Laser cladding interlayer cooling device for multi-layer cladding

Abstract

The utility model relates to the field of laser cladding processing, and discloses a multi-layer cladding laser cladding interlayer cooling device which comprises a machine body, a mechanical arm is arranged behind the machine body, a laser welding gun is arranged on the front portion of the mechanical arm, a fixing plate is fixedly connected to the front surface of the machine body, and a second guide plate is arranged at the top end of the fixing plate. And the upper portion of the second guide plate penetrates through and is fixedly connected with a cooling assembly, the cooling assembly comprises a positioning rod, the rear surface of the positioning rod is fixedly connected with an arc-shaped block, and the upper portion of the arc-shaped block is rotationally connected with a positioning ring. According to the cooling device, the arc-shaped block is arranged, the multiple cooling nozzles are installed at the same time, the coverage area of cooling liquid spraying is expanded, meanwhile, the angles of the upper cooling nozzle and the lower cooling nozzle are adjusted, the specific sizes, shapes and actual cooling requirements of different cylindrical machined parts are met, and the coverage range is further expanded; and the cooling uniformity and the cooling effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cladding processing field especially, relates to a kind of laser cladding interlayer cooling devices of multilayer cladding. BACKGROUND

[0002] Laser cladding technology is a kind of metal surface treatment technology, by using high-energy density laser beam, metal powder is melted and deposited on the surface of base material, forming wear-resistant, corrosion-resistant and other characteristics surface coating, widely used in aviation, automobile manufacturing, mould repair, engineering machinery and other industries, for improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance and other properties of workpiece have remarkable effect, can effectively prolong the service life of workpiece, however, in the process of multilayer cladding laser cladding, the temperature of workpiece will rapidly rise after each layer cladding is completed, thus cooling treatment is needed, the existing usually adopts air cooling, water cooling or liquid nitrogen cooling and so on.

[0003] And in the process of liquid cooling, cooling liquid is usually sprayed to the surface of cladding layer by spray head, however, the current generally uses fixed spray head design, when facing cylindrical workpiece, since spray head is fixed and the surface of cylinder is curved, cooling liquid is difficult to uniformly cover the outer surface of cylinder, leading to poor cooling uniformity, reduces cooling efficiency, so that part of area can produce stress concentration due to excessive cooling, while other areas can not achieve the expected cooling effect due to insufficient cooling, therefore, a kind of laser cladding interlayer cooling devices of multilayer cladding is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of laser cladding interlayer cooling devices of multilayer cladding, to improve the problem of "fixed spray head design when cooling cylindrical workpiece, cooling uniformity is poor" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of laser cladding interlayer cooling devices of multilayer cladding, including machine body, the rear of the machine body is provided with manipulator, the front of the manipulator is provided with laser welding gun, the front surface of the machine body is fixedly connected with fixed plate, the top of the fixed plate is provided with guide plate two, the upper portion of the guide plate two is penetrated and fixedly connected with cooling assembly, the cooling assembly includes positioning rod, the rear surface of the positioning rod is fixedly connected with arc block, the upper portion of the arc block is rotatably connected with positioning ring, the middle part of the positioning ring is fixedly connected with cooling spray head, the front outer wall of the cooling spray head is fixedly connected with guide ring, the bottom end of the guide ring is hinged with connecting rod, the bottom end of the connecting rod is hinged with guide block, the middle part of the positioning rod is rotatably connected with threaded rotating rod, the front surface of the threaded rotating rod is fixedly connected with rotating disc.

[0006] As a further description of the above technical scheme:

[0007] The top end of the fixed plate is slidably connected with a guide assembly, the guide assembly comprises a guide plate one, and a sliding groove is formed in the middle top end of the guide plate one.

[0008] As a further description of the above technical solution:

[0009] The positioning rod penetrates and is fixedly connected to the upper portion of the guide plate two, and the arc-shaped block is arranged in an arc shape.

[0010] As a further description of the above technical solution:

[0011] The connecting rod is arranged in an inclined shape, and the guide blocks penetrate and are slidably connected to the top end and the bottom end of the positioning rod.

[0012] As a further description of the above technical solution:

[0013] The guide blocks are threadedly connected to the outer wall threads of the threaded rotating rod, the cooling nozzles penetrate and rotate in the middle portion of the arc-shaped block, the cooling nozzles are provided in multiple groups, and the multiple groups of cooling nozzles are uniformly arranged on the rear surface of the arc-shaped block.

[0014] As a further description of the above technical solution:

[0015] The inner wall bottom end of the sliding groove is provided with a plurality of limiting grooves, and the front surface lower portion of the guide plate two is slidably connected with a push block.

[0016] As a further description of the above technical solution:

[0017] The rear bottom end of the push block is fixedly connected with a limiting rod, and the limiting rod is slidably connected to the bottom end of the guide plate two.

[0018] As a further description of the above technical solution:

[0019] The top end of the push block is fixedly connected with a spring, the other end of the spring is fixedly connected to the lower portion inner wall top end of the guide plate two, and the limiting rod is clamped in the inner wall of the limiting groove.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、 the utility model discloses a plurality of cooling nozzles are installed simultaneously through the arc-shaped block, the coverage area of cooling liquid spraying is expanded, and the angles of the upper and lower two groups of cooling nozzles are adjusted, the specific size, shape and actual cooling demand of different cylindrical workpieces are adapted, the coverage range is further improved, and the uniformity and cooling effect of cooling are improved.

[0022] 2、The utility model discloses, through the upward pull knob and drive the position limiting rod slide out limit groove, can fast -adjusting guide plate no. 2 and arc -shaped piece and the position of cooling spray head, can adjust the distance between cooling spray head and workpiece at any time, can adjust according to actual demand at any time, can make cooling liquid with the best spray distance and the coverage range spray on the surface of workpiece, further improve cooling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure section view schematic diagram of guide plate no. 2 and guide plate no. 1 in the utility model;

[0025] Figure 3 It is the three-dimensional structure section view schematic diagram of guide plate no. 2, positioning rod and arc -shaped piece in the utility model.

[0026] LEGEND:

[0027] 1, machine body;2, laser welding gun;3, cooling assembly;4, fixed plate;5, guide assembly;31, positioning rod;32, cooling spray head;33, guide ring;34, connecting rod;35, guide block;36, threaded rotating rod;37, positioning ring;38, arc -shaped piece;51, guide plate no. 1;52, guide plate no. 2;53, spring;54, position limiting rod;55, limit groove;56, knob. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] REFERENCE Figure 1 , Figure 2 and Figure 3The utility model provides a kind of embodiment of the utility model: a kind of multi-layer cladding's laser cladding interlayer cooling device, including machine body 1, machine body 1 is laser cladding machine body, laser cladding machine integrates the various core systems and equipment required in laser cladding process, ensure that laser cladding process can normally, orderly, when laser cladding operation, machine body 1 can maintain its stability, reduce the interference of external factors to cladding process, guarantee the precision and quality of laser cladding, laser cladding machine is prior art, and in the technical personnel of this field can be realized, since it is prior art, so in this case, it is not described too much, the rear of machine body 1 is provided with manipulator, manipulator can accurately control the position and movement trajectory of laser welding torch 2 according to the requirement of laser cladding process, in laser cladding process, manipulator can realize multidimensional movement, including translation, rotation etc., so that different shape, size workpiece can be carried out all-round laser cladding operation.

[0030] Further, the front of manipulator is provided with laser welding torch 2, laser welding torch 2 is installed in the front of manipulator, and is the core execution component of laser cladding.It makes metal powder or other cladding materials melt in an instant by emitting high-energy density laser beam, and forms firm metallurgical combination with workpiece surface, so as to realize the modification and strengthening of workpiece surface, the front surface of machine body 1 is fixedly connected with fixed plate 4 for providing support, the top end of fixed plate 4 is provided with guide plate two 52 for supporting cooling assembly 3, the upper portion of guide plate two 52 is penetrated and fixedly connected with cooling assembly 3, which can spray cooling liquid for cooling, cooling assembly 3 includes positioning rod 31 for providing support and positioning.

[0031] Further, the rear surface of positioning rod 31 is fixedly connected with arc block 38, a plurality of cooling nozzles 32 are uniformly arranged on the rear surface of arc block 38, and the cooling nozzles 32 are arranged in an arc shape, which can better surround the specific cylindrical shape of the workpiece, improve the coverage area of the cooling liquid spray, and ensure that the cooling liquid can be uniformly sprayed on the surface of the cylindrical workpiece, thereby achieving more uniform cooling effect, the upper portion of arc block 38 is rotatably connected with positioning ring 37, the positioning ring 37 supports the cooling nozzles 32 and provides the cooling nozzles 32 with rotational freedom, by rotating the positioning ring 37, the angle of the cooling nozzles 32 can be adjusted, so that the cooling liquid can be sprayed to the workpiece surface at different angles, adapt to different cooling needs, improve the flexibility and accuracy of cooling.

[0032] Further, the middle part of the positioning ring 37 is fixedly connected with a cooling nozzle 32 for spraying cooling liquid to the cladding layer, the front outer wall of the cooling nozzle 32 is fixedly connected with a guide ring 33 for driving the cooling nozzle 32 to rotate for angle adjustment, the bottom end of the guide ring 33 is hingedly connected with a connecting rod 34 for pulling the guide ring 33 to move, the bottom end of the connecting rod 34 is hingedly connected with a guide block 35 for pulling the bottom end of the connecting rod 34 to move forward, the middle part of the positioning rod 31 is rotationally connected with a threaded rotating rod 36 which is threadedly connected with the guide block 35 so as to drive the guide block 35 to move forward or backward, and the front surface of the threaded rotating rod 36 is fixedly connected with a rotating disc for conveniently driving the threaded rotating rod 36 to rotate.

[0033] With reference to Figure 1 , Figure 2 and Figure 3 , the top end of the fixed plate 4 is slidingly connected with a guide assembly 5 for adjusting the forward and backward movement of the guide plate two 52, the guide assembly 5 comprises a guide plate one 51 for providing support, the middle part of the top end of the guide plate one 51 is provided with a sliding groove for supporting the bottom of the guide plate two 52, the bottom of the guide plate two 52 is provided in a T shape and is slidingly connected to the inner wall of the sliding groove stably, and the guide plate two 52 is slidingly connected to the inner wall of the middle part of the top end of the sliding groove of the guide plate one 51.

[0034] With reference to Figure 1 , Figure 2 and Figure 3 , the positioning rod 31 penetrates and is fixedly connected to the upper part of the guide plate two 52, the arc-shaped block 38 is provided in an arc shape, and the connecting rod 34 is provided in an inclined shape, so that when the guide block 35 moves, the bottom end of the inclined connecting rod 34 is pulled to move forward, the top end of the connecting rod 34 is pulled to move downward to drive the cooling nozzle 32 to rotate, the guide block 35 penetrates and is slidingly connected to the top end and the bottom end of the positioning rod 31, the guide block 35 is threadedly connected to the outer wall thread of the threaded rotating rod 36, and the cooling nozzle 32 penetrates and rotates in the middle part of the arc-shaped block 38.

[0035] Further, the cooling nozzle 32 is provided in multiple groups, and the multiple groups of cooling nozzles 32 are uniformly arranged on the rear surface of the arc-shaped block 38, the multiple groups of cooling nozzles 32 can improve the coverage area of the sprayed cooling liquid, and the upper and lower two cooling nozzles 32 can be adjusted in angle as needed to adapt to higher cooling requirements, and the cooling assembly 3 and the guide assembly 5 are each provided in two groups, the two groups of cooling assemblies 3 and guide assemblies 5 are arranged on the front and rear of the machine body 1 with the center line of the machine body 1 as the axis of symmetry, so as to spray the cooling liquid all around the cylindrical workpiece to improve the cooling effect.

[0036] With reference to Figure 1 , Figure 2 and Figure 3The inner wall bottom end of the chute is provided with a plurality of limiting grooves 55, and the limiting grooves 55 cooperate with the limiting rods 54 to limit the guide plate two 52 at different positions. The front surface of the guide plate two 52 is slidably connected with a push block 56 for moving the limiting rod 54 upward. The rear bottom end of the push block 56 is fixedly connected with the limiting rod 54 for limiting the guide plate two 52. The limiting rod 54 is slidably connected to the bottom end of the guide plate two 52. The top end of the push block 56 is fixedly connected with a spring 53, and the other end of the spring 53 is fixedly connected to the lower inner wall top end of the guide plate two 52. The limiting rod 54 is clamped to the inner wall of the limiting groove 55. When the limiting rod 54 moves upward, the push block 56 is pushed upward to compress the spring 53. The reverse force of the compressed spring 53 can quickly reset the limiting rod 54 to slide into the limiting groove 55, and quickly limit the guide plate two 52.

[0037] Working principle: in use, first, the power supply and switch of the electric equipment in the device are connected, a plurality of cooling nozzles 32 are uniformly arranged on the rear surface of the arc-shaped block 38, and the unique arc-shaped design is matched, so that the plurality of cooling nozzles 32 arranged on the rear surface can better surround the cylindrical workpiece to spray cooling liquid, effectively improve the cooling liquid spraying coverage area, ensure that the cooling liquid uniformly acts on the workpiece surface, realize more uniform cooling effect, and when the rotating disc drives the threaded rotating rod 36 to rotate, the guide block 35 is threadedly connected to the outer wall thread of the threaded rotating rod 36, so as to drive the guide block 35 to move forward along the middle part of the positioning rod 31. Since the connecting rod 34 is arranged in an inclined manner, the guide block 35 moves to pull the bottom end of the connecting rod 34 to move forward, so that the top end of the connecting rod 34 moves downward, drives the hinged guide ring 33 to move downward, so that the cooling nozzle 32 and the positioning ring 37 rotate, the angle of the cooling nozzle 32 is adjusted, the cooling liquid is sprayed to the workpiece surface at different angles, different cooling requirements are met, and the flexibility and accuracy of cooling are improved.

[0038] When it is needed to adjust the distance between the cooling nozzle 32 and the workpiece according to the cooling requirement, the push block 56 can be pulled upward to press the spring 53 at this time, the limiting rod 54 is driven to move upward, and the limiting rod 54 slides out of the limiting slot 55, at this time, the guide plate two 52 can slide freely in the sliding groove of the guide plate one 51, thereby driving the cooling assembly 3 to move to the required position, after the push block 56 is released, the reverse force generated by the spring 53 being pressed makes the limiting rod 54 quickly reset, and the limiting rod 54 is re-clamped into the limiting slot 55, the guide plate two 52 is limited, and the stability of the cooling assembly 3 in the working process is ensured, so that the distance between the cooling nozzle 32 and the workpiece can be adjusted at any time, the actual requirement can be adjusted at any time, the cooling liquid can be sprayed on the surface of the workpiece at the best spraying distance and coverage, the cooling efficiency is further improved, the cooling assembly 3 and the guide assembly 5 are both provided with two groups, the center line of the machine body 1 is taken as the symmetry axis, and the two groups are arranged at the front and rear of the machine body 1 respectively, so that the cylindrical workpiece can be subjected to omnibearing cooling liquid spraying, the cooling effect is further improved, and the cooling requirement between laser cladding layers of multi-layer cladding is met.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A multi-layer cladding inter-laser cladding layer cooling device comprising a machine body (1), characterized in that: The rear of the machine body (1) is provided with a mechanical hand, the front of the mechanical hand is provided with a laser welding gun (2), the front surface of the machine body (1) is fixedly connected with a fixed plate (4), the top end of the fixed plate (4) is provided with a guide plate two (52), the upper part of the guide plate two (52) is penetrated and fixedly connected with a cooling assembly (3), the cooling assembly (3) comprises a positioning rod (31), the rear surface of the positioning rod (31) is fixedly connected with an arc block (38), the upper part of the arc block (38) is rotatably connected with a positioning ring (37), the middle part of the positioning ring (37) is fixedly connected with a cooling nozzle (32), the front outer wall of the cooling nozzle (32) is fixedly connected with a guide ring (33), the bottom end of the guide ring (33) is hingedly connected with a connecting rod (34), the bottom end of the connecting rod (34) is hingedly connected with a guide block (35), the middle part of the positioning rod (31) is rotatably connected with a threaded rotating rod (36), and the front surface of the threaded rotating rod (36) is fixedly connected with a rotating disc.

2. A multi-layered cladding inter-layer cooling device for laser cladding layers according to claim 1, characterized in that: The top end of the fixed plate (4) is slidably connected with a guide assembly (5), the guide assembly (5) comprises a guide plate one (51), and the middle top end of the guide plate one (51) is provided with a sliding groove.

3. A multi-layered cladding inter-layer cooling device for laser cladding layers according to claim 1, characterized in that: The positioning rod (31) penetrates and is fixedly connected to the upper part of the guide plate two (52), and the arc block (38) is in an arc shape.

4. A multi-layered laser cladding inter-layer cooling device according to claim 3, wherein: The connecting rod (34) is in an inclined shape, and the guide block (35) penetrates and is slidably connected to the top end and the bottom end of the positioning rod (31).

5. A multi-layered laser cladding interlayer cooling device according to claim 3, wherein: The guide block (35) is threadedly connected to the outer wall thread of the threaded rotating rod (36), the cooling nozzle (32) penetrates and rotates in the middle part of the arc block (38), the cooling nozzle (32) is provided in multiple groups, and the multiple groups of the cooling nozzle (32) are uniformly arranged on the rear surface of the arc block (38).

6. A multi-layered cladding inter-layer cooling device for laser cladding layers according to claim 2, wherein: A limiting groove (55) is formed in the inner wall bottom end of the sliding groove, and multiple groups of limiting grooves (55) are formed, and the front surface of the guide plate two (52) is slidably connected with a push block (56) at the lower part.

7. A multi-layered laser cladding inter-layer cooling device according to claim 6, wherein: The rear bottom end of the push block (56) is fixedly connected with a limiting rod (54), and the limiting rod (54) is slidably connected to the bottom end of the guide plate two (52).

8. A multi-layered laser cladding inter-layer cooling device according to claim 7, wherein: The top end of the push block (56) is fixedly connected with a spring (53), the other end of the spring (53) is fixedly connected to the lower inner wall top end of the guide plate two (52), and the limiting rod (54) is clamped in the limiting groove (55).

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