Rack quenching device

Abstract

The utility model provides a rack quenching device, belongs to the technical field of rack quenching, and aims to solve the problems that the contact part of a rack and a clamp is blocked by the clamp, effective quenching is difficult to realize, and the quenching efficiency of the rack is influenced. Comprising a quenching machine supporting base, a limiting electric push rod, a positioning negative pressure suction nozzle, a first supporting table, a second supporting table and a pressure sensor. The limiting electric push rods are connected to the left side and the right side of the quenching machine supporting base through bolts. The positioning negative pressure suction nozzle is fixedly connected to the inner side of a piston rod of the limiting electric push rod; the first supporting table is fixedly connected to the left side of the quenching machine supporting base; the second supporting table is fixedly connected to the right side of the quenching machine supporting base; the pressure sensor is fixedly connected to the right side of the first supporting table and the right side of the second supporting table. According to the utility model, the quenching position of the rack is not shielded, so that the quenching effect of the rack is ensured, and the quenching efficiency of the rack is improved.

Description

A rack quenching device Technical Field

[0001] This utility model belongs to the field of rack quenching technology, and more specifically, it relates to a rack quenching device. Background Technology

[0002] To improve the hardness, wear resistance, and fatigue resistance of the rack, it is necessary to quench it using an induction hardening device. During quenching, the rack is first placed inside the inductor. When an alternating current of a certain frequency is passed through the inductor, an alternating magnetic field is generated around it, causing an induced current to be generated on the surface of the rack to generate heat, thus achieving surface heating. Then, cooling water or cooling oil is quickly sprayed onto the rack through a spray head to rapidly cool the rack and achieve the purpose of quenching.

[0003] For example, CN214004727U discloses a rack quenching machine, which includes a worktable, a fixture, an induction head, and a water spray pipe. The fixture is set on the worktable and includes an electro-permanent magnet, a support plate, a positioning bar, and a clamping bar. The support plate is located above the electro-permanent magnet and is used to support the rack. The positioning bar and the clamping bar are on the support plate and are used to abut against both sides of the rack respectively. Relying on the magnetic force of the electro-permanent magnet, the bottom surface of the rack is tightly attached to the top surface of the support plate to ensure that the distance between the rack and the induction head is within a reasonable range, thereby completing the high-frequency induction quenching of the rack and ensuring the quenching quality of the rack.

[0004] Based on the above, when quenching the rack, one end of the rack needs to be fixed by a fixture to ensure the stability of the rack's movement during the quenching process. However, the part of the rack that contacts the fixture is blocked by the fixture, making it difficult to achieve effective quenching. It is necessary to change the clamping position and re-quench the blocked part, which affects the quenching efficiency of the rack. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a rack quenching device to solve the problem that the part of the rack in contact with the clamp is blocked by the clamp, making it difficult to achieve effective quenching. This necessitates changing the clamping position and re-quenching the blocked part, thus affecting the quenching efficiency of the rack.

[0006] The purpose and effect of this utility model's rack quenching device are achieved by the following specific technical means:

[0007] A rack and pinion quenching device includes a quenching machine support base, limit electric push rods, positioning negative pressure suction nozzles, a first support platform, a preheating structure, an angle adjustment structure, a second support platform, and a pressure sensor. Two limit electric push rods are provided, each bolted to the left and right sides of the quenching machine support base, with the piston rods of both limit electric push rods slidably connected to the quenching machine support base. Two positioning negative pressure suction nozzles are provided, each fixedly connected to the inner side of the piston rods of the two limit electric push rods. The first support platform is fixedly connected to the quenching machine support base. The lighter support base is located on the left side; the preheating structure is located on the upper part of the quenching machine support base; the second support platform is fixedly connected to the right side of the quenching machine support base; two pressure sensors are provided, and the two pressure sensors are respectively fixedly connected to the right side of the first support platform and the right side of the second support platform, the control circuits of the two pressure sensors are respectively connected in series with the control circuits of the two limit electric push rods, and the control circuits of the two limit electric push rods are respectively connected in series with the control circuits of the two positioning negative pressure suction nozzles; the angle adjustment structure is located on the upper part of the quenching machine support base.

[0008] Furthermore, the preheating structure includes a hot and cold circulation box and a cooling water delivery pipe; the hot and cold circulation box is fixedly connected to the inner side of the quenching machine support base; the cooling water delivery pipe is fixedly connected to the rear side of the hot and cold circulation box.

[0009] Furthermore, the preheating structure also includes a cooling water spray head and a flexible connecting pipe; the flexible connecting pipe is fixedly connected to the upper part of the cooling water delivery pipe; and the cooling water spray head is fixedly connected to the lower part of the flexible connecting pipe.

[0010] Furthermore, the preheating structure also includes a cooling water collection tank and a cooling water guide pipe; the cooling water collection tank is fixedly connected to the left side of the second support platform; the cooling water guide pipe is fixedly connected to the upper part of the second support platform; a first delivery pump is bolted to the inner side of the cooling water collection tank; the output end of the delivery pump is fixedly connected to the left end of the cooling water guide pipe; the right end of the cooling water guide pipe is fixedly connected to the hot and cold circulation box; a second delivery pump is bolted to the inside of the hot and cold circulation box; the output end of the second delivery pump is fixedly connected to the lower part of the cooling water delivery pipe.

[0011] Furthermore, the angle adjustment structure includes an angle adjustment link and a reciprocating self-locking drive component; the front end of the angle adjustment link is fixedly connected to the upper part of the cooling water spray head, and the rear end of the angle adjustment link is hinged to the upper part of the quenching machine support base; the reciprocating self-locking drive component is bolted to the upper part of the quenching machine support base.

[0012] Furthermore, the angle adjustment structure also includes a power transmission link and a swing connecting rod; the power transmission link is fixedly connected to the outside of the output shaft of the reciprocating self-locking drive; the swing connecting rod is hinged to the front side of the angle adjustment link, and the swing connecting rod is hinged to the power transmission link.

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

[0014] This invention utilizes the movement of the rack to alternately operate the positioning negative pressure suction nozzles and limiting electric push rods on both sides, ensuring that the rack is not obstructed during quenching and effectively guaranteeing the quenching effect. It avoids the need for repeated rack clamping and quenching, while also achieving automatic rack clamping, reducing operational steps, lowering the workload of workers, and improving rack loading and unloading efficiency. Preheating the rack increases its heating rate and quenching efficiency. The oscillating cooling water spray head allows cooling water to wash the rack at an inclined angle, effectively removing impurities from the rack surface and improving quenching quality. This avoids the inconvenience of subsequent rack cleaning and enhances the overall effectiveness of the quenching device. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 is a schematic diagram showing the positions of the first support platform, the second support platform, and the pressure sensor of this utility model.

[0017] Figure 3 is a schematic diagram showing the positions of the cooling water delivery pipe and the cooling water spray head of this utility model.

[0018] Figure 4 is a schematic diagram showing the positional relationship between the hot and cold circulation box and the cooling water delivery pipe of this utility model.

[0019] Figure 5 is a schematic diagram showing the connection relationship between the angle adjustment link, the power transmission link, and the swing link of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Quenching machine support base; 101. Hot and cold circulation box; 102. Cooling water guide pipe; 103. Cooling water delivery pipe; 104. Cooling water spray head; 105. Angle adjustment linkage; 106. Reciprocating self-locking drive component; 107. Power transmission linkage; 108. Swinging connecting rod; 109. Flexible connecting pipe; 2. Limiting electric push rod; 3. Positioning negative pressure suction nozzle; 4. First support platform; 5. Second support platform; 501. Cooling water collection tank; 6. Pressure sensor. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1:

[0024] As shown in Figures 1 to 4:

[0025] This utility model provides a rack and pinion quenching device, including a quenching machine support base 1, a limiting electric push rod 2, a positioning negative pressure suction nozzle 3, a first support platform 4, a preheating structure, a second support platform 5, and a pressure sensor 6; two limiting electric push rods 2 are provided, and the two limiting electric push rods 2 are respectively bolted to the left and right sides of the quenching machine support base 1, and the piston rods of the two limiting electric push rods 2 are slidably connected to the quenching machine support base 1; two positioning negative pressure suction nozzles 3 are provided, and the two positioning negative pressure suction nozzles 3 are respectively fixedly connected to the piston rods of the two limiting electric push rods 2. Inside; the first support platform 4 is fixedly connected to the left side of the quenching machine support base 1; the preheating structure is set on the upper part of the quenching machine support base 1; the second support platform 5 is fixedly connected to the right side of the quenching machine support base 1; there are two pressure sensors 6, which are fixedly connected to the right side of the first support platform 4 and the right side of the second support platform 5 respectively. The control circuits of the two pressure sensors 6 are connected in series with the control circuits of the two limit electric push rods 2, and the control circuits of the two limit electric push rods 2 are connected in series with the control circuits of the two positioning negative pressure suction nozzles 3 respectively.

[0026] The preheating structure includes a hot and cold circulation box 101 and a cooling water delivery pipe 103; the hot and cold circulation box 101 is fixedly connected to the inner side of the quenching machine support base 1; the cooling water delivery pipe 103 is fixedly connected to the rear side of the hot and cold circulation box 101.

[0027] The preheating structure also includes a cooling water spray head 104 and a flexible connecting pipe 109; the flexible connecting pipe 109 is fixedly connected to the upper part of the cooling water delivery pipe 103; and the cooling water spray head 104 is fixedly connected to the lower part of the flexible connecting pipe 109.

[0028] The preheating structure also includes a cooling water collection tank 501 and a cooling water guide pipe 102. The cooling water collection tank 501 is fixedly connected to the left side of the second support platform 5. The cooling water guide pipe 102 is fixedly connected to the upper part of the second support platform 5. A first delivery pump is bolted to the inner side of the cooling water collection tank 501. The output end of the delivery pump is fixedly connected to the left end of the cooling water guide pipe 102. The right end of the cooling water guide pipe 102 is fixedly connected to the hot and cold circulation box 101. A second delivery pump is bolted to the inside of the hot and cold circulation box 101. The output end of the second delivery pump is fixedly connected to the lower part of the cooling water delivery pipe 103.

[0029] The specific usage and function of this embodiment are as follows: When quenching the rack, the rack is first placed on the upper part of the second support platform 5. At this time, the pressure sensor 6 on the right side of the second support platform 5 sends a signal to the control circuit of the right positioning negative pressure suction nozzle 3, causing the right positioning negative pressure suction nozzle 3 to adsorb the rack and fix it. At this time, the right limit electric push rod 2 moves to push the rack to the left, so that the rack passes through the induction coil. At this time, an induced current is generated on the surface of the rack, which in turn generates heat to achieve surface heating. After heating, the rack moves to the lower part of the cooling water spray head 104. The second delivery pump delivers the cooling water in the hot and cold circulation box 101 to the cooling water spray head 104 through the cooling water delivery pipe 103 and the flexible connecting pipe 109. The cooling water is sprayed on the outside of the rack through the cooling water spray head 104, so that the rack cools down quickly and completes the quenching. After the rack end is quenched, it moves to the upper part of the first support platform 4. At this time, the first support... The pressure sensor 6 on the right side of platform 4 sends a signal to the control circuit of the left positioning negative pressure suction nozzle 3, causing the left positioning negative pressure suction nozzle 3 to adsorb the rack and fix it. At this time, the left limit electric push rod 2 moves to pull the rack to the left. The right side of the rack passes the pressure sensor 6 on the right side of the second support platform 5. At this time, the pressure sensor 6 on the right side of the second support platform 5 is no longer under pressure. The right positioning negative pressure suction nozzle 3 and the limit electric push rod 2 stop working. After the rack quenching is completed, the rack will pass the pressure sensor 6 on the right side of the first support platform 4. At this time, the left positioning negative pressure suction nozzle 3 and the left limit electric push rod 2 stop working, and the rack can be directly removed. After the cooling water falls from the rack into the cooling water collection tank 501, the first delivery pump delivers the cooling water in the cooling water collection tank 501 to the cooling water guide pipe 102. At this time, the cooling water carrying heat will preheat the rack located inside the cooling water guide pipe 102.

[0030] Example 2:

[0031] As shown in Figures 3 to 5:

[0032] Based on Embodiment 1, an angle adjustment structure is also included; the angle adjustment structure is set on the upper part of the quenching machine support base 1.

[0033] The angle adjustment structure includes an angle adjustment link 105 and a reciprocating self-locking drive component 106. The front end of the angle adjustment link 105 is fixedly connected to the upper part of the cooling water spray head 104, and the rear end of the angle adjustment link 105 is hinged to the upper part of the quenching machine support base 1. The reciprocating self-locking drive component 106 is bolted to the upper part of the quenching machine support base 1.

[0034] The angle adjustment structure also includes a power transmission link 107 and a swing connection link 108; the power transmission link 107 is fixedly connected to the outside of the output shaft of the reciprocating self-locking drive 106; the swing connection link 108 is hinged to the front side of the angle adjustment link 105, and the swing connection link 108 is hinged to the power transmission link 107.

[0035] The specific usage and function of this embodiment are as follows: During the rack cooling process, the reciprocating self-locking drive 106 is activated, causing the power transmission link 107 to rotate with the output shaft of the reciprocating self-locking drive 106. When the power transmission link 107 rotates, it will drive the swing connecting rod 108 to swing. When the swing connecting rod 108 swings, it will pull the angle adjustment link 105 to swing. When the angle adjustment link 105 swings, it will drive the cooling water spray head 104 to swing, so that the cooling water will wash the rack at an inclined angle and wash away the impurities generated by quenching from the rack.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0038] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0039] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A rack and pinion quenching device, comprising a quenching machine support base (1), a limiting electric push rod (2), a positioning negative pressure suction nozzle (3), a first support platform (4), a preheating structure, an angle adjustment structure, a second support platform (5), and a pressure sensor (6); wherein two limiting electric push rods (2) are provided, and the two limiting electric push rods (2) are respectively bolted to the left and right sides of the quenching machine support base (1), and the piston rods of the two limiting electric push rods (2) are slidably connected to the quenching machine support base (1); characterized in that: Two positioning negative pressure suction nozzles (3) are provided, and the two positioning negative pressure suction nozzles (3) are respectively fixedly connected to the inner side of the piston rod of the two limiting electric push rods (2); the first support platform (4) is fixedly connected to the left side of the quenching machine support base (1); the preheating structure is provided on the upper part of the quenching machine support base (1); the second support platform (5) is fixedly connected to the right side of the quenching machine support base (1); two pressure sensors (6) are provided, and the two pressure sensors (6) are respectively fixedly connected to the right side of the first support platform (4) and the right side of the second support platform (5), the control circuits of the two pressure sensors (6) are respectively connected in series with the control circuits of the two limiting electric push rods (2), and the control circuits of the two limiting electric push rods (2) are respectively connected in series with the control circuits of the two positioning negative pressure suction nozzles (3); the angle adjustment structure is provided on the upper part of the quenching machine support base (1).

2. The rack quenching device as described in claim 1, characterized in that: The preheating structure includes a hot and cold circulation box (101) and a cooling water delivery pipe (103); the hot and cold circulation box (101) is fixedly connected to the inner side of the quenching machine support base (1); the cooling water delivery pipe (103) is fixedly connected to the rear side of the hot and cold circulation box (101).

3. The rack hardening apparatus of claim 2 wherein: The preheating structure also includes a cooling water spray head (104) and a flexible connecting pipe (109); the flexible connecting pipe (109) is fixedly connected to the upper part of the cooling water delivery pipe (103); the cooling water spray head (104) is fixedly connected to the lower part of the flexible connecting pipe (109).

4. The rack quenching device as described in claim 3, characterized in that: The preheating structure also includes a cooling water collection tank (501) and a cooling water guide pipe (102); the cooling water collection tank (501) is fixedly connected to the left side of the second support platform (5); the cooling water guide pipe (102) is fixedly connected to the upper part of the second support platform (5); a first delivery pump is bolted to the inner side of the cooling water collection tank (501); the output end of the delivery pump is fixedly connected to the left end of the cooling water guide pipe (102); the right end of the cooling water guide pipe (102) is fixedly connected to the hot and cold circulation box (101); a second delivery pump is bolted to the inside of the hot and cold circulation box (101); the output end of the second delivery pump is fixedly connected to the lower part of the cooling water delivery pipe (103).

5. The rack quenching device as described in claim 3, characterized in that: The angle adjustment structure includes an angle adjustment link (105) and a reciprocating self-locking drive (106); the front end of the angle adjustment link (105) is fixedly connected to the upper part of the cooling water spray head (104), and the rear end of the angle adjustment link (105) is hinged to the upper part of the quenching machine support base (1); the reciprocating self-locking drive (106) is bolted to the upper part of the quenching machine support base (1).

6. The rack quenching device as described in claim 5, characterized in that: The angle adjustment structure also includes a power transmission link (107) and a swing link (108); the power transmission link (107) is fixedly connected to the outside of the output shaft of the reciprocating self-locking drive (106); the swing link (108) is hinged to the front side of the angle adjustment link (105), and the swing link (108) is hinged to the power transmission link (107).

Images