A laser cladding device for steel pipe surface

Abstract

The present invention discloses a laser cladding device for the surface of a steel pipe, which belongs to the field of laser cladding technology, and comprises a base and a steel pipe, wherein a support rod is fixedly provided on the base, wherein the number of the support rods is provided with two, and a threaded rod is provided between the two support rods for rotation through a bearing, and a first motor is fixedly provided on one of the support rods, wherein the first motor is fixedly arranged with the threaded rod, and a positioning slide rod is fixedly provided on the base, and a moving rod is symmetrically provided on the threaded rod, wherein the moving rod and the positioning slide rod are slidably arranged, and a fixing mechanism for fixing steel pipes of different diameters is fixedly provided on the moving rod, and the fixing mechanism comprises a fixing rod, a fixing plate, a center rod, an abutment member and a sealing plate. The present invention sets a detection mechanism, and detects the flatness of the laser cladding part of the steel pipe through the detection mechanism, and simultaneously detects the transmittance during the detection, and the angle can be adjusted at any time during the detection, so that the detection effect is more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cladding, and in particular relates to a steel pipe surface laser cladding device. Background Art

[0002] Laser cladding is a surface modification technology that uses high power to quickly melt materials and clads them on the surface of the workpiece to form a coating layer. The quality stability of the workpieces produced by laser cladding technology is poor and may not meet the accuracy required by users. This is one of the reasons why laser cladding technology has not been widely used in industry. In addition, some defects may occur during the laser cladding process, such as cracks, pores, etc., which may affect the working efficiency of the laser cutting machine. Summary of the invention

[0003] The purpose of the present invention is to provide a steel pipe surface laser cladding device to solve the problems of detecting whether the steel pipe is uneven and light-transmitting.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0005] A steel pipe surface laser cladding device according to the present invention comprises a base and a steel pipe, the base is fixedly provided with a support rod, the number of the support rods is provided with two, a threaded rod is rotatably provided between the two support rods through a bearing, a first motor is fixedly provided on one of the support rods, the first motor is fixedly arranged with the threaded rod, a positioning slide rod is fixedly provided on the base, a moving rod is symmetrically provided on the threaded rod, the moving rod and the positioning slide rod are slidably arranged, a fixing mechanism for fixing steel pipes of different diameters is fixedly provided on the moving rod, the fixing mechanism comprises a fixing rod, a fixing plate, a center rod, an abutment and a sealing plate, the fixing rod is fixedly arranged at the center of the moving rod, the fixing plate is fixedly arranged with the fixing rod, and the center rod rotates with the fixing plate through a bearing. The invention relates to a method for manufacturing a plurality of electric push rods for conveying movable parts, wherein the plurality of electric push rods are provided with a plurality of abutment members and are fixedly provided with the center rod, the sealing plate is buckled with the center rod, the abutment member comprises a multi-stage electric push rod and an abutment plate, the multi-stage electric push rods are provided in plurality and are evenly provided along the circumferential direction of the center rod, the output end of the multi-stage electric push rod is fixedly provided with the abutment plate, the abutment plate is abutted against the inner wall of the steel pipe, a limit adjustment mechanism for fixing the steel pipe and driving it to rotate is fixedly provided on the base, a detection mechanism for detecting the cladding part of the steel pipe surface is provided on the base, the detection mechanism comprises an adjustment component and a detection component, the adjustment component comprises a screw rod, a limit sliding rod, a third motor, a connecting rod and a positioning elbow, a plate body is provided on the top of the base, and the plate body is provided in two, and the two The plate body is rotatably arranged with the screw rod through a bearing, the limit slide rod is fixedly arranged with the base, the connecting rod is threaded with the screw rod, the connecting rod is slidably arranged with the limit slide rod, the third motor is fixedly arranged with the base and the output end is fixedly arranged with the screw rod, the positioning elbow is fixedly arranged with the connecting rod, the detection component includes a detection frame, a third gear, a fourth gear, a fourth motor and a detection part, the detection frame is fixedly arranged with the positioning elbow and the detection frame is concentrically arranged with the steel pipe, the third gear is rotatably arranged in the detection frame through a bearing, a circular shell is fixedly arranged on the outer surface of the detection frame, the fourth gear is rotatably arranged inside the circular shell through a bearing, the third gear is meshed with the fourth gear, the fourth motor is fixedly arranged with one side of the outer wall of the circular shell and the output end The detection member is fixedly arranged with the fourth gear, the detection member is provided with a plurality of detection members and is evenly arranged along the circumferential direction of the detection frame, the inner wall of the detection frame is provided with a slide groove for the detection member to slide, the detection member comprises a second electric push rod, a fixed cylinder, an adjustment rod, a detection ball, a cross bar, a distance detector, a display and a light bulb, the second electric push rod is fixedly arranged with the third gear, the fixed cylinder is fixedly arranged with the output end of the second electric push rod, the adjustment rod is slidably arranged with the inside of the fixed cylinder through a reset spring, a plate body is fixedly arranged at the bottom of the adjustment rod, the bottom of the plate body is fixedly arranged with the detection ball, the cross bar is fixedly arranged with the adjustment rod, a slide groove for the cross bar to slide is provided on the fixed cylinder, the distance detector is fixedly arranged with the top of the fixed cylinder, and the display is fixedly arranged with the fixed cylinder,There are multiple bulbs and they are fixed to the bottom of the board.

[0006] Preferably, the limit adjustment mechanism includes a positioning plate, a limit circular frame, a first gear, a first electric push rod, a fixing plate, a second gear, a second motor and a support plate. The positioning plate is fixed to the base, the limit circular frame is fixed to the positioning plate, and the limit circular frame is concentrically arranged with the steel pipe. Two first gears are provided and the two first gears are fixedly arranged. The connection between the two first gears and the limit circular frame is rotatably arranged through a bearing. There are multiple first electric push rods and multiple push rods are evenly arranged in opposite directions along the circumference of the first gear. The first electric push rod is fixed to the first gear, the fixing plate is fixed to the output end of the first electric push rod, and the fixing plate is abutted against the surface of the steel pipe, the support plate is fixed to the positioning plate, the second motor is fixed to the support plate, the output end of the second motor is fixed to the second gear, and the second gear is meshed with the first gear.

[0007] Preferably, an anti-light-transmitting sticker is fixedly provided on the outer wall of the sealing plate.

[0008] The present invention is beneficial in that:

[0009] The present invention sets a detection mechanism to detect the flatness of the laser cladding portion of the steel pipe, and simultaneously detects the transmittance during the detection. The angle can be adjusted at any time during the detection, so that the detection effect is more accurate.

[0010] The present invention can fix steel pipes of different diameters by arranging a limit adjustment mechanism, and drive the steel pipe to perform 360-degree position adjustment without dead angles during the detection process.

[0011] The present invention provides a fixing mechanism, through which steel pipes of different diameters can be fixed, thereby effectively increasing the number of times the device is used, saving production costs and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings of the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a steel pipe surface laser cladding device of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the overall structure of a steel pipe surface laser cladding device of the present invention. Figure 2 ;

[0015] Figure 3 It is a schematic diagram of the connection structure of the fixing mechanism of the present invention;

[0016] Figure 4 is an enlarged view of the fixing mechanism of the present invention;

[0017] Figure 5 It is a schematic diagram of the connection structure of the steel pipe of the present invention;

[0018] Figure 6 It is an enlarged structural schematic diagram of the limit adjustment mechanism of the present invention;

[0019] Figure 7 It is an enlarged structural schematic diagram of the detection mechanism of the present invention;

[0020] Figure 8 It is a schematic diagram of the enlarged structure of the detection component of the present invention;

[0021] Fig. 9 It is a schematic diagram of the enlarged structure of the detection element of the present invention.

[0022] Description of reference numerals:

[0023] 1. Base; 2. Steel pipe; 3. Support rod; 4. Threaded rod; 5. First motor; 6. Positioning slide rod; 7. Moving rod; 8. Fixing mechanism; 81. Fixing rod; 82. Fixing plate; 83. Center rod; 84. Abutment; 841. Multi-stage electric push rod; 842. Abutment plate; 9. Sealing plate; 10. Limit adjustment mechanism; 101. Positioning plate; 102. Limiting circular frame; 103. First gear; 104. First electric push rod; 105. Fixing plate; 106. Second gear; 107. Second motor; 108. Support plate; 11. Detection machine Structure; 111, adjustment component; 1111, lead screw; 1112, limit slide; 1113, third motor; 1114, connecting rod; 1115, positioning elbow; 112, detection component; 1121, detection frame; 1122, third gear; 1123, fourth gear; 1124, fourth motor; 113, detection piece; 1131, second electric push rod; 1132, fixing cylinder; 1133, adjustment rod; 1134, detection ball; 1135, cross bar; 1136, distance detector; 1137, display; 1138, light bulb. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] like Figure 1 - Fig. 9As shown, a steel pipe surface laser cladding device according to the present invention includes a base 1 and a steel pipe 2, a support rod 3 is fixedly provided on the base 1, and the number of the support rods 3 is provided with two, a threaded rod 4 is rotatably provided between the two support rods 3 through a bearing, a first motor 5 is fixedly provided on one support rod 3, and the first motor 5 is fixedly arranged with the threaded rod 4, a positioning slide rod 6 is fixedly provided on the base 1, a moving rod 7 is symmetrically provided on the threaded rod 4, and the moving rod 7 is slidably arranged with the positioning slide rod 6, and a fixing mechanism 8 for fixing steel pipes 2 of different diameters is fixedly provided on the moving rod 7, and the fixing mechanism 8 includes a fixing rod 81, a fixing plate 82, a center rod 83, an abutment 84 and a sealing plate 9, the fixing rod 81 is fixedly arranged at the center of the moving rod 7, and the fixing plate 82 It is fixedly arranged with the fixed rod 81, the center rod 83 is rotatably arranged with the fixed plate 82 through the bearing, the abutment member 84 is provided with multiple groups and is fixedly arranged with the center rod 83, the sealing plate 9 is buckled with the center rod 83, the abutment member 84 includes a multi-stage electric push rod 841 and an abutment plate 842, the multi-stage electric push rod 841 is provided with a plurality of numbers and is evenly arranged along the circumferential direction of the center rod 83, the output end of the multi-stage electric push rod 841 is fixedly arranged with the abutment plate 842, the abutment plate 842 is abutted against the inner wall of the steel pipe 2, a limit adjustment mechanism 10 for fixing the steel pipe 2 and driving it to rotate is fixedly arranged on the base 1, a detection mechanism 11 for detecting the cladding part of the surface of the steel pipe 2 is provided on the base 1, and an anti-light transmission sticker is fixedly arranged on the outer wall of the sealing plate 9;

[0029] First, the device is transferred to the place where it needs to be used. After the steel pipe 2 passes through the limit adjustment mechanism 10 and the detection mechanism 11 in sequence, the two ends of the steel pipe 2 are aligned with the fixing mechanism 8, and the first motor 5 is started to drive the threaded rod 4 to rotate, so that the threaded rod 4 drives the moving rod 7 to move on the positioning slide rod 6, so that the two symmetrically arranged moving rods 7 move synchronously in opposite directions, and the center rods 83 in the two fixing mechanisms 8 are inserted into the two ends of the steel pipe 2, so that the two ends of the steel pipe 2 abut against the fixing plate 82, and then the rotation of the first motor 5 is stopped. After completion, the multi-stage electric push is started. The rod 841 drives the abutment plate 842 to rise, so that multiple abutment plates 842 abut against the inner wall of the steel pipe 2, so that the position of the steel pipe 2 is fixed. The abutment plates 842 on different groups of abutment members 84 are staggered, so that the abutment force distribution of the abutment plate 842 on the inside of the steel pipe 2 is expanded, and the connection between the two is strengthened. The sealing plate 9 is a detachable connection. Sealing plates 9 of the same diameter are selected according to steel pipes 2 of different diameters. The purpose is to make the sealing plate 9 seal the light source inside the steel pipe 2. In the later detection mechanism 11, the light transmittance of the steel pipe 2 after laser cladding can be detected.

[0030] Among them, the limit adjustment mechanism 10 includes a positioning plate 101, a limit circular frame 102, a first gear 103, a first electric push rod 104, a fixed plate 105, a second gear 106, a second motor 107 and a support plate 108. The positioning plate 101 is fixedly arranged with the base 1, the limit circular frame 102 is fixedly arranged with the positioning plate 101, and the limit circular frame 102 is arranged concentrically with the steel pipe 2. Two first gears 103 are provided and the two first gears 103 are fixedly arranged. The connection between the two first gears 103 and the limit circular frame 102 is rotatably arranged through a bearing. There are multiple first electric push rods 104 and multiple first electric push rods 104 are evenly arranged in the opposite direction along the circumference of the first gear 103. The first electric push rod 104 is fixedly arranged with the first gear 103, the fixed plate 105 is fixedly arranged with the output end of the first electric push rod 104, and the fixed plate 105 is abutted against the surface of the steel pipe 2. The support plate 108 is fixedly arranged with the positioning plate 101, the second motor 107 is fixedly arranged with the support plate 108, the output end of the second motor 107 is fixedly arranged with the second gear 106, and the second gear 106 is meshed with the first gear 103. After the steel pipe 2 is connected with the fixing mechanism 8, the steel pipe 2 is connected through the limit adjustment mechanism 10, so as to drive the required position to rotate stably during the detection process, and start the first electric push rod 104 to drive the fixing plate 105 to abut against the surface of the steel pipe 2 to achieve fixation. During the laser cladding process, when it is necessary to drive the steel pipe 2 to rotate and adjust the angle, the second motor 107 can be started to drive the second gear 106 to rotate, so that the second gear 106 drives the first gear 103 to rotate through the bearing, thereby driving the steel pipe 2 to rotate, so that the center rod 83 can rotate stably on the fixing plate 82 through the bearing.

[0031] Among them, the detection mechanism 11 includes an adjustment component 111 and a detection component 112, the adjustment component 111 includes a screw rod 1111, a limit slide rod 1112, a third motor 1113, a connecting rod 1114 and a positioning elbow 1115, a plate body is provided on the top of the base 1, and the number of the plate bodies is provided with two, and the two plates are rotatably arranged with the screw rod 1111 through a bearing, the limit slide rod 1112 is fixedly arranged with the base 1, the connecting rod 1114 is threadedly arranged with the screw rod 1111, the connecting rod 1114 is slidably arranged with the limit slide rod 1112, the third motor 1113 is fixedly arranged with the base 1 and the output end is fixedly arranged with the screw rod 1111, and the positioning elbow 1115 is fixedly arranged with the connecting rod 1114;

[0032] Secondly, the detection assembly 112 includes a detection frame 1121, a third gear 1122, a fourth gear 1123, a fourth motor 1124 and a detection member 113. The detection frame 1121 is fixedly arranged with the positioning elbow 1115 and the detection frame 1121 is arranged concentrically with the steel pipe 2. The third gear 1122 is rotatably arranged in the detection frame 1121 through a bearing. A circular shell is fixedly arranged on the outer surface of the detection frame 1121. The fourth gear 1123 is rotatably arranged inside the circular shell through a bearing. The third gear 1122 is meshed with the fourth gear 1123. The fourth motor 1124 is fixedly arranged with one side of the outer wall of the circular shell and the output end is fixedly arranged with the fourth gear 1123. There are a plurality of detection members 113 and they are evenly arranged along the circumferential direction of the detection frame 1121. A sliding groove for sliding the detection member 113 is provided on the inner wall of the detection frame 1121.

[0033] Preferably, the detection assembly 112 includes a detection frame 1121, a third gear 1122, a fourth gear 1123, a fourth motor 1124 and a detection member 113, the detection frame 1121 is fixedly arranged with the positioning elbow 1115 and the detection frame 1121 is arranged concentrically with the steel pipe 2, the third gear 1122 and the fourth gear 1123 are both rotatably arranged in the detection frame 1121 through bearings, the third gear 1122 and the fourth gear 1123 are meshed, the fourth motor 1124 is fixedly arranged with the detection frame 1121 and the output end is fixedly arranged with the fourth gear 1123, a plurality of detection members 113 are provided and are evenly arranged along the circumferential direction of the detection frame 1121, and a slide groove for sliding the detection member 113 is provided on the inner wall of the detection frame 1121;

[0034] Preferably, the detection member 113 includes a second electric push rod 1131, a fixed cylinder 1132, an adjusting rod 1133, a detection ball 1134, a cross bar 1135, a distance detector 1136, a display 1137 and a light bulb 1138. The second electric push rod 1131 is fixedly arranged with the third gear 1122, the fixed cylinder 1132 is fixedly arranged with the output end of the second electric push rod 1131, the adjusting rod 1133 is slidably arranged with the inside of the fixed cylinder 1132 through a reset spring, a plate is fixedly arranged at the bottom of the adjusting rod 1133, the bottom of the plate is fixedly arranged with the detection ball 1134, the cross bar 1135 is fixedly arranged with the adjusting rod 1133, a sliding groove for the sliding of the cross bar 1135 is opened on the fixed cylinder 1132, the distance detector 1136 is fixedly arranged with the top of the fixed cylinder 1132, the display 1137 is fixedly arranged with the fixed cylinder 1132, and a plurality of light bulbs 1138 are provided and fixedly arranged with the bottom of the plate.

[0035] The third motor 1113 is started to drive the screw rod 1111 to rotate, so that the connecting rod 1114 moves on the limit slide rod 1112, driving the positioning elbow 1115 and the detection assembly 112 to move to the laser cladding position that needs to be detected, and the second electric push rod 1131 is started to drive the fixed cylinder 1132 to descend, so that the detection ball 1134 abuts against the surface position of the cladding position of the steel pipe 2, and the third motor 1113 is started again to drive the detection member 113 to move, and the detection ball 1134 will fluctuate up and down with the curvature of the surface of the steel pipe 2, so that the adjustment rod 1133 is fixed in the fixed cylinder 1132 through the reset spring. 132 slides inside, and the cross bar 1135 moves up and down while sliding, and is recorded and displayed by the distance detector 1136 and the display 1137. The obtained value can be used to determine whether the surface is flat and meets the product qualification standards, and the light bulb 1138 is used to illuminate during movement, so as to check the light transmittance of the cladding part of the steel pipe 2. After the inspection is completed, the fourth motor 1124 can be started to drive the fourth gear 1123 to rotate, thereby driving the third gear 1122 to rotate, and then driving multiple detection parts 113 to adjust the detection position for detection, so as to make the detection effect more accurate.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made should be included in the protection scope of the present invention.

Claims

1. A steel pipe surface laser cladding device, comprising a base (1) and a steel pipe (2), characterized in that: The base (1) is fixedly provided with a support rod (3), the support rod (3) being provided with two in number, a threaded rod (4) being rotatably provided between the two support rods (3) via a bearing, a first motor (5) being fixedly provided on one of the support rods (3), the first motor (5) being fixedly provided with the threaded rod (4), a positioning slide rod (6) being fixedly provided on the base (1), a moving rod (7) being symmetrically provided on the threaded rod (4), the moving rod (7) being slidably provided with the positioning slide rod (6), a fixing mechanism (8) for fixing steel pipes (2) of different diameters being fixedly provided on the moving rod (7), the fixing mechanism (8) comprising a fixing rod (81), a fixing plate (82), a center rod (83), an abutment member (84) and a sealing The sealing plate (9) is provided with an anti-transmittance sticker on the outer wall thereof, the fixing rod (81) is fixedly arranged at the center of the moving rod (7), the fixing plate (82) is fixedly arranged on the fixing rod (81), the center rod (83) is rotatably arranged with the fixing plate (82) via a bearing, a plurality of abutment members (84) are provided and fixedly arranged with the center rod (83), the sealing plate (9) is buckled with the center rod (83), the abutment member (84) comprises a multi-stage electric push rod (841) and an abutment plate (842), the multi-stage electric push rod (841) is provided in plurality and is evenly arranged along the circumferential direction of the center rod (83), the output end of the multi-stage electric push rod (841) is fixedly arranged with the abutment plate (842), the abutment plate (842) is provided with a plurality of abutment members (841), and the abutment plate (842) is provided with abutment members (841) ... 842) is arranged to abut against the inner wall of the steel pipe (2), the base (1) is fixedly provided with a limit adjustment mechanism (10) for fixing the steel pipe (2) and driving it to rotate, the base (1) is provided with a detection mechanism (11) for detecting the cladding portion of the surface of the steel pipe (2), the detection mechanism (11) comprises an adjustment component (111) and a detection component (112), the adjustment component (111) comprises a screw rod (1111), a limit slide rod (1112), a third motor (1113), a connecting rod (1114) and a positioning elbow (1115), a plate body is provided on the top of the base (1), the plate body is provided in two, the two plate bodies are rotatably arranged with the screw rod (1111) via a bearing, the limit slide rod (1114) and the positioning elbow (1115) are provided with a plate body on the top of the base (1), the plate body is provided in two numbers, the two plate bodies are rotatably arranged with the screw rod (1111) via a bearing, the limit slide rod (1114) and the positioning elbow (1115) are provided with a plate body on the top of the base (1), the limit slide rod (1112) and the positioning elbow (1115) are provided with a plate body on the top of the base (1), ... The rod (1112) is fixedly arranged on the base (1), the connecting rod (1114) is threadedly arranged on the lead screw (1111), the connecting rod (1114) is slidably arranged on the limit slide rod (1112), the third motor (1113) is fixedly arranged on the base (1) and the output end is fixedly arranged on the lead screw (1111), the positioning elbow (1115) is fixedly arranged on the connecting rod (1114), the detection component (112) comprises a detection frame (1121), a third gear (1122), a fourth gear (1123), a fourth motor (1124) and a detection member (113), the detection frame (1121) is fixedly arranged on the positioning elbow (1115), and the detection frame (1121) is coaxially arranged with the steel pipe (2),The third gear (1122) is rotatably arranged in the detection frame (1121) via a bearing. A round shell is fixedly arranged on the outer surface of the detection frame (1121). The fourth gear (1123) is rotatably arranged inside the round shell via a bearing. The third gear (1122) is meshed with the fourth gear (1123). The fourth motor (1124) is fixedly arranged on one side of the outer wall of the round shell and the output end is fixedly arranged on the fourth gear (1123). A plurality of detection members (113) are provided and are evenly arranged along the circumferential direction of the detection frame (1121). A sliding groove for sliding the detection member (113) is provided on the inner wall of the detection frame (1121). The detection member (113) comprises a second electric push rod (1131), a fixing cylinder (1132), an adjusting rod (1133), a detection ball (1134), a cross bar (1135), and a distance detector (1136). , a display (1137) and a light bulb (1138); the second electric push rod (1131) is fixedly arranged with the third gear (1122); the fixed cylinder (1132) is fixedly arranged with the output end of the second electric push rod (1131); the adjusting rod (1133) is slidably arranged with the inside of the fixed cylinder (1132) through a return spring; a plate body is fixedly arranged at the bottom of the adjusting rod (1133); the bottom of the plate body is fixedly arranged with the detection ball (1134); the cross bar (1135) is fixedly arranged with the adjusting rod (1133); a sliding groove for sliding the cross bar (1135) is provided on the fixed cylinder (1132); the distance detector (1136) is fixedly arranged with the top of the fixed cylinder (1132); the display (1137) is fixedly arranged with the fixed cylinder (1132); and a plurality of light bulbs (1138) are provided and fixedly arranged with the bottom of the plate body.

2. A steel pipe surface laser cladding device according to claim 1, characterized in that: The position limiting adjustment mechanism (10) comprises a positioning plate (101), a position limiting circular frame (102), a first gear (103), a first electric push rod (104), a fixing plate (105), a second gear (106), a second motor (107) and a supporting plate (108); the positioning plate (101) is fixedly arranged on the base (1); the position limiting circular frame (102) is fixedly arranged on the positioning plate (101); the position limiting circular frame (102) and the steel pipe (2) are arranged coaxially; two first gears (103) are provided and the two first gears (103) are fixedly arranged; a bearing is used to rotate between the connection between the two first gears (103) and the position limiting circular frame (102) The first electric push rod (104) is provided in plurality and is evenly provided in the opposite direction along the circumference of the first gear (103); the first electric push rod (104) is fixedly provided with the first gear (103); the fixing plate (105) is fixedly provided with the output end of the first electric push rod (104); the fixing plate (105) is abutted against the surface of the steel pipe (2); the supporting plate (108) is fixedly provided with the positioning plate (101); the second motor (107) is fixedly provided with the supporting plate (108); the output end of the second motor (107) is fixedly provided with the second gear (106); and the second gear (106) is meshed with the first gear (103).

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