Spraying device for thermal spraying

Abstract

The utility model relates to the technical field of thermal spraying, in particular to a spraying device for thermal spraying, which comprises a spraying base, vertical rods are fixedly connected to the left side and the right side of the spraying base, and a cross rod is fixedly connected between the two vertical rods; the spraying unit comprises a driving part and a spraying part; the two rotating clamping units are arranged on the two sides of the base correspondingly and comprise rotating parts and clamping parts, each rotating part comprises a driving device and a rotating device, a driving groove is formed in the surface of each rotating device, each driving device comprises an inner driving mechanism and an outer driving mechanism, each inner driving mechanism is arranged on the axis of the inner side of the corresponding rotating device, and each outer driving mechanism is arranged on the axis of the outer side of the corresponding rotating device; the outer driving mechanisms are arranged on the two sides of the driving groove, the clamping part comprises a fastening device and a clamping device, the fastening device is connected with the rotating device, the rotating smoothness is improved through multi-point driving of the inner driving mechanisms and the outer driving mechanisms, meanwhile, the clamping part can adapt to metal rods with different diameters, and the applicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermal spraying technical field, specifically, relate to a kind of spraying device for thermal spraying. BACKGROUND

[0002] Thermal spraying is a kind of surface strengthening technology, and is an important component of surface engineering technology, which is a kind of technology that powder or filamentous metal or non-metal material is heated to molten or semi-molten state, and then is sprayed to the surface of pretreated substrate at a certain speed to form a surface coating with various functions, such as the existing application number 201921657531.2, a kind of material rotating clamping mechanism for thermal spraying based on thermal spraying technology is disclosed, which comprises a base plate and the material rotating clamping mechanism for thermal spraying based on thermal spraying technology, by rotating the threaded control rod left, the clamping plate moves left, the fixed plate and the clamping plate clamping the thermal spraying nozzle, the clamping push rod is opened, the metal rod to be processed is clamped by the fitting plate, the driving motor is opened, the metal rod to be processed starts to rotate, the thermal spraying nozzle is opened, the metal rod rotates one round, and the driving push rod pushes the installation cylinder to move right to continue spraying. The above-mentioned patent does not need the operator to hold the thermal spraying nozzle, solves the problem that the operator is very tired in the traditional processing mode, and it is difficult to control the distance from the nozzle to the metal rod when holding the thermal spraying nozzle, and the defective product is prone to be produced. However, the rotating clamping mechanism of the above-mentioned patent only clamps the metal rod by the fitting plate, and the rotating clamping mechanism can only adapt to the metal rod diameter in a specific range. If the metal rod is too large or too small, the fitting plate cannot effectively clamp, which leads to insufficient clamping force, and even the metal rod may slide during spraying. If the shape of the metal rod is irregular or the surface has protrusions. This uneven clamping force will affect the stability and precision of rotation, and further affect the spraying quality.

[0003] Therefore, a spraying device for thermal spraying is urgently needed to solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a kind of spraying device for thermal spraying, to solve the problem of poor clamping effect of existing spraying device.

[0005] The utility model provides a kind of spraying device for thermal spraying, it includes:

[0006] Spraying base, the left and right sides of the spraying base are all fixedly connected with vertical rod, and the middle of two vertical rods is fixedly connected with cross bar;

[0007] Spraying unit, including driving part and spraying part, the driving part is arranged at the top of the cross bar, the spraying part is arranged at one side of the driving part, and the driving part is connected with the spraying part;

[0008] The rotating clamping unit is provided with two, respectively arranged on both sides of the base, including a rotating part and a clamping part, the rotating part includes a driving device and a rotating device, the rotating device is provided with a driving groove on the surface, the driving device includes an inner driving mechanism and an outer driving mechanism, the inner driving mechanism is arranged on the inner side shaft of the rotating device, the inner driving mechanism is provided with a first sliding groove on the surface, the outer driving mechanism is arranged on both sides of the driving groove, the clamping part includes a fastening device and a clamping device, the fastening device is connected with the rotating device.

[0009] Further, the rotating device includes a rotating ring and a connecting block, the rotating ring is sleeved on the inner driving mechanism, a plurality of connecting blocks are uniformly arranged between the rotating ring and the inner driving mechanism, and the plurality of connecting blocks are fixedly connected with the inner driving mechanism, a second sliding groove is formed in the plurality of connecting blocks, and the first sliding groove corresponds to the second sliding groove.

[0010] Further, the fastening device includes a fastening ring and a fastening driving piece, a sliding block is formed in the inner side of the fastening ring, the sliding block is slidably connected with the first sliding groove and the second sliding groove, one end of the fastening driving piece is fixedly arranged with the connecting block, and the other end of the fastening driving piece abuts against the fastening ring.

[0011] Further, the clamping device includes a clamping ring, a clamping block, a clamping rod, a clamping piece and a torsional spring, the outer surface of the fastening ring is coaxially provided with a clamping ring, the clamping ring is uniformly provided with a rectangular groove, the clamping rod is arranged in the rectangular groove, the torsional spring is sleeved on the clamping rod, the two ends of the clamping rod are respectively connected with the clamping block and the clamping piece, and the clamping block is located between the clamping ring and the fastening ring.

[0012] Further, the outer driving mechanism includes an outer driving motor and an outer driving roller, the output shaft of the outer driving motor is rotatably connected with the outer driving roller, and the outer driving roller is clamped into the driving groove and in contact with the inner bottom wall of the driving groove.

[0013] Further, the outer driving mechanism further includes a rotating shaft and an outer driving base, the outer driving base is fixedly connected with the base, the rotating shaft is coaxially arranged on the outer driving roller, and the two ends of the rotating shaft are rotatably connected with the outer driving base.

[0014] Further, the upper end surface of the outer driving base is provided with a supporting wheel for auxiliary rotation which is symmetrically arranged on the front and back of the outer driving roller.

[0015] Further, the spraying part includes a spraying barrel and a spraying gun, one side of the spraying barrel is connected with the driving part, and the lower end of the spraying barrel is connected with the spraying gun.

[0016] Further, the spraying part further comprises a blowing device for blowing air to the spraying gun.

[0017] Further, the rotating clamping unit is coated with a high-temperature-resistant anticorrosion coating.

[0018] Compared with the prior art, the utility model has the advantages that: the utility model discloses a driving part drives a spraying part, which can displace the spraying part along the X-axis direction, facilitating the spraying part to spray the surface of the metal piece, and improving the coverage range and flexibility of spraying. The spraying part can accurately move according to the specific position and length of the metal rod, ensuring that the spraying material uniformly covers the entire surface of the metal rod, reducing the dead angle of spraying, improving the spraying efficiency and quality, reducing the generation of bubbles, cracks and other coating defects, ensuring the thickness and adhesion of the coating, improving the performance and reliability of the final product, and further rotating the rotating part of the rotating clamping unit by the inner driving mechanism and the outer driving mechanism to rotate the rotating part, making the rotation more stable and uniform. Through multi-point driving, the vibration and imbalance phenomenon caused by single-point driving are reduced, the stability and consistency of the metal rod during rotation are ensured, the clamping part is displaced through the fastening unit, and the displacement of the clamping device is controlled, which can adapt to metal rods of different diameters, the clamping function expands the application range of the equipment, and the clamping device does not need to be frequently replaced, improving the continuity and efficiency of production. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model provides a whole structure schematic diagram of spraying device for thermal spraying;

[0020] Figure 2 The utility model provides a rotating clamping unit structure schematic diagram in spraying device for thermal spraying;

[0021] Figure 3 The utility model provides a clamping device structure schematic diagram in spraying device for thermal spraying.

[0022] Wherein: 1, spraying base; 110, vertical rod; 120, horizontal rod; 2, spraying unit; 210, driving part; 220, spraying barrel; 230, spraying gun; 240, blowing device; 3, rotary clamping unit; 310, rotating part; 311, rotating ring; 312, driving groove; 313, connecting block; 314, second sliding groove; 320, clamping part; 321, fastening ring; 322, fastening driving piece; 331, clamping ring; 332, clamping block; 333, clamping rod; 334, clamping piece; 335, torsion spring; 340, inner driving mechanism; 350, outer driving mechanism; 351, outer driving motor; 352, outer driving roller; 353, outer driving base; 354, supporting wheel; 360, rectangular groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] The terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] ReferenceFigures 1-2 The embodiment shown provides a spraying device for thermal spraying, which comprises a spraying base 1, vertical rods 110 fixedly connected to the left and right sides of the spraying base 1, and a horizontal rod 120 fixedly connected between the two vertical rods 110.

[0028] A spraying unit 2, which comprises a driving part 210 and a spraying part, is arranged at the top of the horizontal rod 120, and the spraying part is arranged at one side of the driving part 210, and the driving part 210 is connected to the spraying part.

[0029] Two rotating clamping units 3 are arranged at the two sides of the base and comprise rotating parts 310 and clamping parts 320. The rotating part 310 comprises a driving device and a rotating device, the surface of the rotating device is provided with a driving groove 312, the driving device comprises an inner driving mechanism 340 and an outer driving mechanism 350, the inner driving mechanism 340 is arranged at the inner shaft of the rotating device, the surface of the inner driving mechanism 340 is provided with a first sliding groove, and the outer driving mechanism 350 is arranged at the two sides of the driving groove 312. The clamping part 320 comprises a fastening device and a clamping device, and the fastening device is connected to the rotating device.

[0030] Specifically, the two sides of the spraying base 1 are provided with vertical rods 110, the horizontal rod 120 is arranged between the two vertical rods 110, the driving part 210 of the spraying unit 2 is arranged above the horizontal rod 120, the spraying part can be displaced along the X-axis direction by controlling the driving part 210, so that the material sprayed by the spraying part can be more evenly covered on the metal surface, the rotating clamping unit 3 is provided with two, when the metal rod needs to be sprayed, the rotating clamping units 3 on the left and right sides clamp the two ends of the metal rod, so that the rotation is more stable, and each rotating clamping unit 3 is driven by two driving mechanisms. First, the inner driving mechanism 340 is arranged at the shaft center of the rotating clamping unit 3, the inner driving mechanism 340 is driven to rotate by a motor, and then the rotating clamping unit 3 is driven to rotate, and the outer driving mechanism 350 is arranged at the driving groove 312 side of the rotating part 310, which is attached to the inner walls of the driving groove 312 on both sides, the outer driving mechanism 350 and the inner driving mechanism 340 cooperate to make the rotating force more uniform and stable, the clamping part 320 clamps the hollow inner wall of the metal rod, the clamping part 320 comprises a fastening device and a clamping device, the clamping device is attached to the inner wall surface of the metal rod, and is displaced by the fastening device, so as to drive the clamping device to displace to adapt to metal rods of different diameters, and ensure that the clamping device always maintains uniform clamping force attached to the inner wall surface of the metal rod.

[0031] It can be understood that the combination of the spraying base 1, the vertical rod 110 and the horizontal rod 120 ensures stability and rigidity, providing a good foundation for spraying and rotary clamping. The spraying base 1 is fixedly connected with the vertical rod 110 on both sides, and the horizontal rod 120 is fixedly connected between the two vertical rods 110, which not only disperses the weight, but also enhances the rigidity and anti-vibration ability of the structure, so that the whole can maintain high stability during high-speed rotation and spraying, reducing vibration and displacement caused by structural defects, thereby improving the precision of spraying and the quality of the coating. The driving part 210 of the spraying unit 2 is arranged at the top of the horizontal rod 120, the spraying part is arranged on one side of the driving part 210, and the driving part 210 is connected with the spraying part, so that the spraying part can be accurately displaced along the X-axis direction, thereby covering the entire surface of the metal rod. By controlling the driving part 210, the precise movement of the spraying part can be realized, ensuring that the spraying material is evenly covered on the metal surface, avoiding the problems of dead angle and uneven coating, and improving the spraying efficiency and quality. Especially for long metal rods, this X-axis displacement function can realize continuous spraying, reducing the time of frequent shutdown and adjustment, and improving the production continuity.

[0032] The rotary clamping unit 3 is provided with two, which are respectively located on both sides of the base. When the metal rod needs to be sprayed, the rotary clamping units 3 on both sides can clamp the two ends of the metal rod, so that the rotation is more stable. Double-end clamping can balance the rotary force, reducing the distortion and imbalance phenomenon caused by single-end clamping, and ensuring the stability of the metal rod during rotation. The rotating part 310 of the rotary clamping unit 3 includes a driving device and a rotating device, and the rotating device is provided with a driving groove 312 on the surface. The driving device includes an inner driving mechanism 340 and an outer driving mechanism 350. The inner driving mechanism 340 is arranged on the inner shaft of the rotating device, and the inner driving mechanism 340 is driven to rotate by the motor, thereby driving the rotary clamping unit 3 to rotate. The inner driving can provide more uniform and stable rotary force, reducing the vibration and shaking caused by uneven torque during rotation, and improving the smoothness and precision of rotation. The outer driving mechanism 350 is arranged on both sides of the driving groove 312, which is fitted on both sides of the inner wall of the driving groove 312. The outer driving mechanism 350 and the inner driving mechanism 340 cooperate to make the rotary force more uniform and stable. Multi-point driving not only enhances the stability of rotation, but also improves the carrying capacity of the system, reducing the risk of equipment damage caused by uneven load. It can improve the performance and reliability of the spraying device.

[0033] The clamping part 320 clamps the hollow inner wall of the metal rod, and the clamping part 320 comprises a fastening device and a clamping device, the clamping device is attached to the inner wall surface of the metal rod, and the clamping device is displaced through the fastening device, thereby the clamping device can be displaced to adapt to metal rods of different diameters, and the clamping device can be uniformly and firmly attached to the inner wall surface of the metal rod at all times, so that the clamping device can flexibly cope with metal rods of different sizes and shapes without frequent replacement of the clamping device, thereby improving the continuity and efficiency of production. In particular, in the production mode of multiple varieties and small batches, flexibility is particularly important. The displacement control of the fastening device can realize precise adjustment of the clamping force, avoiding damage to the metal rod or clamping failure due to excessive or insufficient clamping force. Uniform clamping force not only protects the processed metal rod, but also improves the reliability and service life of the system. Higher automation level and production flexibility are achieved. Not only the workload of the operator is reduced, but also the production efficiency and product quality stability are improved. The adjustment of the clamping device can avoid damage to the metal rod caused by uneven clamping force, prolonging the service life of the metal rod. At the same time, multi-point driving reduces the wear and failure rate of the equipment, prolongs the service life of the equipment, and reduces the maintenance and maintenance cost. The quality of the sprayed layer is improved in many aspects, the coating thickness is more uniform, the generation of bubbles, cracks and other coating defects is reduced, and the adhesion and durability of the coating are improved.

[0034] In some embodiments of the present application, the rotating device comprises a rotating ring 311 and a connecting block 313, the rotating ring 311 is sleeved on the inner driving mechanism 340, a plurality of connecting blocks 313 are uniformly arranged between the rotating ring 311 and the inner driving mechanism 340, and the plurality of connecting blocks 313 are fixedly connected to the inner driving mechanism 340. A second sliding groove 314 is formed in the connecting block 313, and the first sliding groove corresponds to the second sliding groove 314.

[0035] Specifically, the rotating ring 311 is sleeved on the driving shaft of the inner driving mechanism 340, the inner wall of the rotating ring 311 is uniformly provided with a plurality of connecting blocks 313, the connecting blocks 313 are all directed to the axis of the rotating ring 311, the other end of the connecting block 313 is fixedly connected to the driving shaft of the inner driving mechanism 340, the inner driving mechanism 340 comprises a motor and a driving shaft, the driving shaft is directly driven to rotate by the motor, thereby driving the rotating ring 311 and the connecting block 313 to rotate, when the metal rod needs to be clamped, the rotating ring 311 of the rotating device is located outside the metal rod, so it will not affect the clamping of the clamping device. At the same time, the connecting block 313 is L-shaped, one end of the long side of the connecting block 313 is connected to the inner wall of the rotating ring 311, and the short side is attached to the driving shaft of the inner driving mechanism 340.

[0036] It can be understood that the stability and clamping effect of the embodiment are improved by the rotating device, which includes a rotating ring 311 and a connecting block 313. The rotating ring 311 is sleeved on the drive shaft of the inner driving mechanism 340, and a plurality of connecting blocks 313 are uniformly arranged between the rotating ring 311 and the inner driving mechanism 340, and the plurality of connecting blocks 313 are fixedly connected to the inner driving mechanism 340. The firm connection between the rotating ring 311 and the inner driving mechanism 340 is ensured, so that when the inner driving mechanism 340 directly drives the drive shaft to rotate through the motor, the rotating force can be uniformly transmitted to the rotating ring 311, thereby driving the entire rotating clamping unit 3 to rotate synchronously. Not only improves the stability and precision of rotation, reduces the vibration and displacement caused by uneven torque during rotation, but also enhances the overall rigidity and anti-vibration ability of the system, so that the equipment can maintain high stability during high-speed rotation and spraying, and improve the quality and efficiency of spraying.

[0037] The L-shaped design of the connecting block 313 further optimizes the uniformity of the rotating device. One end of the long side of the connecting block 313 is connected to the inner wall of the rotating ring 311, and the short side is attached to the drive shaft of the inner driving mechanism 340, so that the connecting block 313 can transmit the rotating force while reducing the torque loss caused by the deformation of the connecting block 313 during rotation. The connecting block 313 points to the axis of the rotating ring 311, ensuring uniform distribution of the rotating force and further improving the stability of rotation. The inner wall of the rotating ring 311 is uniformly provided with a plurality of connecting blocks 313, which not only improves the connection strength between the rotating ring 311 and the inner driving mechanism 340, but also enhances the rigidity of the overall structure. The rotating ring 311 is sleeved on the drive shaft of the inner driving mechanism 340, so that a tight fitting structure is formed between the rotating ring 311 and the drive shaft, reducing the gap and shaking during rotation and further improving the stability of the system. When the metal rod needs to be clamped, the rotating ring 311 of the rotating device is located on the outside of the metal rod, so it will not affect the clamping of the metal rod by the clamping device. The metal rod can be easily inserted and removed, reducing the time and complexity of loading and unloading the metal rod, and improving the continuity and efficiency of production. At the same time, there is space between the outside of the rotating ring 311 and the metal rod, which avoids damage to the coating and scratches on the surface of the metal rod caused by friction, and protects the spraying quality of the processed metal rod.

[0038] The inner driving mechanism 340 includes a motor and a drive shaft, which is directly driven to rotate by the motor, thereby driving the rotating ring 311 and the connecting block 313 to rotate. Direct drive reduces the transmission links, reduces the equipment downtime and maintenance frequency caused by transmission mechanism failure or wear, and improves the reliability and service life of the system. The L-shaped design of the connecting block 313 not only transmits the rotating force, but also provides additional structural support.

[0039] In some embodiments of the present application, the fastening device comprises a fastening ring 321 and a fastening driving member 322, a sliding block is formed in the inner side of the fastening ring 321, the sliding block is in sliding connection with the first sliding groove and the second sliding groove 314, one end of the fastening driving member 322 is fixedly arranged with the connecting block 313, and the other end of the fastening driving member 322 abuts against the fastening ring 321.

[0040] In some embodiments of the present application, referring to Figure 3 As shown in the figure, the clamping device comprises a clamping ring 331, a clamping block 332, a clamping rod 333, a clamping member 334 and a torsion spring 335, the outer surface of the fastening ring 321 is coaxially provided with the clamping ring 331, the clamping ring 331 is uniformly provided with a rectangular groove 360, the clamping rod 333 is arranged in the rectangular groove 360, the torsion spring 335 is sleeved on the clamping rod 333, the two ends of the clamping rod 333 are respectively connected with the clamping block 332 and the clamping member 334, and the clamping block 332 is located between the clamping ring 331 and the fastening ring 321.

[0041] Specifically, the fastening device comprises a fastening ring 321 and a fastening driving member 322, a sliding block is formed in the inner side of the fastening ring 321, the fastening ring 321 is sleeved on the upper surface of the connecting block 313 through the sliding block, the sliding connection between the sliding block and the sliding groove can make the fastening ring 321 displace, the fastening driving member 322 is arranged on the connecting block 313, and the fastening driving member 322 can control the displacement of the fastening ring 321, the clamping device comprises a clamping ring 331, the clamping ring 331 is arranged on the outer surface of the fastening ring 321, the clamping ring 331 is uniformly provided with a rectangular groove 360, the clamping rod 333 is arranged in the rectangular groove 360, the clamping block 332 is arranged at one end of the clamping rod 333 close to the fastening ring 321, the clamping block 332 is in trapezoidal shape, the inclined surface of the clamping block 332 is attached to the fastening ring 321, the clamping member 334 is arranged at the other end of the clamping rod 333, the clamping member 334 is used to attach to the inner wall of the metal rod to prevent sliding, when the fastening ring 321 displaces, the fastening ring 321 will abut against the clamping block 332, and then the clamping block 332 will displace to drive the clamping rod 333 and the clamping member 334 to displace, the position of the clamping member 334 can be controlled by controlling the position of the fastening ring 321, the clamping force of the clamping member 334 on the inner wall of the metal rod can be controlled, when clamping is not needed, the fastening ring 321 resets, and then the clamping device resets through the torsion spring 335 on the clamping rod 333.

[0042] It can be understood that the stability and clamping effect are improved by the combination of the fastening device and the clamping device. The fastening device includes a fastening ring 321 and a fastening driving member 322. The inside of the fastening ring 321 is provided with a sliding block, which is in sliding connection with the first sliding groove of the inner driving mechanism 340 and the second sliding groove 314 of the connecting block 313. The fastening ring 321 is sleeved on the upper surface of the connecting block 313 through the sliding block. Through the sliding connection of the sliding block and the sliding groove, the fastening ring 321 can be displaced. The fastening driving member 322 is arranged on the connecting block 313. The displacement of the fastening ring 321 can be controlled through the fastening driving member 322. The stability and accuracy of the fastening ring 321 during movement are ensured, so that the clamping force can be uniformly transmitted to the metal rod, avoiding the damage and clamping failure of the metal rod caused by uneven clamping force. The clamping device includes a clamping ring 331, a clamping block 332, a clamping rod 333, a clamping piece 334 and a torsional spring 335. The outer surface of the fastening ring 321 is coaxially provided with the clamping ring 331. The clamping ring 331 is uniformly provided with a rectangular groove 360. The clamping rod 333 is arranged in the rectangular groove 360. The clamping block 332 is arranged at one end of the clamping rod 333 close to the fastening ring 321. The clamping block 332 is in trapezoidal shape, and the inclined surface thereof is attached to the fastening ring 321. The clamping piece 334 is arranged at the other end of the clamping rod 333, and is used to attach to the inner wall of the metal rod to prevent sliding. The trapezoidal clamping block 332 not only increases the contact area of the clamping piece 334 and improves the clamping force, but also realizes the smooth movement of the clamping rod 333 through the inclined surface of the clamping block 332 when the fastening ring 321 is displaced, so as to ensure that the clamping piece 334 can uniformly and stably attach to the inner wall of the metal rod. When the fastening ring 321 is displaced, the fastening ring 321 will abut against the clamping block 332, and then the clamping block 332 will be displaced to drive the clamping rod 333 and the clamping piece 334 to be displaced. By controlling the position of the fastening ring 321, the clamping force of the clamping piece 334 to the inner wall of the metal rod can be controlled. Not only the metal rod is protected, but also the reliability and service life are improved. More importantly, when clamping is not needed, the fastening ring 321 is reset, and the clamping device is reset through the torsional spring 335 on the clamping rod 333. Automatic reset makes the clamping device quickly return to the initial position when clamping is not needed, reduces the time and complexity of loading and unloading the metal rod, and improves the production efficiency. The torsional spring 335 not only provides the reset force of the clamping device, but also can absorb and buffer the impact force generated during clamping, reduce the impact and wear on the equipment, and prolong the service life of the equipment. In addition, the design of the torsional spring 335 makes the clamping device have certain elasticity and adaptability, which can automatically adjust the clamping force when clamping metal rods of different diameters, and ensure the stability and consistency of clamping. Not only the continuity of production is improved, but also the stability and uniformity of the clamping force are ensured, and the spraying defects caused by the change of the clamping force are reduced. In addition, the first sliding groove and the second sliding groove 314 can avoid excessive displacement of the fastening ring 321.

[0043] In some embodiments of the present application, the outer driving mechanism 350 includes an outer driving motor 351 and an outer driving roller 352, the output shaft of the outer driving motor 351 is rotationally connected to the outer driving roller 352, and the outer driving roller 352 is clamped into the driving groove 312 and in contact with the inner bottom wall of the driving groove 312.

[0044] In some embodiments of the present application, the outer driving mechanism 350 further includes a rotating shaft and an outer driving base 353, the outer driving base 353 is fixedly connected to the spraying base 1, and the rotating shaft is coaxially arranged on the outer driving roller 352, and both ends of the rotating shaft are rotationally connected to the outer driving base 353.

[0045] Specifically, the outer driving base 353 is arranged on the upper surface of the spraying base 1, the outer driving roller 352 is arranged on the outer driving base 353, the outer driving roller 352 is fixed on the outer driving base 353 by the rotating shaft while not affecting its rotation, the outer driving roller 352 is driven to rotate by the outer driving motor 351, and then the outer driving mechanism 350 can cooperate with the inner driving mechanism 340 to rotate the rotating ring 311 at multiple points.

[0046] It can be understood that the outer driving mechanism 350 enhances the stability of rotation. The outer driving roller 352 is clamped into the driving groove 312 and in contact with the inner bottom wall of the driving groove 312, which ensures that the outer driving roller 352 can always maintain good contact with the rotating device during rotation, reducing vibration and shaking caused by poor contact. The rotation of the outer driving roller 352 is directly driven by the output shaft of the outer driving motor 351, which reduces the transmission links and reduces the frequency of equipment downtime and maintenance caused by transmission mechanism failure or wear. The cooperation of the outer driving roller 352 and the inner driving mechanism 340 enables the rotating force to be transmitted to the rotating ring 311 more uniformly and stably, further improving the smoothness and precision of rotation and ensuring the uniformity and thickness consistency of the coating. Secondly, the outer driving mechanism 350 improves the efficiency and flexibility of rotation. The outer driving motor 351 can realize precise speed control, and by adjusting the output power and speed of the outer driving motor 351, the rotation speed and direction can be flexibly adjusted according to the requirements of different spraying processes. Not only does it improve the effect of rotation, but also makes the equipment adaptable to a variety of different spraying processes, improving the versatility and flexibility of the equipment. The close cooperation of the outer driving roller 352 and the driving groove 312 enables the outer driving roller 352 to provide stable support during rotation, reducing friction and energy loss during rotation and improving the efficiency of rotation. The multi-point rotation enables the rotating ring 311 to be subjected to uniform rotating force at multiple positions, reducing the torque imbalance and rotation instability caused by single-point driving, and further improving the stability and smoothness of rotation.

[0047] In some embodiments of the present application, the upper end surface of the outer drive base 353 is symmetrically provided with a support wheel 354 for assisting rotation in front and back of the outer drive roller 352.

[0048] It can be understood that by symmetrically providing the support wheel 354 for assisting rotation in front and back of the outer drive roller 352 on the upper end surface of the outer drive base 353, the rotation stability is enhanced, and the support wheel 354 for assisting rotation improves the rotation stability of the outer drive roller 352. The support wheel 354 is provided symmetrically in front and back of the outer drive roller 352, so that the outer drive roller 352 is additionally supported and balanced during rotation. The symmetric support reduces the vibration and shaking of the outer drive roller 352 during rotation, ensuring smooth rotation of the outer drive roller 352, thereby improving the rotation stability, the quality and consistency of spraying. Secondly, the support wheel 354 improves the service life of the outer drive roller 352. The support wheel 354 disperses the load borne by the outer drive roller 352 during rotation, reducing direct friction between the outer drive roller 352 and the drive groove 312. Dispersion of load prolongs the service life of the outer drive roller 352, reduces the frequency of replacement and maintenance costs due to wear and tear. Furthermore, the anti-vibration capability is improved. The symmetric arrangement of the outer drive roller 352 and the support wheel 354 forms a stable support structure, so that the rotating ring 311 can resist external vibration and impact during rotation. Anti-vibration not only protects the outer drive roller 352 and the rotating ring 311, but also reduces the impact on the spraying base 1 and other components, improving the anti-vibration capability and stability of the entire system.

[0049] In some embodiments of the present application, the spraying part includes a spraying barrel 220 and a spraying gun 230, one side of the spraying barrel 220 is connected with the driving part 210, and the lower end of the spraying barrel 220 is connected with the spraying gun 230.

[0050] In some embodiments of the present application, the spraying part further includes a blowing device 240 for blowing air to the spraying gun 230.

[0051] It can be understood that the spraying part includes a spraying barrel 220 and a spraying gun 230, one side of the spraying barrel 220 is connected with the driving part 210, and the lower end of the spraying barrel 220 is connected with the spraying gun 230. In addition, the spraying part further includes a blowing device 240, which is used to blow air to the spraying gun 230 to prevent un-melted powder from being adsorbed and gathered on the periphery of the nozzle, so as to avoid the formation of un-melted, loose and low-bonding powder groups on the coating formed on the substrate surface. The blowing device 240 improves the uniformity of the coating. During the thermal spraying process, un-melted powder is easily adsorbed on the periphery of the nozzle, leading to uneven distribution of the sprayed material on the substrate surface. The blowing device 240 prevents the adsorption and gathering of un-melted powder by blowing air, so that the distribution of the sprayed material on the substrate surface is more uniform. Uniform distribution not only avoids the problem of inconsistent coating thickness, but also reduces bubbles, cracks and other defects in the coating, improving the overall quality and aesthetics of the coating. The blowing device 240 also improves the bonding strength of the coating. The gathering of un-melted powder on the periphery of the nozzle not only affects the uniformity of the coating, but also causes the formation of loose powder groups inside the coating. These powder groups have low bonding strength and are prone to falling off or cracking during use, affecting the durability and performance of the coating. The blowing device 240 removes these un-melted powders in time by blowing air, avoiding the formation of loose powder groups, thereby improving the bonding strength of the coating. The coating with high bonding strength is more stable during use and is less likely to fall off or crack, prolonging the service life of the coating and reducing maintenance and repair costs. The blowing device 240 improves the quality of the coating. During the thermal spraying process, the adsorption and gathering of un-melted powder not only affect the uniformity and bonding strength of the coating, but also cause impurities and unevenness on the surface of the coating. The blowing device 240 removes these un-melted powders and impurities in time by continuous blowing, ensuring the cleanliness and flatness of the coating surface. The clean and flat surface of the coating not only improves the appearance quality of the product, but also enhances the protective performance of the coating, allowing it to maintain good performance and durability in various environmental conditions.

[0052] In some embodiments of the present application, the surface of the rotating clamping unit 3 is coated with a high-temperature-resistant and corrosion-resistant coating.

[0053] It can be understood that the high-temperature-resistant and corrosion-resistant coating improves the stability of the rotary clamping unit 3 in a high-temperature environment. During the thermal spraying process, the substrate surface needs to be treated at high temperature, so the rotary clamping unit 3 must be able to withstand long-term high-temperature work. The high-temperature-resistant coating ensures that the rotary clamping unit 3 does not deform, crack or have other structural problems in a high-temperature environment, maintaining its mechanical properties and working stability. The coating not only improves the heat resistance of the rotary clamping unit 3, but also reduces material damage caused by high temperatures, prolonging the service life of the equipment. Secondly, the high-temperature-resistant and corrosion-resistant coating improves the corrosion resistance of the rotary clamping unit 3 in a corrosive environment. During the thermal spraying process, the sprayed material and the working environment may contain corrosive substances, and the use of corrosion-resistant coating can prevent these corrosive substances from eroding the surface of the rotary clamping unit 3, protecting the internal structure of the equipment from damage. Not only does it prolong the service life of the rotary clamping unit 3, but it also improves the reliability and safety of the equipment. Furthermore, it improves the durability and maintenance convenience of the rotary clamping unit 3. The high-temperature-resistant and corrosion-resistant coating not only improves the surface hardness and wear resistance of the rotary clamping unit 3, but also reduces surface damage caused by friction and impact. The coating allows the rotary clamping unit 3 to maintain good performance and appearance during long-term use, reducing equipment failures and maintenance needs caused by surface damage.

[0054] The spraying device for thermal spraying in one of the above embodiments can displace the spraying part along the X-axis direction by driving the driving part, which facilitates the spraying part to spray onto the surface of the metal rod, and improves the coverage range and flexibility of spraying. The spraying part can be accurately moved according to the specific position and length of the metal rod, ensuring that the sprayed material uniformly covers the entire surface of the metal rod, reducing dead angles, improving spraying efficiency and quality, reducing the generation of bubbles, cracks and other coating defects, ensuring the thickness and adhesion of the coating, and improving the performance and reliability of the final product. Furthermore, the rotating part of the rotary clamping unit is driven to rotate by the inner driving mechanism and the outer driving mechanism, making the rotation more stable and uniform. Through multi-point driving, vibration and imbalance caused by single-point driving are reduced, ensuring the stability and consistency of the metal rod during rotation. The clamping part is displaced by the fastening unit, and the displacement of the clamping device can be controlled, which can adapt to metal rods of different diameters, expand the application range of the equipment, and improve the continuity and efficiency of production. At the same time, the displacement control of the fastening unit can realize accurate adjustment of the clamping force, avoiding damage to the metal rod or clamping failure caused by excessive or insufficient clamping force.

[0055] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A spraying apparatus for thermal spraying, characterized in that, include: A spraying base, wherein vertical rods are fixedly connected to both the left and right sides of the spraying base, and a horizontal rod is fixedly connected between the two vertical rods; A spraying unit includes a drive unit and a spraying unit. The drive unit is disposed on the top of the crossbar, and the spraying unit is disposed on one side of the drive unit, and the drive unit is connected to the spraying unit. Two rotary clamping units are provided, respectively located on both sides of the base. Each unit includes a rotating part and a clamping part. The rotating part includes a driving device and a rotating mechanism. The rotating mechanism has a driving groove on its surface. The driving device includes an inner driving mechanism and an outer driving mechanism. The inner driving mechanism is located on the inner axis of the rotating mechanism and has a first sliding groove on its surface. The outer driving mechanism is located on both sides of the driving groove. The clamping part includes a fastening device and a clamping device. The fastening device is connected to the rotating mechanism.

2. The spraying apparatus for thermal spraying according to claim 1, characterized in that, The rotating device includes a rotating ring and connecting blocks. The rotating ring is sleeved on the inner drive mechanism. A plurality of connecting blocks are evenly arranged between the rotating ring and the inner drive mechanism, and the plurality of connecting blocks are fixedly connected to the inner drive mechanism. A second sliding groove is formed on the plurality of connecting blocks, and the first sliding groove corresponds to the second sliding groove.

3. The spraying apparatus for thermal spraying according to claim 2, characterized in that, The fastening device includes a fastening ring and a fastening drive. A slider is provided on the inner side of the fastening ring. The slider is slidably connected to the first slide groove and the second slide groove. One end of the fastening drive is fixedly disposed with the connecting block, and the other end of the fastening drive abuts against the fastening ring.

4. The spraying apparatus for thermal spraying according to claim 3, characterized in that, The clamping device includes a clamping ring, a clamping block, a clamping rod, a clamping member, and a torsion spring. The clamping ring is coaxially arranged on the outer surface of the fastening ring. The clamping ring has rectangular grooves evenly spaced. The clamping rod is arranged in the rectangular grooves. The torsion spring is sleeved on the clamping rod. The two ends of the clamping rod are respectively connected to the clamping block and the clamping member, and the clamping block is located between the clamping ring and the fastening ring.

5. The spraying apparatus for thermal spraying according to claim 4, characterized in that, The external drive mechanism includes an external drive motor and an external drive roller. The output shaft of the external drive motor is rotatably connected to the external drive roller, and the external drive roller is engaged in the drive groove and contacts the inner bottom wall of the drive groove.

6. The spraying apparatus for thermal spraying according to claim 5, characterized in that, The external drive mechanism also includes a rotating shaft and an external drive base. The external drive base is fixedly connected to the spraying base. The external drive roller is coaxially provided with a rotating shaft, and both ends of the rotating shaft are rotatably connected to the external drive base.

7. The spraying apparatus for thermal spraying according to claim 6, characterized in that, The upper surface of the external drive base is provided with a support wheel that assists in rotation, symmetrically rotating with the external drive roller.

8. The spraying apparatus for thermal spraying according to claim 1, characterized in that, The spraying unit includes a spraying bucket and a spray gun. One side of the spraying bucket is connected to the drive unit, and the lower end of the spraying bucket is connected to the spray gun.

9. The spraying apparatus for thermal spraying according to claim 8, characterized in that, The spraying unit also includes a blower for blowing air onto the spray gun.

10. The spraying apparatus for thermal spraying according to claim 1, characterized in that, The surface of the rotary clamping unit is coated with a high-temperature resistant and corrosion-resistant coating.

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