A quenching device for metal heat treatment

Abstract

The present invention discloses a quenching device for metal heat treatment, which belongs to the technical field of metal quenching, and comprises a quenching treatment table, a mounting chamber is arranged on the quenching treatment table, a laser quenching device is arranged on the mounting chamber, a water storage chamber is arranged inside the mounting chamber, a water circulation component is arranged in the water storage chamber, a heat-insulating cooling semi-ring body connected to the water circulation component is arranged on one side of the mounting chamber, a quenching pretreatment device is arranged on the heat-insulating cooling semi-ring body, a quenching position opening is opened on the heat-insulating cooling semi-ring body, and a wave water-absorbing cotton layer is arranged in the quenching position opening. The present invention adjusts the interference component to control the arc-shaped interference seat to fix the gear ring, and drives the gear ring to rotate slowly to perform horizontal rotation quenching, and the cooling circulating water arranged at the quenching position opening is used to isolate the heat of the laser quenching part, thereby avoiding heat transfer to the holes of the gear ring body, and avoiding the situation that the metal in the hole is thermally denatured.

Description

Technical Field

[0001] The present invention relates to the technical field of metal quenching, and particularly relates to a quenching device for metal heat treatment. Background Art

[0002] Laser quenching is a quenching technology that uses a laser to heat the surface of a material above the phase transformation point. As the material cools itself, austenite transforms into martensite, thereby hardening the surface of the material.

[0003] Laser quenching is often used in the quenching process of gears. When laser quenching the tooth surface, its heating and cooling speeds are very fast, the process cycle is short, and no external quenching medium is required. It has the advantages of small workpiece deformation, clean working environment, and no need for finishing such as gear grinding after treatment.

[0004] The gear ring is a common type of gear, which is drilled with holes for the installation of the gear ring. For some gear rings with limited dimensions, the hole positions are very close to the tooth positions. When quenching, in order to avoid quenching the hole positions, which may increase their strength and reduce plasticity, affecting their connection fastening performance, laser is often used to quench the tooth surface. The current laser quenching methods include vertical quenching of each tooth one by one and horizontal rotational quenching. When performing vertical laser quenching on each tooth of the gear one by one, the tooth will be under laser heating for a long time, and some holes near the tooth will be heated by the conducted temperature, affecting the connection fastening performance of the holes; during horizontal rotational quenching, during the uniform rotation process, the contact time between the tooth and the tooth groove is the same, and the tooth groove will also be heated for a long time, which will also cause changes in the metal properties of the hole position. Moreover, the heating of the tooth groove of the gear will cause the tooth root to be quenched, affecting the plasticity of the tooth root, resulting in the extremely easy breakage of the quenched tooth, affecting the quality. Based on this, a quenching device for metal heat treatment is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art that when performing vertical laser quenching on each tooth of a gear one by one, the tooth will be under laser heating for a long time, and some holes near the tooth will be heated by the conducted temperature, affecting the connection fastening performance of the holes; during horizontal rotational quenching, during the uniform rotation process, the contact time between the tooth and the tooth groove is the same, and the tooth groove will also be heated for a long time, which will also cause changes in the metal properties of the hole position, and to propose a quenching device for metal heat treatment.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A quenching device for metal heat treatment, comprising a quenching treatment table, an installation chamber is arranged on the quenching treatment table, a laser quenching device is arranged on the installation chamber, a water storage cavity is arranged inside the installation chamber, a water circulation component is arranged in the water storage cavity, a heat-insulating cooling semi-ring body connected to the water circulation component is arranged on one side of the installation chamber, a quenching pretreatment device is arranged on the heat-insulating cooling semi-ring body, a quenching position opening is arranged on the heat-insulating cooling semi-ring body, a wave-shaped water-absorbing cotton layer is arranged in the quenching position opening, and a partition component is arranged at the quenching position opening;

[0008] A driving table is arranged on the quenching treatment table, a driving main motor is arranged inside the driving table, a rotating disk is rotatably connected above the driving table, a blocking part is arranged on the outer side wall of the rotating disk, the rotating disk is connected with a plurality of arc-shaped abutting seats through a telescopic part, and the driving main motor controls the movement of the arc-shaped abutting seats through an adjusting abutting component;

[0009] The partition component includes a partition disk driven by a driving component, and a plurality of partition plates are uniformly arranged on the outer side wall of the partition disk.

[0010] Preferably, the water circulation component includes a water delivery cavity opened in the water storage cavity, a turbine disk is arranged in the water delivery cavity, a cooling pipe layer communicated with the water storage cavity is arranged on one side of the installation chamber, the inside of the heat-insulating cooling semi-ring body is hollow, and both ends of the heat-insulating cooling semi-ring body are communicated with the water delivery cavity and the cooling pipe layer respectively.

[0011] Preferably, the quenching pretreatment device includes a high-frequency vibrator arranged on the quenching treatment table, connecting supports are arranged on the side walls of the heat-insulating cooling semi-ring body on both sides of the quenching position opening, a cleaning disk is connected to the connecting supports through vertical shafts, cleaning tooth parts are arranged on the outer side wall of the cleaning disk, and the output end of the high-frequency vibrator is connected to the vertical shaft.

[0012] Preferably, the blocking part includes a clamping ring fixedly arranged on the driving table, and a telescopic clamping block adapted to the clamping ring is movably arranged on the outer side wall of the rotating disk.

[0013] Preferably, the telescopic part includes a telescopic cover body fixedly arranged on the outer side wall of the rotating disk, the arc-shaped abutting seat is fixedly connected with a telescopic rod, and the end part of the telescopic rod is inside the telescopic cover body.

[0014] Preferably, the adjusting abutting component includes a vertical lead screw extending upward from the output end of the driving main motor and fixedly connected thereto, the vertical lead screw is connected with an adjusting disk through a lead screw nut ring, a resisting adjusting rod is rotatably connected to the outer side wall of the adjusting disk, and a U-shaped connecting block rotatably connected with the resisting adjusting rod is arranged on the back of the arc-shaped abutting seat.

[0015] Preferably, the drive assembly includes a constant speed motor arranged in the drive platform, the output end of the constant speed motor is fixedly connected to a transverse drive shaft, the outer wall of the transverse drive shaft extends outward through the water delivery cavity and is fixedly connected to the baffle plate, and the turbine plate is fixedly connected to the outer wall of the transverse drive shaft.

[0016] Preferably, the arc-shaped abutment seat is arranged in an "L" shape, and a rubber layer for increasing friction is arranged on the surface of the arc-shaped abutment seat.

[0017] Preferably, the baffle plate is provided with a coating for refracting laser light.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The laser quenching equipment proposed in the present invention, when quenching the gear ring, fixes the gear ring by adjusting the interference assembly to control the arc-shaped interference seat, and drives the gear ring to slowly rotate for lateral rotation quenching. The cooling circulating water arranged at the quenching position is used to isolate the heat of the laser quenching part, thereby preventing heat from being transferred to the holes of the gear ring body, and preventing the metal in the holes from being thermally denatured.

[0020] 2. The present invention provides a baffle plate and a baffle plate at the straight position between the laser quenching device and the quenching position. The baffle plate rotates to drive the baffle plate to intermittently block and refract the laser, so that the laser cannot be quenched when the gear rotates to the tooth groove, and only quenches the tooth. While ensuring the improvement of the tooth hardness and wear resistance, it can also avoid the increase of the hardness of the tooth root due to the quenching of the tooth groove, resulting in easy breakage, thereby significantly improving the quenching quality of the gear ring.

[0021] 3. The present invention provides quenching pretreatment devices on both sides of the quenching position, and drives the cleaning disk to rotate by rotating the gear ring, so that the cleaning tooth parts thereon come into contact with the teeth to be quenched and after quenching, which can effectively realize vibration cleaning of the quenching part, ensure the clean surface of the quenching part, and improve the quenching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a quenching device for metal heat treatment proposed by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 This is a schematic diagram of the assembly structure of an installation chamber in a quenching device for metal heat treatment proposed by the present invention;

[0025] Figure 4Schematic three-dimensional structure diagram of the installation chamber in a quenching device for metal heat treatment proposed by the present invention;

[0026] Figure 5 Schematic structure diagram of the driving platform in a quenching device for metal heat treatment proposed by the present invention;

[0027] Figure 6 Schematic internal structure diagram of the installation chamber in a quenching device for metal heat treatment proposed by the present invention.

[0028] In the figure: 1, quenching treatment table; 2, installation chamber; 3, laser quenching device; 4, water storage cavity; 5, heat insulation and cooling semi-ring body; 6, quenching position opening; 7, driving platform; 8, driving main motor; 9, rotating disk; 10, water delivery cavity; 11, arc-shaped contact seat; 12, partition disk; 13, partition board; 14, turbine disk; 15, cooling pipe layer; 16, high-frequency vibrator; 17, connecting support; 18, cleaning disk; 19, cleaning tooth parts; 20, snap ring; 21, telescopic clamping block; 22, telescopic cover body; 23, U-shaped connecting block; 24, vertical lead screw; 25, adjusting disk; 26, contact adjusting rod; 27, constant speed motor; 28, transverse driving shaft. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example, refer to Figures 1 to 6 , a quenching device for metal heat treatment, including a quenching treatment table 1, an installation chamber 2 is provided on the quenching treatment table 1, a laser quenching device 3 is provided on the installation chamber 2, and the laser quenching device 3 is prior art and will not be elaborated in detail here. A water storage cavity 4 is arranged inside the installation chamber 2, and a water circulation component is arranged in the water storage cavity 4;

[0033] Furthermore, the water circulation component includes a water delivery cavity 10 opened in the water storage cavity 4, a turbine disk 14 is arranged in the water delivery cavity 10. When the turbine disk 14 rotates, it will generate power for the cooling water in the water storage cavity 4, thereby circulating the cooling water;

[0034] On one side of the installation chamber 2, a cooling tube layer 15 communicated with the water storage cavity 4 is provided. The cooling tube layer 15 is distributed in an "S" shape and is in direct contact with the outside, which can achieve an effective heat dissipation effect. The inside of the heat insulation and cooling semi-ring body 5 is hollow, and its two ends are respectively communicated with the water delivery cavity 10 and the cooling tube layer 15.

[0035] On one side of the installation chamber 2, a heat insulation and cooling semi-ring body 5 connected to the water circulation component is provided, and a quenching pretreatment device is provided on the heat insulation and cooling semi-ring body 5;

[0036] Furthermore, the quenching pretreatment device includes a high-frequency vibrator 16 arranged on the quenching treatment table 1. The high-frequency vibrator 16 is prior art and will not be elaborated in detail here. Connection supports 17 are arranged on the side walls of the heat insulation and cooling semi-ring body 5 on both sides of the quenching position opening 6. The connection supports 17 are connected with a cleaning disk 18 through a vertical shaft. Cleaning tooth parts 19 are arranged on the outer side wall of the cleaning disk 18, and the output end of the high-frequency vibrator 16 is connected with the vertical shaft.

[0037] Among them, the cleaning tooth parts 19 arranged on the cleaning disk 18 are meshed with the gear ring to be quenched. When the cleaning tooth parts 19 on it contact the teeth of the gear ring to be quenched, it can effectively clean the teeth.

[0038] It should be noted that quenching pretreatment devices are provided on both sides of the quenching position opening 6. When the gear ring to be quenched rotates clockwise during quenching, the first quenching pretreatment device it contacts plays a role in vibrating and cleaning the teeth of the gear ring to be quenched, so as to ensure the cleanliness of the quenching position during quenching.

[0039] The second quenching pretreatment device that contacts the gear after quenching can effectively clean the impurities on the quenched tooth part of the gear after quenching, thereby achieving the effect of quenching slag removal.

[0040] A quenching position opening 6 is provided on the heat-insulating cooling semi-ring body 5, and a wave absorbent cotton layer is provided in the quenching position opening 6. The height of the wave absorbent cotton layer is higher than the quenching position opening 6, which can ensure that when the gear ring to be quenched is at the quenching position opening 6, the wave absorbent cotton layer can fully contact with the bottom of the gear ring to be quenched, so as to achieve effective heat dissipation of the contact part of the gear ring to be quenched. A baffle assembly is provided at the quenching position opening 6;

[0041] A driving platform 7 is arranged on the quenching treatment table 1, and a driving main motor 8 is arranged inside the driving platform 7. A rotating disk 9 is rotatably connected above the driving platform 7, and a blocking member is arranged on the outer wall of the rotating disk 9. Further, the blocking member includes a clamping ring 20 fixedly arranged on the driving platform 7, and a telescopic clamping block 21 adapted to the clamping ring 20 is movably arranged on the outer wall of the rotating disk 9.

[0042] The setting of the blocking member is designed to meet the need to fix the hardened gear ring by adjusting the interference assembly. When the blocking member is opened, the rotating disk 9 cannot rotate, thereby limiting the rotation of the interference adjustment rod 26 connected thereto, and ensuring that the adjustment disk 25 moves up and down when the vertical screw 24 rotates.

[0043] The rotating disk 9 is connected to a plurality of arc-shaped abutment seats 11 through telescopic parts. The arc-shaped abutment seats 11 are arranged in an "L" shape, and a rubber layer for increasing friction is arranged on the surface of the arc-shaped abutment seats 11.

[0044] Furthermore, the telescopic member includes a telescopic cover body 22 fixedly arranged on the outer side wall of the rotating disk 9 , and the arc-shaped abutment seat 11 is fixedly connected with a telescopic rod, and the end of the telescopic rod is located in the telescopic cover body 22 .

[0045] The driving main motor 8 controls the movement of the arc-shaped interference seat 11 by adjusting the interference assembly; further, the adjusting interference assembly includes a vertical lead screw 24 extending upward from the output end of the driving main motor 8 and fixedly connected thereto, the vertical lead screw 24 is connected to an adjusting disk 25 through a lead screw nut ring, the outer side wall of the adjusting disk 25 is rotatably connected to a interference adjusting rod 26, and a U-shaped connecting block 23 rotatably connected to the interference adjusting rod 26 is provided on the back of the arc-shaped interference seat 11.

[0046] The advantage of adopting the above structure is that when installing the quenched gear ring, the quenched gear ring is placed on the arc-shaped abutment seat 11. At this time, the rotation of the rotating disc 9 is restricted by the blocking member. The driving main motor 8 is started to rotate the vertical lead screw 24 connected thereto. When the adjusting disc 25 connected thereto by the lead screw nut ring rotates, it will move downward, driving the abutment adjusting rod 26 to drive the arc-shaped abutment seat 11 to move outward, so as to effectively support the quenched gear ring to be processed. And when it is necessary to drive the quenched gear ring to rotate, the rotation of the driving main motor 8 can achieve the rotation.

[0047] Further, the driving assembly includes a constant-speed motor 27 arranged in the driving table 7. The output end of the constant-speed motor 27 is fixedly connected with a transverse driving shaft 28. The outer side wall of the transverse driving shaft 28 extends outward through the water delivery cavity 10 and is fixedly connected with the partition disc 12. The turbine disc 14 is fixedly connected with the outer side wall of the transverse driving shaft 28.

[0048] The partition assembly includes a partition disc 12 driven by the driving assembly. A plurality of partition plates 13 are uniformly arranged on the outer side wall of the partition disc 12. The partition plates 13 are provided with a coating for refracting the laser.

[0049] Through the precise control of the constant-speed motor 27, during the rotation of the quenched gear ring to be processed, at the tooth flank, the partition disc 12 will not block the laser. When it is at the position of the tooth groove where quenching is not required, the partition plates 13 on the partition disc 12 just rotate to the corresponding position, so as to achieve the blocking of the laser, ensuring that the tooth groove is not quenched during quenching and ensuring the plastic strength of the entire tooth flank.

[0050] When the tooth flanks of the gear ring are quenched in the present invention, the gear ring is placed on the arc-shaped abutment seat 11. The rotation of the rotating disc 9 is restricted by the blocking member. The driving main motor 8 is started to rotate the vertical lead screw 24 connected thereto. When the adjusting disc 25 connected thereto by the lead screw nut ring rotates, it will move downward, driving the abutment adjusting rod 26 to drive the arc-shaped abutment seat 11 to move outward until the gear ring is internally supported and fixed on a plurality of arc-shaped abutment seats 11. At this time, the quenching position of the gear ring will be at the quenching position opening 6 of the heat-insulating cooling semi-ring body 5. The ring body position of the gear ring will be directly above the quenching position opening 6 and in contact with the wave-shaped water-absorbing cotton layer in the quenching position opening 6. The tooth flank position is inside the heat-insulating cooling semi-ring body 5. During the water circulation, it will not directly contact the tooth flanks of the gear ring to be measured, realizing the precise positioning of the laser quenching position of the gear ring;

[0051] When quenching is carried out, the driving main motor 8 will drive the gear ring to rotate slowly, and the laser quenching device 3 will precisely quench the tooth parts on the rotating gear ring. During the quenching process, the surface of the tooth quickly heats up, and its temperature will be transmitted to the position of the gear ring body. At this time, the wave-shaped water-absorbing cotton layer of the heat-insulating cooling semi-ring body 5 located at the bottom of the gear ring body will isolate the temperature, and the temperature cannot be transmitted to the hole position on the gear ring body, thus effectively avoiding the influence of heat on the holes;

[0052] When laser quenching is carried out, the baffle plate 12 connected to the constant-speed motor 27 will be driven to rotate. When rotating, the baffle plate 13 on the baffle plate 12 will rotate. During the rotation process, when the baffle plate 13 rotates to the upper part to block the laser, the laser quenching position of the gear ring to be quenched is just at the tooth groove. Therefore, when quenching the gear ring, the tooth groove of the gear will not be quenched, thus avoiding the situation where the hardness of the tooth root is increased and the toughness is reduced during quenching, and ensuring the quality of gear ring gear quenching.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A quenching device for metal heat treatment, comprising a quenching table (1), wherein the quenching table (1) is provided with a mounting chamber (2), wherein the mounting chamber (2) is provided with a laser quenching device (3), characterized in that: A water storage chamber (4) is provided inside the installation chamber (2), a water circulation component is provided inside the water storage chamber (4), a heat-insulating cooling semi-ring body (5) connected to the water circulation component is provided on one side of the installation chamber (2), a quenching pretreatment device is provided on the heat-insulating cooling semi-ring body (5), a quenching position opening (6) is provided on the heat-insulating cooling semi-ring body (5), a wave-shaped water-absorbing cotton layer is provided inside the quenching position opening (6), and a baffle component is provided at the quenching position opening (6); The quenching treatment table (1) is provided with a driving table (7), a driving main motor (8) is provided in the driving table (7), a rotating disk (9) is rotatably connected to the top of the driving table (7), a blocking member is provided on the outer wall of the rotating disk (9), the rotating disk (9) is connected to a plurality of arc-shaped abutment seats (11) via telescopic members, and the driving main motor (8) controls the movement of the arc-shaped abutment seats (11) by adjusting the abutment assembly; The baffle assembly comprises a baffle disc (12) driven by a driving assembly, and a plurality of baffle plates (13) are evenly arranged on the outer side wall of the baffle disc (12); The quenching pretreatment device comprises a high-frequency vibrator (16) arranged on a quenching treatment table (1); the side walls of the heat-insulating cooling semi-ring body (5) located on both sides of the quenching position opening (6) are provided with connecting supports (17); the connecting supports (17) are connected to a cleaning disk (18) via a vertical axis; the outer side wall of the cleaning disk (18) is provided with a cleaning tooth piece (19); and the output end of the high-frequency vibrator (16) is connected to the vertical axis; The blocking member comprises a clamping ring (20) fixedly arranged on the driving platform (7), and a telescopic clamping block (21) adapted to the clamping ring (20) is movably arranged on the outer side wall of the rotating disk (9).

2. A quenching equipment for metal heat treatment according to claim 1, characterized in that: The water circulation component comprises a water delivery chamber (10) opened in a water storage chamber (4), a turbine disc (14) being arranged in the water delivery chamber (10), a cooling pipe layer (15) communicating with the water storage chamber (4) being arranged on one side of the installation chamber (2), and the interior of the heat-insulating cooling semi-ring body (5) is hollow, and its two ends are respectively communicated with the water delivery chamber (10) and the cooling pipe layer (15).

3. A quenching equipment for metal heat treatment according to claim 1, characterized in that: The telescopic member comprises a telescopic cover body (22) fixedly arranged on the outer side wall of the rotating disk (9); the arc-shaped abutment seat (11) is fixedly connected to a telescopic rod, and the end of the telescopic rod is located in the telescopic cover body (22).

4. A quenching equipment for metal heat treatment according to claim 1, characterized in that: The adjusting and resisting assembly comprises a vertical lead screw (24) extending upward from the output end of the driving main motor (8) and fixedly connected thereto; the vertical lead screw (24) is connected to an adjusting disk (25) via a lead screw nut ring; an outer side wall of the adjusting disk (25) is rotatably connected to a resisting and adjusting rod (26); and a U-shaped connecting block (23) rotatably connected to the resisting and adjusting rod (26) is disposed on the back of the arc-shaped resisting seat (11).

5. The quenching equipment for metal heat treatment according to claim 2, characterized in that: The drive assembly comprises a constant speed motor (27) disposed in a drive platform (7); an output end of the constant speed motor (27) is fixedly connected to a transverse drive shaft (28); an outer side wall of the transverse drive shaft (28) penetrates the water delivery cavity (10) to extend outwards and is fixedly connected to the baffle plate (12); and the turbine plate (14) is fixedly connected to the outer side wall of the transverse drive shaft (28).

6. The quenching equipment for metal heat treatment according to claim 1, characterized in that: The arc-shaped abutment seat (11) is arranged in an "L" shape, and a rubber layer for increasing friction is arranged on the surface of the arc-shaped abutment seat (11).

7. The quenching equipment for metal heat treatment according to claim 1, characterized in that: The baffle plate (13) is provided with a coating for refracting laser light.

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