Heat treatment device for centerless grinding wheel

Abstract

The utility model relates to a heat treatment device for a centerless grinding wheel, which effectively solves the problems that a worker needs to be in close contact with high-temperature equipment and a hot grinding wheel, is extremely easy to suffer from injury such as high-temperature scald and burn when an effective protection measure is lacked or operation is slightly careless, and the personal safety and health of the worker are easily threatened. The problems that the grinding wheel is relatively fragile in texture in a high-temperature state, absolute stability and accuracy of actions are difficult to ensure by manual operation, and the grinding wheel often accidentally falls off and collides with surrounding objects are solved in the prior art. According to the heat treatment device for the centerless grinding wheel, through matched arrangement of the limiting base and the supporting rod, the surface of the supporting rod can be sleeved with the centerless grinding wheel, then the installation difficulty of workers for the centerless grinding wheel is reduced, and through matched arrangement of the positioning base and the induction coil, when the centerless grinding wheel is covered with the centerless grinding wheel, the centerless grinding wheel can be fixed. The centerless grinding wheel can be directly heated by means of induced current.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat treatment, specifically relates to a centerless grinding wheel heat treatment device. BACKGROUND

[0002] In the field of mechanical processing, the centerless grinding wheel is a very key grinding tool, and its performance is directly related to the precision, efficiency of grinding processing and the service life of the grinding wheel itself. With the continuous rise of the processing precision and quality standards of parts in modern manufacturing industry, the quality requirements for the centerless grinding wheel are becoming increasingly stringent.

[0003] The existing heat treatment methods for the centerless grinding wheel mainly include quenching and tempering. In quenching, the grinding wheel is heated to a certain temperature, usually higher than its critical temperature, and then rapidly cooled, which can be achieved by immersing the grinding wheel in water, oil or other suitable cooling medium. The purpose of quenching is to make the grinding wheel obtain high hardness and wear resistance. However, the current quenching equipment and process have many drawbacks. In the heating link, workers generally need to manually hold tools to place the grinding wheel inside the quenching furnace or induction coil. In this process, workers need to closely contact high-temperature equipment and hot grinding wheels. In the absence of effective protective measures or with slight negligence, workers are extremely vulnerable to high-temperature burns, scalds and other injuries, which can easily threaten the personal safety and health of workers. After the grinding wheel is heated to the predetermined degree in the quenching furnace, workers need to manually transfer it to the cooling medium. This transfer process is also risky. Since the grinding wheel is relatively fragile in a high-temperature state, and manual operation cannot ensure absolute stability and precision of actions, the grinding wheel often accidentally falls or collides with surrounding objects. Once falling or colliding occurs, the grinding wheel may have defects such as breakage and cracking, which directly leads to product scrap. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a centerless grinding wheel heat treatment device. The centerless grinding wheel heat treatment device is provided with a positioning seat and an induction coil, which can inductively heat the centerless grinding wheel, and after heating is completed, the grinding wheel can be directly detached from the outside of the grinding wheel. The grinding wheel is directly dropped into the storage box by the retraction of the supporting rod, and then the grinding wheel is quickly cooled by the cooling medium in the storage box, thereby completing the quenching operation.

[0005] The application discloses a centerless grinding wheel heat treatment device, which comprises a storage box, a fixed seat is fixedly arranged on one side of the top of the storage box, drainage pipes are inserted into the outer surfaces of the two sides of the fixed seat, a water pump is fixedly arranged at the end of the drainage pipe, a limiting seat is detachably connected to the inner side wall of the fixed seat, guide rods are fixedly connected to the outer walls of the two sides of the limiting seat, a main hydraulic rod is fixedly arranged at the end of the limiting seat, a support rod is threadedly connected to the output end of the main hydraulic rod, a positioning seat is slidably connected to the outer surface of the guide rod, and an induction coil is fixedly arranged on the inner side wall of the positioning seat.

[0006] Preferably, a liquid discharge port is inserted into the outer surface of the storage box, and a sealing cover is threadedly connected to the outer surface of the liquid discharge port.

[0007] Preferably, a plurality of fixed bolts are threadedly arranged on the outer surface of the fixed seat, one end of the fixed bolt is tightly arranged on the outer wall of the limiting seat, and the limiting seat is tightly connected to the inner wall of the fixed seat.

[0008] Preferably, a baffle is detachably connected to the outer wall of the positioning seat, and a transparent plate is fixedly arranged on the middle portion of the outer surface of the baffle.

[0009] Preferably, connecting bolts are threadedly arranged on the four corners of the outer surface of the baffle, and one end of the connecting bolt is threadedly connected to the outer wall of the positioning seat.

[0010] Preferably, a limiting ring is fixedly arranged on the outer surface of the guide rod, and a partition plate is detachably connected to the end of the outer surface of the guide rod.

[0011] Preferably, a limiting bolt is threadedly connected to one end of the guide rod, and the end of the limiting bolt is tightly arranged on the outer wall of the partition plate.

[0012] Preferably, a secondary hydraulic rod is fixedly arranged on the outer surface of the partition plate, and one end of the output end of the secondary hydraulic rod is fixedly connected to the outer wall of the baffle.

[0013] The above technical scheme has the following beneficial effects:

[0014] The centerless grinding wheel heat treatment device, through the cooperation of the limiting seat and the supporting rod, can sleeve the centerless grinding wheel on the surface of the supporting rod, thereby reducing the installation difficulty of the centerless grinding wheel for the workers, and the cooperation of the limiting seat and the induction coil can directly heat the centerless grinding wheel by means of the induced current when covering the outside of the centerless grinding wheel, and after heating is completed, the limiting seat can directly drive the induction coil to separate from the centerless grinding wheel, thereby ensuring the accuracy of the heating temperature of the centerless grinding wheel, and when the supporting rod is driven to retract by the main hydraulic rod, the centerless grinding wheel can be directly dropped downward, thereby directly falling into the cooling medium in the storage box, so that the intervention operation of the workers can be greatly reduced, thereby improving the safety and practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole installation structure schematic view of the utility model;

[0016] Fig. 2 It is a storage box installation structure schematic view of the utility model;

[0017] Fig. 3 It is a limiting seat closed state schematic view of the utility model;

[0018] Fig. 4 It is a limiting seat open state schematic view of the utility model;

[0019] Fig. 5 It is a limiting seat explosion structure schematic view of the utility model.

[0020] In the drawing: 1, storage box; 2, fixed seat; 3, drainage port; 4, sealing cover; 5, drainage tube; 6, water pump; 7, limiting seat; 8, fixed bolt; 9, guide rod; 10, main hydraulic rod; 11, supporting rod; 12, limiting seat; 13, induction coil; 14, baffle; 15, connecting bolt; 16, transparent plate; 17, limiting ring; 18, partition; 19, limiting bolt; 20, auxiliary hydraulic rod. DETAILED DESCRIPTION

[0021] The foregoing and other technical contents, features and effects of the utility model are described in the following with reference to the accompanying drawings. Figs. 1 to 5 The embodiment is described in detail.

[0022] The embodiment provides a centerless grinding wheel heat treatment device, as shown in the drawing, which comprises a storage box 1, a fixed seat 2 is fixedly installed on one side of the top of the storage box 1, a drainage port 3 is inserted into the outer surface of the storage box 1, a sealing cover 4 is threadedly connected to the outer surface of the drainage port 3, drainage tubes 5 are inserted into the outer surfaces of both sides of the fixed seat 2, a water pump 6 is fixedly installed at the end of the drainage tube 5, the fixed seat 2 is arranged to enable the limiting seat 7 to be installed and fixed, the storage box 1 can directly store cooling medium below the limiting seat 7, and then the centerless grinding wheel can directly fall into the storage box 1 after being heated, so that the staff is not required to participate in taking out the cooling, thereby reducing the damage caused by the mistake, and the safety of the staff can be ensured, the drainage port 3 and the sealing cover 4 are arranged in cooperation to facilitate the staff to pour out the cooling medium, the drainage tube 5 and the water pump 6 are arranged in cooperation to enable the cooling medium to be pumped out from one side and fed from the other side, so that the flow of the cooling medium is ensured, the temperature uniformity of the cooling medium in the storage box 1 is ensured, the centerless grinding wheel is uniformly cooled, and the quenching effect is improved.

[0023] The inner side wall of the fixed seat 2 is detachably connected with the limiting seat 7, a plurality of fixed bolts 8 are threadedly arranged on the outer surface of the fixed seat 2, one end of the fixed bolt 8 is inserted into the fixed seat 2 and abuts against the outer wall of the limiting seat 7, so that the limiting seat 7 is tightly connected to the inner wall of the fixed seat 2, the limiting seat 7 is directly fixed by means of the fixed seat 2, the fixed bolt 8 ensures the fixing stability of the limiting seat 7 to the fixed seat 2, and the fixed bolt 8 further improves the connection stability between the limiting seat 7 and the fixed seat 2.

[0024] The two sides of the outer wall of the limit seat 7 are fixedly connected with a guide rod 9, the end of the limit seat 7 is fixedly installed with a main hydraulic rod 10, the output end of the main hydraulic rod 10 is threadedly connected to the support rod 11, the outer surface of the guide rod 9 is slidably connected to the positioning seat 12, the inner side wall of the positioning seat 12 is fixedly installed with an induction coil 13, the outer wall of the positioning seat 12 is detachably connected to a baffle 14, the middle part of the outer surface of the baffle 14 is fixedly connected to a transparent plate 16, and the four corners of the outer surface of the baffle 14 are threaded with connecting bolts 1 5. One end of the connecting bolt 15 passes through the baffle 14 and is threadedly connected to the outer wall of the positioning seat 12. Through the setting of the main hydraulic rod 10, the support rod 11 can be driven to extend or retract, and then the support rod 11 is sent to one side of the limit seat 7, which can support and position the centerless grinding wheel to ensure the stability of the centerless grinding wheel during the heating process. Through the coordinated setting of the positioning seat 12 and the induction coil 13, the fixed centerless grinding wheel can be induction heated, thereby heating the centerless grinding wheel. When the centerless grinding wheel reaches a suitable temperature, and the heating is completed, the positioning seat 12 can slide along the guide rod 9 and detach from the outer side of the centerless grinding wheel. The main hydraulic rod 10 retracts the support rod 11, so that the support rod 11 can fall off from the middle of the centerless grinding wheel, and then the centerless grinding wheel falls into the cooling medium below. The staff only needs to take out the cooled centerless grinding wheel. Through the setting of the induction coil 13, when the alternating current passes through the induction coil 13, an alternating magnetic field will be generated around it. When the centerless grinding wheel is placed in the magnetic field, an induced current will be generated inside the centerless grinding wheel. Since the centerless grinding wheel itself has resistance, according to Joule's law, heat will be generated when the current passes through, thereby achieving heating. The high-frequency induction heating frequency is relatively high, generally 100kHz-500kHz, which can achieve rapid surface heating. The baffle 14 and the transparent plate 16 are arranged in conjunction with each other to protect the outer side of the positioning seat 12. At the same time, it is convenient to observe the heating condition of the centerless grinding wheel, which is convenient for the staff to operate.

[0025] The outer surface of the guide rod 9 is fixedly connected to a limiting ring 17, and the end of the outer surface of the guide rod 9 is detachably connected to a partition 18. One end of the guide rod 9 passing through the partition 18 is threadedly connected to a limiting bolt 19, and the end of the limiting bolt 19 is pressed against the outer wall of the partition 18. Auxiliary hydraulic rods 20 are fixedly installed on both sides of the outer surface of the partition 18. The output end of the auxiliary hydraulic rod 20 passes through one end of the partition 18 and is fixedly connected to the outer wall of the baffle 14. Through the setting of the limiting ring 17, it can cooperate with the limiting bolt 19 to install and fix the partition 18, thereby ensuring the installation stability of the auxiliary hydraulic rod 20. Then, with the help of the extension and shortening of the output end of the auxiliary hydraulic rod 20, the positioning seat 12 can be effectively slid and adjusted to move the induction coil 13 to the surface of the centerless grinding wheel or to separate the induction coil 13 from the surface of the centerless grinding wheel.

[0026] In summary, the steps for using the centerless grinding wheel heat treatment device are as follows:

[0027] 1、Firstly, the cooling medium is poured into the storage tank 1, the water pump 6 is started, the cooling medium is circulated, and then the auxiliary hydraulic rod 20 is retracted, and the positioning seat 12 is separated from the surface of the limiting seat 7;

[0028] 2, Then the staff can install the centerless grinding wheel on the surface of the supporting rod 11, and then extend the hydraulic rod 20, and then cover the positioning seat 12 on the outside of the centerless grinding wheel, start the induction coil 13, heat the centerless grinding wheel, and then close the induction coil 13;

[0029] 3, Retract the auxiliary hydraulic rod 20, separate the positioning seat 12 from the surface of the limiting seat 7, retract the main hydraulic rod 10, pull out the supporting rod 11 from the centerless grinding wheel, make the centerless grinding wheel fall into the cooling medium, and the staff can take out the centerless grinding wheel after cooling;

[0030] 4, Extend the main hydraulic rod 10 again, extend the supporting rod 11 again, and the staff can install the centerless grinding wheel on the surface of the supporting rod 11, and then reheat the centerless grinding wheel.

[0031] The above is only for the purpose of illustrating the present application, and it should be understood that the present application is not limited to the above embodiments, and various modifications in accordance with the present application are within the scope of the present application.

Claims

1. A centerless grinding wheel heat treatment apparatus comprising a storage tank (1), characterized in that: The side of top of storage box (1) is fixedly installed with fixed seat (2), both sides of outer surface of fixed seat (2) are inserted with drainage tube (5), end of drainage tube (5) is fixedly installed with water pump (6), inner side wall of fixed seat (2) is detachably connected with limiting seat (7), both sides of outer wall of limiting seat (7) are fixedly connected with guide rod (9), end of limiting seat (7) is fixedly installed with main hydraulic rod (10), output end of main hydraulic rod (10) is threadedly connected with support rod (11), outer surface of guide rod (9) is slidably connected with positioning seat (12), inner side wall of positioning seat (12) is fixedly installed with induction coil (13).

2. The heat treating apparatus for centerless grinding wheels of claim 1, wherein: The outer surface of the storage box (1) is inserted with a drainage port (3), and the outer surface of the drainage port (3) is threadedly connected with a sealing cover (4).

3. The heat treating apparatus for centerless grinding wheels of claim 1, wherein: The outer surface of the fixed seat (2) is threadedly provided with a plurality of fixed bolts (8), one end of the fixed bolt (8) penetrating into the fixed seat (2) abuts against the outer wall of the limiting seat (7), so that the limiting seat (7) is tightly connected to the inner wall of the fixed seat (2).

4. The heat treating apparatus for centerless grinding wheels of claim 1 wherein: The outer wall of the positioning seat (12) is detachably connected with a baffle (14), and the outer surface of the baffle (14) is fixedly connected with a transparent plate (16) in the middle.

5. The heat treating apparatus for centerless grinding wheels of claim 4 wherein: The outer surface of the baffle (14) is threadedly provided with a connecting bolt (15) at the four corners, one end of the connecting bolt (15) penetrating out of the baffle (14) is threadedly connected with the outer wall of the positioning seat (12).

6. The heat treating apparatus for a centerless grinding wheel of claim 5 wherein: The outer surface of the guide rod (9) is fixedly connected with a limiting ring (17), and the end of the outer surface of the guide rod (9) is detachably connected with a partition plate (18).

7. The heat treating apparatus for a centerless grinding wheel of claim 6 wherein: One end of the guide rod (9) penetrating out of the partition plate (18) is threadedly connected with a limiting bolt (19), and the end of the limiting bolt (19) abuts against the outer wall of the partition plate (18).

8. The heat treating apparatus for a centerless grinding wheel of claim 7, wherein: The outer surface of the partition plate (18) is fixedly installed with a secondary hydraulic rod (20) on both sides, and one end of the output end of the secondary hydraulic rod (20) penetrating out of the partition plate (18) is fixedly connected with the outer wall of the baffle (14).

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