A vertical anti-deformation clamping tool for carburizing and quenching of a slider

Abstract

The utility model discloses a vertical anti -deformation clamping frock with carburizing and quenching of sliding block relates to sliding block processing field, including clamping seat, the outer wall of clamping seat all touches with first fixed cover, the inner wall fixed connection of first fixed cover has the clamping sleeve, the inner wall of clamping sleeve all is provided with high temperature spring, the utility model discloses by setting up the clamping plate adopts GH4169 high temperature alloy material, and the clamping plate outside evenly spreads high temperature inorganic adhesive, and lays ceramic fiber, and through special pressure roller rolling, makes ceramic fiber no bubble, no wrinkle, and the outside of ceramic fiber covers nickel base alloy foil, and after again rolling, sends into the oven solidification, makes three form integrated structure, avoids delamination under high temperature and falls off, and after the sliding block main part is taken out from carburizing furnace, and the clamping plate needs to experience the rapid temperature change, and the porous structure of ceramic fiber can absorb the energy of thermal shock and produce, reduces the impact of temperature sudden change to clamping plate, and greatly prolongs the fatigue life of clamping plate.

Description

Technical Field

[0001] This utility model relates to the field of slider processing, specifically a vertical anti-deformation clamping fixture for slider carburizing and quenching. Background Technology

[0002] As a core load-bearing component of mechanical transmission systems, sliders are widely used in key fields such as automotive gearboxes, aerospace landing gears, and precision machine tool guideways. Their surface hardness, wear resistance, and overall precision directly determine the transmission efficiency and service life of the equipment. Carburizing and quenching is the core process for improving the surface performance of sliders. A high-carbon layer is formed on the surface through high-temperature carburizing at 900℃, followed by quenching at 800℃ and low-temperature tempering, so that the surface hardness of the slider reaches HRC58-62, while ensuring the toughness of the core. However, during the carburizing and quenching process, the slider is subject to thermal expansion and contraction at high temperatures and improper clamping constraints. Therefore, a vertical anti-deformation clamping fixture for slider carburizing and quenching is required.

[0003] Existing vertical anti-deformation clamping fixtures for carburizing and quenching sliders are prone to continuous deformation at high temperatures during operation, affecting subsequent clamping accuracy. Uneven temperature distribution inside and outside the slider causes asynchronous shrinkage and expansion, resulting in complex internal stress and easily leading to slider distortion and warping. Therefore, there is an urgent need for a vertical anti-deformation clamping fixture for carburizing and quenching sliders. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a vertical anti-deformation clamping fixture for carburizing and quenching sliders, so as to solve the problems that existing vertical anti-deformation clamping fixtures for carburizing and quenching sliders are prone to continuous deformation at high temperatures during use, affecting subsequent clamping accuracy, and uneven temperature distribution inside and outside the slider, causing asynchronous shrinkage and expansion of the slider, resulting in complex internal stress, which can easily lead to slider distortion and warping deformation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical anti-deformation clamping fixture for carburizing and quenching a slider, comprising a clamping base, the outer wall of the clamping base abutting against a first fixing sleeve, the inner wall of the first fixing sleeve being fixedly connected to a clamping sleeve, the inner wall of the clamping sleeve being provided with a high-temperature spring, one end of the high-temperature spring abutting against a clamping plate, the outer wall of the clamping plate being provided with a guide plate, the outer wall of the clamping plate being bonded with ceramic fiber, and the outer wall of the ceramic fiber being bonded with a nickel-based alloy foil.

[0006] The outer wall of each nickel-based alloy foil is fitted with a ferrule, and the outer wall of each ferrule is fixedly connected with a second fixing sleeve. One side of the nickel-based alloy foil abuts against the slider body, and the inner wall of the clamp is fitted with a eutectic salt heat storage block.

[0007] Preferably, the clamp and the sleeve are engaged and connected, and the clamp and the sleeve are arranged perpendicularly.

[0008] Preferably, the outer wall of the clamping plate is tightly fitted to the outer wall of the ceramic fiber, and the width of the outer wall of the clamping plate is smaller than the width of the outer wall of the ceramic fiber.

[0009] Preferably, the outer wall of the ceramic fiber is closely fitted to the outer wall of the nickel-based alloy foil, and the length of the outer wall of the ceramic fiber is the same as the length of the outer wall of the nickel-based alloy foil.

[0010] Preferably, the ferrule is threadedly connected to the second fixing sleeve, and the second fixing sleeve is symmetrically arranged about the central axis of the ferrule.

[0011] Preferably, the eutectic salt heat storage block is engaged with the clamp, and the inner wall of the clamp has a slotted design.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses GH4169 high-temperature alloy material for the clamping plate. The outside of the clamping plate is evenly coated with high-temperature inorganic adhesive, and ceramic fiber is laid on it. It is then rolled by a special pressure roller to make the ceramic fiber free of bubbles and wrinkles. Nickel-based alloy foil is then covered on the outside of the ceramic fiber. After rolling again, it is sent to an oven for curing, so that the three components form an integrated structure, which avoids delamination and peeling at high temperatures. After the slider body is taken out of the carburizing furnace, the clamping plate needs to undergo rapid temperature changes. The porous structure of the ceramic fiber can absorb the energy generated by thermal shock, reduce the impact of sudden temperature changes on the clamping plate, and significantly extend the fatigue life of the clamping plate.

[0014] 2. This utility model uses a clamp as the core support component for the tooling to support the slider body. It is made of GH4169 high-temperature alloy and matched with a eutectic salt heat storage block. The eutectic salt is used as the core heat storage medium. The outer alloy shell prevents the eutectic salt from leaking or oxidizing at high temperatures. When the slider body is taken out of the carburizing furnace and placed above the clamp, its surface temperature is too high, far exceeding the phase change temperature of the eutectic salt heat storage block. The eutectic salt heat storage block quickly absorbs the heat transferred by the slider body through the alloy shell. The internal eutectic salt medium gradually changes from solid to liquid. The heat storage block enters the phase change heat storage state, which effectively offsets the sudden heat loss when the slider body initially contacts the cooling medium. It avoids the surface cooling rate from the rapid cooling state to the slow cooling range directly, and reserves time for the internal heat to be conducted to the surface. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a structural schematic diagram of the ferrule part of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the clamping plate and guide plate assembly of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram of section A in the middle.

[0019] In the figure: 1. Clamping seat; 2. First fixing sleeve; 3. Clamping sleeve; 4. High temperature spring; 5. Clamping plate; 6. Guide plate; 7. Ceramic fiber; 8. Nickel-based alloy foil; 9. Sleeve; 10. Second fixing sleeve; 11. Slider body; 12. Eutectic salt heat storage block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figure 1-4 A vertical anti-deformation clamping fixture for carburizing and quenching a slider includes a clamping seat 1. The outer wall of the clamping seat 1 abuts against a first fixing sleeve 2. A clamping sleeve 3 is fixedly connected to the inner wall of the first fixing sleeve 2. The clamping seat 1 and the clamping sleeve 3 are engaged and connected, and the clamping seat 1 and the clamping sleeve 3 are arranged perpendicularly. A high-temperature spring 4 is provided on the inner wall of each clamping sleeve 3. One end of each high-temperature spring 4 abuts against a clamping plate 5. A guide plate 6 is provided on the outer wall of each clamping plate 5. Ceramic fiber 7 is adhered to the outer wall of the clamping plate 5, and the outer wall of the clamping plate 5 is tightly fitted to the outer wall of the ceramic fiber 7. The width of the outer wall of the clamping plate 5 is smaller than the width of the outer wall of the ceramic fiber 7. A nickel-based alloy foil 8 is adhered to the outer wall of the ceramic fiber 7, and the outer wall of the ceramic fiber 7 is tightly fitted to the outer wall of the nickel-based alloy foil 8. The ceramic fiber 7 is tightly bonded, and the outer wall length of the ceramic fiber 7 is the same as that of the nickel-based alloy foil 8. The clamping plate 5 is made of GH4169 high-temperature alloy material. The outer side of the clamping plate 5 is evenly coated with high-temperature inorganic adhesive, and then the ceramic fiber 7 is laid. It is rolled by a special pressure roller to make the ceramic fiber 7 free of bubbles and wrinkles. The nickel-based alloy foil 8 is covered on the outside of the ceramic fiber 7, and after rolling again, it is sent into the oven for curing, so that the three form an integrated structure, avoiding delamination and peeling at high temperature. After the slider body 11 is taken out of the carburizing furnace, the clamping plate 5 needs to undergo rapid temperature changes. The porous structure of the ceramic fiber 7 can absorb the energy generated by thermal shock, reduce the impact of sudden temperature changes on the clamping plate 5, and significantly extend the fatigue life of the clamping plate 5.

[0023] Please see Figure 1-4A vertical anti-deformation clamping fixture for carburizing and quenching a slider is disclosed. Each nickel-based alloy foil 8 has a retaining sleeve 9 mounted on its outer wall. Each retaining sleeve 9 has a second fixing sleeve 10 fixedly connected to its outer wall. The retaining sleeves 9 and the second fixing sleeves 10 are threaded together, and the second fixing sleeves 10 are symmetrically arranged about the central axis of the retaining sleeves 9. One side of the nickel-based alloy foil 8 abuts against the slider body 11. A eutectic salt heat storage block 12 is mounted on the inner wall of the clamping seat 1, and the eutectic salt heat storage block 12 is engaged with the clamping seat 1. The inner wall of the clamping seat 1 has a slotted design. By setting the clamping seat 1 as the core support component for carrying the slider body 11, it is made of GH4169 high-temperature alloy material, and the matching eutectic salt heat storage block is used. The hot block 12 uses eutectic salt as the core heat storage medium and is wrapped with an alloy shell to prevent eutectic salt leakage or oxidation at high temperatures. When the slider body 11 is taken out of the carburizing furnace and placed above the clamp 1, its surface temperature is too high, far exceeding the phase change temperature of the eutectic salt heat storage block 12. The eutectic salt heat storage block 12 quickly absorbs the heat transferred by the slider body 11 through the alloy shell. The internal eutectic salt medium gradually changes from solid to liquid and enters the phase change heat storage state. This effectively offsets the sudden heat loss when the slider body 11 initially contacts the cooling medium, and avoids the surface cooling rate from the rapid cooling state to the slow cooling range, thus reserving time for the internal heat to be conducted to the surface.

[0024] Working principle: In use, the clamp 1 is removed and installed in the designated position of the carburizing and quenching device. The ceramic fiber 7 and the nickel-based alloy foil 8 are pressed together. The guide plate 6 is then bonded and fixed to the ceramic fiber 7. The ferrule 9 is then clamped and fixed to the guide plate 6. The second fixing sleeve 10 is threaded and fixed to the ferrule 9. The ferrule 9 is then pressed tightly against the ceramic fiber 7 and the nickel-based alloy foil 8 to prevent them from falling off. The eutectic salt heat storage block 12 is clamped and fixed to the clamp 1. The slider body 11 is then pressed down against the clamping plate 5. The clamping plate 5 is then clamped and fixed against the slider body 11. Finally, the slider body 11 is quenched. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical anti-deformation clamping fixture for carburizing and quenching a slider, comprising a clamp (1), characterized in that: The outer wall of each clamp (1) abuts against a first fixing sleeve (2), and the inner wall of the first fixing sleeve (2) is fixedly connected to a clamp (3). The inner wall of each clamp (3) is provided with a high temperature spring (4), one end of the high temperature spring (4) abuts against a clamp plate (5), the outer wall of each clamp plate (5) is provided with a guide plate (6), the outer wall of the clamp plate (5) is attached with ceramic fiber (7), and the outer wall of the ceramic fiber (7) is attached with nickel-based alloy foil (8). The outer wall of each nickel-based alloy foil (8) is fitted with a sleeve (9), and the outer wall of each sleeve (9) is fixedly connected with a second fixing sleeve (10). One side of the nickel-based alloy foil (8) abuts against the slider body (11), and the inner wall of the clamp (1) is fitted with a eutectic salt heat storage block (12).

2. The vertical anti-deformation clamping fixture for carburizing and quenching a slider according to claim 1, characterized in that: The clamp (1) is engaged with the sleeve (3), and the clamp (1) and the sleeve (3) are arranged perpendicularly.

3. The vertical anti-deformation clamping fixture for carburizing and quenching a slider according to claim 1, characterized in that: The outer wall of the clamp (5) is closely fitted with the outer wall of the ceramic fiber (7), and the width of the outer wall of the clamp (5) is smaller than the width of the outer wall of the ceramic fiber (7).

4. The vertical anti-deformation clamping fixture for carburizing and quenching a slider according to claim 1, characterized in that: The outer wall of the ceramic fiber (7) is closely attached to the outer wall of the nickel-based alloy foil (8), and the length of the outer wall of the ceramic fiber (7) is the same as the length of the outer wall of the nickel-based alloy foil (8).

5. The vertical anti-deformation clamping fixture for carburizing and quenching a slider according to claim 1, characterized in that: The ferrule (9) is threadedly connected to the second fixing sleeve (10), and the second fixing sleeve (10) is symmetrically arranged about the central axis of the ferrule (9).

6. The vertical anti-deformation clamping fixture for carburizing and quenching a slider according to claim 1, characterized in that: The eutectic salt heat storage block (12) is engaged with the clamp (1), and the inner wall of the clamp (1) is designed with a slot.

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