A surface anti-hard machining system for mandrel processing

Abstract

The present invention relates to a surface anti-hard processing system for mandrel processing, which includes a conveying unit, a spraying unit and a liquid recovery unit. The conveying unit and the spraying unit are arranged on a bottom plate, and the liquid recovery unit is arranged at the mandrel outlet end of the spraying unit. The conveying unit includes a mobile conveying group and a fixed trolley. The conveying group is arranged on the slide rail of the bottom plate on the side of the mandrel inlet end of the spraying unit, and the fixed trolley is arranged on the bottom plate at the mandrel outlet end of the spraying unit. The design of the present invention is scientific and reasonable, effectively integrating the conveying unit, the spraying unit and the liquid recovery unit, and making innovative improvements to the grid structure, effectively solving the problems of conveying, spraying and treatment liquid recovery in mandrel spraying. It can not only effectively improve the process efficiency of the surface anti-hard processing of the mandrel, but also be suitable for popularization and application in the spraying of other long-axis workpieces.

Description

Technical Field

[0001] The present invention belongs to the field of mandrel processing, relates to surface treatment technology of mandrels, and in particular to a surface anti-hard processing system for mandrel processing. Background Art

[0002] The mandrel belongs to a long-axis workpiece, which is a deformation tool in seamless steel pipe production. It has a long length and is used under extremely harsh conditions of high temperature and high pressure. Therefore, relatively high processing technology is required. In order to improve the wear resistance and pressure resistance of the mandrel during use, anti-hard processing treatment needs to be carried out on the surface of the mandrel. In the anti-hard processing treatment of the mandrel surface, it is required that the surface layer of the mandrel does not deform or fall off under the action of thermal stress and pressure. Usually, spraying treatment needs to be carried out on the mandrel surface to meet the requirements of higher technical parameter standards.

[0003] The spraying treatment mainly forms a coating film on the mandrel surface through the migration of the solution under the positive and negative electrodes to achieve the anti-hard processing process. The existing spraying equipment is relatively traditional and has poor shunting effect; uneven spraying on the mandrel surface is the main technical problem affecting anti-hard processing, and the mandrel conveying structure is only a single trolley, and the lateral dimension and horizontal alignment need to be adjusted manually.

[0004] The error is large and the operation is time-consuming, which greatly affects the working efficiency of the anti-hard processing on the mandrel surface, especially it cannot meet the processing requirements of mandrels of various specifications; in addition, spraying processing fluid will be generated after the spraying treatment on the mandrel surface, and usually it needs to be recycled. The recycling treatment in the prior art is relatively simple, usually a simple recycling tank or recycling barrel, with low efficiency and easy to leak, reducing the processing production efficiency and if the recycled liquid cannot be well treated, it will pose a safety hazard to production and is not friendly to the environment. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a surface anti-hard processing system for mandrel processing with multiple functions and high efficiency.

[0006] The present invention solves its technical problems by adopting the following technical solutions:

[0007] A surface anti-hard processing system for mandrel processing includes a conveying unit, a spraying unit and a liquid recycling unit. The conveying unit and the spraying unit are arranged on a bottom plate, and the liquid recycling unit is arranged at the mandrel outlet end of the spraying unit. The conveying unit includes a moving conveying group and a fixed trolley. The conveying group is arranged on the slide rail of the bottom plate on the mandrel inlet end side of the spraying unit, and the fixed trolley is arranged on the bottom plate at the mandrel outlet end of the spraying unit.

[0008] Moreover, the mobile transfer group includes a first trailer unit and a second trailer unit. A first connection block is provided at one end of the first trailer unit, and a convex block is provided at the front end of the first connection block. At one end of the second trailer unit, at the corresponding end of the first connection block of the first trailer unit, a second connection block is provided, and a groove that cooperates with the convex block on the first connection block is integrally formed on the second connection block.

[0009] Moreover, an infrared laser rangefinder is provided on the first connection block, and a signal induction receiver for the infrared laser rangefinder is correspondingly provided on the second connection block. The infrared laser rangefinder and the signal induction receiver are integrally connected to an external numerical control system through a wireless signal.

[0010] Moreover, the main body of the spraying unit is a spraying box. A number of spraying liquid inlets are provided inside the box body. An electrospray cathode is connected to the upper end of each spraying liquid inlet, a buffer pipe is connected to the lower end of each spraying liquid inlet, and a spraying pipe is connected to the lower end of the buffer pipe.

[0011] Moreover, a number of honeycomb through holes are provided on the spraying pipe.

[0012] Moreover, sealing rubber rings are provided at both the mandrel inlet and the outlet at both ends of the spraying box.

[0013] Moreover, the liquid recovery unit includes a cavity box body. A top plate is provided at the upper part of the cavity box body. Slide rails are provided on both sides of the top plate, and a slide plate is slidably mounted on the slide rails, and a handle is provided on the slide plate.

[0014] Moreover, a stepped inclined plane is provided inside the cavity box body. The stepped inclined plane includes a first inclined plane, a buffer surface, and a second inclined plane. The end of the first inclined plane is connected to the front end of the buffer surface, the end of the buffer surface is connected to the top end of the second inclined plane, and the end of the second inclined plane leads to the liquid outlet of the cavity box body. The liquid outlet is provided at the bottom of the cavity box body, and a buffer pipe is provided at the liquid outlet end. The buffer pipe is a stepped pipe structure.

[0015] Moreover, a liquid detector is provided at the end of the buffer pipe.

[0016] Moreover, a mounting member is provided on one side of the box body for mounting at the mandrel outlet of the spraying box.

[0017] The advantages and positive effects of the present invention are:

[0018] 1. When the transfer unit of this system is in use, parameters are set through the numerical control system according to the specification size of the transfer mandrel to adjust the distance between the first trolley unit and the second trolley unit. The second trolley unit slides forward with the mandrel, driving the mandrel forward. When the second trolley unit moves to the first trolley unit and the bump and groove are engaged, the transfer of the mandrel is completed. Due to the structure of the first connecting block and the second connecting block and the installation of the infrared laser rangefinder, the uniform transportation of the mandrel is effectively realized and it is ensured that the transportation trajectory of the mandrel is a horizontal straight line, making the surface anti-hard treatment of the mandrel stable and efficient.

[0019] 2. In the spraying unit of this system, the mandrel enters the spraying box for spraying. Compared with the traditional mandrel spraying device, the single spraying liquid inlet is innovatively changed to several spraying liquid inlets, and a buffer pipe is connected to the lower end of each spraying liquid inlet to reduce the problem of easy blockage caused by the large spraying liquid flow rate at the single spraying liquid inlet. Moreover, the spraying pipe is set into a honeycomb through-hole structure, which is conducive to the uniform distribution of the spraying liquid and effectively improves the spraying efficiency. In addition, sealing rubber rings are arranged at the mandrel inlet and outlet at both ends of the box body, effectively avoiding the problem of spraying liquid leakage, which is green and environmentally friendly.

[0020] 3. A liquid recovery unit is installed at the liquid outlet of the mandrel processing device of this system. The processing liquid flows down along the stepped inclined plane to slow down the flow rate and disperse the ion flow in the recovered liquid to facilitate the efficient detection at the outlet end. In addition, during the processing, the slide plate on the sliding cavity box body is flexibly moved according to the flow rate and velocity to avoid the volatilization of the processing liquid, which is green and environmentally friendly.

[0021] 4. The design of this invention is scientific and reasonable. The transfer unit, spraying unit and liquid recovery unit are effectively integrated, and innovative improvements are made to each grid structure, effectively solving the problems of transfer, spraying and processing liquid recovery in mandrel spraying. It can not only effectively improve the efficiency of the surface anti-hard processing technology of the mandrel, but also be suitable for popularization and application in the spraying of other long-axis workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view (partially sectioned) of the present invention;

[0023] Figure 2 is Figure 1 the top view of

[0024] Figure 3 is Figure 1 the partial enlarged view of part B in

[0025] Figure 4 is Figure 1 the partial enlarged view of part A in

[0026] Figure 5 is the top view of the liquid recovery unit;

[0027] Figure 6 is Figure 5 front view (partially sectioned) of Detailed implementation mode

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited thereby.

[0029] A surface anti-hard processing system for mandrel processing, as Figure 1 , Figure 2 shown, includes a conveying unit, a spraying unit 4 and a liquid recovery unit 2. The conveying unit and the spraying unit are arranged on the bottom plate. The liquid recovery unit is arranged at the mandrel outlet end of the spraying unit. The conveying unit includes a moving conveying group and a fixed trolley 1. The conveying group is arranged on the slide rail of the bottom plate on the mandrel inlet end side of the spraying unit. The fixed trolley is arranged on the bottom plate at the mandrel outlet end of the spraying unit.

[0030] The moving conveying group includes a first trolley unit 9 and a second trolley unit 10, as Figure 3 , a first connecting block 12 is arranged at one end of the first trolley unit, a convex block 14 is arranged at the front end of the first connecting block. At one end of the second trolley unit, corresponding to the first connecting block of the first trolley unit, a second connecting block 15 is arranged, and a groove 17 that cooperates with the convex block on the first connecting block is integrally formed on the second connecting block.

[0031] An infrared laser rangefinder 13 is arranged on the first connecting block, and a signal induction receiver 16 of the infrared laser rangefinder is correspondingly arranged on the second connecting block. The infrared laser rangefinder and the signal induction receiver are integrally connected to an external numerical control system through a wireless signal.

[0032] During use, parameters are set through the numerical control system according to the specification size of the conveyed mandrel to adjust the distance between the first trolley unit and the second trolley unit, as Figure 2 , the second trolley unit slides forward with the mandrel, driving the mandrel to move forward. When the second trolley unit moves to the first trolley unit and the convex block and the groove are matched, the conveying of the mandrel is completed. Due to the structure of the first connecting block and the second connecting block and the installation of the infrared laser rangefinder, the uniform transportation of the mandrel is effectively realized and the transportation track of the mandrel is ensured to be a horizontal straight line, making the surface anti-hard treatment of the mandrel stable and efficient.

[0033] The main body of the spraying unit is a spraying box 3. A number of spraying liquid inlets 6 are arranged in the box body. An electrospray cathode 5 is connected to the upper end of each spraying liquid inlet. A buffer pipe 7 is connected to the lower end of each spraying liquid inlet. A spraying pipe 11 is connected to the lower end of the buffer pipe, asFigure 4 As shown, a number of honeycomb through-holes 18 are provided on the spraying pipe. Sealing rubber rings 8 are provided at both the mandrel inlet and the outlet at both ends of the spraying box, effectively avoiding the problem of spraying liquid leakage, which is green and environmentally friendly.

[0034] As Figure 5 , Figure 6 shown, the liquid recovery unit includes a cavity box body 24. A top plate 21 is provided at the upper part of the cavity box body. Slide rails 26 are provided on both sides of the top plate. A slide plate 22 is slidably mounted on the slide rails, and a handle 23 is provided on the slide plate.

[0035] A stepped inclined plane is provided in the cavity box body. The stepped inclined plane includes a first inclined plane 27, a buffer surface 28 and a second inclined plane 29. The end of the first inclined plane is connected to the front end of the buffer surface, the end of the buffer surface is connected to the top end of the second inclined plane, and the end of the second inclined plane leads to the liquid outlet of the cavity box body. The liquid outlet is provided at the bottom of the cavity box body. A buffer pipe 20 is provided at the liquid outlet end. The buffer pipe is a stepped pipe structure. A liquid detector 19 is provided at the end of the buffer pipe. The liquid detector is used to detect whether the liquid recovery meets the standard. If it meets the standard, it is controlled to open through an electromagnetic valve. If it does not meet the standard, an alarm is given. The liquid detector is a commercially available product. An installation member 25 is provided on one side of the box body for installation at the mandrel outlet of the spraying box.

[0036] The working principle of the present invention:

[0037] During use, parameters are set through the numerical control system according to the specification size of the conveying mandrel to adjust the distance between the first trolley unit and the second trolley unit. The second trolley unit slides forward with the mandrel. When the second trolley unit moves to the first trolley unit and the cooperation of the convex block and the groove is achieved, the conveying of the mandrel is completed. Due to the structure of the first connecting block and the second connecting block and the installation of the infrared laser rangefinder, the uniform transportation of the mandrel is effectively realized and the transportation track of the mandrel is ensured to be a horizontal straight line, making the surface hardening treatment of the mandrel stable and efficient.

[0038] The mandrel enters the spraying box for spraying. Compared with the traditional mandrel spraying device, the single spraying liquid inlet is innovatively changed to a number of spraying liquid inlets, and a buffer pipe is connected to the lower end of each spraying liquid inlet, reducing the problem that the spraying liquid flow rate of a single spraying liquid inlet is large and easy to block. Moreover, the spraying pipe is set into a honeycomb through-hole structure, which is beneficial to the uniform distribution of the spraying liquid and effectively improves the spraying efficiency.

[0039] In addition, sealing rubber rings are provided at both the mandrel inlet and the outlet at both ends of the box body, effectively avoiding the problem of spraying liquid leakage, which is green and environmentally friendly.

[0040] After the mandrel spraying is completed, it is towed out by a fixed trailer and enters the next process. A liquid recovery unit is installed at the liquid outlet of the mandrel processing device. The processing liquid flows down along the stepped inclined plane to slow down the flow rate and disperse the ion flow in the recovered liquid, facilitating efficient detection at the outlet end. Additionally, during the processing, the slide plate on the sliding cavity box is flexibly adjusted according to the flow rate and velocity to avoid the volatilization of the processing liquid, which is environmentally friendly.

[0041] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that various substitutions, changes, and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. A surface anti-hard processing system for mandrel processing, characterized in that: It includes a conveying unit, a spraying unit and a liquid recovery unit. The conveying unit and the spraying unit are arranged on the bottom plate. The liquid recovery unit is arranged at the mandrel outlet end of the spraying unit. The conveying unit includes a moving conveying group and a fixed trolley. The conveying group is arranged on the slide rail of the bottom plate on the side of the mandrel inlet end of the spraying unit. The fixed trolley is arranged on the bottom plate at the mandrel outlet end of the spraying unit. The moving conveying group includes a first trolley unit and a second trolley unit. At one end of the first trolley unit, there is a first connecting block. At the front end of the first connecting block, there is a convex block. At one end of the second trolley unit, corresponding to the first connecting block end of the first trolley unit, there is a second connecting block. On the second connecting block, there is integrally formed a groove that cooperates with the convex block on the first connecting block. On the first connecting block, there is an infrared laser rangefinder. On the second connecting block, there is correspondingly arranged a signal induction receiver for the infrared laser rangefinder. The infrared laser rangefinder and the signal induction receiver are integrally connected to an external numerical control system through a wireless signal. The main body of the spraying unit is a spraying box. In the box body, there are several spraying liquid inlets. At the upper end of each spraying liquid inlet, an electrospray cathode is connected. At the lower end of each spraying liquid inlet, a buffer tube is connected. At the lower end of the buffer tube, a spraying tube is connected. On the spraying tube, there are several honeycomb through holes. The liquid recovery unit includes a cavity box body. At the upper part of the cavity box body, there is a top plate. On both sides of the top plate, there are slide rails. On the slide rails, a slide plate is slidably installed. On the slide plate, there is a handle. In the cavity box body, there is a stepped inclined plane. The stepped inclined plane includes a first inclined plane, a buffer surface and a second inclined plane. The end of the first inclined plane is connected to the front end of the buffer surface. The end of the buffer surface is connected to the top end of the second inclined plane. The end of the second inclined plane leads to the liquid outlet of the cavity box body. The liquid outlet is arranged at the bottom of the cavity box body. At the liquid outlet end, there is a buffer tube. The buffer tube is a stepped tube structure.

2. A surface anti-hard processing system for mandrel processing according to claim 1, characterized in that: Sealing rubber rings are arranged at both the mandrel inlet and outlet of the spraying box.

3. A surface anti-hard processing system for mandrel processing according to claim 1, characterized in that: A liquid detector is arranged at the end of the buffer tube.

4. A surface anti-hard processing system for mandrel processing according to claim 1, characterized in that: On one side of the box body, there is a mounting part for mounting at the mandrel outlet of the spraying box.

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