Coating thickness detection equipment for circular tube alloy deposition

Abstract

The invention relates to the technical field of coating thickness detection, in particular to coating thickness detection equipment for circular tube alloy deposition, which comprises a supporting rod, a base and a support are fixed on the surface of the supporting rod, a rolling shaft is arranged on the surface of the support, a sliding groove is formed in the surface of the support, a sliding plate is arranged in the sliding groove, and an extension block is fixed on the surface of the sliding plate. A U-shaped rod is inserted into the surface of the extending block, a first rolling ball is arranged at the end of the U-shaped rod, a jacking block is arranged on the surface of the first rolling ball, an inserting groove is formed in the surface of the jacking block, a second air cylinder is fixed to the surface of the extending block, and a second piston rod is arranged at the end of the second air cylinder; the device has the beneficial effects that when the inserting plate is located in the inserting groove, the detection head is located in the extending opening and makes contact with the surface of the circular pipe, and at the moment, due to the fact that the surface of the jacking block is completely attached to the surface of the circular pipe, the detection head can well abut against the surface of the circular pipe to detect the coating of the circular pipe, and the detection process can be kept stable.

Description

Technical Field

[0001] The present invention relates to the technical field of coating thickness detection, in particular to a coating thickness detection device for round tube alloy deposition. Background Art

[0002] Cladding technology: A cladding (hardfacing) process that uses a cladding heat source to deposit materials with certain properties on the surface of a substrate (workpiece) to form a metallurgical bond. The purpose of cladding is not to connect welds, but to obtain a cladding (hardfacing) metal layer with special properties such as wear resistance, heat resistance, and corrosion resistance on the surface of the workpiece.

[0003] In the prior art, the patent number is CN212931311U, and the name is a coating thickness measuring instrument, which includes a coating thickness measuring instrument operating body, an external detection line, and an external line storage cover. The external line storage cover is installed on the right side of the coating thickness measuring instrument operating body; the external detection line is arranged inside the external line storage cover; by adding the external detection line, and setting the external detection line on the right side wall of the coating thickness measuring instrument operating body using the external detection storage cover, and inserting the upper end of the external detection line into the interior of the coating thickness measuring instrument operating body through the wire plug hole protective cover, and connecting it to the detection unit inside the coating thickness measuring instrument, so that the lower end with the magnetic probe can be used to detect the thickness of the coating, so that the coating thickness measuring instrument operating body has dual-use, so that the staff will not encounter unnecessary troubles caused by carrying the wrong type of coating thickness measuring instrument during the specific measurement process, and the occurrence of measurement failure.

[0004] However, during the transportation of existing round tubes, the coating thickness is measured manually using a handheld measuring instrument. First, the manual measurement accuracy is low, and since the surface of the round tube is arc-shaped, the measuring instrument cannot be accurately held on the surface of the round tube. Summary of the Invention

[0005] The object of the present invention is to provide a coating thickness detection device for round tube alloy deposition to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a coating thickness detection device for round tube alloy deposition, comprising: A support rod, a base and a bracket are fixed on the surface of the support rod, a rolling shaft is provided on the surface of the bracket, a slide groove is provided on the surface of the bracket, a sliding plate is provided in the slide groove, an extension block is fixed on the surface of the sliding plate, a U-shaped rod is inserted on the surface of the extension block, a first rolling ball is provided on the end of the U-shaped rod, a supporting block is provided on the surface of the first rolling ball, a plug-in groove is provided on the surface of the supporting block, a second cylinder is fixed on the surface of the extension block, and a second piston rod is provided on the end of the second cylinder.

[0007] Preferably, the surface of the bracket is provided with multiple groups of rolling shafts, the rolling shafts can roll on the surface of the bracket, a round tube is placed on the top of the bracket, the round tube is supported on the surface of the rolling shaft, and the rolling shaft can drive the round tube to move on the top of the bracket after rolling, a first cylinder is fixed on the surface of the bracket, a first piston rod is provided at the end of the first cylinder, the first cylinder can drive the first piston rod to move, a slider is fixed to the other end of the first piston rod, the slider moves with the first piston rod, two groups of limit frames are fixed on the surface of the bracket, the limit frames are inserted into the inside of the slider, the slider can move outside the limit frame, and the cross-section of the limit frame is T-shaped.

[0008] Preferably, the sliding plate can move in the slide groove, and multiple groups of extension blocks are fixed on the surface of the sliding plate. The extension blocks move with the sliding plate. An inner panel is fixed inside the slide groove. Multiple groups of inner panels are provided and are located on both sides of the slide groove. A storage groove is opened on the surface of the inner panel, and one end of the storage groove is connected to a rubber strip. The rubber strip is in a raised state, and the rubber strip can be retracted into the interior of the storage groove after swinging along one end.

[0009] Preferably, a U-shaped rod is inserted into the surface of the extension block, and the U-shaped rod can move inside the extension block. A second cylinder is fixed to the surface of the extension block, and a second piston rod is provided at the end of the second cylinder. The second cylinder can drive the second piston rod to move telescopically, and the other end of the second piston rod is connected to the surface of the U-shaped rod, and the U-shaped rod moves with the second piston rod, and the end of the U-shaped rod moves inside the extension block with the second piston rod.

[0010] Preferably, a first rolling ball is fixed to the other end of the U-shaped rod, and the other end of the first rolling ball is located inside the supporting block. The first rolling ball can swing inside the supporting block. A limiting ring is fixed to the surface of the first rolling ball, and the limiting ring swings with the first rolling ball. When the first rolling ball swings, the limiting ring can be supported on the surface of the supporting block. The supporting block moves with the U-shaped rod. There are multiple groups of supporting blocks, and the surface arc shape of each group of supporting blocks is inconsistent.

[0011] Preferably, the surface of the top holding block is provided with slots and plug-in slots, an L-shaped rod is fixed to the surface of the slider, the L-shaped rod moves with the slider, a detector is fixed to the other end of the L-shaped rod, the detector moves with the L-shaped rod, a detection rod is provided on the surface of the detector, a telescopic rod is plugged into the end of the detection rod, the telescopic rod can be telescopically moved inside the detection rod, a spring is provided inside the detection rod, and the spring connects the inside of the detection rod and the end of the telescopic rod.

[0012] Preferably, a plug-in plate is provided at the end of the telescopic rod, and the plug-in plate moves with the telescopic rod. The plug-in plate can be inserted into the plug-in slot, and the telescopic rod is inserted into the slot, and the telescopic rod can move in the slot. A second rolling ball is fixed to the end of the telescopic rod, and the other end of the second rolling ball is located inside the plug-in plate, and the second rolling ball can swing inside the plug-in plate.

[0013] Preferably, a detection head is plugged into the surface of the plug board, and the detection head can be telescopically moved inside the plug board. A second spring is provided inside the plug board, and the second spring connects the detection head and the inside of the plug board. The second spring has a thrust on the detection head, so that the detection head extends out of the plug board, and when the supporting block is supported on the surface of the round tube, the end of the detection head is supported on the surface of the round tube to perform coating thickness detection on the round tube.

[0014] Preferably, a rubber pad is fixed on one side surface of the arc-shaped supporting block, and the rubber pad moves with the supporting block. An extension opening is provided on the surface of the supporting block, and the detection head is inserted into the extension opening, and the detection head can move in the extension opening, and the detection head contacts the surface of the round tube through the extension opening.

[0015] Preferably, a spring is provided in the slide groove, one end of the spring is connected to the surface of the sliding plate, and the other end is connected to the inner wall of the slide groove, and the slide groove exerts a pulling force on the sliding plate, so that the sliding plate is located at one end of the slide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The supporting blocks proposed in the present invention are provided with multiple groups, and the arc shape of the surface of each supporting block is different, which is adapted to the arc of different round tubes. When the round tube passes through one side of the supporting block, the second piston rod is pulled by the second cylinder, so that the second piston rod is retracted into the interior of the second cylinder, and the second piston rod drives the U-shaped rod to move. One end of the U-shaped rod is inserted into the interior of the extension block, so that the supporting block at the other end of the U-shaped rod moves with the U-shaped rod, and the supporting block is close to the surface of the round tube, so that the surface of the supporting block is supported on the surface of the round tube, and the end of the U-shaped rod passes through the first roller The moving ball is connected to the supporting block, so that the supporting block can swing slightly to adapt to the surface of the round tube, and the end of the telescopic rod is connected to the plug-in board through the second rolling ball, so that the plug-in board can swing slightly, so that the plug-in board swings slightly with the supporting block. When the plug-in board is in the plug-in slot, the detection head is in the extension port, and the detection head contacts the surface of the round tube. At this time, since the surface of the supporting block is completely in contact with the surface of the round tube, the detection head can be well held on the surface of the round tube, and the coating of the round tube can be inspected, and the detection process can be kept smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 Schematic diagram of the support structure of the present invention.

[0020] Figure 4 for Figure 2 A magnified schematic diagram of the structure in the middle.

[0021] Figure 5 It is a schematic diagram of a partially enlarged structure of the bracket of the present invention.

[0022] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0023] Figure 7 This is a structural diagram of the bracket from another perspective with a partial enlargement.

[0024] Figure 8 It is a schematic diagram of the supporting block structure of the present invention.

[0025] Figure 9 for Figure 7 Enlarged schematic diagram of the structure at point C in the middle.

[0026] Figure 10 Schematic diagram of the inner panel structure of the present invention.

[0027] In the figure: support rod 1, base 2, bracket 3, rolling shaft 4, round tube 5, first cylinder 6, limit frame 7, slider 8, first piston rod 9, sliding plate 10, slide groove 11, slot 12, limit ring 13, first rolling ball 14, plug-in groove 15, extension block 17, second cylinder 18, U-shaped rod 19, second piston rod 20, L-shaped rod 21, spring 22, holding block 23, extension port 24, rubber pad 25, detection head 26, plug-in plate 27, detector 28, detection rod 29, telescopic rod 30, rubber strip 31, storage groove 32, embedded plate 33, second rolling ball 34. DETAILED DESCRIPTION

[0028] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 10 , the present invention provides a technical solution: Example 1: A round pipe alloy cladding coating thickness detection device, comprising: a support rod 1, the surface of the support rod 1 is fixed with a base 2 and a support 3, the surface of the support 3 is provided with a rolling shaft 4, the surface of the support 3 is provided with a sliding groove 11, the sliding groove 11 is provided with a sliding plate 10, the surface of the sliding plate 10 is fixed with an extension block 17, the surface of the extension block 17 is inserted with a U-shaped rod 19, the end of the U-shaped rod 19 is provided with a first rolling ball 14, the surface of the first rolling ball 14 is provided with a supporting block 23, the surface of the supporting block 23 is provided with an insertion slot 15, the surface of the extension block 17 is fixed with a second air cylinder 18, the end of the second air cylinder 18 is provided with a second piston rod 20, when the round pipe 5 passes from one side of the supporting block 23, the second piston rod 20 is pulled by the second air cylinder 18, so that the second piston rod 20 is retracted into the inside of the second air cylinder 18, the second piston rod 20 drives the U-shaped rod 19 to move, one end of the U-shaped rod 19 is inserted into the inside of the extension block 17, so that the supporting block 23 at the other end of the U-shaped rod 19 moves with the U-shaped rod 19.

[0030] Example 2: Based on example 1, the surface of the support 3 is provided with a plurality of groups of rolling shafts 4, the rolling shafts 4 can roll on the surface of the support 3, the top of the support 3 is placed with a round pipe 5, the round pipe 5 is supported on the surface of the rolling shaft 4, the rolling shaft 4 can drive the round pipe 5 to move on the top of the support 3 after rolling, the surface of the support 3 is fixed with a first air cylinder 6, the end of the first air cylinder 6 is provided with a first piston rod 9, the first air cylinder 6 can drive the first piston rod 9 to move, the other end of the first piston rod 9 is fixed with a sliding block 8, the sliding block 8 moves with the first piston rod 9, the surface of the support 3 is fixed with two groups of limiting frames 7, the limiting frames 7 are inserted into the inside of the sliding block 8, the sliding block 8 can move outside the limiting frames 7, the cross section of the limiting frame 7 is T-shaped, the first piston rod 9 drives the sliding block 8 to move, the sliding block 8 moves outside the limiting frame 7, the limiting frame 7 plays a limiting role, the sliding block 8 drives the detector 28 to move through the L-shaped rod 21. The sliding plate 10 can move in the sliding groove 11, the surface of the sliding plate 10 is fixed with a plurality of groups of extension blocks 17, the extension blocks 17 move with the sliding plate 10, the inside of the sliding groove 11 is fixed with an embedded plate 33, the embedded plate 33 is provided with a plurality of groups, which are located on both sides of the sliding groove 11, the surface of the embedded plate 33 is provided with a receiving groove 32, one end of the receiving groove 32 is connected with a rubber strip 31, the rubber strip 31 is in a raised state, and the rubber strip 31 can be retracted into the inside of the receiving groove 32 after swinging along one end, the sliding groove 11 is provided with a spring 22, one end of the spring 22 is connected with the surface of the sliding plate 10, the other end is connected with the inner wall of the sliding groove 11, the sliding groove 11 has a pulling force on the sliding plate 10, so that the sliding plate 10 is located at one end of the sliding groove 11.

[0031] The surface of the extension block 17 is inserted with the U-shaped rod 19, the U-shaped rod 19 can move inside the extension block 17, the surface of the extension block 17 is fixedly connected with the second cylinder 18, the end of the second cylinder 18 is provided with the second piston rod 20, the second cylinder 18 can drive the second piston rod 20 to move in and out, the other end of the second piston rod 20 is connected with the surface of the U-shaped rod 19, the U-shaped rod 19 moves along with the second piston rod 20, the end of the U-shaped rod 19 moves inside the extension block 17 along with the second piston rod 20, the other end of the U-shaped rod 19 is fixedly connected with the first rolling ball 14, the other end of the first rolling ball 14 is located inside the top-holding block 23, the first rolling ball 14 can swing inside the top-holding block 23, the surface of the first rolling ball 14 is fixedly connected with the limiting ring 13, the limiting ring 13 swings along with the first rolling ball 14, the limiting ring 13 can be supported on the surface of the top-holding block 23 when the first rolling ball 14 swings, the top-holding block 23 moves along with the U-shaped rod 19, the top-holding block 23 is provided with a plurality of groups, the arc surface of each group of the top-holding block 23 is inconsistent, the surface of the top-holding block 23 is provided with the slot 12 and the insertion slot 15, the surface of the sliding block 8 is fixedly connected with the L-shaped rod 21, the L-shaped rod 21 moves along with the sliding block 8, the other end of the L-shaped rod 21 is fixedly connected with the detector 28, the detector 28 moves along with the L-shaped rod 21, the surface of the detector 28 is provided with the detection rod 29, the end of the detection rod 29 is inserted with the telescopic rod 30, the telescopic rod 30 can move in and out inside the detection rod 29, the inside of the detection rod 29 is provided with the spring, the spring is connected with the inside of the detection rod 29 and the end of the telescopic rod 30, the end of the telescopic rod 30 is provided with the insertion plate 27, the insertion plate 27 moves along with the telescopic rod 30, the insertion plate 27 can be inserted into the insertion slot 15, and the telescopic rod 30 is inserted into the slot 12, the telescopic rod 30 can move in the slot 12, the end of the telescopic rod 30 is fixedly connected with the second rolling ball 34, the other end of the second rolling ball 34 is located inside the insertion plate 27, the second rolling ball 34 can swing inside the insertion plate 27, the surface of the insertion plate 27 is inserted with the detection head 26, the detection head 26 can move in and out inside the insertion plate 27, the inside of the insertion plate 27 is provided with the second spring, the second spring is connected with the detection head 26 and the inside of the insertion plate 27, the second spring has a pushing force on the detection head 26, so that the detection head 26 extends outside the insertion plate 27, and when the top-holding block 23 is supported on the surface of the circular pipe 5, the end of the detection head 26 is supported on the surface of the circular pipe 5 to detect the coating thickness of the circular pipe 5, the arc side surface of the top-holding block 23 is fixedly connected with the rubber pad 25, the rubber pad 25 moves along with the top-holding block 23, the surface of the top-holding block 23 is provided with the outlet 24, the detection head 26 is inserted into the outlet 24 and can move in the outlet 24, the detection head 26 contacts with the surface of the circular pipe 5 through the outlet 24, the end of the telescopic rod 30 is connected with the insertion plate 27 through the second rolling ball 34, so that the insertion plate 27 can swing slightly, and the insertion plate 27 swings slightly along with the top-holding block 23,When the plug-in plate 27 is located in the plug-in slot 15, the detection head 26 is located in the extension outlet 24, and the detection head 26 is in contact with the surface of the circular tube 5, at this time, because the surface of the top holding block 23 is completely fitted with the surface of the circular tube 5, the detection head 26 can be well supported on the surface of the circular tube 5.

[0032] The circular tube 5 is located at the top of the support 3, and the circular tube 5 is moved by the rotation of the rolling shaft 4, and the first piston rod 9 is driven by the first cylinder 6 to move, the first piston rod 9 drives the sliding block 8 to move, the sliding block 8 moves outside the limiting frame 7, the limiting frame 7 plays a limiting role, the sliding block 8 drives the detector 28 to move through the L-shaped rod 21, the detection rod 29 at the end of the detector 28 is plugged with the telescopic rod 30, the other end of the telescopic rod 30 is provided with the plug-in plate 27, the surface of the plug-in plate 27 is provided with the detection head 26, the detection head 26 can detect the coating thickness, the plug-in plate 27 is plugged into the plug-in slot 15 on the surface of the top holding block 23, and the telescopic rod 30 is plugged into the slot 12, the telescopic rod 30 can move from the slot 12, the top holding block 23 is provided with a plurality of groups, the arc surface of each group of top holding blocks 23 is different, and is suitable for different arc of the circular tube 5, when the circular tube 5 passes from one side of the top holding block 23, the second piston rod 20 is pulled by the second cylinder 18, so that the second piston rod 20 is retracted into the inside of the second cylinder 18, the second piston rod 20 drives the U-shaped rod 19 to move, one end of the U-shaped rod 19 is plugged into the inside of the extension block 17, so that the other end of the top holding block 23 of the U-shaped rod 19 moves with the U-shaped rod 19, the top holding block 23 is close to the surface of the circular tube 5, so that the surface of the top holding block 23 is supported on the surface of the circular tube 5, the end of the U-shaped rod 19 is connected with the top holding block 23 through the first rolling ball 14, so that the top holding block 23 can slightly swing, adapt to the surface of the circular tube 5, and the end of the telescopic rod 30 is connected with the plug-in plate 27 through the second rolling ball 34, so that the plug-in plate 27 can slightly swing, so that the plug-in plate 27 slightly swings with the top holding block 23, when the plug-in plate 27 is located in the plug-in slot 15, the detection head 26 is located in the extension outlet 24, and the detection head 26 is in contact with the surface of the circular tube 5, at this time, because the surface of the top holding block 23 is completely fitted with the surface of the circular tube 5, the detection head 26 can be well supported on the surface of the circular tube 5, the coating of the circular tube 5 is detected, and the detection process can be kept stable.

[0033] Although the above describes the specific embodiments of the present application in order to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, all application creations using the concept of the present application are within the scope of the present application.

Claims

1. A coating thickness detection device for round tube alloy deposition, characterized by: include: A support rod (1) is provided on the surface of the support rod (1), a base (2) and a bracket (3) are fixed on the surface of the support rod (1), a rolling shaft (4) is provided on the surface of the bracket (3), a sliding groove (11) is provided on the surface of the bracket (3), a sliding plate (10) is provided in the sliding groove (11), an extension block (17) is fixed on the surface of the sliding plate (10), a U-shaped rod (19) is plugged into the surface of the extension block (17), a first rolling ball (14) is provided at the end of the U-shaped rod (19), a top holding block (23) is provided on the surface of the first rolling ball (14), a plugging groove (15) is provided on the surface of the top holding block (23), a second cylinder (18) is fixed on the surface of the extension block (17), and a second piston rod (20) is provided at the end of the second cylinder (18).

2. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 1, characterized in that: The surface of the bracket (3) is provided with multiple groups of rolling shafts (4), and the rolling shafts (4) can roll on the surface of the bracket (3). A round tube (5) is placed on the top of the bracket (3), and the round tube (5) is supported on the surface of the rolling shaft (4). After the rolling shaft (4) rolls, it can drive the round tube (5) to move on the top of the bracket (3). A first cylinder (6) is fixed on the surface of the bracket (3), and a first piston rod (9) is provided at the end of the first cylinder (6). The first cylinder (6) can drive the first piston rod (9) to move. A slider (8) is fixed to the other end of the first piston rod (9), and the slider (8) moves with the first piston rod (9). Two groups of limit frames (7) are fixed on the surface of the bracket (3), and the limit frames (7) are inserted into the inside of the slider (8). The slider (8) can move outside the limit frame (7). The cross section of the limit frame (7) is T-shaped.

3. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 2, characterized in that: The sliding plate (10) can move in the slide groove (11). A plurality of extension blocks (17) are fixed on the surface of the sliding plate (10). The extension blocks (17) move along with the sliding plate (10). An inner panel (33) is fixed inside the slide groove (11). The inner panel (33) is provided with a plurality of groups and is located on both sides of the slide groove (11). A receiving groove (32) is provided on the surface of the inner panel (33). One end of the receiving groove (32) is connected to a rubber strip (31). The rubber strip (31) is in a tilted state, and the rubber strip (31) can be stored in the interior of the receiving groove (32) after swinging along one end.

4. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 3, characterized in that: A U-shaped rod (19) is inserted into the surface of the extension block (17), and the U-shaped rod (19) can move inside the extension block (17). A second cylinder (18) is fixed to the surface of the extension block (17), and a second piston rod (20) is provided at the end of the second cylinder (18). The second cylinder (18) can drive the second piston rod (20) to move telescopically. The other end of the second piston rod (20) is connected to the surface of the U-shaped rod (19), and the U-shaped rod (19) moves with the second piston rod (20). The end of the U-shaped rod (19) moves inside the extension block (17) with the second piston rod (20).

5. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 4, characterized in that: A first rolling ball (14) is fixed to the other end of the U-shaped rod (19), and the other end of the first rolling ball (14) is located inside the supporting block (23). The first rolling ball (14) can swing inside the supporting block (23). A limiting ring (13) is fixed to the surface of the first rolling ball (14), and the limiting ring (13) swings along with the first rolling ball (14). When the first rolling ball (14) swings, the limiting ring (13) can be supported on the surface of the supporting block (23). The supporting block (23) moves along with the U-shaped rod (19). There are multiple groups of supporting blocks (23), and the surface arc shape of each group of supporting blocks (23) is inconsistent.

6. The device for detecting the thickness of a coating for alloy deposition on a round tube according to claim 5, characterized in that: The surface of the top holding block (23) is provided with a slot (12) and a plug-in slot (15); an L-shaped rod (21) is fixed to the surface of the slider (8); the L-shaped rod (21) moves along with the slider (8); a detector (28) is fixed to the other end of the L-shaped rod (21); the detector (28) moves along with the L-shaped rod (21); a detection rod (29) is provided on the surface of the detector (28); a telescopic rod (30) is plugged into the end of the detection rod (29); the telescopic rod (30) can telescope and move inside the detection rod (29); a spring is provided inside the detection rod (29); the spring connects the inside of the detection rod (29) and the end of the telescopic rod (30).

7. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 6, characterized in that: The end of the telescopic rod (30) is provided with a plug-in plate (27), the plug-in plate (27) moves along with the telescopic rod (30), the plug-in plate (27) can be plugged into the plug-in slot (15), and the telescopic rod (30) is plugged into the slot (12), the telescopic rod (30) can move in the slot (12), and a second rolling ball (34) is fixed to the end of the telescopic rod (30), the other end of the second rolling ball (34) is located inside the plug-in plate (27), and the second rolling ball (34) can swing inside the plug-in plate (27).

8. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 7, characterized in that: The surface of the plug board (27) is plugged with a detection head (26), and the detection head (26) can be telescopically moved inside the plug board (27). A second spring is provided inside the plug board (27), and the second spring connects the detection head (26) and the inside of the plug board (27). The second spring has a thrust on the detection head (26), so that the detection head (26) extends out of the plug board (27), and when the supporting block (23) is supported on the surface of the round tube (5), the end of the detection head (26) is supported on the surface of the round tube (5), and the coating thickness of the round tube (5) is detected.

9. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 8, characterized in that: A rubber pad (25) is fixed to one side surface of the arc-shaped supporting block (23), and the rubber pad (25) moves along with the supporting block (23). A protruding opening (24) is provided on the surface of the supporting block (23), and the detection head (26) is inserted into the protruding opening (24). The detection head (26) can move in the protruding opening (24), and the detection head (26) contacts the surface of the circular tube (5) through the protruding opening (24).

10. The device for detecting the thickness of a coating for a round tube alloy deposition according to claim 9, characterized in that: A spring (22) is provided in the slide groove (11), one end of the spring (22) is connected to the surface of the sliding plate (10), and the other end is connected to the inner wall of the slide groove (11). The slide groove (11) exerts a pulling force on the sliding plate (10), so that the sliding plate (10) is located at one end of the slide groove (11).

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