Double-cavity vacuum coating equipment for metal piece

Abstract

Double-cavity vacuum coating equipment for metal parts comprises a vacuum coating machine body which comprises two independent cavities; the top of each cavity is provided with one vacuum pump assembly; an extraction opening of the vacuum pump assembly is communicated with the interior of the cavity through a pipeline; the multi-point evaporation source is arranged at the bottom in each cavity; each cavity is provided with a clamp used for clamping a metal piece; the top of each cavity is provided with the corresponding clamp driving assembly. The clamp driving assembly is connected with the clamp and used for driving the clamp to rotate. The double-cavity vacuum coating equipment for the metal piece is provided with two independent cavities, so that the production efficiency is improved, the process interference is reduced, the coating quality is ensured, the equipment is convenient to maintain and manage, the uniformity of coating is further improved by optimizing a vacuum system, an evaporation source and a clamping piece, and a better coating effect can be obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum coating technology field, concretely relates to a double -cavity vacuum coating equipment for metal spare. BACKGROUND

[0002] In the field of metal processing, vacuum coating technology as an important means that can significantly improve the performance and appearance of metal parts has been widely used. By plating a specific film on the surface of the metal part, its wear resistance, corrosion resistance can be enhanced, and it can also be endowed with unique optical, electrical and other properties.

[0003] At present, single-cavity vacuum coating equipment gradually exposes many limitations in actual production process. On the one hand, the production efficiency is low, and it takes a long time period to complete the coating of each batch of metal parts, which cannot meet the growing demand of large-scale production. On the other hand, the interference problem between different coating processes is more prominent. Since all operations are completed in the same chamber, the difference in parameters required by different processes may affect each other, resulting in unstable coating quality and difficulty in meeting the requirements of high-precision and high-quality coating.

[0004] In addition, the single-cavity equipment also has inconvenience in maintenance and management. Once a fault occurs in the chamber, the entire production process will be forced to stop, and the repair time will seriously affect the production progress.

[0005] In order to solve the above problems, the utility model designs a double-cavity vacuum coating equipment for metal parts, which is provided with two independent chambers, each chamber is equipped with an independent vacuum system, an evaporation source, a clamp and a clamp driving assembly. This design fundamentally improves the production efficiency, two chambers can perform the same or different operations at the same time, and the independent chambers effectively reduce the process interference, can better guarantee the coating quality, and are more convenient in equipment maintenance and management. When one chamber fails, the other chamber can operate normally. In addition, through the optimization of the vacuum system, the evaporation source and the clamping piece, the uniformity of the coating is further improved, better coating effect can be obtained, and the production demand of high quality and high efficiency of metal coating in modern industry is met. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the above shortcomings, and provides a double-cavity vacuum coating equipment for metal parts, which has two independent chambers, improves the production efficiency, reduces the process interference, guarantees the coating quality, is convenient for equipment maintenance and management, optimizes the vacuum system, the evaporation source and the clamping piece, further improves the uniformity of the coating, can obtain better coating effect, and has wide application prospect.

[0007] Technical scheme: a double-cavity vacuum coating equipment for metal parts, comprising:

[0008] The vacuum coating machine body comprises two independent chambers;

[0009] A vacuum pump assembly is arranged at the top of each chamber; the air outlet of the vacuum pump assembly is connected with the chamber through a pipeline;

[0010] A multi-point evaporation source is arranged at the bottom of each chamber;

[0011] A clamp is arranged in each chamber for clamping metal parts;

[0012] A clamp driving assembly is arranged at the top of each chamber; the clamp driving assembly is connected with the clamp for driving the rotation of the clamp.

[0013] The double-chamber vacuum coating equipment for metal parts has two independent chambers, and the same or different operations can be simultaneously performed, so that the production efficiency can be significantly improved compared with single-chamber equipment.

[0014] In the case of large production batches, two independent chambers can simultaneously perform vacuum coating operations, or when one chamber is performing the coating process of metal parts, the other chamber can perform loading, unloading or pretreatment preparation, which can greatly reduce the idle time of the equipment and improve the overall production efficiency. Each chamber has an independent vacuum system, which can better control the vacuum degree and gas environment in the chamber. In the evaporation coating process, a stable vacuum environment is crucial for coating quality. Independent chambers can avoid mutual interference between different processes, prevent cross contamination of impurities or gases, and ensure the consistency and stability of each coating quality. Different metal parts may require different coating parameters and process conditions. The double-chamber design allows different process parameters to be set in different chambers to meet diverse production needs. At the same time, when the process parameters of one chamber are adjusted, the normal production of the other chamber will not be affected, avoiding the influence of process fluctuations on coating quality.

[0015] If one of the chambers fails or needs maintenance, the other chamber can continue to work normally, without causing the entire production process to be interrupted. This allows the faulty chamber to be repaired and debugged without affecting production, improving the reliability and utilization of the equipment.

[0016] The multi-point evaporation source makes the relative position of the metal parts more reasonable, ensuring that the evaporated coating material can be uniformly deposited on the surface of the metal parts. The metal parts are clamped on the clamp, and during the coating process, the clamp is driven to rotate by the clamp driving assembly, further improving the uniformity of the coating.

[0017] Further, the double-cavity vacuum coating device for metal parts has a sealing door rotatably arranged at the front side of each cavity, and an observation window is arranged on the sealing door.

[0018] The observation window is made of special transparent material, which can ensure the vacuum sealing and facilitate the operator to observe the coating condition of the metal parts in the device during operation.

[0019] Further, the double-cavity vacuum coating device for metal parts has a vacuum pump assembly composed of a mechanical pump and a molecular pump.

[0020] The mechanical pump is used as a front-stage pump, and the pressure in the cavity is first reduced to a certain degree, and then the molecular pump continues to reduce the pressure to a higher vacuum degree. The molecular pump makes the gas molecules flow directionally through the high-speed rotating rotor, thereby realizing the extraction of high vacuum. This design can realize efficient air extraction in a wide pressure range. For example, in the initial stage of evaporation coating, the pressure in the cavity is relatively high, and the mechanical pump can quickly reduce the pressure to the working range of the molecular pump, and then the molecular pump can improve the vacuum degree to a higher level, thereby meeting the requirement of high vacuum environment for coating and improving the coating quality.

[0021] Further, the double-cavity vacuum coating device for metal parts has a multi-point evaporation source composed of a plurality of small evaporation sources, and the evaporation sources are uniformly distributed at the bottom of the cavity.

[0022] The single evaporation source is replaced by a plurality of small evaporation sources, which are uniformly distributed at the bottom of the cavity or other suitable positions, so that the coating material can be evaporated from multiple positions at the same time, thereby improving the uniformity of the coating. Especially for large or complex-shaped metal parts, the multi-point evaporation source can avoid the problem of uneven coating caused by the difference in distance and angle between the evaporation source and the metal part.

[0023] Further, the double-cavity vacuum coating device for metal parts has a clamp, which comprises:

[0024] A clamping frame is connected with the clamp driving assembly.

[0025] A double-head screw is rotatably arranged in the clamping frame, and a knob is fixedly arranged at the top end of the double-head screw.

[0026] A clamping seat is slidably arranged in the clamping frame, and the clamping seat is arranged outside the double-head screw through threaded connection.

[0027] A clamping plate is fixedly arranged outside the clamping seat, and the clamping plate and the clamping seat are symmetrically arranged with two groups.

[0028] A fixed rod is fixedly arranged inside the clamping frame;

[0029] A sliding seat is slidably arranged outside the fixed rod; the sliding seat is fixedly arranged outside the clamping plate.

[0030] The metal piece is placed between the two sets of clamping plates, and then the double-end screw is rotated, the double-end screw drives the two sets of clamping plates to move in opposite directions through the clamping seat and the fixed rod and the sliding seat, so that the two sets of clamping plates clamp and fix the metal piece. The above design can fix metal pieces of different sizes.

[0031] Further, the double-cavity vacuum coating equipment for metal pieces comprises:

[0032] A motor is arranged at the top of the cavity; a small conical gear is fixedly arranged at the shaft end of the motor;

[0033] A drive shaft is rotatably arranged on the inner wall of the top of the cavity; a large conical gear is fixedly arranged at the top end of the drive shaft; the large conical gear is engaged with the small conical gear at the shaft end of the motor; the bottom end of the drive shaft is fixedly connected with the clamping frame.

[0034] The motor is started, the shaft of the motor drives the small conical gear to rotate, the small conical gear drives the drive shaft to rotate through the large conical gear, so that the clamping frame drives the metal piece to rotate. The above design is conducive to enhancing the coating effect of the metal piece.

[0035] Further, the double-cavity vacuum coating equipment for metal pieces, the inner wall surface of the cavity is coated with an anti-pollution coating.

[0036] The anti-pollution coating is coated on the inner wall surface of the cavity to prevent the deposition of coating materials on the inner wall of the cavity, thereby reducing the cleaning frequency of the cavity. For example, an aluminum oxide (Al2O3) coating, a yttrium-stabilized zirconium oxide (YSZ) coating, a stainless steel alloy coating, etc.

[0037] The double-cavity vacuum coating equipment for metal pieces has the advantages that: the overall layout is reasonable, there are two independent cavities, the same or different operations can be performed at the same time, compared with a single-cavity device, the production efficiency is improved, the process interference is effectively reduced by the independent cavities, the coating quality can be better guaranteed, the equipment maintenance and management are more convenient, and the normal operation of one cavity is not affected when the other cavity fails; the uniformity of the coating is further improved by optimizing the vacuum system, the evaporation source and the clamping piece, a better coating effect can be obtained, the production demand for high-quality and high-efficiency coating of metal pieces is met, and the application prospect is wide. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1The utility model discloses a double cavity vacuum coating equipment for metal piece's structure schematic view.

[0039] Figure 2 The utility model discloses a double cavity vacuum coating equipment for metal piece's internal structure schematic view.

[0040] Figure 3 The utility model discloses a double cavity vacuum coating equipment for metal piece's clamp structure schematic view.

[0041] In the drawing: vacuum coating machine body 1, chamber 11, sealing door 101, observation window 102, vacuum pump assembly 2, multi-point evaporation source 3, evaporation source 31, clamp 4, clamping frame 41, double head screw rod 42, knob 421, clamping seat 43, clamping plate 44, fixed rod 45, sliding seat 46, clamp drive assembly 5, motor 51, drive shaft 52. DETAILED DESCRIPTION

[0042] The utility model discloses further illustrate in combination with the accompanying drawings, Figure 1 、 2 , example 1, example 2.

[0043] Example 1

[0044] As Figure 1 、 2 indicated, the double cavity vacuum coating equipment for metal piece, including vacuum coating machine body 1, vacuum pump assembly 2, multi-point evaporation source 3, clamp 4, clamp drive assembly 5.

[0045] Among them, the vacuum coating machine body 1 includes 2 independent chambers 11.Two independent chambers 11 can carry out vacuum coating operation simultaneously or alternately, or, when one chamber 11 is carrying out the coating process of metal piece, another chamber 11 can carry out charging, discharging or pretreatment and so on preparation work, so also can greatly reduce the idle time of equipment, improve the overall production efficiency.

[0046] Further, the sealing door 101 of chamber 11 is provided with observation window 102, and observation window 102 is made of special transparent material, which can ensure the vacuum sealing and facilitate the operator to observe the coating condition of internal metal piece during the operation of the equipment.

[0047] Among them, the top of each chamber 11 is provided with vacuum pump assembly 2, and the air outlet of vacuum pump assembly 2 is communicated with the inside of chamber 11 through pipeline.Each chamber 11 has an independent vacuum system, which can better control the vacuum degree and gas environment in the chamber.

[0048] Further, the vacuum pump assembly 2 of the embodiment adopts a combination of a mechanical pump and a molecular pump, the mechanical pump is used as a backing pump, the chamber pressure is first extracted to a certain degree, and then the molecular pump continues to reduce the pressure to a higher vacuum degree.

[0049] Each bottom of the chambers 11 is provided with a multi-point evaporation source 3.The single evaporation source is replaced by a plurality of small evaporation sources 31 which are uniformly distributed on the bottom of the chamber 11 or other suitable positions, so that the coating material is evaporated from multiple positions at the same time, and the uniformity of coating is improved.

[0050] Each top of the chambers 11 is provided with a clamp driving assembly 5, and each chamber 11 is provided with a clamp 4 for clamping the metal piece, and the clamp driving assembly 5 is connected with the clamp 4 for driving the rotation of the clamp 4.

[0051] Embodiment 2

[0052] Based on the above structural basis of embodiment 1, as shown in Figure 1 , 2

[0053] As shown in Figure 3 , the double-cavity vacuum coating equipment for metal pieces comprises a clamp driving assembly 5 and a clamp 4.

[0054] Further, the clamp driving assembly 5 comprises a motor 51, a small conical gear, a driving shaft 52 and a large conical gear.

[0055] Further, the inner wall surface of the chamber 11 is coated with an anti-pollution coating to prevent the deposition of the coating material on the inner wall of the chamber and to reduce the cleaning frequency of the chamber.

[0056] The above merely describes preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements without departing from the principles of the present application, and these improvements should also be considered within the protection scope of the present application.

Claims

1. A dual-cavity vacuum coating apparatus for metal parts, characterized in that, include: Vacuum coating machine body (1), the vacuum coating machine body (1) includes 2 independent chambers (11); A vacuum pump assembly (2) is provided on the top of each of the chambers (11); the air extraction port of the vacuum pump assembly (2) is connected to the interior of the chamber (11) through a pipe; Multi-point evaporation source (3), with a multi-point evaporation source (3) provided at the bottom of each chamber (11); Clamps (4), each of the chambers (11) is provided with clamps (4) for clamping metal parts; A clamp drive assembly (5) is provided on the top of each of the chambers (11); the clamp drive assembly (5) is connected to the clamp (4) for driving the clamp (4) to rotate.

2. The dual-cavity vacuum coating equipment for metal parts according to claim 1, characterized in that, Each of the chambers (11) is rotatably provided with a sealing door (101) on the front side, and an observation window (102) is provided on the sealing door (101).

3. The dual-cavity vacuum coating equipment for metal parts according to claim 1, characterized in that, The vacuum pump assembly (2) is a combination of a mechanical pump and a molecular pump.

4. The dual-cavity vacuum coating equipment for metal parts according to claim 1, characterized in that, The multi-point evaporation source (3) consists of several small evaporation sources (31), which are evenly distributed at the bottom of the chamber (11).

5. The dual-cavity vacuum coating equipment for metal parts according to claim 1, characterized in that, The clamp (4) includes: A clamping frame (41) is connected to a clamping drive assembly (5); A double-headed screw (42) is rotatably mounted inside the clamping frame (41); a knob (421) is fixedly mounted on the top end of the double-headed screw (42). The clamping seat (43) is slidably disposed inside the clamping frame (41); the clamping seat (43) is disposed on the outside of the double-ended screw (42) by a threaded connection; The clamping plate (44) is fixedly provided on the outside of the clamping seat (43); the clamping plate (44) and the clamping seat (43) are both arranged in two sets symmetrically; Fixed rod (45), the clamping frame (41) is fixedly provided with a fixed rod (45); A sliding seat (46) is slidably disposed on the outside of the fixed rod (45); the sliding seat (46) is fixedly disposed on the outside of the clamping plate (44).

6. The dual-cavity vacuum coating equipment for metal parts according to claim 5, characterized in that, The clamp drive assembly (5) includes: The motor (51) is located at the top of the chamber (11); a small bevel gear is fixedly installed on the shaft end of the motor (51); The drive shaft (52) is rotatably mounted on the inner wall of the top of the chamber (11); a large bevel gear is fixedly mounted on the top of the drive shaft (52); the large bevel gear meshes with a small bevel gear at the end of the motor (51) shaft; and the bottom of the drive shaft (52) is fixedly connected to the clamping frame (41).

7. The dual-cavity vacuum coating equipment for metal parts according to claim 1, characterized in that, The inner wall surface of the chamber (11) is coated with an anti-pollution coating.

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