High-frequency quenching device of hydraulic oil cylinder body

Abstract

The utility model discloses a high-frequency quenching device of a hydraulic oil cylinder body, which relates to the technical field of hydraulic oil cylinder production, and comprises a quenching tank body, an electric cylinder and a water pump, a sealing cover is arranged right above the quenching tank body, material taking covers are symmetrically arranged at the top end of the sealing cover, the electric cylinder is arranged right above the sealing cover, and the water pump is arranged right above the electric cylinder. A positioning mechanism is arranged in the quenching tank body, the positioning mechanism positions the interiors of the multiple sets of hydraulic oil cylinder shells, then the situation that in the quenching process of the hydraulic oil cylinder shells, shells and quenched parts collide or shake is avoided, a quenching mechanism is arranged under the electric cylinder, and the quenching mechanism conducts quenching according to the quenching requirement. And the descending range is controlled. The multiple sets of copper flat pieces are arranged on the outer side of the tray to position the interior of the hydraulic oil cylinder, on the one hand, according to the specification and the size of a hydraulic oil cylinder shell, bending of the bending degrees of the copper flat pieces can be conveniently conducted manually, and the positioning flexibility of hydraulic oil cylinders of different specifications is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder production, specifically to a high-frequency quenching device for hydraulic cylinder bodies. Background Technology

[0002] The specific steps in the existing CNC hydraulic cylinder manufacturing method are: blanking—precision plastic forming of the blank—heat treatment—precision machining—quenching—rolling. The cylinder body is composed of a rectangular flange and a hollow cylinder. High-frequency induction hardening is used to harden the surface of the inner hole of the circular cylinder blank to improve the surface hardness and wear resistance of the inner wall of the cylinder.

[0003] When quenching hydraulic cylinders, due to the large production volume of hydraulic cylinders, quenching each one individually would consume a lot of manpower and materials during use. Furthermore, since they are fixed by hydraulic or electric cylinders, the process of quenching the hydraulic cylinders needs to be repeatedly adjusted, which in turn affects the efficiency of the cylinder body during the quenching process. Summary of the Invention

[0004] The purpose of this invention is to provide a high-frequency quenching device for hydraulic cylinder bodies to solve the above-mentioned defects caused by the prior art.

[0005] A high-frequency quenching device for hydraulic cylinder bodies includes a quenching tank, an electric cylinder, and a water pump. A sealing cover is provided on the top of the quenching tank, and a material-receiving cover is symmetrically provided on the top of the sealing cover. An electric cylinder is provided directly above the sealing cover. A positioning mechanism is provided inside the quenching tank. The positioning mechanism positions the interior of multiple sets of hydraulic cylinder shells, thereby preventing collisions or shaking between the cylinder shells and the quenched parts during the quenching process. A quenching mechanism is provided directly below the electric cylinder. The quenching mechanism controls the descent range according to the quenching requirements, thereby facilitating vertical quenching of cylinder shells of different specifications.

[0006] Preferably, the positioning mechanism includes a tray, a copper flat plate, a smooth rod screw, an isolation plate, positioning holes, and a nut. The copper flat plate is arranged in a ring around the outer side of the tray, the smooth rod screw is arranged at the bottom of the tray, the isolation plate is arranged below the smooth rod screw, the outer side of the isolation plate is connected to the inner wall of the quenching tank, positioning holes are evenly spaced on the outer side of the isolation plate, a nut is arranged directly below the positioning holes, and the smooth rod screw is arranged in a ring at the top of the isolation plate.

[0007] Preferably, the guide rod screw is connected to the bottom end of the isolation plate via a nut at the bottom end.

[0008] Preferably, the tray is connected to the positioning hole via a light rod screw at the bottom.

[0009] Preferably, the quenching mechanism includes an electric cylinder, a water pump, a spray plate, a sensor, and an annular support. The output end of the electric cylinder is connected to the annular support, and the sensor is distributed in a ring on the outer side of the annular support. The water pump is installed at the bottom of the isolation plate, and the output end of the water pump is connected to the bottom of the spray plate via a rigid pipe. The spray plate is positioned directly above the annular support.

[0010] Preferably, the sensor is connected to the output end of the electric cylinder via an annular support on its outer side.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. Multiple sets of copper flat plates are set on the outside of the tray to position the inside of the hydraulic cylinder. On the one hand, it is convenient to manually bend the copper flat plates according to the specifications and dimensions of the hydraulic cylinder shell, which improves the flexibility of positioning hydraulic cylinders of different specifications. On the other hand, the tray and smooth rod screws set at equal intervals vertically position the hydraulic cylinder shell, which improves the efficiency of quenching treatment for multiple sets of hydraulic cylinders.

[0013] 2. After positioning multiple sets of hydraulic cylinders, the sensors are driven by electric cylinders to move vertically downwards, and the cylinder shells are quenched in one go. At the same time, a water pump is used to directly pass the liquid through the spray plate guide groove, thereby improving the uniformity of surface cooling of the material. The cooled liquid is then recycled through the quenching tank. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of the quenching tank in this utility model.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the quenching tank in this utility model.

[0017] Figure 4 This is a top view of the isolation disc structure in this utility model.

[0018] Figure 5 This is a top view of the annular support structure in this utility model.

[0019] in:

[0020] 1. Quenching tank body; 2. Sealing cover; 3. Material handling cover; 4. Electric cylinder; 5. Positioning mechanism; 6. Tray; 7. Copper flat plate; 8. Smooth rod screw; 9. Isolation plate; 10. Positioning hole; 11. Water pump; 12. Spray plate; 13. Nut; 14. Inductor; 15. Annular support; 16. Quenching mechanism. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 5 As shown, the high-frequency quenching device for hydraulic cylinder bodies includes a quenching tank 1, an electric cylinder 4, and a water pump 11. A sealing cover 2 is provided directly above the quenching tank 1, and a material handling cover 3 is symmetrically provided at the top of the sealing cover 2. The electric cylinder 4 is provided directly above the sealing cover 2. A positioning mechanism 5 is provided inside the quenching tank 1. The positioning mechanism 5 positions the interior of multiple sets of hydraulic cylinder shells, thereby preventing the hydraulic cylinder shells from colliding or shaking with the quenched parts during the quenching process. A quenching mechanism 16 is provided directly below the electric cylinder 4. The quenching mechanism 16 controls the descent range according to the quenching requirements, thereby facilitating vertical quenching of cylinder shells of different specifications.

[0023] In this embodiment, the positioning mechanism 5 includes a tray 6, a copper flat plate 7, a smooth rod screw 8, an isolation plate 9, positioning holes 10, and a nut 13. The copper flat plate 7 is arranged in a ring around the outer side of the tray 6, the smooth rod screw 8 is arranged at the bottom end of the tray 6, the isolation plate 9 is arranged below the smooth rod screw 8, the outer side of the isolation plate 9 is connected to the inner wall of the quenching tank 1, the positioning holes 10 are evenly spaced on the outer side of the isolation plate 9, the nut 13 is arranged directly below the positioning holes 10, and the smooth rod screw 8 is arranged in a ring at the top of the isolation plate 9.

[0024] In this embodiment, the optical rod screw 8 is connected to the bottom end of the isolation plate 9 via a nut 13 at its bottom end, thereby connecting the bottom end of the optical rod screw 8 via the nut 13.

[0025] In this embodiment, the tray 6 is connected to the positioning hole 10 by a smooth rod screw 8 at the bottom, and the top of the isolation plate 9 is connected by the smooth rod screw 8, which facilitates the positioning of hydraulic cylinders of different sizes.

[0026] In this embodiment, the quenching mechanism 16 includes an electric cylinder 4, a water pump 11, a spray plate 12, a sensor 14, and an annular support 15. The output end of the electric cylinder 4 is connected to the annular support 15, and the sensor 14 is distributed in an annular pattern on the outer side of the annular support 15. The water pump 11 is installed at the bottom end of the isolation plate 9, and the output end of the water pump 11 is connected to the bottom end of the spray plate 12 by a rigid pipe. The spray plate 12 is located directly above the annular support 15, and the spray plate 12 uniformly sprays and cools the outer side of multiple sets of hydraulic cylinder housings.

[0027] In this embodiment, the sensor 14 is connected to the output end of the electric cylinder 4 via an annular support 15 on its outer side. The annular support 15 is used to position and lift multiple sets of sensors 14, which facilitates the quenching of hydraulic cylinders of different sizes.

[0028] In practical applications, this high-frequency quenching device for hydraulic cylinder bodies includes the following tasks:

[0029] Step 1: Before use, first open the sealing cover 2, then insert the smooth rod screw 8 into the positioning hole 10 so that the bottom end of the smooth rod screw 8 is connected to the outside of the nut 13. According to the diameter of the hydraulic cylinder housing, by bending the copper flat piece 7 set at the bottom end of the tray 6, the copper flat piece 7 is made to fit against the inner wall of the hydraulic cylinder housing, so that the copper flat piece 7 and the tray 6 can position the inside of the hydraulic cylinder housing and prevent it from loosening after positioning.

[0030] Step 2: The operator injects cooling water into the bottom of the quenching tank 1, then closes the sealing cover 2. The operator connects the electric cylinder 4 to the top of the annular support 15, so that the multiple sets of sensors 14 connected to the outside of the annular support 15 are positioned. The sensors 14 are parallel to the multiple sets of hydraulic cylinder housings set below. The electric cylinder 4 drives the annular support 15 and the sensors 14 to move vertically downward, so that the sensors 14 are parallel to the hydraulic cylinder housings at one end.

[0031] Step 3: Adjust the descent range of the annular support 15 and the sensor 14 by the electric cylinder 4. When the alternating current is applied to the sensor 14, an alternating magnetic field with the same frequency as the current change will be generated. The hydraulic cylinder housing is placed inside the sensor 14 and will generate an induced current with the opposite direction and the same frequency as the sensor 14 due to the magnetic field. The existence of eddy currents allows electrical energy to be efficiently converted into heat energy, thereby rapidly heating the surface of the workpiece.

[0032] Step 4: After the surface of the hydraulic cylinder housing reaches a certain temperature, the water pump 11 is turned on to extract the cooling water from the bottom of the quenching tank 1. The hydraulic cylinder housing is then sprayed with water through the spray plate 12 to cool it, ensuring that the surface layer can obtain the required martensitic structure. The sprayed liquid flows back to the bottom of the quenching tank 1 through multiple sets of positioning holes 10 on the surface of the isolation plate 9. The hydraulic cylinder housing is then separated from the tray 6 by opening the material receiving cover 3.

[0033] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A high frequency quenching device for hydraulic cylinder barrels, characterized in that: The device includes a quenching tank (1), an electric cylinder (4), and a water pump (11). A sealing cover (2) is provided on the top of the quenching tank (1). A material taking cover (3) is symmetrically provided on the top of the sealing cover (2). An electric cylinder (4) is provided on the top of the sealing cover (2). A positioning mechanism (5) is provided inside the quenching tank (1). The positioning mechanism (5) positions the interior of multiple sets of hydraulic cylinder shells, thereby preventing the hydraulic cylinder shells from colliding or shaking with the quenched parts during the quenching process. A quenching mechanism (16) is provided directly below the electric cylinder (4). The quenching mechanism (16) controls the descent range according to the quenching requirements, thereby facilitating the vertical quenching of cylinder shells of different specifications.

2. The apparatus for high frequency quenching of hydraulic cylinder bodies according to claim 1, characterized in that: The positioning mechanism (5) includes a tray (6), a copper flat plate (7), a smooth rod screw (8), an isolation plate (9), a positioning hole (10), and a nut (13). The outer side of the tray (6) is provided with a copper flat plate (7) in a ring. The bottom end of the tray (6) is provided with a smooth rod screw (8). The isolation plate (9) is provided below the smooth rod screw (8). The outer side of the isolation plate (9) is connected to the inner wall of the quenching tank (1). The outer side of the isolation plate (9) is provided with positioning holes (10) at equal intervals. The nut (13) is provided directly below the positioning hole (10). The smooth rod screw (8) is arranged in a ring at the top of the isolation plate (9).

3. The high-frequency quenching device for hydraulic cylinder bodies according to claim 2, characterized in that: The bare rod screw (8) is connected to the bottom end of the isolation plate (9) via a nut (13) at the bottom end.

4. The high-frequency quenching device for hydraulic cylinder bodies according to claim 2, characterized in that: The tray (6) is connected to the positioning hole (10) by a light rod screw (8) set at the bottom.

5. The high-frequency quenching device for hydraulic cylinder bodies according to claim 1, characterized in that: The quenching mechanism (16) includes an electric cylinder (4), a water pump (11), a spray plate (12), a sensor (14), and an annular support (15). The output end of the electric cylinder (4) is connected to the annular support (15). The sensor (14) is distributed in an annular shape on the outer side of the annular support (15). The water pump (11) is installed at the bottom of the isolation plate (9). The output end of the water pump (11) is connected to the bottom of the spray plate (12) by a hard pipe. The spray plate (12) is located directly above the annular support (15).

6. The high-frequency quenching device for hydraulic cylinder bodies according to claim 5, characterized in that: The sensor (14) is connected to the output end of the electric cylinder (4) via an annular support (15) on its outer side.

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