A plasma powder cladding equipment for increasing cladding area

Abstract

This invention relates to the field of cladding equipment, and more specifically, to a plasma powder cladding equipment for increasing the cladding area, comprising a welding torch mechanism and a welding torch assembly frame. The welding torch assembly frame includes a central frame with a rotating rotating frame at each end. Welding torch mechanisms are mounted on both the central frame and the two rotating frames. A control mechanism is connected to the central frame, and this control mechanism is connected to the two rotating frames to control the nozzles of the welding torch mechanisms on the two rotating frames to move towards the nozzles of the welding torch mechanisms on the central frame, or to control the nozzles of the welding torch mechanisms on the two rotating frames to move away from the nozzles of the welding torch mechanisms on the central frame. This invention allows for adjustment of the cladding area according to actual needs, which is beneficial for rationally adjusting the cladding range based on the wear range of the bearing surface to be repaired, improving cladding repair efficiency, and enhancing the cladding effect.

Description

Technical Field

[0001] This invention relates to the field of cladding equipment, and more specifically, to a plasma powder cladding equipment for increasing the cladding area. Background Technology

[0002] Since the bearing surfaces of roller and rail parts are subject to friction for a long time, they are prone to wear. Therefore, their bearing surfaces are usually treated to improve hardness and wear resistance.

[0003] The most commonly used technology is to heat treat the surface of the parts. Although this method can improve the surface hardness and wear resistance, the heat treatment process has high requirements and is relatively complex, and it is not suitable for all factories.

[0004] Plasma powder cladding welding technology is widely used in parts repair and welding. It has advantages such as high cladding bonding strength, dense structure, beautiful shape, high efficiency and easy automation.

[0005] However, existing plasma powder cladding equipment suffers from a fixed and unadjustable cladding area. For example, a plasma powder cladding welding torch (patent number CN201910167332.1), belonging to the field of plasma powder welding production in the machinery manufacturing industry, includes a chuck sleeve, tungsten electrode, powder feeding pipe, pressure pad, chuck, powder feeding pipe insulating sleeve, water inlet sleeve insulating shell, water inlet sleeve, insulating spacer, tungsten electrode insulating sleeve, welding torch body, protective gas cover, central gas pipe, nozzle seat, nozzle, and cooling water tank. A chuck sleeve is fixedly installed at the top of the welding torch body, and a tungsten electrode is fixedly installed in the middle of the chuck sleeve. When using this welding equipment, the cladding area cannot be reasonably adjusted according to the wear range of the bearing surface to be repaired, thus failing to increase the cladding area, resulting in low working efficiency and affecting the cladding effect. Summary of the Invention

[0006] The purpose of this invention is to provide a plasma powder cladding equipment that increases the cladding area, effectively solving the problems in the prior art.

[0007] To achieve the above objectives, this application provides a plasma powder cladding welding device for increasing the cladding area, including a welding torch mechanism and a welding torch assembly frame; the welding torch assembly frame includes a central frame, with a flipping frame rotatably connected to each end of the central frame, and welding torch mechanisms are mounted on both the central frame and the two flipping frames; a control mechanism is connected to the central frame, and the control mechanism is connected to the two flipping frames to control the nozzles of the welding torch mechanisms on the two flipping frames to move towards the nozzles of the welding torch mechanisms on the central frame, or to control the nozzles of the welding torch mechanisms on the two flipping frames to move away from the nozzles of the welding torch mechanisms on the central frame.

[0008] Optionally, the tilting frame includes a tilting shaft, which is rotatably connected to the side end of the central frame. A side frame is fixed on the tilting shaft, and a welding gun mechanism is connected to the side frame. A limiting worm gear is fixed on the tilting shaft, and the limiting worm gear is connected to the control mechanism.

[0009] Optionally, the control mechanism includes a bidirectional worm gear rotatably connected to the central frame. The two ends of the bidirectional worm gear have opposite helical directions, and the two ends of the bidirectional worm gear mesh with the limiting worm wheels of two flipping frames to synchronously drive the two limiting worm wheels to rotate in different directions.

[0010] Optionally, the welding torch mechanism includes a central cylinder, a first inverted conical outlet without a cone tip at the lower end of the central cylinder, an upper end cover at the upper end of the central cylinder, a plasma gas inlet on the upper end cover, the plasma gas inlet communicating with the internal cavity of the central cylinder, an electrode post installed in the internal cavity of the central cylinder; the lower end of the central cylinder passes through the inner side of the outer cylinder, a powder inlet is provided on the outer cylinder, and a powder delivery cavity is formed between the outer cylinder and the central cylinder.

[0011] Optionally, the lower end of the outer cylinder is provided with a second inverted conical outlet without a cone tip. An inverted conical powder conveying channel is formed between the second inverted conical outlet and the first inverted conical outlet, so as to guide the powder in the powder conveying cavity towards the axial direction of the central cylinder through the inverted conical powder conveying channel.

[0012] Optionally, the electrode post includes a column body, with the upper part of the column body fixed to an upper centering ring. The upper centering ring is fixed above the central cylinder chamber by multiple horizontal supports. The middle part of the column body is slidably fitted onto a lower centering ring. One end of multiple inclined connecting rods is rotatably connected to the outer ring surface of the lower centering ring, and the other end of multiple inclined connecting rods is rotatably connected to the lower end of multiple vertical slides. The multiple vertical slides are slidably fitted with the cross-shaped slides of the multiple horizontal supports. A reset spring is fixed between each vertical slide and the inner side of the cross-shaped slide. The upper end of the multiple vertical slides is connected to a sliding adjustment control.

[0013] Optionally, the sliding adjustment control includes an adjustment worm gear, which is fixed in the middle of a rotating horizontal shaft. Both ends of the rotating horizontal shaft are rotatably connected to the central cylinder. The adjustment worm gear meshes with an adjustment worm wheel, which is rotatably connected to a column. Multiple eccentric shafts are fixed on the adjustment worm wheel, and the multiple eccentric shafts are rotatably connected to multiple eccentric rods. The other ends of the multiple eccentric rods are rotatably connected to multiple vertical carriages.

[0014] Optionally, a sealing control head is fixed on the lower centering ring. The upper end of the sealing control head is a positive conical surface structure without a cone tip, and the lower end of the sealing control head is an inverted conical surface structure without a cone tip. The conical surface of the inverted conical surface structure can be attached to the inner surface of the first inverted conical outlet.

[0015] Optionally, multiple baffle grooves are evenly arranged around the central cylinder, and a sliding baffle is slidably fitted in each baffle groove. The inner arc surfaces of the inner ends of the multiple sliding baffles are attached to the inverted conical surface structure, and the outer ends of the multiple sliding baffles are inserted into the inverted conical powder conveying channel. When the inverted conical surface structure moves toward the first inverted conical outlet, it can push the multiple sliding baffles to move into the inverted conical powder conveying channel. A stop block is fixed at the inner end of each sliding baffle, and a compression spring is fixed between the stop block and the inner side of the central cylinder.

[0016] Optionally, the outer cylinder includes a fixed cylinder fixed to the central cylinder, the lower end of the fixed cylinder being rotatably connected to the rotating cylinder, and a second inverted conical outlet being located at the lower end of the rotating cylinder; a drive motor is mounted on the fixed cylinder, and a gear on the output shaft of the drive motor meshes with an external gear ring fixed on the rotating cylinder; multiple lateral slides are evenly arranged around the rotating cylinder, and a partition slide is sealed and slidable in each lateral slide; an arc-shaped scraper at the inner end of the partition slide can slide on the outer cylinder surface of the central cylinder; the outer end of the partition slide is rotatably connected to the outer end of an adjusting screw, and the middle part of the adjusting screw is threadedly connected to an internal threaded hole on the rotating cylinder.

[0017] The beneficial effects of this invention are as follows: This invention provides a plasma powder cladding welding device that increases the cladding area. It has three welding gun mechanisms inside. During use, the nozzles of the welding gun mechanisms on the two flipping frames can be controlled by the adjustment mechanism to move towards the nozzle of the welding gun mechanism on the central frame. This causes the molten pools of the three welding gun mechanisms to converge, thereby forming a larger cladding area. Furthermore, the size of the cladding area can be adjusted according to actual needs. This is beneficial for reasonably adjusting the cladding range according to the wear range of the bearing surface to be repaired, improving the cladding repair efficiency, and enhancing the cladding effect.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the welding torch assembly frame provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the welding torch mechanism provided in an embodiment of the present invention. Figure 1 ;

[0023] Figure 4 A schematic diagram of the welding torch mechanism provided in an embodiment of the present invention. Figure 2 ;

[0024] Figure 5 A cross-sectional view of the welding torch mechanism provided in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the flipping frame provided in an embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional view of the central cylinder provided in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the electrode post provided in an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the outer cylinder provided in an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the sliding adjustment control provided in an embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the sealing and control head provided in an embodiment of the present invention.

[0031] Icons: Welding torch mechanism 1; Welding torch assembly frame 2; Central frame 3; Tilting frame 4; Tilting shaft 401; Side frame 402; Limiting worm gear 403; Control mechanism 5; Central cylinder 6; Sliding baffle 601; Compression spring 602; Electrode column 7; Column 701; Upper centering ring 702; Horizontal support 703; Lower centering ring 704; Inclined connecting rod 705; Vertical slide 706; Reset spring 707; Sealing control head 708; Outer cylinder 8; Fixed cylinder 801; Rotating cylinder 802; Drive motor 803; Separating slide plate 804; Adjusting screw 805; Sliding control 9; Controlling worm gear 901; Rotating horizontal shaft 902; Controlling worm gear 903; Eccentric shaft 904; Eccentric rod 905. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0036] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of this application, should still fall within the scope of the technical content disclosed in this application. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application.

[0037] The following is in conjunction with the appendix Figure 1-11 The present invention will be described in further detail below.

[0038] like Figure 1-11As shown, a plasma powder cladding welding device for increasing the cladding area includes a welding torch mechanism 1 and a welding torch assembly frame 2. The welding torch assembly frame 2 includes a central frame 3, with a flipping frame 4 rotatably connected to each end of the central frame 3. The central frame 3 and the two flipping frames 4 are each equipped with a welding torch mechanism 1. The central frame 3 is connected to a control mechanism 5, which is connected to the two flipping frames 4 to control the nozzles of the welding torch mechanism 1 on the two flipping frames 4 to move towards the nozzles of the welding torch mechanism 1 on the central frame 3, or to control the nozzles of the welding torch mechanism 1 on the two flipping frames 4 to move away from the nozzles of the welding torch mechanism 1 on the central frame 3.

[0039] In a plasma powder cladding welding device for increasing the cladding area according to the present invention, a welding torch mechanism 1 is installed on the central frame 3, and welding torch mechanisms 1 are also installed on two flipping frames 4. In use, the two flipping frames 4 can be controlled by the control mechanism 5 to rotate synchronously in different clockwise directions. This causes the nozzles of the welding torch mechanisms 1 on both sides to move closer to the nozzles of the welding torch mechanism 1 on the central frame 3, or to move further away from the nozzles of the welding torch mechanism 1 on both sides. When the nozzles of the welding torch mechanisms 1 on both sides move closer to the nozzles of the welding torch mechanism 1 on the central frame 3, the molten pools of the three welding torch mechanisms 1 converge, thereby forming a larger cladding area. The convergence range can be adjusted according to actual needs, thereby changing the size of the cladding area. This allows for reasonable adjustment of the cladding range based on the wear range of the bearing surface to be repaired, improving the cladding repair efficiency and the cladding effect.

[0040] The flipping frame 4 includes a flipping shaft 401, which is rotatably connected to the side end of the central frame 3. A side frame 402 is fixed on the flipping shaft 401, and a welding gun mechanism 1 is connected to the side frame 402. A limiting worm gear 403 is fixed on the flipping shaft 401, and the limiting worm gear 403 is connected to the control mechanism 5.

[0041] The control mechanism 5 includes a bidirectional worm gear, which is rotatably connected to the central frame 3. The two ends of the bidirectional worm gear have opposite helical directions, and the two ends of the bidirectional worm gear mesh with the limiting worm wheels 403 of the two flipping frames 4 to synchronously drive the two limiting worm wheels 403 to rotate in different directions.

[0042] The flipping frame 4 and the control mechanism 5 work together to control the convergence or separation of the molten pools of the three welding torch mechanisms 1. The bidirectional worm gear is controlled to rotate, and the two ends of the bidirectional worm gear mesh with the limiting worm wheels 403 of the two flipping frames 4. Rotating the bidirectional worm gear can drive the two limiting worm wheels 403 to rotate in different clockwise directions, thereby controlling the two flipping shafts 401 to rotate in different clockwise directions. The two flipping shafts 401 drive the two side frames 402 to rotate in different directions. Finally, the two side frames 402 control the nozzles of the welding torch mechanisms 1 on both sides to move closer to or further away from the nozzles of the welding torch mechanism 1 on the central frame 3. The operation is very convenient, and after adjustment, due to the structural nature of the worm wheel and worm gear, they can be relatively locked without the need for other locking mechanisms.

[0043] The welding torch mechanism 1 includes a central cylinder 6, with a first inverted conical outlet without a cone tip at the lower end of the central cylinder 6, an upper end cover at the upper end of the central cylinder 6, and a plasma gas inlet on the upper end cover. The plasma gas inlet communicates with the internal cavity of the central cylinder 6, and an electrode post 7 is installed in the internal cavity of the central cylinder 6. The lower end of the central cylinder 6 passes through the inner side of the outer cylinder 8, and a powder inlet is provided on the outer cylinder 8. A powder delivery cavity is formed between the outer cylinder 8 and the central cylinder 6.

[0044] The lower end of the outer cylinder 8 is provided with a second inverted cone-shaped outlet without a cone tip. An inverted cone-shaped powder conveying channel is formed between the second inverted cone-shaped outlet and the first inverted cone-shaped outlet, so as to guide the powder in the powder conveying cavity to the axial direction of the central cylinder 6 through the inverted cone-shaped powder conveying channel.

[0045] When in use, the welding torch mechanism 1 connects the plasma gas inlet on the upper end cover to the plasma gas storage tank to inject plasma gas into the central cylinder 6. The electrode post 7 is electrically connected to the controller and power supply to generate current, which, in conjunction with the plasma gas in the central cylinder 6, generates a plasma arc. The plasma arc is discharged through the first inverted conical outlet at the lower end of the central cylinder 6. The lower end of the central cylinder 6 passes through the inner side of the outer cylinder 8, forming a powder conveying cavity between the central cylinder 6 and the outer cylinder 8. The powder inlet on the outer cylinder 8 is connected to the powder storage tank. The powder is fed into the powder conveying cavity by the conveying airflow and output through the second inverted conical outlet at the lower end of the outer cylinder 8. The second inverted conical outlet and the first inverted conical outlet form an inverted conical powder conveying channel, so that the powder in the powder conveying cavity is guided towards the axial direction of the central cylinder 6, thereby mixing with the plasma arc discharged from the first inverted conical outlet. The powder is metal powder, which is melted and coated onto the bearing surface to be repaired under the action of the plasma arc.

[0046] The electrode post 7 includes a column 701, with the upper part of the column 701 fixed to an upper centering ring 702. The upper centering ring 702 is fixed above the central cylinder 6 chamber by multiple horizontal supports 703. The middle part of the column 701 is slidably fitted onto a lower centering ring 704. One end of multiple inclined connecting rods 705 is rotatably connected to the outer ring surface of the lower centering ring 704, and the other end of multiple inclined connecting rods 705 is rotatably connected to the lower end of multiple vertical slides 706. The multiple vertical slides 706 are slidably fitted with the cross-shaped slides of the multiple horizontal supports 703. A reset spring 707 is fixed between each vertical slide 706 and the inner side of the cross-shaped slide. The upper end of the multiple vertical slides 706 is connected to a sliding adjustment control 9.

[0047] The column 701 inside the electrode post 7 is a tungsten electrode, electrically connected to the controller and power supply for discharge. The upper part of the column 701 is fixed on the upper centering ring 702 for stability. The middle part of the column 701 slides on the lower centering ring 704. The relative position of the lower centering ring 704 and the column 701 can be adjusted by the sliding adjustment control 9. The sliding adjustment control 9 can control the movement of multiple vertical slides 706 inward within the cross-shaped slides of multiple horizontal supports 703, and compress multiple return springs 707, thereby driving one end of multiple tilting connecting rods 705 to move inward. The other end of the multiple inclined connecting rods 705 drives the lower centering ring 704 to slide downward on the column 701. The sliding of the lower centering ring 704 can clean the dust on the surface of the column 701 and prevent the column 701 from rusting, effectively ensuring the discharge effect of the column 701 and ensuring the use effect of the invention. In addition, the sliding of the lower centering ring 704 on the column 701 can also detect the straightness of the column 701, effectively detecting whether the column 701 has been deformed or displaced, preventing the column 701 from being displaced or deformed and affecting the use effect of the invention, facilitating timely replacement of the column 701, and ensuring the use effect.

[0048] The sliding adjustment control 9 includes an adjustment worm gear 901, which is fixed in the middle of a rotating horizontal shaft 902. Both ends of the rotating horizontal shaft 902 are rotatably connected to the central cylinder 6. The adjustment worm gear 901 meshes with an adjustment worm wheel 903, which is rotatably connected to a column 701. Multiple eccentric shafts 904 are fixed on the adjustment worm wheel 903. The multiple eccentric shafts 904 are rotatably connected to multiple eccentric rods 905, and the other ends of the multiple eccentric rods 905 are rotatably connected to multiple vertical slides 706.

[0049] The sliding adjustment control 9 is used to control the relative position of the lower centering ring 704 and the column 701. During adjustment, rotating the horizontal axis 902 drives the adjusting worm gear 901 to rotate, which in turn drives the adjusting worm wheel 903 to rotate. When the adjusting worm wheel 903 rotates, it drives multiple eccentric shafts 904 to rotate. The multiple eccentric shafts 904 drive one end of multiple eccentric rods 905 to rotate. The other end of the multiple eccentric rods 905 drives multiple vertical slides 706 to slide in the cross-shaped slides of multiple horizontal supports 703, thus achieving the adjustment of the position of the lower centering ring 704. The operation is very convenient and highly practical.

[0050] A blocking control head 708 is fixed on the lower centering ring 704. The upper end of the blocking control head 708 is a positive conical surface structure without a cone tip, and the lower end of the blocking control head 708 is an inverted conical surface structure without a cone tip. The conical surface of the inverted conical surface structure can fit against the inner surface of the first inverted conical outlet.

[0051] A blocking control head 708 is fixed on the lower centering ring 704. The position of the blocking control head 708 can be adjusted by adjusting the position of the lower centering ring 704, thereby adjusting the distance between the blocking control head 708 and the inner side of the first inverted conical outlet, thus realizing the adjustment of the output plasma gas and plasma arc to meet the usage requirements under different conditions. The conical surface of the inverted conical structure can be attached to the inner side of the first inverted conical outlet. At this time, the output of plasma gas stops, that is, the output of plasma arc stops.

[0052] Multiple baffle grooves are evenly arranged around the central cylinder 6. A sliding baffle 601 is slidably fitted in each baffle groove. The inner arc surface of the inner end of the multiple sliding baffles 601 is attached to the inverted conical surface structure. The outer ends of the multiple sliding baffles 601 are inserted into the inverted conical powder conveying channel. When the inverted conical surface structure moves towards the first inverted conical outlet, it can push the multiple sliding baffles 601 to move into the inverted conical powder conveying channel. A stop block is fixed at the inner end of each sliding baffle 601. A compression spring 602 is fixed between the stop block and the inner side of the central cylinder 6.

[0053] When the distance between the adjusting and sealing head 708 and the inner side of the first inverted cone outlet decreases, the inverted cone surface structure moves towards the first inverted cone outlet, which can press multiple sliding baffles 601 into the inverted cone powder conveying channel. This increases the blocking range of the multiple sliding baffles 601 in the inverted cone powder conveying channel, thereby reducing the amount of powder conveyed in the inverted cone powder conveying channel. This is suitable for use when reducing or decreasing plasma gas and plasma arc, preventing poor powder melting effect caused by excessive powder when the plasma arc is small, and helping to ensure the cladding effect.

[0054] The outer cylinder 8 includes a fixed cylinder 801 fixed on the central cylinder 6, with the lower end of the fixed cylinder 801 rotatably connected to a rotating cylinder 802, and a second inverted conical outlet located at the lower end of the rotating cylinder 802; a drive motor 803 is mounted on the fixed cylinder 801, and a gear on the output shaft of the drive motor 803 meshes with an external gear ring fixed on the rotating cylinder 802; multiple lateral slides are evenly arranged around the rotating cylinder 802, and a separating slide plate 804 is sealed and slidable in each lateral slide; the arc-shaped scraper at the inner end of the separating slide plate 804 can slide on the outer cylinder surface of the central cylinder 6; the outer end of the separating slide plate 804 is rotatably connected to the outer end of an adjusting screw 805, and the middle part of the adjusting screw 805 is threadedly connected to an internal threaded hole on the rotating cylinder 802.

[0055] The lower end of the fixed cylinder 801 is rotatably connected to the rotating cylinder 802. After the drive motor 803 starts, it can drive the gear on its output shaft to mesh with the external gear ring to rotate, thereby driving the rotating cylinder 802 to rotate. This causes the rotating cylinder 802 to drive the inner separating slide plate 804 to perform a certain degree of mixing treatment on the powder, improving the powder dispersion effect. Furthermore, the powder separated by the separating slide plate 804 can be transported in a rotating, circling motion to the area below the first inverted conical outlet, improving the contact and mixing effect between the plasma arc output from the first inverted conical outlet and the powder, further enhancing the cladding effect. When the adjusting screw 805 is rotated, the adjustment screw 80... 5. The contact position with the internal threaded hole on the rotating cylinder 802 drives the separating slide plate 804 to slide in the lateral slide, so that multiple separating slide plates 804 can divide the rotating cylinder 802 and the central cylinder 6 into multiple powder conveying channels, so that the powder is evenly output through multiple powder conveying channels, improving the powder output effect. Furthermore, when the arc-shaped scraper at the inner end of the separating slide plate 804 slides on the outer cylinder surface of the central cylinder 6, the rotating cylinder 802 rotates, which can drive the arc-shaped scraper at the inner end of the separating slide plate 804 to clean the outer cylinder surface of the central cylinder 6, scraping off the powder attached to the outer cylinder surface of the central cylinder 6. It has rich functions and strong practicality.

[0056] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A plasma powder cladding welding device for increasing the cladding area, characterized in that, It includes a welding torch mechanism (1) and a welding torch assembly frame (2); the welding torch assembly frame (2) includes a central frame (3), and a flipping frame (4) is rotatably connected to each end of the central frame (3). The welding torch mechanism (1) is installed on both the central frame (3) and the two flipping frames (4); the central frame (3) is connected to a control mechanism (5), and the control mechanism (5) is connected to the two flipping frames (4) to control the nozzles of the welding torch mechanism (1) on the two flipping frames (4) to move towards the nozzles of the welding torch mechanism (1) on the central frame (3), or to control the nozzles of the welding torch mechanism (1) on the two flipping frames (4) to move away from the nozzles of the welding torch mechanism (1) on the central frame (3); The welding torch mechanism (1) includes a central cylinder (6), the lower end of which is provided with a first inverted cone-shaped outlet without a cone tip, the upper end of which is provided with an upper cover, and the upper cover is provided with a plasma gas inlet, which is connected to the internal cavity of the central cylinder (6), and an electrode column (7) is installed in the internal cavity of the central cylinder (6); the lower end of the central cylinder (6) passes through the inner side of the outer cylinder (8), and the outer cylinder (8) is provided with a powder inlet, forming a powder delivery cavity between the outer cylinder (8) and the central cylinder (6); The electrode post (7) includes a column (701), which is fixed on the upper centering ring (702). The upper centering ring (702) is fixed above the central cylinder (6) chamber by multiple horizontal supports (703). The middle part of the column (701) is slidably fitted on the lower centering ring (704). One end of multiple inclined connecting rods (705) is rotatably connected to the outer ring surface of the lower centering ring (704), and the other end of multiple inclined connecting rods (705) is rotatably connected to the lower end of multiple vertical slides (706). The multiple vertical slides (706) are slidably fitted with the cross-shaped slides of multiple horizontal supports (703). A reset spring (707) is fixed between each vertical slide (706) and the inner side of the cross-shaped slide. The upper end of the multiple vertical slides (706) is connected to the sliding adjustment control (9).

2. The plasma powder cladding equipment for increasing the cladding area according to claim 1, characterized in that, The flipping frame (4) includes a flipping shaft (401), which is rotatably connected to the side end of the central frame (3). A side frame (402) is fixed on the flipping shaft (401), and a welding gun mechanism (1) is connected to the side frame (402). A limiting worm gear (403) is fixed on the flipping shaft (401), and the limiting worm gear (403) is connected to the control mechanism (5).

3. The plasma powder cladding equipment for increasing the cladding area according to claim 2, characterized in that, The control mechanism (5) includes a bidirectional worm gear, which is rotatably connected to the central frame (3). The two ends of the bidirectional worm gear have opposite helical directions. The two ends of the bidirectional worm gear mesh with the limiting worm wheels (403) of the two flipping frames (4) to synchronously drive the two limiting worm wheels (403) to rotate in different directions.

4. The plasma powder cladding equipment for increasing the cladding area according to claim 1, characterized in that, The lower end of the outer cylinder (8) is provided with a second inverted cone-shaped outlet without a cone tip. An inverted cone-shaped powder conveying channel is formed between the second inverted cone-shaped outlet and the first inverted cone-shaped outlet, so as to guide the powder in the powder conveying cavity to the axial direction of the central cylinder (6) through the inverted cone-shaped powder conveying channel.

5. The plasma powder cladding equipment for increasing the cladding area according to claim 1, characterized in that, The sliding adjustment control (9) includes an adjustment worm gear (901), which is fixed in the middle of a rotating horizontal shaft (902). Both ends of the rotating horizontal shaft (902) are sealed and rotatably connected to the central cylinder (6). The adjustment worm gear (901) meshes with an adjustment worm wheel (903), which is rotatably connected to a column (701). Multiple eccentric shafts (904) are fixed on the adjustment worm wheel (903). The multiple eccentric shafts (904) are rotatably connected to multiple eccentric rods (905), and the other end of the multiple eccentric rods (905) is rotatably connected to multiple vertical slides (706).

6. The plasma powder cladding equipment for increasing the cladding area according to claim 4, characterized in that, The lower centering ring (704) is fixed with a blocking control head (708). The upper end of the blocking control head (708) is a positive conical surface structure without a cone tip, and the lower end of the blocking control head (708) is an inverted conical surface structure without a cone tip. The conical surface of the inverted conical surface structure can be attached to the inner surface of the first inverted conical outlet.

7. The plasma powder cladding equipment for increasing the cladding area according to claim 6, characterized in that, Multiple baffle grooves are evenly arranged around the central cylinder (6). A sliding baffle (601) is slidably fitted in each baffle groove. The inner arc surface of the inner end of the multiple sliding baffles (601) is attached to the inverted conical surface structure. The outer end of the multiple sliding baffles (601) is inserted into the inverted conical powder conveying channel. When the inverted conical surface structure moves towards the first inverted conical outlet, it can push the multiple sliding baffles (601) to move into the inverted conical powder conveying channel. A stop block is fixed at the inner end of each sliding baffle (601). A compression spring (602) is fixed between the stop block and the inner side of the central cylinder (6).

8. The plasma powder cladding equipment for increasing the cladding area according to claim 7, characterized in that, The outer cylinder (8) includes a fixed cylinder (801) fixed on the central cylinder (6), the lower end of the fixed cylinder (801) is rotatably connected to the rotating cylinder (802), and the second inverted conical outlet is located at the lower end of the rotating cylinder (802); a drive motor (803) is installed on the fixed cylinder (801), and the gear on the output shaft of the drive motor (803) meshes with the external gear ring fixed on the rotating cylinder (802); multiple lateral slides are evenly arranged around the rotating cylinder (802), and a partition slide plate (804) is sealed and slid in each lateral slide plate. The arc-shaped scraper at the inner end of the partition slide plate (804) can slide on the outer cylinder surface of the central cylinder (6), and the outer end of the partition slide plate (804) is rotatably connected to the outer end of the adjusting screw (805). The middle part of the adjusting screw (805) is threadedly connected to the internal thread hole on the rotating cylinder (802).

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