A heat treatment device for bolt manufacturing

Abstract

The utility model relates to heat treatment technical field, concretely is a kind of heat treatment device for bolt manufacturing.It includes frame, first heat insulating box, second heat insulating box, rotating device, push assembly and multiple material boxes.Rotating device includes rotation pipe that is rotatably installed on frame, power component for driving rotation pipe rotation and upper turntable and lower turntable installed on rotation pipe;Multiple material boxes are arranged in annular array above frame;The inside of material box is slidably provided with grid;Two ends of material box are provided with discharge hole, and sealing plate is rotatably installed in two discharge holes;Push assembly includes first electric push rod and push plate;The inside of first heat insulating box and second heat insulating box is equipped with heating device.This technical scheme can realize continuous automation production, can synchronously carry out feeding, heat treatment, cooling and automatic unloading work, and improve work rhythm.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, and in particular to a heat treatment device for bolt manufacturing. Background Technology

[0002] A bolt is a cylindrical threaded fastener used in mechanical parts to fasten two parts with through holes. It consists of a head and a threaded shank. This type of fastener requires a nut and is used to fasten two parts with through holes. This connection between a bolt and a nut is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, a bolted connection is a detachable connection. Bolts require a heat treatment process during production. Heat treatment is a metal heat treatment process in which materials are heated, held at temperature, and cooled in a solid state to obtain the desired structure and properties.

[0003] Patent CN220555706U discloses a heat treatment device for bolt manufacturing, including a heat treatment chamber. A support frame is fixedly mounted on the top of the heat treatment chamber, and a bearing mechanism is provided at the bottom of the support frame. The bearing mechanism includes a second motor, which is fixedly mounted on the top of the support frame. A support plate is fixedly mounted on the bottom of the support frame. A threaded rod is connected between the support plate and the support frame via a bearing. The output end of the second motor is fixedly connected to the threaded rod. A fixing plate is threadedly fitted onto the outside of the threaded rod. A square rod is connected to the top of the fixing plate via a bearing. A third gear is fixedly fitted onto the outside of the square rod. A fourth gear is provided on one side of the third gear. The third gear and the fourth gear mesh with each other. A connecting rod is fixedly connected to the bottom of the fourth gear.

[0004] The aforementioned patents still have the following technical defects: the feeding and unloading processes are cumbersome, and the feeding, heat treatment, and unloading processes are all carried out in the same area, which seriously affects production efficiency. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a heat treatment device for bolt manufacturing.

[0006] The technical solution of this utility model is a heat treatment device for bolt manufacturing, which includes a frame, a first heat insulation box, a second heat insulation box, a rotating device, a pushing component, a vibration driving component, and multiple material boxes.

[0007] The rotating device includes a rotating tube rotatably mounted on a frame, a power assembly for driving the rotating tube to rotate, and an upper and lower turntable mounted on the rotating tube. Multiple material boxes are arranged in a circular array above the frame, mounted on the upper and lower turntables, and passing through both turntables. Both the upper and lower ends of the material boxes are open, and a grid is slidably installed inside each box, with an elastic connecting assembly connecting the grid to the box. Discharge holes are provided at both ends of each box, and sealing plates are rotatably installed in both discharge holes, with rollers rotatably installed at the bottom of the sealing plates. The pushing assembly includes a first electric push rod and a push plate. Located between the upper and lower turntables, the push plate is mounted on the output shaft of the first electric push rod; the second heat insulation box is mounted on the frame and has an opening at its upper end, and the first heat insulation box is located above the upper turntable and has an opening at its lower end; heating devices are installed on the inner sides of both the first and second heat insulation boxes; the vibration drive assembly includes a second electric push rod, a first push frame, and a second push frame mounted on the second push rod. The first push frame is mounted on the first heat insulation box, and the first push frame moves through the inner and outer sides of the first heat insulation box and is connected to the output shaft of the second electric push rod. The second push frame is located on one side of the first push frame, and a connecting frame connects the first push frame and the second push frame.

[0008] Preferably, a fixed support is provided on the frame, the fixed support passes through the rotating tube and the center hole of the lower turntable, and the first electric push rod is installed on the fixed support.

[0009] Preferably, a second open ring and a first open ring are respectively provided on the inner and outer sides between the upper turntable and the lower turntable. The second open ring is connected to the fixed support, and the first open ring is connected to the frame. Both the second open ring and the first open ring are coaxially arranged with the upper turntable, and the openings of the second open ring and the first open ring are both located on the side adjacent to the push plate.

[0010] Preferably, the power assembly includes a servo motor, a gear, and a gear ring, wherein the servo motor is mounted on the frame, the gear is mounted on the output shaft of the servo motor, and the gear ring is mounted on the outer circumference of the rotating tube and meshes with the gear.

[0011] Preferably, the elastic connection assembly includes a connecting slider, a guide rod, and two springs. The connecting slider is connected to the grid, and the material box has a movable hole for the connecting slider to move. The guide rod is connected between the upper turntable and the lower turntable. The connecting slider is slidably mounted on the guide rod, and both springs are sleeved on the guide rod.

[0012] Preferably, a baffle is provided on the connecting slider, and the baffle is attached to and covers the inner wall of the material box.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. By setting up elastic connection components, the grid can vibrate up and down. When feeding materials, the vibration of the grid can spread the bolts evenly on the grid, avoiding bolt accumulation. This ensures that each bolt is fully heated during the subsequent heat treatment process, greatly improving the uniformity of heating.

[0015] 2. When the material box rotates to the unloading position, the first electric push rod drives the push plate to move. The push plate pushes open the sealing plate on the corresponding side of the material box, so that all the processed bolts inside the material box are pushed out from inside the material box, realizing the automatic unloading function.

[0016] 3. This technical solution can realize continuous automated production, and can simultaneously carry out feeding, heat treatment, cooling and automatic unloading, thus improving the work pace.

[0017] 4. The springs in the elastic connection assembly act as a buffer during the feeding process, absorbing the impact force during feeding, reducing damage to the grid caused by feeding, and extending the service life of the grid. Attached Figure Description

[0018] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Figure 4 This is a schematic diagram of the material box in this utility model.

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A.

[0022] Reference numerals: 1. Frame; 2. Upper turntable; 3. Lower turntable; 4. Material box; 401. Discharge hole; 402. Movable hole; 51. Servo motor; 52. Gear; 53. Gear ring; 6. Rotating tube; 7. First heat insulation box; 8. Second heat insulation box; 9. Fixed bracket; 10. First open ring; 11. Second open ring; 12. Fixed support; 13. First electric push rod; 14. Push plate; 15. First push frame; 16. Second push frame; 17. Connecting frame; 18. Second electric push rod; 19. Discharge plate; 20. PLC controller; 21. Grille; 22. Sealing plate; 23. Roller; 24. Baffle; 25. Connecting slider; 26. Guide rod; 27. Spring. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-5As shown in the figure, the heat treatment device for bolt manufacturing proposed in this embodiment includes a frame 1, a first heat insulation box 7, a second heat insulation box 8, a rotating device, a pushing assembly, a vibration driving assembly, and multiple material boxes 4.

[0025] A PLC controller 20 is installed on the frame 1; the rotating device includes a rotating tube 6 rotatably mounted on the frame 1, a power component for driving the rotating tube 6 to rotate, and an upper turntable 2 and a lower turntable 3 mounted on the rotating tube 6, with the upper turntable 2 located above the lower turntable 3; the power component includes a servo motor 51, a gear 52, and a gear ring 53, wherein the servo motor 51 is mounted on the frame 1, the gear 52 is mounted on the output shaft of the servo motor 51, and the gear ring 53 is mounted on the outer circumference of the rotating tube 6, and the gear ring 53 meshes with the gear 52; a fixed support 12 is provided on the frame 1, and the fixed support 12 passes through the center hole of the rotating tube 6 and the lower turntable 3.

[0026] The second heat insulation box 8 is mounted on the frame 1 and has an opening at its upper end. A fixed bracket 9 is mounted on the frame 1. The first heat insulation box 7 is mounted on the fixed bracket 9 and is located above the upper turntable 2 with an opening at its lower end. Heating devices are installed inside both the first heat insulation box 7 and the second heat insulation box 8. The heating devices use resistance heating, such as resistance wires or strips made of iron-chromium-aluminum or nickel-chromium electric heating alloys, to heat the air and workpiece inside the box through convection and radiation.

[0027] Material box 4 is installed on upper turntable 2 and lower turntable 3, and is fixedly connected to both turntable 2 and lower turntable 3, passing through both turntable 2 and lower turntable 3. Both the upper and lower ends of material box 4 are open. A grid 21 is slidably installed on the inner side of material box 4. An elastic connecting component connects the grid 21 and material box 4. The elastic connecting component includes a connecting slider 25, a guide rod 26, and two springs 27. The connecting slider 25 is connected to the grid 21. A movable hole 402 is provided on material box 4 for the connecting slider 25 to move. The guide rod 26 connects... Between the upper turntable 2 and the lower turntable 3, the connecting slider 25 is slidably mounted on the guide rod 26, and two springs 27 are both sleeved on the guide rod 26; a baffle 24 is provided on the connecting slider 25, and the baffle 24 is attached to the inner wall of the material box 4 and covers the movable hole 402. The baffle 24 is provided to prevent the bolt from getting stuck inside the movable hole 402 and also to reduce heat loss; both ends of the material box 4 are provided with discharge holes 401, and a sealing plate 22 is rotatably installed in both discharge holes 401. A roller 23 is rotatably installed at the bottom end of the sealing plate 22.

[0028] The pushing assembly includes a first electric push rod 13 and a push plate 14. The first electric push rod 13 is located between the upper turntable 2 and the lower turntable 3, and the push plate 14 is mounted on the output shaft of the first electric push rod 13. The first electric push rod 13 is mounted on a fixed support 12. Multiple material boxes 4 are arranged in a circular array above the frame 1. A discharge plate 19 is inclinedly arranged on the frame 1 in the unloading area to assist in discharging the bolts.

[0029] The vibration drive assembly includes a second electric push rod 18, a first push frame 15, and a second push frame 16. The first push frame 15 is mounted on the first heat insulation box 7. The first push frame 15 moves through the inside and outside of the first heat insulation box 7 and is connected to the output shaft of the second electric push rod 18. The second push frame 16 is located on one side of the first push frame 15. Both the first push frame 15 and the second push frame 16 are "n" shaped. A connecting frame 17 connects the first push frame 15 and the second push frame 16.

[0030] The working principle of this technical solution is as follows:

[0031] During operation, the operator puts several bolts to be heat-treated into the material box 4 in the adjacent feeding area. In order to ensure the heat treatment effect, it is necessary to ensure that the number of bolts put in each time is roughly the same. The number of bolts can be roughly determined by weighing.

[0032] Before feeding, the second electric push rod 18 is activated. The second electric push rod 18 drives the first push frame 15 and the second push frame 16 to move synchronously. Both ends of the bottom of the second push frame 16 are inserted into the material box 4 in the feeding area. At this time, the bottom ends of the second push frame 16 limit the sealing plates 22 on both sides. At the same time, by driving the second push frame 16 to move up and down, the grid 21 can move up and down reciprocally under the action of the elastic connecting component, so that the grid 21 can jump repeatedly, which makes it easier for the several bolts to be fed to spread out on the grid 21. The advantage of doing this is that it ensures the uniformity of multiple bolts in the subsequent heating process and avoids the situation that some bolts are not heated enough due to bolt accumulation.

[0033] The rotating tube 6, upper turntable 2, and lower turntable 3 are driven to rotate synchronously and intermittently by the power component, and the servo motor 51 is started to work. Through the transmission of gear 52 and gear ring 53, the rotating tube 6 is driven to rotate, so that the upper turntable 2 and lower turntable 3 rotate synchronously. When the material box 4 containing the bolts rotates between the first heat insulation box 7 and the second heat insulation box 8, it immediately stops rotating. Heating devices are installed on the inner side of the first heat insulation box 7 and the second heat insulation box 8. The heating devices generate high temperature to heat treat the bolts in the material box 4.

[0034] During the heat treatment process, the grid 21 can be driven to vibrate up and down by the first pusher 15. The purpose of this is to further improve the uniformity of the bolt heating. It should be noted that before each rotation of the rotating tube 6, the first pusher 15 and the second pusher 16 need to be moved above the upper turntable 2 to avoid affecting the rotation of the material box 4.

[0035] After the heating process is completed, the rotating tube 6 continues to rotate. At this time, the material box 4 moves to the cooling area. The operator can set up a cooling structure on the frame 1, such as a fan or a spray nozzle to spray water for cooling. The fan removes the heat from the surface of the bolt by blowing air, achieving air cooling; the spray nozzle absorbs heat through the evaporation of water, achieving the effect of water cooling.

[0036] After the cooling process is completed, the material box 4 continues to rotate to the unloading station. At this time, the first electric push rod 13 can be started. The first electric push rod 13 drives the push plate 14 to move. The push plate 14 pushes open the sealing plate 22 on the corresponding side of the material box 4. When it is pushed to the limit position, all the processed bolts inside the material box 4 are pushed out from the inside of the material box 4, realizing the automatic unloading function.

[0037] Example 2

[0038] like Figure 1 and Figure 3 As shown in the figure, the heat treatment device for bolt manufacturing proposed in this embodiment, compared with the first embodiment, has a second open ring 11 and a first open ring 10 respectively provided on the inner and outer sides between the upper turntable 2 and the lower turntable 3. The second open ring 11 is connected to the fixed support 12, and the first open ring 10 is connected to the frame 1. The second open ring 11 and the first open ring 10 are both coaxially arranged with the upper turntable 2, and the openings of the second open ring 11 and the first open ring 10 are both located on the side adjacent to the push plate 14.

[0039] In this embodiment, the second open ring 11 limits the sealing plate 22 on the side adjacent to the center of the rotating tube 6, and the first open ring 10 limits the sealing plate 22 on the outside. During the operation of the entire device, especially when the grid 21 vibrates, the sealing plate 22 is prone to large swings, which may affect the normal placement of bolts and the heat treatment process. The setting of the second open ring 11 and the first open ring 10 can effectively prevent the sealing plate 22 from swinging large swings.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heat treatment apparatus for bolt manufacturing, characterized in that, It includes a frame (1), a first heat insulation box (7), a second heat insulation box (8), a rotating device, a pushing assembly, a vibration driving assembly, and multiple material boxes (4); The rotating device includes a rotating tube (6) rotatably mounted on the frame (1), a power assembly for driving the rotating tube (6) to rotate, and an upper turntable (2) and a lower turntable (3) mounted on the rotating tube (6); multiple material boxes (4) are arranged in a circular array above the frame (1), the material boxes (4) are mounted on the upper turntable (2) and the lower turntable (3), and the material boxes (4) pass through the upper turntable (2) and the lower turntable (3); the upper and lower ends of the material boxes (4) are open, and a grid (21) is slidably arranged on the inner side of the material boxes (4), and an elastic connecting assembly is connected between the grid (21) and the material boxes (4); both ends of the material boxes (4) are provided with discharge holes (401), and a sealing plate (22) is rotatably installed in both discharge holes (401), and a roller (23) is rotatably installed at the bottom end of the sealing plate (22); the pushing assembly includes a first electric push rod (13) and a push plate (14), the first electric push rod (13) and the push plate (14) are rotatably mounted on the upper turntable (2) and the push plate (3) are rotatably mounted on the lower turntable (2) and the push plate (3) are rotatably mounted on the upper turntable (2) and the push plate (3) are rotatably mounted on the lower turntable (4); the pushing assembly includes a first electric push rod (13) and a push plate (14), the first electric push rod (13) and the push plate (14) are rotatably mounted on the upper turntable (2) and the push plate (3) are rotatably mounted on the lower turntable (4) and the push plate (3 ... The moving push rod (13) is located between the upper turntable (2) and the lower turntable (3), and the push plate (14) is installed on the output shaft of the first electric push rod (13); the second heat insulation box (8) is located on the frame (1) and has an opening at its upper end; the first heat insulation box (7) is located above the upper turntable (2) and has an opening at its lower end; heating devices are installed on the inner sides of both the first heat insulation box (7) and the second heat insulation box (8); the vibration drive assembly includes the second electric push rod (18), the first push frame (15) and the second push frame (16) installed. The first push frame (15) is located on the first heat insulation box (7), and the first push frame (15) moves through the inner and outer sides of the first heat insulation box (7) and is connected to the output shaft of the second electric push rod (18). The second push frame (16) is located on one side of the first push frame (15), and a connecting frame (17) is connected between the first push frame (15) and the second push frame (16).

2. The heat treatment apparatus for bolt manufacturing according to claim 1, characterized in that, A fixed support (12) is provided on the frame (1). The fixed support (12) passes through the center hole of the rotating tube (6) and the lower turntable (3). The first electric push rod (13) is installed on the fixed support (12).

3. The heat treatment apparatus for bolt manufacturing according to claim 2, characterized in that, A second open ring (11) and a first open ring (10) are respectively provided on the inner and outer sides between the upper turntable (2) and the lower turntable (3). The second open ring (11) is connected to the fixed support (12), and the first open ring (10) is connected to the frame (1). The second open ring (11) and the first open ring (10) are both coaxially arranged with the upper turntable (2), and the openings of the second open ring (11) and the first open ring (10) are both located on the side adjacent to the push plate (14).

4. The heat treatment apparatus for bolt manufacturing according to claim 1, characterized in that, The power assembly includes a servo motor (51), a gear (52), and a gear ring (53). The servo motor (51) is mounted on the frame (1), the gear (52) is mounted on the output shaft of the servo motor (51), and the gear ring (53) is mounted on the outer periphery of the rotating tube (6) and meshes with the gear (52).

5. The heat treatment apparatus for bolt manufacturing according to claim 1, characterized in that, The elastic connection assembly includes a connecting slider (25), a guide rod (26), and two springs (27). The connecting slider (25) is connected to the grid (21). The material box (4) has an active hole (402) for the connecting slider (25) to move. The guide rod (26) is connected between the upper turntable (2) and the lower turntable (3). The connecting slider (25) is slidably mounted on the guide rod (26). Both springs (27) are sleeved on the guide rod (26).

6. The heat treatment apparatus for bolt manufacturing according to claim 5, characterized in that, A baffle (24) is provided on the connecting slider (25), and the baffle (24) is attached to the inner wall of the material box (4) and covers the movable hole (402).

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