Composite cladding equipment for cladding tungsten carbide hard alloy particles on surface of steel plate

Abstract

The utility model provides composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate, which comprises a gantry truss, a walking track, a cooling vehicle, a tungsten carbide particle presetting device and a plasma cladding torch device, and a first Y-axis displacement mechanism and a second Y-axis displacement mechanism are arranged on a Y-axis track; the first Y-axis displacement mechanism is provided with a first Y-axis moving part, the first Y-axis moving part is provided with a first X-axis displacement mechanism, the first X-axis displacement mechanism is provided with a first X-axis moving part, the first X-axis moving part is provided with a first Z-axis displacement mechanism, the first Z-axis displacement mechanism is provided with a first Z-axis moving part, and the tungsten carbide particle presetting device is installed on the first Z-axis moving part. According to the utility model, a truss type structure is adopted, mechanisms for executing material supply and cladding actions are arranged on the truss, and the two executing mechanisms can respectively carry out three-axis movement control, so that cladding forming of various materials on the surface of a steel plate can be completed at one time.

Description

Technical Field

[0001] The utility model relates to plasma cladding equipment, in particular to composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate. Background Art

[0002] The current mainstream process for welding tungsten carbide particles evenly on the surface of steel parts is brazing technology using induction heating. The heat source structure of induction heating limits the shape of the parts to be too large.

[0003] In some mining equipment, large-sized wear-resistant plates are often used. These wear-resistant plates have large plane dimensions. In order to increase the service life of the wear-resistant plates, uniformly welding tungsten carbide cemented carbide particles on the surface of these wear-resistant plates is an ideal solution.

[0004] At present, plasma cladding technology is generally used to uniformly weld tungsten carbide particles on the surface of large-size wear-resistant plates. However, when plasma cladding is used to weld tungsten carbide particles, a higher welding temperature must be used to ensure welding strength. Too high a temperature causes the metal cobalt in the tungsten carbide particles to diffuse into the steel plate, resulting in decobalting, which reduces the wear resistance of the tungsten carbide particles. In addition, as the steel plate melts, there is an uneven sedimentation of tungsten carbide particles, resulting in uneven thickness of the formed wear-resistant layer and an uneven overall surface.

[0005] Taking the above factors into consideration, our company has developed a composite cladding process for cladding tungsten carbide particles on the surface of steel plates. This process requires that the tungsten carbide particles be evenly laid on the welding material on the surface of the workpiece in advance, and then the alloy powder, welding material and tungsten carbide particles are metallurgically combined on the surface of the workpiece through a plasma cladding torch.

[0006] According to the above process, the existing plasma cladding equipment has the following problems: First, the cooling device of the existing plasma cladding is directly fixed on the workbench, which is affected by the structure of the machine tool and the installation of larger workpieces is limited; Second, because a variety of materials are used during cladding, and the storage and transportation structures of each material are different, the structure of the existing three-axis plasma cladding equipment cannot meet the requirements of one-time cladding molding. Utility Model Content

[0007] In response to the problems raised by the background technology, the purpose of the utility model is to provide a composite cladding equipment for cladding tungsten carbide cemented carbide particles on the surface of a steel plate. The overall design of the equipment is a truss structure, which can realize one-time cladding of multiple materials on the surface of the steel plate by running dual three-axis movements on the truss.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A composite cladding device for cladding tungsten carbide hard alloy particles on the surface of a steel plate, comprising a gantry truss, a travel track, a cooling car, a tungsten carbide particle pre-setting device and a plasma cladding torch device, wherein the gantry truss is provided with a Y-axis track in the upper Y-axis direction, the travel track is laid below the inside of the gantry truss 1, and the direction of the travel track is parallel to the Y-axis of the gantry truss; the cooling car runs on the travel track, the cooling car has a cooling device, the cooling device comprises a basic platform and a circulating cooling mechanism installed at the bottom of the basic platform, and the circulating cooling mechanism provides circulating cooling for the basic platform;

[0010] The Y-axis track is provided with a first Y-axis displacement mechanism and a second Y-axis displacement mechanism; the first Y-axis displacement mechanism has a first Y-axis moving part, the first Y-axis moving part is provided with a first X-axis displacement mechanism, the first X-axis displacement mechanism has a first X-axis moving part, the first X-axis moving part is provided with a first Z-axis displacement mechanism, the first Z-axis displacement mechanism has a first Z-axis moving part, and the tungsten carbide particle pre-setting device is installed on the first Z-axis moving part;

[0011] The second Y-axis displacement mechanism has a second Y-axis moving part, the second Y-axis moving part is provided with a second X-axis displacement mechanism, the second X-axis displacement mechanism has a second X-axis moving part, the second X-axis moving part is provided with a second Z-axis displacement mechanism, the second Z-axis displacement mechanism has a second Z-axis moving part, and the plasma cladding torch device is installed on the second Z-axis moving part.

[0012] The Y-axis track includes a Y-axis guide rail and a Y-axis rack, the first Y-axis displacement mechanism includes a first Y-axis motor, a first gear and a first Y-axis moving part, the first Y-axis motor is fixedly mounted on the first Y-axis moving part, the first gear is mounted on the main shaft of the first Y-axis motor and meshes with the Y-axis rack, and the first Y-axis moving part is slidably connected to the Y-axis guide rail;

[0013] The second Y-axis displacement mechanism includes a second Y-axis motor, a second gear and a second Y-axis moving part. The second Y-axis motor is fixedly mounted on the second Y-axis moving part. The second gear 802 is mounted on the main shaft of the second Y-axis motor and meshes with the Y-axis rack. The second Y-axis moving part is slidably connected to the Y guide rail.

[0014] The first X-axis displacement mechanism comprises a first X-axis motor, a first fixed part, a first X-axis moving part and a first X-axis lead screw, wherein the first fixed part is mounted on the first Y-axis moving part, the first X-axis lead screw is mounted on the first fixed part, the first X-axis motor is connected to one end of the first X-axis lead screw, and the first X-axis moving part is connected to the first X-axis lead screw through a nut pair;

[0015] The second X-axis displacement mechanism includes a second X-axis motor 1, a second fixed part, a second X-axis movable part and a second X-axis lead screw. The second fixed part is installed on the second Y-axis movable part, the second X-axis lead screw is installed on the second fixed part, the second X-axis motor is connected to one end of the first X-axis lead screw, and the second X-axis movable part is connected to the second X-axis lead screw through a nut pair.

[0016] The first Z-axis displacement mechanism comprises a first base, a first Z-axis motor, a first lead screw, a first Z-axis guide rail and a first Z-axis moving part, wherein the first base is fixedly mounted on the first X-axis moving part of the first X-axis displacement mechanism, both ends of the first lead screw are vertically mounted on the first base through a bearing seat, the first Z-axis motor is connected to the upper end of the first lead screw, the first lead screw is connected to the first Z-axis moving part through a nut pair, and the first Z-axis moving part is slidably connected to the first Z-axis guide rail;

[0017] The tungsten carbide particle presetting device includes a mixing bin, a feeder, a feeder motor and a feeder pipe. The mixing bin is installed on the first Z-axis moving part. The discharge port at the bottom of the mixing bin is connected to the feeder, and the bottom of the feeder is connected to the feeder pipe. The feeder motor drives the feeder to operate.

[0018] The second Z-axis displacement mechanism includes a second base, a second Z-axis motor, a second lead screw, a second Z-axis guide rail and a second Z-axis moving part. The second base is fixedly mounted on the second X-axis moving part of the second X-axis displacement mechanism, and both ends of the second lead screw are vertically mounted on the second base through bearing seats. The second Z-axis motor is connected to the upper end of the second lead screw, and the second lead screw is connected to the second Z-axis moving part through a nut pair, and the second Z-axis moving part is slidably connected to the second Z-axis guide rail.

[0019] A powder feeder is also provided on one side of the gantry truss 1. The powder feeder is connected to the plasma cladding torch device through a pipeline and is used to provide continuous and stable alloy powder to the plasma cladding torch device.

[0020] The utility model has the following beneficial effects: the utility model adopts a truss structure, the mechanisms for executing material supply and cladding actions are arranged on the truss, and the two actuators can perform three-axis movement control respectively, so that multiple materials can be clad and formed on the steel plate surface at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A top view of the overall structure of the present invention;

[0022] Figure 2 It is the overall structural front view of the present invention.

[0023] Figure 3 It is the front view of the first X-axis displacement mechanism.

[0024] Figure 4It is the front view of the second X-axis displacement mechanism.

[0025] Figure 5 It is a schematic diagram of the structure of the tungsten carbide particle presetting device;

[0026] Figure 6 It is a structural schematic diagram of a plasma cladding torch device. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments.

[0028] like Figure 1-6 As shown, the utility model provides a composite cladding device for cladding tungsten carbide hard alloy particles on the surface of a steel plate, comprising a gantry truss 1, a walking track 2, a cooling car 3, a tungsten carbide particle pre-setting device 5 and a plasma cladding torch device 4, wherein the gantry truss 1 is provided with a Y-axis track 6 in the upper Y-axis direction, the walking track 2 is laid below the inside of the gantry truss 1, and the direction of the walking track 2 is parallel to the Y-axis of the gantry truss 1; the cooling car 3 runs on the walking track, and the cooling car 3 has a cooling device, and the cooling device comprises a basic platform and a circulating cooling mechanism installed at the lower part of the basic platform, and the circulating cooling mechanism provides circulating cooling for the basic platform;

[0029] The Y-axis track 6 is provided with a first Y-axis displacement mechanism and a second Y-axis displacement mechanism; the first Y-axis displacement mechanism has a first Y-axis moving part 703, the first Y-axis moving part 703 is provided with a first X-axis displacement mechanism, the first X-axis displacement mechanism has a first X-axis moving part 903, the first X-axis moving part 903 is provided with a first Z-axis displacement mechanism, the first Z-axis displacement mechanism has a first Z-axis moving part 1105, and the tungsten carbide particle pre-setting device 5 is installed on the first Z-axis moving part 1105;

[0030] The second Y-axis displacement mechanism has a second Y-axis moving part 803, the second Y-axis moving part 803 is provided with a second X-axis displacement mechanism, the second X-axis displacement mechanism has a second X-axis moving part 1003, the second X-axis moving part 1003 is provided with a second Z-axis displacement mechanism, the second Z-axis displacement mechanism has a second Z-axis moving part 1205, and the plasma cladding torch device 4 is installed on the second Z-axis moving part 1205.

[0031] In the above structure, the cooling device is a prior art and is therefore not shown in the figure. A brief description is given below: the base platform in the cooling device is a steel plate, the circulating cooling mechanism is a cooling water tank disposed under the steel plate, and the cooling water level in the water tank is in contact with the lower surface of the steel plate.

[0032] The composite cladding equipment proposed by the present invention, the tungsten carbide particle pre-setting device 5 and the plasma cladding torch device 4 are respectively driven by three-axis displacement, which can be combined with numerical control technology to achieve full digital control, fully ensuring that the tungsten carbide hard alloy particles are uniformly pre-set in the U-shaped groove of the special-shaped panel, and the quality of plasma cladding is stable. Furthermore, the cooling car 3 can be a self-driving rail car or a traction rail car to improve the degree of automation.

[0033] The method of using the composite cladding equipment proposed in the present invention is as follows: place the steel plate fixture to be processed on the cooling device of the cooling car 3, send it into the gantry truss 1 along the walking track 2, align the steel plate to be processed, fix it with the fixture, first pre-set the tungsten carbide hard alloy particles through the tungsten carbide particle pre-setting device 5, and then move the tungsten carbide particle pre-setting device 5 to a safe position for plasma cladding. Dual three-axis control, large controllable processing range, by adjusting the Z-axis height, the temperature during plasma cladding can also be adjusted.

[0034] The Y-axis track 6 includes a Y-guide rail 601 and a Y-axis rack 602, and the first Y-axis displacement mechanism includes a first Y-axis motor 701, a first gear 702 and a first Y-axis moving part 703. The first Y-axis motor 701 is fixedly mounted on the first Y-axis moving part 703, the first gear 702 is mounted on the main shaft of the first Y-axis motor 701 and meshes with the Y-axis rack 602, and the first Y-axis moving part 703 is slidably connected to the Y-guide rail 601;

[0035] The second Y-axis displacement mechanism includes a second Y-axis motor 801, a second gear 802 and a second Y-axis moving part 803. The second Y-axis motor 801 is fixedly mounted on the second Y-axis moving part 803. The second gear 802 is mounted on the main shaft of the second Y-axis motor 801 and meshes with the Y-axis rack 602. The second Y-axis moving part 803 is slidably connected to the Y guide rail 601.

[0036] The first X-axis displacement mechanism includes a first X-axis motor 901, a first fixed portion 902, a first X-axis moving portion 903 and a first X-axis lead screw 904, wherein the first fixed portion 902 is mounted on the first Y-axis moving portion 703, the first X-axis lead screw 904 is mounted on the first fixed portion 902, the first X-axis motor 901 is connected to one end of the first X-axis lead screw 904, and the first X-axis moving portion 903 is connected to the first X-axis lead screw 904 through a nut pair; here, the first X-axis lead screw 904 and the nut pair are connected to form a lead screw nut pair, and the lead screw nut pair is a well-known technology, so it is not described in detail;

[0037] The second X-axis displacement mechanism includes a second X-axis motor 1001, a second fixed part 1002, a second X-axis moving part 1003 and a second X-axis screw 1004. The second fixed part 1002 is installed on the second Y-axis moving part 803, and the second X-axis screw 1004 is installed on the second fixed part 1002. The second X-axis motor 1001 is connected to one end of the first X-axis screw 1004, and the second X-axis moving part 1003 is connected to the second X-axis screw 1004 through a nut pair.

[0038] The first Z-axis displacement mechanism comprises a first base 1101, a first Z-axis motor 1102, a first lead screw 1103, a first Z-axis guide rail 1104 and a first Z-axis moving part 1105, wherein the first base 1101 is fixedly mounted on the first X-axis moving part 903 of the first X-axis displacement mechanism, both ends of the first lead screw 1103 are vertically mounted on the first base 1101 through bearing seats, the first Z-axis motor 1102 is connected to the upper end of the first lead screw, the first lead screw 1103 is connected to the first Z-axis moving part 1105 through a nut pair, and the first Z-axis moving part 1105 is slidably connected to the first Z-axis guide rail 1104;

[0039] The tungsten carbide particle presetting device 5 includes a mixing bin 501, a feeder 502, a feeder motor 503 and a feeder pipe 504. The mixing bin 501 is mounted on the first Z-axis moving part 1105. The discharge port at the bottom of the mixing bin 501 is connected to the feeder 502. The bottom of the feeder 502 is connected to the feeder pipe 504. The feeder motor 503 drives the feeder 502 to operate. The feeder 502 here adopts the existing technology, so its structure is not described in detail.

[0040] The second Z-axis displacement mechanism includes a second base 1201, a second Z-axis motor 1202, a second lead screw 1203, a second Z-axis guide rail 1204 and a second Z-axis moving part 1205. The second base 1201 is fixedly mounted on the second X-axis moving part 1003 of the second X-axis displacement mechanism. Both ends of the second lead screw 1203 are vertically mounted on the second base 1201 through bearing seats. The second Z-axis motor 1202 is connected to the upper end of the second lead screw 1203. The second lead screw 1203 is connected to the second Z-axis moving part 1205 through a nut pair. The second Z-axis moving part 1205 is slidably connected to the second Z-axis guide rail 1204.

[0041] A powder feeder 14 is also provided on one side of the gantry truss 1 . The powder feeder 14 is connected to the plasma cladding torch device 4 through a pipeline to provide continuous and stable alloy powder to the plasma cladding torch device 4 .

[0042] The parts not described in detail in this utility model are prior art.

Claims

1. A composite cladding device for cladding tungsten carbide hard alloy particles on the surface of a steel plate, comprising a gantry truss (1), a walking track (2), a cooling vehicle (3), a tungsten carbide particle pre-setting device (5) and a plasma cladding torch device (4), wherein: The gantry truss (1) is provided with a Y-axis track (6) in the upper Y-axis direction, and the travel track (2) is laid inside and below the gantry truss (1), and the direction of the travel track (2) is parallel to the Y-axis of the gantry truss (1); the cooling vehicle (3) runs on the travel track, and the cooling vehicle (3) has a cooling device, and the cooling device includes a base platform and a circulating cooling mechanism installed at the bottom of the base platform, and the circulating cooling mechanism provides circulating cooling for the base platform; The Y-axis track (6) is provided with a first Y-axis displacement mechanism and a second Y-axis displacement mechanism; the first Y-axis displacement mechanism has a first Y-axis moving part (703), the first Y-axis moving part (703) is provided with a first X-axis displacement mechanism, the first X-axis displacement mechanism has a first X-axis moving part (903), the first X-axis moving part (903) is provided with a first Z-axis displacement mechanism, the first Z-axis displacement mechanism has a first Z-axis moving part (1105), and the tungsten carbide particle presetting device (5) is installed on the first Z-axis moving part (1105); The second Y-axis displacement mechanism comprises a second Y-axis moving part (803), the second Y-axis moving part (803) is provided with a second X-axis displacement mechanism, the second X-axis displacement mechanism comprises a second X-axis moving part (1003), the second X-axis moving part (1003) is provided with a second Z-axis displacement mechanism, the second Z-axis displacement mechanism comprises a second Z-axis moving part (1205), and the plasma cladding torch device (4) is mounted on the second Z-axis moving part (1205).

2. The composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate according to claim 1, characterized in that: The Y-axis track (6) comprises a Y-axis guide rail (601) and a Y-axis rack (602); the first Y-axis displacement mechanism comprises a first Y-axis motor (701), a first gear (702) and a first Y-axis moving part (703); the first Y-axis motor (701) is fixedly mounted on the first Y-axis moving part (703); the first gear (702) is mounted on the main shaft of the first Y-axis motor (701) and meshes with the Y-axis rack (602); and the first Y-axis moving part (703) is slidably connected to the Y-axis guide rail (601); The second Y-axis displacement mechanism comprises a second Y-axis motor (801), a second gear (802) and a second Y-axis moving part (803); the second Y-axis motor (801) is fixedly mounted on the second Y-axis moving part (803); the second gear (802) is mounted on the main shaft of the second Y-axis motor (801) and meshes with the Y-axis rack (602); and the second Y-axis moving part (803) is slidably connected to the Y-guide rail (601).

3. The composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate according to claim 1, characterized in that: The first X-axis displacement mechanism comprises a first X-axis motor (901), a first fixed part (902), a first X-axis moving part (903) and a first X-axis lead screw (904); the first fixed part (902) is mounted on the first Y-axis moving part (703); the first X-axis lead screw (904) is mounted on the first fixed part (902); the first X-axis motor (901) is connected to one end of the first X-axis lead screw (904); and the first X-axis moving part (903) is connected to the first X-axis lead screw (904) via a nut pair; The second X-axis displacement mechanism comprises a second X-axis motor (1001), a second fixed part (1002), a second X-axis moving part (1003) and a second X-axis lead screw (1004); the second fixed part (1002) is mounted on the second Y-axis moving part (803); the second X-axis lead screw (1004) is mounted on the second fixed part (1002); the second X-axis motor (1001) is connected to one end of the second X-axis lead screw (1004); and the second X-axis moving part (1003) is connected to the second X-axis lead screw (1004) via a nut pair.

4. The composite cladding equipment for cladding tungsten carbide cemented carbide particles on the surface of a steel plate according to claim 1, characterized in that: The first Z-axis displacement mechanism comprises a first base (1101), a first Z-axis motor (1102), a first lead screw (1103), a first Z-axis guide rail (1104) and a first Z-axis moving part (1105); the first base (1101) is fixedly mounted on the first X-axis moving part (903) of the first X-axis displacement mechanism; both ends of the first lead screw (1103) are vertically mounted on the first base (1101) via bearing seats; the first Z-axis motor (1102) is connected to the upper end of the first lead screw (1103); the first lead screw (1103) is connected to the first Z-axis moving part (1105) via a nut pair; and the first Z-axis moving part (1105) is slidably connected to the first Z-axis guide rail (1104); The tungsten carbide particle presetting device (5) comprises a mixing bin (501), a feeder (502), a feeder motor (503) and a feeder pipe (504); the mixing bin (501) is mounted on the first Z-axis moving part (1105); the discharge port at the bottom of the mixing bin (501) is connected to the feeder (502); the bottom of the feeder (502) is connected to the feeder pipe (504); and the feeder motor (503) drives the feeder (502) to operate.

5. The composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate according to claim 1, characterized in that: The second Z-axis displacement mechanism comprises a second base (1201), a second Z-axis motor (1202), a second lead screw (1203), a second Z-axis guide rail (1204) and a second Z-axis moving part (1205); the second base (1201) is fixedly mounted on the second X-axis moving part (1003) of the second X-axis displacement mechanism; both ends of the second lead screw (1203) are vertically mounted on the second base (1201) via bearing seats; the second Z-axis motor (1202) is connected to the upper end of the second lead screw (1203); the second lead screw (1203) is connected to the second Z-axis moving part (1205) via a nut pair; and the second Z-axis moving part (1205) is slidably connected to the second Z-axis guide rail (1204).

6. The composite cladding equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate according to claim 1, characterized in that: A powder feeder (14) is also provided on one side of the gantry truss (1); the powder feeder (14) is connected to the plasma cladding torch device (4) via a pipeline to provide continuous and stable alloy powder to the plasma cladding torch device (4).

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