inclined surface of the movable conveying tooth (5) is flush with the front side inclined surface of the previous fixed conveying tooth (4).

4. The induction hardening automatic feeding device for round bar parts according to claim 1 is characterized in that: The inclination angles of the fixed conveying teeth (4) and the movable conveying teeth (5) are 15°-45°.

5. The induction hardening automatic feeding device for round bar parts according to claim 1 is characterized in that: The fixed bracket (2) and the material box (1) are welded together as one body, the power device is fixed to the bottom of the material box (1), and the power device is connected to the bottom of the movable bracket (3) and supports the movable bracket (3).

6. The induction hardening automatic feeding device for round bar parts according to claim 5 is characterized in that: The power device (6) is a cylinder, the cylinder body of which is fixedly connected to the material box (1), and a crossbeam (9) is provided at the bottom of the movable bracket (3) to connect all the movable brackets (3) into one, and the piston rod of the cylinder is fixedly connected to the crossbeam (9) and drives the crossbeam (9) to reciprocate up and down.

7. The automatic induction hardening feeding device for round bar parts according to claim 6 is characterized in that: The cross beams (9) are provided in plurality and distributed in front and back, and each cross beam (9) is connected to a plurality of cylinders distributed in left and right.

8. The automatic induction hardening feeding device for round bar parts according to claim 1 is characterized in that: A guide plate (10) is provided between the material box (1) and the conveyor belt (8), and the guide plate (10) is inclined downward from the material box (1) to the conveyor belt (8). The width of the conveyor belt (8) is adapted to the radial dimension of the part (7), and a baffle (11) is provided on the side of the conveyor belt (8) away from the material box (1).

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