Special tool clamp for preparing electron beam cladding functional coating

Abstract

The utility model discloses a special tool clamp for preparing an electron beam cladding functional coating, which comprises a clamping assembly, a plurality of clamping assemblies, a plurality of clamping assemblies and a plurality of clamping assemblies, the clamping assemblies are used for clamping and fixing a copper plate, and the clamping assemblies are provided with a plurality of temperature sensors used for monitoring the temperature change of the copper plate in the electron beam cladding process; and the temperature adjusting assembly is located under the clamping assembly, and the temperature adjusting assembly is used for heating or cooling the copper plate. According to the utility model, the risk of flexural deflection of the copper plate can be reduced, and the coating processing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of processing fixtures, in particular to a special tooling fixture for preparing electron beam cladding functional coatings. Background Art

[0002] Electroplating technology is a commonly used surface treatment technology for crystallizer copper plates. Electroplating technology is flexible, has high deposition efficiency, is easy to automate, and can obtain alloy coatings on the surface of parts with complex shapes. However, the electroplating layer is physically combined with the substrate, has poor wear resistance, low hardness, and the electroplating process seriously pollutes the environment and does not meet environmental protection requirements. The laser cladding process uses laser as a heat source, which requires a lot of beam energy. However, due to the high reflectivity of the copper surface to the laser, the energy utilization rate of using laser to clad copper is less than 10%.

[0003] Electron beam cladding technology refers to the use of high-speed electron beams to partially melt the surface of a workpiece in a vacuum environment, and in the process of instantaneous cooling and solidification, the molten metal powder or wire is sprayed onto the surface of the workpiece to form a special coating. Since electron beams can easily achieve high-power output, during electron beam cladding, the workpiece will be deformed due to uneven temperature distribution due to local temperature rise, thus affecting the formation effect of the coating on the surface of the workpiece.

[0004] At the same time, since the dilution rate of the cladding layer (i.e., the relative ratio of the cladding material to the parent material during the cladding process) will directly affect the performance of the formed coating, if the dilution rate is too low, the bonding performance between the cladding layer and the substrate is poor, or even metallurgical bonding cannot be achieved; if the dilution rate is too high, the substrate elements will over-dilute the cladding layer, which can easily lead to defects such as cracks and pores in the cladding layer. Therefore, during the electron beam cladding process, it is necessary to control the increase in the temperature of the workpiece, and it is relatively difficult to adjust the power of the electron beam in the cladding process in real time according to the temperature of the workpiece. In addition, the depth and width of the molten pool formed on the workpiece by electron beams of different powers are also different, so there may be a large difference in the thickness of the cladding layer at different positions on the workpiece, affecting the processing quality of the coating on the workpiece surface. Utility Model Content

[0005] The utility model aims to provide a special tooling fixture for preparing electron beam cladding functional coatings, which can reduce the risk of bending and deformation of copper plates and ensure the quality of coating processing.

[0006] The technical solution adopted by the utility model to solve the above problems is:

[0007] A special tooling fixture for preparing electron beam cladding functional coatings, comprising:

[0008] A clamping assembly, which is used to clamp and fix the copper plate, and the clamping assembly is provided with a plurality of temperature sensors for monitoring the temperature change of the copper plate during the electron beam cladding process;

[0009] The temperature regulating component is located directly below the clamping component and is used to increase or decrease the temperature of the copper plate.

[0010] As a further improvement of the above technical solution, the clamping assembly includes a back plate and several first tightening units for clamping the copper plate, each first tightening unit is symmetrically arranged relative to the back plate, the first tightening unit includes a first support plate and a tightening block, the first support plate is detachably mounted on the back plate, at least two first tightening bolts are threadedly connected to the first support plate, the tightening block is located between the copper plate and the first tightening bolts, the temperature sensor is embedded in the tightening block, and when the copper plate is fixed on the clamping assembly, the tightening block is clamped between the copper plate and the first tightening bolt.

[0011] As a further improvement of the above technical solution, the temperature control component includes an electric heating plate and a plurality of support units for supporting the electric heating plate. The electric heating plate is provided with a compressed air inlet, a compressed air outlet and an electric heating wire connection port. The support units are arranged in a straight line with equal intervals. The support unit includes a bottom plate strip. Support blocks are detachably mounted on both ends of the bottom plate strip. The support blocks are arranged perpendicular to the bottom plate strip. The electric heating plate is arranged in a accommodating space surrounded by the support blocks and the bottom plate strip.

[0012] As a further improvement of the above technical solution, it also includes a transition copper bar. When the copper plate is fixed on the clamping assembly, the transition copper bar is clamped between the copper plate and the clamping block, and the top surface of the transition copper bar and the copper plate are on the same horizontal plane.

[0013] As a further improvement of the above technical solution, it also includes two detection copper bars, the first tightening unit is located between the two detection copper bars, and a second support plate corresponding to the detection copper bars is detachably installed on the back plate, and at least two second tightening bolts are threadedly connected to the second support plate. A groove is provided on the inner end of the top end of the detection copper bar. When the copper plate is fixed on the clamping assembly, the detection copper bar is clamped between the copper plate and the second tightening bolt, and the top surfaces of the detection copper bar and the copper plate are on the same horizontal plane.

[0014] As a further improvement of the above technical solution, hanging ears are provided on the four corners of the back plate.

[0015] As a further improvement of the above technical solution, it also includes a number of pressure plate units corresponding to the support blocks one by one, the pressure plate unit includes a pressure plate and a sliding column, the pressure plate is sleeved on the sliding column, the sliding column is detachably installed on the bottom plate bar and the two are perpendicular to each other, the clamping assembly is located between the pressure plate and the electric heating plate, and the sliding column is threadedly connected with a tightening nut for clamping the clamping assembly between the pressure plate and the electric heating plate.

[0016] As a further improvement of the above technical solution, it also includes a heat storage shell, which is a box structure with an open top and a closed bottom. The clamping assembly, the motor hot plate, the support unit and the temperature measuring assembly are all located in the cavity of the heat storage shell. A through hole is opened on the heat storage shell, and the compressed air inlet, the compressed air outlet and the electric heating wire connection port are all on the same end of the heat storage shell as the through hole.

[0017] Compared with the prior art, the utility model has the following advantages and effects:

[0018] (1) The utility model fixes the copper plate through the clamping component, so that the clamp can be applied to copper plates of different specifications, meeting the use requirements of rapid production change, improving the applicability of the clamp and making it reusable, while also reducing the risk of the copper plate displacement affecting the accuracy of the electron beam cladding position. Combined with the temperature sensor's detection effect on the copper plate temperature and the temperature control component's cooling effect on the copper plate, the temperature of the copper plate can be stably maintained within a specific temperature range, thereby reducing the risk of the copper plate being flexurally deformed and improving the control of the dilution rate during the cladding process. There is no need to adjust the power of the electron beam during the cladding process to achieve temperature control of the copper plate, which reduces the difficulty of operation and ensures the quality of coating processing.

[0019] (2) The utility model uses the temperature-adjusting component to increase the temperature of the copper plate, so that the copper plate in a vacuum environment can be directly subjected to electron beam cladding operation after preheating, thereby reducing the heat loss of the copper plate during the operation transition process. In addition, due to the increase in the temperature of the copper plate, the temperature difference between the irradiation position of the electron beam on the copper plate and other positions on the copper plate is reduced, thereby reducing the risk of flexural deformation of the copper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a special tooling fixture for preparing electron beam cladding functional coating.

[0021] Figure 2 The utility model is a schematic top view of the structure of a special tooling fixture for preparing electron beam cladding functional coating.

[0022] Figure 3 The utility model is a partial structural schematic diagram of a special tooling fixture for preparing electron beam cladding functional coating.

[0023] Figure 4 yes Figure 3 A schematic diagram of the structure between the heat storage cover and the support unit is shown in FIG.

[0024] Figure 5 The utility model is a schematic side sectional view of the structure of a special tooling fixture for preparing electron beam cladding functional coating.

[0025] Among them, the clamping component 1, the back plate 11, the first tightening unit 12, the first support plate 13, the tightening block 14, the first tightening bolt 15, the transition copper strip 16, the temperature control component 2, the electric heating plate 21, the support unit 22, the compressed air inlet 23, the compressed air outlet 24, the electric heating wire connection port 25, the bottom plate strip 26, the support block 27, the accommodating space 28, the temperature sensor 3, the lifting ear 4, the detection copper strip 51, the second support plate 52, the second tightening bolt 53, the groove 54, the heat storage cover 6, the through hole 61, the pressure plate unit 7, the pressure plate 71, the sliding column 72, the tightening nut 73, and the copper plate 8. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0027] See also Figure 1-Figure 5 The present embodiment provides a special tooling fixture for preparing an electron beam cladding functional coating, including a clamping component 1 and a temperature regulating component 2. The clamping component 1 is used to clamp and fix a copper plate. The clamping component 1 is provided with a plurality of temperature sensors 3 for monitoring the temperature change of the copper plate during the electron beam cladding process. The temperature regulating component 2 is located directly below the clamping component 1 and is used to heat or cool the copper plate.

[0028] When in use, the copper plate is clamped and fixed on the clamping component 1, and before the electron beam cladding operation is performed, the copper plate is preheated by the temperature regulating component 2, and during this process, the temperature of the copper plate can be detected in real time by the temperature sensor 3. When the temperature of the copper plate reaches a certain value, the temperature regulating component 2 stops heating the copper plate, and the electron beam cladding operation is performed to form a coating on the surface of the copper plate. During this process, the temperature of the copper plate is detected in real time by the temperature sensor 3, and when the temperature of the copper plate rises and exceeds a specific value, the copper plate is cooled by the temperature regulating component 2 to reduce the risk of bending and deformation of the copper plate due to excessive temperature, thereby ensuring the effect and quality of the surface coating processing of the copper plate.

[0029] In this embodiment, the temperature sensor 3 adopts a K-type thermocouple, which can directly measure the surface temperature of liquid vapor and gas medium and solid in the range of 0°C to 1300°C in various production processes, and has high sensitivity, good stability and low price.

[0030] See also Figure 1-Figure 3The clamping assembly 1 includes a back plate 11 and a plurality of first tightening units 12 for clamping the copper plate. Each first tightening unit 12 is symmetrically arranged relative to the back plate 11. The first tightening unit 12 includes a first support plate 13 and a tightening block 14. The first support plate 13 is detachably mounted on the back plate 11. At least two first tightening bolts 15 are threadedly connected to the first support plate 13. The tightening block 14 is located between the copper plate and the first tightening bolts 15. The temperature sensor 3 is embedded in the tightening block 14. When the copper plate is fixed on the clamping assembly 1, the tightening block 14 is clamped between the copper plate and the first tightening bolts 15, which increases the contact area during clamping, thereby improving the clamping and fixing effect of the copper plate.

[0031] See also Figure 1 The four corners of the back plate 11 are provided with lifting ears 4, which facilitates the lifting of the clamp and improves the convenience of adjusting the position of the clamp.

[0032] See also Figure 2 , Figure 3 , and also includes a transition copper bar 16. When the copper plate is fixed on the clamping assembly 1, the transition copper bar 16 is clamped between the copper plate and the clamping block 14, and the transition copper bar 16 and the top surface of the copper plate are on the same horizontal plane, which increases the coating area formed by electron beam cladding, thereby ensuring the integrity and quality of the coating formed on the copper plate and reducing cladding defects.

[0033] See also Figure 2 , Figure 3 , also includes two detection copper strips 51, the first tightening unit 12 is located between the two detection copper strips 51, the back plate 11 is detachably mounted with a second support plate 52 corresponding to the detection copper strips 51, the second support plate 52 is threadedly connected with at least two second tightening bolts 53, and a groove 54 is provided on the inner end of the top of the detection copper strip 51, which plays a marking effect on the edge between the detection copper strip 51 and the copper plate, facilitating the separation of the detection copper strip 51 and the copper plate after electron beam cladding, and when the copper plate is fixed on the clamping assembly 1, the detection copper strip 51 is clamped between the copper plate and the second tightening bolt 53, and the top surface of the detection copper strip 51 and the copper plate are on the same horizontal plane. By setting the detection copper strip 51, after the coating is formed on the copper plate, the purpose of detecting the coating performance on the copper plate can be achieved by detecting the coating formed on the detection copper strip 51, so as not to affect the integrity of the copper plate and the coating thereon, and to ensure the processing quality of the coating on the copper plate.

[0034] See also Figure 4 , Figure 5The temperature control assembly 2 includes an electric heating plate 21 and a plurality of support units 22 for supporting the electric heating plate 21. The electric heating plate 21 is provided with a compressed air inlet 23, a compressed air outlet 24 and an electric heating wire connection port 25, so that the electric heating plate 21 can preheat and cool the copper plate, thereby improving the copper plate processing efficiency. Each support unit 22 is arranged in a straight line with equal spacing. The support unit 22 includes a bottom plate strip 26. Both ends of the bottom plate strip 26 are detachably mounted with support blocks 27. The support blocks 27 are arranged perpendicular to the bottom plate strip 26. The electric heating plate 21 is inserted into a receiving space 28 surrounded by the support blocks 27 and the bottom plate strip 26. Through the supporting effect of the support unit 22 on the electric heating plate 21, the electric heating plate 21 can be suspended, which is beneficial to the heat dissipation of the electric heating plate 21.

[0035] In this embodiment, the electric heating plate 21 is an Al-6-500 electric heating plate made of aluminum alloy. The electric heating plate 21 is provided with a heating tube that can be electrically heated and a cooling tube for the flow of a cooling medium, and has the function of heating or cooling an object.

[0036] See also Figure 4 , and also includes a heat storage shell 6, which is a box structure with an open top and a closed bottom. The clamping assembly 1, the motor hot plate, the support unit 22 and the temperature measuring assembly are all located in the cavity of the heat storage shell 6, which reduces the heat loss on the copper plate during the electron beam cladding process. A through hole 61 is opened on the heat storage shell 6, and the compressed air inlet 23, the compressed air outlet 24 and the electric heating wire connection port 25 are all on the same end of the heat storage shell 6 as the through hole 61, which facilitates the connection of the compressed air pipeline and the wires on the electric heating plate 21, and ensures the orderly arrangement of the pipelines on the fixture.

[0037] See also Figure 5 , and also includes a plurality of pressing plate units 7 corresponding to the support blocks 27 one by one, the pressing plate unit 7 includes a pressing plate 71 and a sliding column 72, the pressing plate 71 is sleeved on the sliding column 72, the sliding column 72 is detachably mounted on the bottom plate strip 26 and the two are perpendicular to each other, the clamping assembly 1 is located between the pressing plate 71 and the electric heating plate 21, and a top nut 73 for clamping the clamping assembly 1 between the pressing plate 71 and the electric heating plate 21 is threadedly connected on the sliding column 72. Through the arrangement of the pressing plate unit 7, the assembly of the clamping assembly 1 on the temperature regulating assembly 2 is realized, and the stability of the position between the copper plate and the electric heating plate 21 during the electron beam cladding process is ensured, thereby improving the accuracy of the electric heating plate 21 in heating and cooling the copper plate, and ensuring the efficiency and quality of the coating processing on the copper plate.

[0038] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A special fixture for preparing electron beam cladding functional coating, characterized in that: include: A clamping assembly, which is used to clamp and fix the copper plate, and the clamping assembly is provided with a plurality of temperature sensors for monitoring the temperature change of the copper plate during the electron beam cladding process; A temperature control component is located directly below the clamping component and is used to increase or decrease the temperature of the copper plate; The clamping assembly includes a back plate and a plurality of first tightening units for clamping the copper plate, each of the first tightening units is arranged symmetrically with respect to the back plate, the first tightening unit includes a first support plate and a tightening block, the first support plate is detachably mounted on the back plate, at least two first tightening bolts are threadedly connected to the first support plate, the tightening block is located between the copper plate and the first tightening bolts, the temperature sensor is embedded in the tightening block, and when the copper plate is fixed on the clamping assembly, the tightening block is clamped between the copper plate and the first tightening bolts; The temperature control component includes an electric heating plate and several supporting units for supporting the electric heating plate. The electric heating plate is provided with a compressed air inlet, a compressed air outlet and an electric heating wire connection port. The supporting units are arranged in a straight line with equal intervals. The supporting unit includes a bottom plate strip. Support blocks are detachably mounted on both ends of the bottom plate strip. The support blocks are arranged perpendicular to the bottom plate strip. The electric heating plate is arranged in a accommodating space surrounded by the support blocks and the bottom plate strip.

2. The special fixture for preparing electron beam cladding functional coating according to claim 1, characterized in that: It also includes a transition copper bar. When the copper plate is fixed on the clamping assembly, the transition copper bar is clamped between the copper plate and the top tightening block, and the top surface of the transition copper bar and the copper plate are on the same horizontal plane.

3. The special fixture for preparing electron beam cladding functional coating according to claim 1 or 2, characterized in that: It also includes two detection copper bars, a first tightening unit is located between the two detection copper bars, a second support plate corresponding to the detection copper bars is detachably installed on the back plate, at least two second tightening bolts are threadedly connected on the second support plate, a groove is provided on the inner end of the top end of the detection copper bar, when the copper plate is fixed on the clamping assembly, the detection copper bar is clamped between the copper plate and the second tightening bolt, and the top surfaces of the detection copper bar and the copper plate are on the same horizontal plane.

4. The special fixture for preparing electron beam cladding functional coating according to claim 1, characterized in that: The four corners of the back plate are all provided with hanging ears.

5. The special tooling fixture for preparing electron beam cladding functional coating according to claim 1, characterized in that: It also includes a number of pressure plate units corresponding to the support blocks one by one, the pressure plate unit includes a pressure plate and a sliding column, the pressure plate is sleeved on the sliding column, the sliding column is detachably mounted on the bottom plate bar and the two are perpendicular to each other, the clamping assembly is located between the pressure plate and the electric heating plate, and the sliding column is threadedly connected with a tightening nut for clamping the clamping assembly between the pressure plate and the electric heating plate.

6. The special fixture for preparing electron beam cladding functional coating according to claim 1 or 5, characterized in that: It also includes a heat storage shell, which is a box structure with an open top and a closed bottom. The clamping assembly, the motor hot plate, the support unit and the temperature measuring assembly are all located in the cavity of the heat storage shell. A through hole is opened on the heat storage shell, and the compressed air inlet, the compressed air outlet and the electric heating wire connection port are all on the same end of the heat storage shell as the through hole.

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