Auxiliary preparation device for wear-resistant coating on surface of titanium alloy

Abstract

The invention discloses an auxiliary preparation device for a titanium alloy surface wear-resistant coating, and belongs to the technical field of titanium alloy plate wear-resistant coatings. Comprising a mounting bottom plate, supporting plates are symmetrically arranged on the mounting bottom plate, one end of each supporting plate is slidably connected to the mounting bottom plate, a sand blasting barrel is arranged at the other end of each supporting plate, the two ends of each sand blasting barrel are connected to the other end of the corresponding supporting plate, polished rods are symmetrically arranged in the sand blasting barrels, and the polished rods are located on the lower portions of the sand blasting barrels. The two ends of the polish rod penetrate out of the outer sides of the two ends of the sand blasting cylinder correspondingly, first fixing plates are arranged at the two ends of the polish rod, the polish rod is connected to the mounting bottom plate through the first fixing plates, an end plate and a sliding plate are arranged at the two ends of the sand blasting cylinder correspondingly, and the end plate and the sliding plate are both slidably connected to the polish rod. The diameter of the end plate is larger than the outer diameter of the sand blasting cylinder. According to the technical scheme, the problem that in the prior art, when a wear-resistant coating is prepared on the surface of a titanium alloy plate, a traditional sand blasting grinding mode has defects is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of wear-resistant coatings on titanium alloy plates, and in particular relates to an auxiliary preparation device for wear-resistant coatings on the surfaces of titanium alloys. Background Art

[0002] With the continuous deepening of oil and gas field exploration and development, the oil and gas development environment has become more demanding. High temperature, high pressure, and high hydrogen sulfide, carbon dioxide, and chlorine content in the environment have put forward more stringent requirements on the material of oil well pipes. Titanium alloys can still maintain high strength at high temperatures. In addition, titanium alloys have corrosion resistance and fatigue resistance, which makes them gain attention and application in oil and gas well development.

[0003] The main surface damage of titanium alloy pipes is friction wear and corrosion wear. In order to reduce the damage caused by the use of titanium alloy pipes, the wear resistance of the surface of titanium alloy pipes is studied. A common way to enhance wear resistance is to prepare a wear-resistant coating on the surface of titanium alloy; for example, Ni60 nickel-based alloy has good comprehensive performance and high cost performance, and has good wear resistance and corrosion resistance. Therefore, it is a common laser cladding material for preparing wear-resistant coatings. The specific steps for preparing the wear-resistant layer are as follows: 1) pre-treating the titanium alloy substrate by sandblasting and polishing, and ultrasonically cleaning to remove the oxide film and other impurities on the surface; 2) mixing Ni60 powder, Ti powder, Cu powder, B4C powder, WC powder and CeO2 powder according to the cladding requirements; 3) using different process paths and different preheating temperatures to prepare a cladding coating on the surface of the titanium alloy substrate with a laser power of 1.2 to 1.8 kW, a scanning speed of 3 to 8 mm / s, a powder feeding speed of 20 to 100 g / min, a circular spot with a diameter of 2 mm to 6 mm, and a synchronous powder feeding process under an argon protection environment of 6 to 10 L / min.

[0004] Therefore, in the process of preparing a wear-resistant coating on the surface of titanium alloy, the first step is to sandblast and polish the surface of the titanium alloy plate after cutting to improve the subsequent cladding effect. In the prior art, when sandblasting and polishing, a sandblasting tube is usually used to directly perform sandblasting and polishing operations on the titanium alloy plate placed indoors. This method not only generates a large amount of dust to pollute the working environment, but also causes the spray material after sandblasting to be scattered everywhere, making it difficult to collect later. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide an auxiliary preparation device for wear-resistant coating on the surface of titanium alloy, so as to solve the problem that the traditional sandblasting and grinding method is insufficient when preparing wear-resistant coating on the surface of titanium alloy plate in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention discloses an auxiliary preparation device for wear-resistant coating on the surface of titanium alloy, comprising a mounting base plate, wherein a support plate is symmetrically arranged on the mounting base plate, one end of the support plate is slidably connected to the mounting base plate, a sandblasting tube is arranged on the other end of the support plate, and both ends of the sandblasting tube are connected to the other end of the support plate, a polished rod is symmetrically arranged in the sandblasting tube, the polished rod is located at the lower part of the sandblasting tube, and both ends of the polished rod respectively pass through the outer sides of both ends of the sandblasting tube, a first fixing plate is arranged on both ends of the polished rod, and the first fixing plate connects the polished rod to the mounting base plate, and end plates and sliding plates are respectively arranged on both ends of the sandblasting tube, and the end plates and sliding plates are both slidably connected to the polished rod, the diameter of the end plates is larger than the outer diameter of the sandblasting tube, and the sliding plate The diameter matches the inner diameter of the sandblasting cylinder, connecting springs are provided on the two side surfaces of the end plate and the sliding plate that are opposite to each other, the two ends of the connecting spring are respectively fixedly connected to the end plate and the sliding plate, and the connecting spring is sleeved on the light rod, a feeding rod is provided at the lower part of the sliding plate, one end of the feeding rod passes through the sliding plate and is located inside the sandblasting cylinder, a second fixed plate is provided at the other end of the feeding rod, and the second fixed plate connects the feeding rod to the mounting base plate, a titanium alloy clamping assembly is provided on the end of the feeding rod located in the sandblasting cylinder, a conveying pipe is provided above the feeding rod, one end of the conveying pipe passes through the sliding plate and is universally connected to the sliding plate, a sandblasting pipe is provided on the other end of the conveying pipe, and the sandblasting pipe is connected to the conveying pipe.

[0008] Furthermore, the end of the sandblasting cylinder is rotatably connected to the support plate, a gear ring is provided on one end of the sandblasting cylinder close to the sliding plate, a driving motor is provided on the support plate close to the gear ring, a driving gear is provided on the output end of the driving motor, the driving gear is fixed to the output end of the driving motor, the driving gear is meshed with the gear ring, a plurality of permanent magnets are evenly distributed circumferentially on the outer surface of the sandblasting cylinder located between the two support plates, the permanent magnets are fixed on the outer surface of the sandblasting cylinder, an avoidance notch is provided at the lower end of the sliding plate, and the spray material input into the sandblasting tube is iron sand.

[0009] Furthermore, a right-angle scraper is provided on the avoidance gap of the sliding plate, one end of the right-angle scraper is fixed on the sliding plate, and the other end of the right-angle scraper is arranged near the end of the sandblasting cylinder, the edge of the right-angle scraper is in sliding contact with the inner wall of the sandblasting cylinder, and a spray material collection box and an impurity collection box are provided on the support plate, the spray material collection box is arranged under the slide plate, and the impurity collection box is arranged between the sliding plate and the second fixed plate, and a blank area not covered by the permanent magnet is provided on the surface of the sandblasting cylinder.

[0010] Furthermore, slides are symmetrically arranged in the length direction of the installation base plate, the end of the support plate is fixedly connected to the slide block, and the spray material collection box and the impurity collection box are arranged between the two slides.

[0011] Furthermore, a Y-type valve is provided on the connecting portion of the delivery pipe and the sandblasting pipe, one input end of the Y-type valve is connected to the sandblasting pipe, an air supply pipe is provided on the other input end of the Y-type valve, an output end of the Y-type valve is connected to the end of the delivery pipe, an operating rod is also provided on the outer surface of the Y-type valve, one end of the operating rod is fixed on the Y-type valve, and the other end of the operating rod extends to the outside of the mounting base plate.

[0012] Furthermore, the sliding plate is made of transparent material.

[0013] Furthermore, the titanium alloy clamping assembly includes a bonding plate, one end of which is fixed to the feed rod, and a slide groove is provided on the bonding plate. A connecting plate is symmetrically provided inside the slide groove, and the connecting plate is slidably connected to the slide groove. A clamp is provided at one end of the connecting plate, and a screw is provided on the other end of the connecting plate. The screw is rotatably connected to the connecting plate, and a retaining ring is provided at the end of the screw. A mounting seat is provided at the edge of the bonding plate, and the screw is threadedly connected to the mounting seat. An adjusting nut is provided on the screw between the connecting plate and the mounting seat, and the adjusting nut is threadedly connected to the screw. A clamping spring is provided between the adjusting nut and the connecting plate, and the clamping spring is sleeved on the screw.

[0014] Furthermore, a support plate is provided on the downward end of the clamping plate, one end of the support plate is vertically fixed to the end of the clamping plate, and the other end of the support plate is arranged to point to the middle of the bonding plate.

[0015] Furthermore, a push rod is provided on the side of the laminating plate where the screw is arranged, and the push rod is fixed to the laminating plate, and the height of the push rod is greater than the installation height of the screw.

[0016] Furthermore, a universal joint is provided at the connection portion between the conveying pipe and the sliding plate, and an inner stopper and an outer stopper are respectively provided at both sides of the connection portion between the feeding stem and the sliding plate, and the inner stopper and the outer stopper are both threadedly connected to the feeding rod.

[0017] The beneficial effects of the present invention are:

[0018] (1) In this technical solution, when sandblasting the titanium alloy plate, the sandblasting environment is relatively closed, which can reduce the dust generation in the operating environment and reduce the impact on the staff. At the same time, the blasting material after sandblasting is collected in the sandblasting tube, which is convenient for the collection and reuse of the blasting material in the later stage;

[0019] (2) In the present technical solution, by providing components such as permanent magnets, the blasting material after sandblasting and the impurities that fall off during sandblasting can be separated, thereby further improving the reuse effect of subsequent blasting materials.

[0020] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0022] Figure 1 It is a three-dimensional schematic diagram of the auxiliary preparation device of the present invention;

[0023] Figure 2 A three-dimensional schematic diagram of the auxiliary preparation device of the present invention from another perspective;

[0024] Figure 3 It is a schematic diagram of an internal cross-sectional view of the auxiliary preparation device of the present invention;

[0025] Figure 4 It is a schematic internal stereoscopic diagram of the auxiliary preparation device of the present invention;

[0026] Figure 5 is a three-dimensional schematic diagram of the clamping assembly of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the clamping assembly of the present invention from another viewing angle.

[0028] The following are marked in the accompanying drawings:

[0029] 1. Mounting base plate; 2. Slide; 3. Support plate; 4. Sandblasting cylinder; 5. Permanent magnet; 6. Gear ring; 7. Driving gear; 8. Driving motor; 9. First fixed plate; 10. Light rod; 11. End plate; 12. Sliding plate; 13. Connecting spring; 14. Right-angle scraper; 15. Feed rod; 16. Second fixed plate; 17. Outer block; 18. Inner block; 19. Universal joint; 20. Delivery pipe; 21. Y-type valve; 22. Sandblasting pipe; 23. Air supply pipe; 24. Operating lever; 25. Laminating plate; 26. Slide; 27. Clamp; 28. Connecting plate; 29. ​​Mounting seat; 30. Screw; 31. Retaining ring; 32. Adjusting nut; 33. Tightening spring; 34. Spray collection box; 35. Impurity collection box; 36. Titanium alloy plate. DETAILED DESCRIPTION

[0030] like Figure 1 to Figure 6As shown, an auxiliary preparation device for wear-resistant coating on the surface of titanium alloy of the present invention comprises a mounting base plate 1, a support plate 3 is symmetrically arranged on the mounting base plate 1, one end of the support plate 3 is slidably connected to the mounting base plate 1, a sandblasting tube 4 is arranged on the other end of the support plate 3, both ends of the sandblasting tube 4 are connected to the other end of the support plate 3, a polished rod 10 is symmetrically arranged in the sandblasting tube 4, the polished rod 10 is located at the lower part of the sandblasting tube 4, both ends of the polished rod 10 respectively pass through the outer sides of both ends of the sandblasting tube 4, a first fixing plate 9 is arranged on both ends of the polished rod 10, the first fixing plate 9 connects the polished rod 10 to the mounting base plate 1, an end plate 11 and a sliding plate 12 are respectively arranged at both ends of the sandblasting tube 4, the end plate 11 and the sliding plate 12 are both slidably connected to the polished rod 10, the diameter of the end plate 11 is larger than the outer diameter of the sandblasting tube 4, and the diameter of the sliding plate 12 is the same as the outer diameter of the sandblasting tube 4 The inner diameter of the end plate 11 and the sliding plate 12 are matched, and connecting springs 13 are provided on the two side surfaces opposite to each other. The two ends of the connecting spring 13 are respectively fixedly connected to the end plate 11 and the sliding plate 12, and the connecting spring 13 is sleeved on the light rod 10. A feeding rod 15 is provided at the lower part of the sliding plate 12. One end of the feeding rod 15 passes through the sliding plate 12 and is located inside the sandblasting tube 4. A second fixed plate 16 is provided at the other end of the feeding rod 15. The second fixed plate 16 connects the feeding rod 15 to the mounting base plate 1. A titanium alloy clamping assembly is provided on one end of the feeding rod 15 located in the sandblasting tube 4. A conveying pipe 20 is provided above the feeding rod 15. One end of the conveying pipe 20 passes through the sliding plate 12 and is universally connected to the sliding plate 12. A sandblasting pipe 22 is provided on the other end of the conveying pipe 20, and the sandblasting pipe 22 is connected to the conveying pipe 20.

[0031] The working principle of the above technical solution is:

[0032] First, slide the support plate 3 toward the direction of the end plate 11 to expose the clamping assembly to the outside of the sandblasting cylinder 4, then fix the titanium alloy plate 36 thereon, and then reset the sandblasting cylinder 4. Due to the setting of the connecting spring 13 and the unchanged position of the sliding plate 12, after the sandblasting cylinder 4 is reset, the end plate 11 always closes the end of the sandblasting cylinder 4. Then, start the sandblasting tube 22, and perform sandblasting on the surface of the titanium alloy plate 36 through the conveying tube 20. After the sandblasting operation is completed, the sandblasting cylinder 4 can be slid to remove the sandblasted titanium alloy plate 36.

[0033] After a long period of operation, the device can slide the sandblasting tube 4 toward one side of the sliding plate 12, and then the sliding plate 12 slides on the inner wall of the sandblasting tube 4, so that the blasting material and impurities accumulated in the sandblasting tube 4 can be pushed to the other end of the sandblasting tube 4 for discharge, that is, one end where the end cover is set.

[0034] When the titanium alloy plate 36 is sandblasted and polished by the technical solution, the sandblasting environment is relatively closed, which can reduce the dust generation in the operating environment and reduce the impact on the staff. At the same time, the blasting material after sandblasting is collected in the sandblasting tube 4, which is convenient for the later collection and reuse of the blasting material. At the same time, in the technical solution, the sliding plate 12 is pushed to move by the sliding of the sandblasting tube 4 instead of the feeding rod 15. This setting method can reduce the volume of the device.

[0035] In one practicable manner, the end of the sandblasting cylinder 4 is rotatably connected to the support plate 3 and connected through a rotating bearing. A gear ring 6 is provided on one end of the sandblasting cylinder 4 close to the sliding plate 12, and a driving motor 8 is provided on the support plate 3 close to the gear ring 6. A driving gear 7 is provided on the output end of the driving motor 8, and the driving gear 7 is fixed on the output end of the driving motor 8. The driving gear 7 is meshed with the gear ring 6. A plurality of permanent magnets 5 are evenly distributed circumferentially on the outer surface of the sandblasting cylinder 4 located between the two support plates 3, and the permanent magnets 5 are fixed on the outer surface of the sandblasting cylinder 4. An avoidance notch is provided at the lower end of the sliding plate 12, and the spray material input into the sandblasting tube 22 is iron sand.

[0036] The working principle of the above technical solution is:

[0037] When it is necessary to collect and discharge the spray material in the sandblasting tube 4, first control the driving motor 8 to rotate, thereby driving the sandblasting tube 4 to rotate. Since the outer surface of the sandblasting tube 4 is provided with a permanent magnet 5, when the sandblasting tube 4 rotates, some spray materials (iron sand) will be adsorbed on the inner wall of the sandblasting tube 4. Since the residues or other impurities falling from the titanium alloy plate 36 during sandblasting cannot be adsorbed, they will be deposited at the bottom of the sandblasting tube 4. Therefore, when the sliding sandblasting tube 4 is discharged, the sliding plate 12 will adhere to the inside of the sandblasting tube 4. The iron sand on the wall is pushed out. It should be noted that when the sliding plate 12 is pushed, the sandblasting tube 4 does not rotate. After the sliding plate 12 is reset, the sandblasting tube 4 rotates 90° again, and then the sliding plate 12 is pushed once more to discharge all the iron sand adhered to the inner wall. This working method is to avoid the problem of pushing the iron sand adhered to the lower part of the sandblasting tube 4 to the other end when the sliding plate 12 is reset, and the non-adherent impurities are always located at the bottom of the sandblasting tube 4. Due to the setting of the avoidance gap, they will not be pushed out, which is convenient for subsequent separate treatment.

[0038] In one feasible manner, a right-angle scraper 14 is provided on the avoidance gap of the sliding plate 12, one end of the right-angle scraper 14 is fixed on the sliding plate 12, and the other end of the right-angle scraper 14 is arranged near the end of the sandblasting tube 4, and the edge of the right-angle scraper 14 is in sliding contact with the inner wall of the sandblasting tube 4, and a spray material collection box 34 and an impurity collection box 35 are provided on the support plate 3, the spray material collection box 34 is arranged under the slide plate, and the impurity collection box 35 is arranged between the sliding plate 12 and the second fixed plate 16, and a blank area not covered by the permanent magnet 5 is provided on the surface of the sandblasting tube 4.

[0039] The setting of the right-angle scraper 14 can seal the sandblasting space to avoid the problem of spraying material and dust overflow. At the same time, the setting of the right-angle scraper 14 is that there is a certain distance between the contact end surface with the lower inner wall of the sandblasting tube 4 and the sliding plate 12, that is, after the sliding plate 12 pushes out the iron sand on the inner wall of the sandblasting tube 4, the sandblasting tube 4 still needs to move a certain distance to push out the impurities at the bottom, thereby realizing the intermittent discharge of iron sand and impurities, further improving the separation effect of impurities and iron sand. It is not difficult to understand that, with the full coverage of the permanent magnet, a small amount of iron sand adhering to the inner wall at the bottom of the sandblasting tube 4 will be pushed into the impurity collection box 35 by the right-angle scraper 14 along with the impurities, thereby achieving the separation of most of the iron sand and impurities. In order to further improve the separation effect, a partial blank area can be left on the outer surface of the sandblasting tube 4 without the permanent magnet 5, that is, this part will not absorb iron sand, and when the discharge operation is performed, this part is rotated to the bottom and contacts with the right-angle scraper 14, that is, this part only has impurities and no adhering iron sand, thereby improving the separation effect of iron sand and impurities.

[0040] In one feasible method, slides 2 are symmetrically provided in the length direction of the mounting base plate 1, the ends of the support plates 3 are fixedly connected to the slides, and the spray collection box 34 and the impurity collection box 35 are arranged between the two slides 2. The positions of the spray collection box 34 and the impurity collection box 35 can be placed according to actual conditions, and no further elaboration will be made here.

[0041] In one feasible manner, a Y-type valve 21 is provided at a connecting portion of the delivery pipe 20 with the sandblasting pipe 22, one input end of the Y-type valve 21 is connected to the sandblasting pipe 22, an air supply pipe 23 is provided at the other input end of the Y-type valve 21, an output end of the Y-type valve 21 (three-way valve) is connected to an end of the delivery pipe 20, an operating rod 24 is also provided on an outer surface of the Y-type valve 21, one end of the operating rod 24 is fixed to the Y-type valve 21, and the other end of the operating rod 24 extends to the outside of the mounting base plate 1.

[0042] The air supply pipe 23 is provided to input high-pressure gas into the titanium alloy plate 36 after the sandblasting and polishing is completed, so as to purge the surface of the titanium alloy plate 36 and remove the adhering impurities or iron sand, so as to facilitate the operation of the next process.

[0043] In one feasible manner, the sliding plate 12 is made of a transparent material, such as a plastic plate. The advantage of a transparent material is that an operator can control the end position of the conveying pipe 20 through an operating rod 24, and then cooperate with the transparent setting to allow the operator to see the internal situation, thereby further improving the sandblasting and polishing effect of the titanium alloy plate 36.

[0044] In one practicable manner, the titanium alloy clamping assembly includes a bonding plate 25, one end of which is fixed to the feed rod 15, and a slide groove 26 is provided on the bonding plate 25. A connecting plate 28 is symmetrically provided inside the slide groove 26, and the connecting plate 28 is slidably connected to the slide groove 26. A clamping plate 27 is provided at one end of the connecting plate 28, and a screw 30 is provided on the other end of the connecting plate 28. The screw 30 is rotatably connected to the connecting plate 28, and a retaining ring 31 is provided at the end of the screw 30. A mounting seat 29 is provided at the edge of the bonding plate 25, and the screw 30 is threadedly connected to the mounting seat 29. An adjusting nut 32 is provided on the screw 30 between the connecting plate 28 and the mounting seat 29, and the adjusting nut 32 is threadedly connected to the screw 30. A clamping spring 33 is provided between the adjusting nut 32 and the connecting plate 28, and the clamping spring 33 is sleeved on the screw 30.

[0045] The working principle of the above technical solution is:

[0046] When the sizes of the titanium alloy plates 36 are different, the screw rod 30 is rotated to drive the connecting plate 28 to move in the slide groove 26, thereby adjusting the distance between the two clamping plates 27, so as to clamp the titanium alloy plates 36 of different sizes. The setting of the adjusting nut 32 can change the compression degree of the clamping spring 33 by changing the position on the screw rod 30, that is, changing the "stiffness" of the spring, and then adjusting the clamping force of the titanium alloy plate 36, thereby ensuring that titanium alloy plates 36 of all sizes can be stably clamped by the clamping plates 27.

[0047] In one feasible manner, a support plate is provided on the downward end of the splint 27, one end of the support plate is vertically fixed to the end of the splint 27, and the other end of the support plate is arranged to point to the middle of the bonding plate 25. The support plate can support the titanium alloy plate 36 to further enhance the clamping effect.

[0048] In one feasible manner, a push rod is provided on the side of the screw rod 30 of the bonding plate 25, and the push rod is fixed on the bonding plate 25. The height of the push rod is greater than the installation height of the screw rod 30. The setting of the push rod prevents the components set on the bonding plate 25 from contacting with the end plate 11, causing collision damage.

[0049] In one feasible manner, a universal joint 19 is provided at the connection portion between the delivery pipe 20 and the sliding plate 12, and an inner stop block 18 and an outer stop block 17 are respectively provided on both sides of the connection portion between the feed stem and the sliding plate 12. The inner stop block 18 and the outer stop block 17 are both threadedly connected to the feed rod 15. The setting of the inner stop block 18 and the outer stop block 17 can realize the limiting operation of the sliding plate 12, and can also adjust the distance between the sliding plate 12 and the clamping assembly in this way, thereby changing the distance between the delivery pipe 20 and the clamping assembly, and then adjusting the distance during sandblasting, thereby achieving the purpose of changing the sandblasting pressure and sandblasting range.

[0050] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An auxiliary preparation device for wear-resistant coating on titanium alloy surface, characterized in that: The invention comprises a mounting base plate (1), a supporting plate (3) is symmetrically arranged on the mounting base plate (1), one end of the supporting plate (3) is slidably connected to the mounting base plate (1), a sandblasting tube (4) is arranged on the other end of the supporting plate (3), both ends of the sandblasting tube (4) are connected to the other end of the supporting plate (3), a polished rod (10) is symmetrically arranged in the sandblasting tube (4), the polished rod (10) is located at the lower part of the sandblasting tube (4), and both ends of the polished rod (10) respectively pass through both ends of the sandblasting tube (4). On the outside of the polished rod (10), first fixing plates (9) are provided at both ends of the polished rod (10), and the first fixing plates (9) connect the polished rod (10) to the mounting base plate (1). End plates (11) and sliding plates (12) are provided at both ends of the sandblasting tube (4), respectively. The end plates (11) and sliding plates (12) are both slidably connected to the polished rod (10). The diameter of the end plates (11) is larger than the outer diameter of the sandblasting tube (4), and the diameter of the sliding plates (12) matches the inner diameter of the sandblasting tube (4). A connecting spring (13) is provided on two side surfaces of the end plate (11) and the sliding plate (12) which are arranged opposite to each other, and the two ends of the connecting spring (13) are respectively fixedly connected to the end plate (11) and the sliding plate (12), and the connecting spring (13) is sleeved on the light rod (10), and a feeding rod (15) is provided at the lower part of the sliding plate (12), one end of the feeding rod (15) passes through the sliding plate (12) and is located inside the sandblasting cylinder (4), and the other end of the feeding rod (15) is provided with a second fixing plate (16) ), the second fixing plate (16) connects the feeding rod (15) to the mounting base plate (1), a titanium alloy clamping assembly is provided on one end of the feeding rod (15) located in the sandblasting tube (4), a delivery pipe (20) is provided above the feeding rod (15), one end of the delivery pipe (20) passes through the sliding plate (12) and is universally connected to the sliding plate (12), a sandblasting pipe (22) is provided on the other end of the delivery pipe (20), and the sandblasting pipe (22) is connected to the delivery pipe (20).

2. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 1, characterized in that: The end of the sandblasting tube (4) is rotatably connected to the support plate (3); a gear ring (6) is provided on one end of the sandblasting tube (4) disposed near the sliding plate (12); a driving motor (8) is provided on the support plate (3) disposed near the gear ring (6); a driving gear (7) is provided on the output end of the driving motor (8); the driving gear (7) is fixed to the output end of the driving motor (8); the driving gear (7) is meshed with the gear ring (6); a plurality of permanent magnets (5) are evenly distributed on the circumference of the outer surface of the sandblasting tube (4) located between the two support plates (3); the permanent magnets (5) are fixed to the outer surface of the sandblasting tube (4); an avoidance notch is provided at the lower end of the sliding plate (12); and the spray material input into the sandblasting tube (22) is iron sand.

3. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 2, characterized in that: A right-angle scraper (14) is provided on the avoidance notch of the sliding plate (12), one end of the right-angle scraper (14) is fixed on the sliding plate (12), and the other end of the right-angle scraper (14) is arranged close to the end of the sandblasting cylinder (4), and the edge of the right-angle scraper (14) is in sliding contact with the inner wall of the sandblasting cylinder (4), and a spray material collection box (34) and an impurity collection box (35) are provided on the support plate (3), the spray material collection box (34) is arranged below the slide plate, and the impurity collection box (35) is arranged between the sliding plate (12) and the second fixed plate (16), and a blank area not covered by the permanent magnet (5) is provided on the surface of the sandblasting cylinder (4).

4. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 3, characterized in that: The mounting base plate (1) is symmetrically provided with slides (2) in the length direction, the end of the support plate (3) is fixedly connected to the slide, and the spray material collection box (34) and the impurity collection box (35) are arranged between the two slides (2).

5. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 1, characterized in that: The delivery pipe (20) is provided with a Y-shaped valve (21) at a connection portion with the sandblasting pipe (22); one input end of the Y-shaped valve (21) is connected to the sandblasting pipe (22); the other input end of the Y-shaped valve (21) is provided with an air supply pipe (23); the output end of the Y-shaped valve (21) is connected to the end of the delivery pipe (20); an operating rod (24) is also provided on the outer surface of the Y-shaped valve (21); one end of the operating rod (24) is fixed to the Y-shaped valve (21); the other end of the operating rod (24) extends to the outside of the mounting base plate (1).

6. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 5, characterized in that: The sliding plate (12) is made of transparent material.

7. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 1, characterized in that: The titanium alloy clamping assembly comprises a bonding plate (25), one end of which is fixed to the feeding rod (15), a slide groove (26) is provided on the bonding plate (25), a connecting plate (28) is symmetrically provided inside the slide groove (26), the connecting plate (28) is slidably connected to the slide groove (26), a clamping plate (27) is provided at one end of the connecting plate (28), a screw rod (30) is provided at the other end of the connecting plate (28), the screw rod (30) is rotatably connected to the connecting plate (28), and the screw rod (30) is rotatably connected to the connecting plate (28). A retaining ring (31) is provided at the end of the (30), a mounting seat (29) is provided at the edge of the bonding plate (25), the screw rod (30) is threadedly connected to the mounting seat (29), an adjusting nut (32) is provided on the screw rod (30) between the connecting plate (28) and the mounting seat (29), the adjusting nut (32) is threadedly connected to the screw rod (30), a clamping spring (33) is provided between the adjusting nut (32) and the connecting plate (28), and the clamping spring (33) is sleeved on the screw rod (30).

8. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 7, characterized in that: A support plate is provided on the downward end of the clamping plate (27), one end of the support plate is vertically fixed to the end of the clamping plate (27), and the other end of the support plate is arranged to point to the middle of the bonding plate (25).

9. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 7, characterized in that: A push rod is provided on the side of the laminating plate (25) on which the screw rod (30) is arranged. The push rod is fixed on the laminating plate (25). The height of the push rod is greater than the installation height of the screw rod (30).

10. The auxiliary preparation device for wear-resistant coating on titanium alloy surface according to claim 1, characterized in that: A universal joint (19) is provided at the connection portion between the conveying pipe (20) and the sliding plate (12), and an inner stopper (18) and an outer stopper (17) are respectively provided on both sides of the connection portion between the feeding stem and the sliding plate (12), and the inner stopper (18) and the outer stopper (17) are both threadedly connected to the feeding rod (15).

Images