Wear-resistant quenching heat treatment tool for forgings
By designing a wear-resistant quenching heat treatment fixture for forgings, and using a positioning device and sliding structure to limit the warping of forgings, the problem of the center of gravity of large forgings being skewed during the quenching process was solved, and the stability and safety of the fixture were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-31
AI Technical Summary
During the quenching and heat treatment of large shaft forgings, due to their heavy weight and large size, the tooling clamped on one side of the forging surface can cause the center of gravity to shift, resulting in the forging and tooling shaking. This can easily cause them to collide with buildings or equipment in the heat treatment environment, posing a safety hazard.
A heat treatment fixture for wear-resistant quenching of forgings was designed, including two support rods, a hanging ring, a gripping rod, and a positioning device. The positioning block and spring work together to limit the tilting of the forging and ensure the stability of the center of gravity. The slider and the rotating wheel limit the angle of the sliding rod to improve stability.
It effectively prevents the center of gravity of forgings from shifting during movement, reduces swaying, improves the stability of the tooling, avoids safety accidents, and enhances ease of use.
Smart Images
Figure CN224062816U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of forging heat treatment tooling, specifically a forging wear-resistant quenching heat treatment tooling. Background Technology
[0002] Forgings are parts or blanks with specific shapes, dimensions, and properties obtained by applying pressure to carbon steel, alloy steel, and materials such as aluminum, magnesium, copper, titanium, and their alloys, causing plastic deformation. The forging process includes heating, deformation, and cooling.
[0003] Wear-resistant quenching heat treatment of forgings is a specific heat treatment process that improves the surface hardness and wear resistance of forgings while maintaining the toughness and strength of the core. This is achieved by rapidly heating the surface of the workpiece to the quenching temperature and then using tooling to place the forging into a cooling bath for rapid cooling, so that only the surface layer acquires the quenched structure, while the core retains the structure before quenching.
[0004] When using tooling to place large shaft forgings into the cooling tank, the forgings are heavy and large. If the tooling is clamped on one side of the forging surface, the center of gravity of the forging will tilt to one side. When moving, the forging and tooling will shake, which may cause them to collide with buildings or other equipment in the heat treatment environment, resulting in safety accidents and low stability of the tooling during use. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a heat treatment fixture for wear-resistant quenching of forgings. It solves the problem that because the forgings are heavy and large in size, if the fixture is clamped on one side of the forging surface, the center of gravity of the forging will be tilted to one side. When moving, the forging and the fixture will shake, which may cause them to collide with buildings or other equipment in the heat treatment environment, resulting in safety accidents and low stability of the fixture during use.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a forging wear-resistant quenching heat treatment fixture, comprising two support rods and a hanging ring. The two support rods are offset from each other and their top ends are rotatably connected via a shaft. The hanging ring is fixed to the outside of the shaft at the top of the two support rods. A gripping rod is rotatably connected to one end of each support rod. The two gripping rods are offset from each other and their middle ends are rotatably connected via a shaft. A positioning device is provided on one side of each gripping rod with the aid of an auxiliary device. The positioning device includes a rectangular block. A rotating shaft is rotatably connected to one side of the rectangular block. A groove rod is fixedly connected to one end of the rotating shaft. A coil spring is provided at the end of the rotating shaft away from the groove rod. The two ends of the coil spring are fixedly connected to one side of the rotating shaft and one side of the inner wall of the rectangular block, respectively. A sliding rod is slidably connected to the inner wall of the groove rod. A spring is provided at one end of the sliding rod. The two ends of the spring are fixedly connected to one end of the sliding rod and one side of the inner wall of the groove rod, respectively. A positioning block is rotatably connected to the end of the sliding rod away from the groove rod.
[0009] As a further embodiment of this utility model: sliders are fixedly connected to both sides of the sliding rod, and rotating wheels are rotatably connected to the upper and lower sides of the sliders.
[0010] As a further embodiment of this utility model: a round rod is fixedly connected to one end of the inner wall of the groove rod, and the sliding rod slides on the outer surface of the round rod.
[0011] As a further embodiment of this utility model: the round rod is located inside the spring, and the diameter of the round rod is slightly smaller than the inner diameter of the spring.
[0012] As a further embodiment of this utility model: a support plate is fixedly connected to one side of the rectangular block, and the end of the groove rod away from the sliding rod rotates on one side of the support plate.
[0013] As a further embodiment of this utility model: the auxiliary device includes a groove block, one side of which is fixedly connected to one side of a rectangular block, the outer surface of which is provided with several through holes, and bolts are inserted into the inner wall of the through holes. The gripper has several threaded holes on one side, and the outer surface of the bolts is threadedly connected to the inner wall of the threaded holes.
[0014] As a further embodiment of this utility model: two stops are fixedly connected to one side of the grab bar, and the distance between the two stops is slightly greater than the width of the groove block.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. The wear-resistant quenching heat treatment fixture for this forging has a positioning device. When the forging is lifted by the fixture, if the forging is tilted, the upward tilted end will contact the bottom of the positioning block on one side of a grab bar. The spring inside the grooved bar pushes the sliding rod to prevent the forging from tilting too much, which would cause the center of gravity of the forging to be seriously tilted, thus improving the stability of the fixture when transporting the forging.
[0018] 2. The wear-resistant quenching heat treatment fixture for this forging, by setting a slider, when the sliding rod moves inside the groove rod, the rotating wheels on the upper and lower sides of the slider will move on the outer surface of the groove rod. The angle between the sliding rod and the groove rod can be further restricted by the slider and the rotating wheels.
[0019] 3. The wear-resistant quenching heat treatment fixture for this forging can be equipped with an auxiliary device. By attaching the groove block to the outer surface of the gripper rod and threading the bolt through the through hole and threaded hole, the positioning device can be installed on the outside of the gripper rod. Rotating the bolt to disengage it from the threaded hole can remove the groove block and the positioning device. The use of the positioning device can be selected according to the needs, thus improving the convenience of using the positioning device. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of the support rod of this utility model;
[0022] Figure 3 This is a partial cross-sectional structural diagram of the grooved rod of this utility model;
[0023] Figure 4 This is a partial cross-sectional structural diagram of the grooved rod of this utility model.
[0024] In the diagram: 1. Support rod; 2. Positioning device; 3. Auxiliary device; 4. Grab rod; 5. Hanging ring; 21. Rectangular block; 22. Rotating shaft; 23. Coil spring; 24. Groove rod; 25. Sliding rod; 26. Spring; 27. Positioning block; 28. Slider; 29. Round rod; 210. Support plate; 31. Threaded hole; 32. Groove block; 33. Through hole; 34. Bolt; 35. Stop block. Detailed Implementation
[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0026] like Figure 1-3As shown, this utility model provides a technical solution: a forging wear-resistant quenching heat treatment fixture, including two support rods 1 and a hanging ring 5. The two support rods 1 are offset from each other and their top ends are rotatably connected by a shaft. The hanging ring 5 is fixed to the outside of the shaft at the top of the two support rods 1. One end of the support rod 1 is rotatably connected to a gripping rod 4. The two gripping rods 4 are offset from each other and their middle ends are rotatably connected by a shaft. A positioning device 2 is provided on one side of the gripping rod 4 with the aid of an auxiliary device 3. The positioning device 2 includes a rectangular block 21. A rotating shaft 22 is rotatably connected to one side of the rectangular block 21. A grooved rod 24 is fixedly connected to one end of the rotating shaft 22. A coil spring 23 is provided at the end of the rotating shaft 22 away from the grooved rod 24. The ends are fixedly connected to one side of the rotating shaft 22 and one side of the inner wall of the rectangular block 21, respectively. A sliding rod 25 is slidably connected to the inner wall of the groove rod 24. A spring 26 is provided at one end of the sliding rod 25. The two ends of the spring 26 are fixedly connected to one end of the sliding rod 25 and one side of the inner wall of the groove rod 24, respectively. A positioning block 27 is rotatably connected to the end of the sliding rod 25 away from the groove rod 24. By setting the positioning block 27, when using the tooling, the positioning device 2 is first installed on the outside of the two gripping rods 4 with the help of the auxiliary device 3 on one side of the two gripping rods 4. Then, the hook of the hoisting equipment is hung on the hanging ring 5 at the top of the support rod 1. The tooling is moved by the hoisting equipment so that the bottom ends of the two gripping rods 4 are aligned with the placement surface of the forging. The contact causes the two gripping rods 4 to rotate in a direction away from each other. Then, the support rod 1 is lifted by the hoisting equipment. Due to gravity, the two gripping rods 4 will move towards the center, clamping the forging. When the gripping rod 4 grips the outer surface of the forging to one side, the upward-tilting end of the forging will contact the bottom end of the positioning block 27 on one side of one of the gripping rods 4. This causes one end of the groove rod 24 to rotate via the rotating shaft 22, deforming the coil spring 23. During the movement of the forging, the surface of the forging presses against the outer surface of the positioning block 27, pushing the sliding rod 25 against the inner wall of the groove rod 24 towards the spring 26. The thrust of the spring 26 pushes the sliding rod 25, preventing one end of the forging from tilting upwards at an excessive angle, thus minimizing the movement of the forging. During the process, excessive tilting of the forging caused the tooling and forging to shake. When the forging was hoisted to the cooling pool, the hoisting equipment controlled the tooling to descend and place the forging into the cooling pool for quenching. After quenching, the forging was hoisted to the placement area, and the bottom of the forging and the grab bar 4 were brought into contact with the placement surface. The forging was then lowered. By setting up the positioning device 2, when the forging was hoisted by the tooling, if the forging was tilted, the upward tilted end would contact the bottom of the positioning block 27 on one side of the grab bar 4. The spring 26 inside the groove bar 24 pushed the sliding rod 25 to prevent the end of the forging from tilting excessively, which would cause the center of gravity of the forging to be seriously tilted, thus improving the stability of the tooling when transporting the forging.
[0027] Specifically, such as Figure 2-4As shown, sliders 28 are fixedly connected to both sides of the sliding rod 25. Rotary wheels are rotatably connected to the upper and lower sides of the sliders 28. When the sliding rod 25 moves inside the groove rod 24, the rotary wheels on the upper and lower sides of the sliders 28 will move on the outer surface of the groove rod 24. The sliders 28 and the rotary wheels can further limit the angle between the sliding rod 25 and the groove rod 24. A round rod 29 is fixedly connected to one end of the inner wall of the groove rod 24. The sliding rod 25 slides on the outer surface of the round rod 29. When the sliding rod 25 moves inside the groove rod 24, it will slide on the outer surface of the round rod 29. The round rod 29 can further limit the angle of the sliding rod 25 and avoid the sliding rod 25 from shaking when it moves.
[0028] Specifically, such as Figure 2-4 As shown, the round rod 29 is located inside the spring 26. The diameter of the round rod 29 is slightly smaller than the inner diameter of the spring 26. When the sliding rod 25 moves to compress the spring 26, the spring 26 will move outside the round rod 29. The round rod 29 can reinforce the internal shape of the spring 26 and prevent the spring 26 from twisting laterally, which would affect normal use. A support plate 210 is fixedly connected to one side of the rectangular block 21. The end of the grooved rod 24 away from the sliding rod 25 rotates on the side of the support plate 210. When the rotating shaft 22 drives the grooved rod 24 to rotate, the support plate 210 can support one end of the grooved rod 24, improving the connection stability between the rotating shaft 22, the grooved rod 24 and the rectangular block 21.
[0029] Specifically, such as Figure 1-4 As shown, the auxiliary device 3 includes a slot block 32, one side of which is fixedly connected to one side of a rectangular block 21. The outer surface of the slot block 32 has several through holes 33, and bolts 34 are inserted into the inner wall of the through holes 33. The gripping rod 4 has several threaded holes 31 on one side, and the outer surface of the bolts 34 is threaded to the inner wall of the threaded holes 31. When installing the positioning device 2, one side of the slot block 32 is attached to the outer surface of the gripping rod 4. Several bolts 34 are passed through the through holes 33 on the outer surface of the slot block 32 and inserted into the threaded holes 31 on the outer surface of the gripping rod 4. The bolts 34 are rotated to make the bolts 34 threaded to the inner wall of the threaded holes 31. The slot block 32 and the positioning device 2 can be installed on one side of the gripping rod 4. The positioning device 2 can be removed by rotating the bolts 34 and pulling them out of the threaded holes 31, thus improving the convenience of using the positioning device 2.
[0030] Specifically, such as Figure 2-4 As shown, two stops 35 are fixedly connected to one side of the grab bar 4. The distance between the two stops 35 is slightly greater than the width of the slot 32. When installing the slot 32, the slot 32 can be clamped between the two stops 35, which makes it easier to limit the angle between the slot 32 and the grab bar 4, align the through hole 33 and the threaded hole 31, and facilitate the insertion of the bolt 34.
[0031] The working principle of this utility model is as follows:
[0032] S1. When using the tooling, first attach one side of the slot block 32 to the outer surface of the two gripping rods 4 on one side. Use several bolts 34 to pass through the through holes 33 on the outer surface of the slot block 32 and insert them into the threaded holes 31 on the outer surface of the gripping rod 4. Rotate the bolts 34 to make the bolts 34 threadedly connected to the inner wall of the threaded holes 31. Threading the bolts 34 to the gripping rod 4 allows the slot block 32 and the positioning device 2 to be installed on one side of the gripping rod 4.
[0033] S2. Hang the hook of the hoisting equipment on the hanging ring 5 at the top of the support rod 1. Move the tooling with the hoisting equipment so that the bottom ends of the two gripping rods 4 contact the placement surface of the forging, causing the two gripping rods 4 to rotate in a direction away from each other. Then, lift the support rod 1 with the hoisting equipment. The two gripping rods 4 will move towards the middle due to gravity, clamping the forging. When the gripping rods 4 grip the outer surface of the forging and are biased to one side, the upward tilted end of the forging will contact the bottom end of the positioning block 27 on one side of one of the gripping rods 4, causing one end of the groove rod 24 to rotate through the rotating shaft 22 and deform the coil spring 23. During the movement of the forging, the surface of the forging abuts against the outer edge of the positioning block 27. The surface will push the sliding rod 25 to slide in the direction of the spring 26 on the inner wall of the groove rod 24. The spring 26 pushes the sliding rod 25 to prevent one end of the forging from tilting upward at too large an angle, so as to avoid excessive tilting of the forging during the movement of the forging, which would cause the tooling and forging to shake. When it is hoisted to the cooling pool, the tooling is lowered by the hoisting equipment to put the forging into the cooling pool for quenching. After quenching, the forging is hoisted to the placement location, so that the bottom end of the forging and the grab rod 4 contacts the placement surface and the forging is put down. The positioning device 2 can be removed by turning the bolt 34 and pulling the bolt 34 out of the threaded hole 31.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A forging wear-resistant quenching and tempering heat treatment tooling, comprising two supporting rods (1) and a hanging ring (5), characterized in that: Two support rods (1) are staggered with each other and the top ends are connected by shaft rotation, the hanging ring (5) is fixed outside the shaft of the top end of the two support rods (1), one end of the support rod (1) is rotatably connected with the grab rod (4), the two grab rods (4) are staggered with each other and the middle ends are connected by shaft rotation, one side of the grab rod (4) is provided with the positioning device (2) by means of the auxiliary device (3), the positioning device (2) comprises a rectangular block (21), one side of the rectangular block (21) is rotatably connected with a rotating shaft (22), one end of the rotating shaft (22) is fixedly connected with a groove rod (24), the end of the rotating shaft (22) away from the groove rod (24) is provided with a coil spring (23), the two ends of the coil spring (23) are fixedly connected with one side of the rotating shaft (22) and one side of the inner wall of the rectangular block (21) respectively, the inner wall of the groove rod (24) is slidably connected with a sliding rod (25), one end of the sliding rod (25) is provided with a spring (26), the two ends of the spring (26) are fixedly connected with one end of the sliding rod (25) and one side of the inner wall of the groove rod (24) respectively, the end of the sliding rod (25) away from the groove rod (24) is rotatably connected with a positioning block (27).
2. The forging wear-resistant quenching and heat treatment tooling according to claim 1, characterized in that: The two sides of the sliding rod (25) are fixedly connected with sliding blocks (28), the upper and lower sides of the sliding block (28) are rotatably connected with rotating wheels respectively.
3. The forging wear-resistant quenching and heat treatment tooling according to claim 2, characterized in that: One end of the inner wall of the groove rod (24) is fixedly connected with a circular rod (29), the sliding rod (25) slides on the outer surface of the circular rod (29).
4. The forging wear-resistant quenching and heat treatment tooling according to claim 3, characterized in that: The circular rod (29) is located in the spring (26), and the diameter of the circular rod (29) is smaller than the inner diameter of the spring (26).
5. The forging wear-resistant quenching and heat treatment tooling according to claim 4, characterized in that: One side of the rectangular block (21) is fixedly connected with a supporting plate (210), and one end of the groove rod (24) away from the sliding rod (25) is rotatable on one side of the supporting plate (210).
6. The forging wear-resistant quenching and heat treatment tooling of claim 1, wherein: The auxiliary device (3) comprises a groove block (32), one side of the groove block (32) is fixedly connected with one side of the rectangular block (21), a plurality of through holes (33) are formed in the outer surface of the groove block (32), the inner wall of the through hole (33) is provided with a bolt (34) in plug-in mode, a plurality of threaded holes (31) are formed in one side of the grab rod (4), and the outer surface of the bolt (34) is in threaded connection with the inner wall of the threaded hole (31).
7. The forging wear-resistant quenching and heat treatment tooling according to claim 6, characterized in that: One side of the grab rod (4) is fixedly connected with two stop blocks (35), and the distance between the two stop blocks (35) is greater than the width of the groove block (32).