A passivation polishing device for galvanized steel pipe

Abstract

The application relates to the technical field of steel pipe galvanizing processing, and provides a steel pipe galvanizing post-passivation polishing device, which comprises a workbench and a polishing device, a first sliding groove is formed in the workbench, two symmetrical first sliding blocks are slidably installed in the first sliding groove of the workbench, a first driving component is started to drive the two first sliding blocks to move oppositely or reversely through a double-threaded rod, a conical clamping block is rotatably installed on each of the two first sliding blocks, and a third driving component for driving the conical clamping block to rotate is detachably installed on one of the first sliding blocks. The steel pipe is fixed between the two conical clamping blocks, and different-diameter steel pipes can be fixed and installed. The third driving component is started to drive the steel pipe to rotate, the second driving component is started to drive the polishing device to circularly and reciprocally move along the workbench through a transmission mechanism, the outer wall of the steel pipe is polished for 360 degrees, and the polishing effect and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe galvanizing processing technology, and specifically relates to a passivation and grinding device for steel pipes after galvanizing. Background Technology

[0002] Zinc passivation is a film-forming process used in zinc plating. Because zinc is a reactive metal, if proper post-treatment is not performed after zinc electroplating, the coating will quickly darken and white corrosion products will appear. To reduce the chemical activity of zinc, chromate solution is often used for passivation treatment, forming a chromate conversion film on the zinc surface.

[0003] Application No. 202321849468.9 discloses a passivation and grinding device for galvanized steel pipes, relating to the field of steel pipe galvanizing processing technology. This passivation and grinding device for galvanized steel pipes includes: a worktable, a base movably connected above the worktable, a support assembly fixedly installed above the worktable, and a grinding assembly movably connected above the support assembly; the support assembly includes: a support frame fixedly installed above the worktable, a drive motor fixedly installed on one side of the support frame, a moving rod movably connected to one side of the drive motor, a moving sleeve movably connected to the outer side of the moving rod, and a moving seat fixedly installed above the moving sleeve. This new type of steel pipe passivation grinding device has a highly integrated structure and is convenient and quick to use. It can be used to grind the passivated steel pipe after galvanizing, increasing the surface smoothness of the passivated steel pipe and improving its later use. However, it requires manual operation to continuously rotate the steel pipe and grind it 360 degrees through the grinding device. This is labor-intensive, has a high risk factor, and is prone to uneven grinding. Utility Model Content

[0004] In view of this, the present invention provides a passivation and grinding device for galvanized steel pipes. The first driving component is activated to drive two first sliding blocks to move relative to or away from each other through a double threaded rod, fixing the steel pipe between two conical clamping blocks and enabling the installation and fixing of steel pipes of different diameters. The third driving component is activated to drive the steel pipe to rotate, and the second driving component is activated to drive the grinding device to move cyclically along the worktable through a transmission mechanism, thereby achieving 360-degree grinding of the outer wall of the steel pipe and improving the grinding effect and quality.

[0005] The technical solution is as follows: A passivation and grinding device for galvanized steel pipes includes a worktable and a grinding device. The grinding device is slidably mounted on the worktable. A second driving component is detachably mounted on the worktable. The second driving component is connected to the grinding device via a transmission mechanism. Activating the second driving component drives the grinding device to reciprocate along the worktable via the transmission mechanism. A first sliding groove is provided on the worktable. Two symmetrical first sliding blocks are slidably mounted in the first sliding groove of the worktable. Each of the two first sliding blocks has a third threaded hole. A double threaded rod is rotatably mounted on the worktable. The double threaded rod is threaded into the third threaded hole. A first driving component for driving the double threaded rod to rotate is detachably mounted on the worktable. Activating the first driving component drives the two first sliding blocks to move relative to or away from each other via the double threaded rod. A conical clamping block is rotatably mounted on each of the two first sliding blocks. A third driving component for driving the conical clamping block to rotate is detachably mounted on one of the first sliding blocks.

[0006] During use, the above technical solution works as follows: the first drive component is activated to drive two first sliding blocks to move relative to or away from each other via a double threaded rod, fixing the steel pipe between two conical clamping blocks and enabling the installation and fixing of steel pipes of different diameters; the third drive component is activated to drive the steel pipe to rotate; and the second drive component is activated to drive the grinding device to move cyclically along the worktable via a transmission mechanism, thereby achieving 360-degree grinding of the outer wall of the steel pipe and improving the grinding effect and quality.

[0007] Preferably, the cross-section of the first sliding groove is U-shaped, and the cross-section of the first sliding block is U-shaped corresponding to the first sliding groove.

[0008] Preferably, the double-threaded rod is provided with a first rotating shaft, the worktable is provided with a first mounting hole, the first rotating shaft is rotatably installed in the first mounting hole, and the output end of the first driving component is connected to the first rotating shaft for transmission.

[0009] Preferably, the double-threaded rod is provided with two external threads with opposite thread directions, and the two third threaded holes have opposite thread directions.

[0010] Preferably, a first support plate is fixedly provided on the first sliding block, and a second mounting hole is provided on the first support plate. A coaxial second rotating shaft is fixedly provided on the conical clamping block. The second rotating shaft is rotatably installed in the second mounting hole, and the output end of the third driving component is connected and fixed to one of the second rotating shafts.

[0011] Preferably, anti-slip protrusions are fixedly provided on the outer surface of the conical clamping block.

[0012] Preferably, a mounting base is detachably mounted on the workbench, and a fourth driving component is detachably mounted on the mounting base. A mounting plate is fixedly mounted on the power end of the fourth driving component, and two symmetrical rotating rollers are rotatably mounted on the mounting plate, with the two rotating rollers corresponding to the conical clamping block.

[0013] During use, the above technical solution works as follows: the fourth drive component is activated to drive two rotating rollers to move up and down via the mounting plate, thereby automatically feeding and unloading the steel pipes and providing support for the middle position of the steel pipes, thus protecting them.

[0014] Preferably, the transmission mechanism includes a U-shaped support frame, on which an adjusting screw is rotatably mounted. The second driving component is connected to the adjusting screw in a transmission manner. Two symmetrical second guide rods are fixedly arranged on the U-shaped support frame. The grinding device is mounted on a support platform. A second guide hole and a second screw hole are provided on the support platform. The adjusting screw is threaded into the second screw hole, and the second guide rod is slidably mounted in the second guide hole.

[0015] Preferably, the workbench has a first groove, and two symmetrical first guide rods are fixedly installed in the first groove. The U-shaped support frame has two symmetrical first guide holes, and the two first guide rods are slidably installed in the two first guide holes respectively. The workbench has a first screw hole, and an adjusting bolt is rotatably installed on the U-shaped support frame. The adjusting bolt is threaded into the first screw hole.

[0016] Preferably, the grinding device includes two symmetrical second support plates fixedly installed on the support platform, a grinding wheel rotatably installed between the two second support plates, a grinding motor detachably installed on the second support plates, the grinding motor being connected to the grinding wheel via a sprocket and chain transmission mechanism, and a protective cover fixedly installed on the two second support plates.

[0017] During use, the above technical solution involves operating the adjusting bolts to move the U-shaped support frame along the worktable, adjusting the position of the grinding device, and is suitable for grinding pipes of different diameters.

[0018] After adopting the above technical solution, the beneficial effects of this utility model are:

[0019] 1. The first drive component is activated to drive the two first sliding blocks to move relative to or away from each other via the double threaded rod, fixing the steel pipe between the two conical clamping blocks and enabling the installation and fixing of steel pipes of different diameters. The third drive component is activated to drive the steel pipe to rotate. The second drive component is activated to drive the grinding device to move back and forth along the worktable via the transmission mechanism, so as to achieve 360-degree grinding of the outer wall of the steel pipe and improve the grinding effect and quality.

[0020] 2. The fourth drive unit is activated to drive two rotating rollers to move up and down through the mounting plate, thereby realizing automatic feeding and unloading of steel pipes, while also providing support for the middle position of the steel pipes and protecting them.

[0021] 3. By operating the adjusting bolt, the U-shaped support frame is moved along the worktable to adjust the position of the grinding device, which is suitable for grinding pipes of different diameters. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a top view of the present invention;

[0025] Figure 3 This is an exploded view of the present invention;

[0026] Figure 4 This is a perspective view of the workbench of this utility model;

[0027] Figure 5 This is an exploded view of the U-shaped support frame and grinding device of this utility model;

[0028] Figure 6 This is a partial perspective view of the present invention;

[0029] Figure 7 This is a partial exploded view of the present invention;

[0030] Figure 8 This is a perspective view of the conical clamping block of this utility model;

[0031] Figure 9 This is a schematic diagram of the installation of the rotating roller in Embodiment 2 of this utility model;

[0032] Figure 10 This is a perspective view of the grinding device of this utility model;

[0033] In the figure, 1. Worktable; 2. First sliding groove; 3. First mounting hole; 4. First groove; 5. First guide rod; 6. First screw hole; 7. U-shaped support frame; 8. First guide hole; 9. Adjusting bolt; 10. Second guide rod; 11. Adjusting screw; 12. Second drive component; 13. Support platform; 14. Second guide hole; 15. Second screw hole; 16. Grinding device; 17. First rotating shaft; 18. Double threaded rod; 19. First drive component 20. First sliding block; 21. Third screw hole; 22. First support plate; 23. Second mounting hole; 24. Second rotating shaft; 25. Third drive component; 26. Conical clamping block; 27. Mounting base; 28. Fourth drive component; 29. ​​Mounting plate; 30. Rotating roller; 1601. Second support plate; 1602. Grinding wheel; 1603. Grinding motor; 1604. Sprocket and chain drive mechanism; 1605. Protective cover; 31. Anti-slip protrusion; Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] like Figures 1 to 10 As shown, a passivation and grinding device for galvanized steel pipes includes a worktable 1 and a grinding device 16. The grinding device 16 is slidably mounted on the worktable 1. A second driving component 12 is detachably mounted on the worktable 1. The second driving component 12 is connected to the grinding device 16 via a transmission mechanism. Activating the second driving component 12 drives the grinding device 16 to reciprocate along the worktable 1 via the transmission mechanism. A first sliding groove 2 is provided on the worktable 1. Two symmetrical first sliding blocks 20 are slidably mounted within the first sliding groove 2 of the worktable 1. Each of the worktables 0 has a third screw hole 21. A double threaded rod 18 is rotatably mounted on the worktable 1. The double threaded rod 18 is threaded into the third screw hole 21. A first drive component 19 for driving the double threaded rod 18 to rotate is detachably mounted on the worktable 1. When the first drive component 19 is activated, it drives two first sliding blocks 20 to move relative to or away from each other through the double threaded rod 18. A conical clamping block 26 is rotatably mounted on each of the two first sliding blocks 20. A third drive component 25 for driving the conical clamping block 26 to rotate is detachably mounted on one of the first sliding blocks 20.

[0037] The cross-section of the first sliding groove 2 is concave, and the cross-section of the first sliding block 20 is convex, corresponding to the first sliding groove 2.

[0038] A first rotating shaft 17 is provided on the double threaded rod 18, and a first mounting hole 3 is provided on the worktable 1. The first rotating shaft 17 is rotatably installed in the first mounting hole 3, and the output end of the first driving component 19 is connected to the first rotating shaft 17 for transmission.

[0039] The double-threaded rod 18 has two external threads with opposite thread directions, and the two third threaded holes 21 have opposite thread directions.

[0040] Specifically: the first drive component 19 is a forward and reverse servo motor, and the first drive component 19 is mounted on the worktable 1 by bolts and nuts.

[0041] A first support plate 22 is fixedly mounted on the first sliding block 20. A second mounting hole 23 is provided on the first support plate 22. A coaxial second rotating shaft 24 is fixedly mounted on the conical clamping block 26. The second rotating shaft 24 is rotatably mounted in the second mounting hole 23. The output end of the third driving component 25 is connected and fixed to one of the second rotating shafts 24.

[0042] Specifically: the third drive component 25 is a drive motor, which is mounted on the first support plate 22 by bolts and nuts.

[0043] Anti-slip protrusions 31 are fixedly provided on the outer surface of the conical clamping block 26.

[0044] In actual operation: the steel pipe is placed between two conical clamping blocks 26. The first drive component 19 is started, which drives the double threaded rod 18 to rotate through the first rotating shaft 17. The double threaded rod 18 drives the two first sliding blocks 20 to move synchronously along the first sliding groove 2. The two first sliding blocks 20 drive the two conical clamping blocks 26 to move relative to each other through the first support plate 22. The steel pipe is clamped by the two conical clamping blocks 26. The anti-slip protrusion 31 prevents the steel pipe from rotating during rotation. The third drive component 25 is started, which drives the conical clamping blocks 26 to rotate through the second rotating shaft 24. The conical clamping blocks 26 drive the steel pipe to rotate.

[0045] Example 2

[0046] Based on Embodiment 1, a mounting base 27 is installed on the workbench 1 by bolt thread. A fourth drive component 28 is detachably installed on the mounting base 27. A mounting plate 29 is fixedly installed on the power end of the fourth drive component 28. Two symmetrical rotating rollers 30 are rotatably installed on the mounting plate 29. The two rotating rollers 30 correspond to the conical clamping block 26.

[0047] Specifically: the fourth drive component 28 is an electric push rod or a hydraulic cylinder, and the two rotating rollers 30 do not affect the grinding of the steel pipe by the grinding device 16.

[0048] In actual operation: the steel pipe is placed between the two rotating rollers 30, and the fourth drive component 28 is activated to drive the two rotating rollers 30 to move up and down through the mounting plate 29, so as to realize the automatic feeding and unloading of the steel pipe, and at the same time realize the support of the middle position of the steel pipe, thus realizing the protection function of the steel pipe.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, the transmission mechanism includes a U-shaped support frame 7, on which an adjusting screw 11 is rotatably mounted. The second driving component 12 is connected to the adjusting screw 11 in a transmission manner. Two symmetrical second guide rods 10 are fixedly arranged on the U-shaped support frame 7. The grinding device 16 is mounted on the support platform 13. The support platform 13 has a second guide hole 14 and a second screw hole 15. The adjusting screw 11 is threadedly installed in the second screw hole 15, and the second guide rod 10 is slidably installed in the second guide hole 14.

[0051] Specifically: the second drive component 12 is a forward and reverse mounted servo motor, and the second drive component 12 is mounted on the U-shaped support frame 7 by bolts and nuts.

[0052] The workbench 1 has a first groove 4, and two symmetrical first guide rods 5 are fixedly installed in the first groove 4 of the workbench 1. The U-shaped support frame 7 has two symmetrical first guide holes 8, and the two first guide rods 5 are slidably installed in the two first guide holes 8 respectively. The workbench 1 has a first screw hole 6, and an adjusting bolt 9 is rotatably installed on the U-shaped support frame 7. The adjusting bolt 9 is threaded into the first screw hole 6.

[0053] In actual operation: the operating adjustment bolt 9 is rotated in the first screw hole 6, and the U-shaped support frame 7 is pushed to move along the first guide rod 5 by the adjustment bolt 9, thereby adjusting the position of the U-shaped support frame 7 in the first groove 4 on the worktable 1, thereby adjusting the distance between the grinding device 16 and the steel pipe. The second drive component 12 is started and the support platform 13 is driven to move along the second guide rod 10 by the adjustment screw 11. The support platform 13 drives the grinding device 16 to move in a cyclical manner.

[0054] Example 4

[0055] Based on Example 3, such as Figure 10As shown, the grinding device 16 includes two symmetrical second support plates 1601 fixedly installed on the support platform 13. A grinding wheel 1602 is rotatably installed between the two second support plates 1601. A grinding motor 1603 is detachably installed on the second support plate 1601. The grinding motor 1603 is connected to the grinding wheel 1602 through a sprocket and chain transmission mechanism 1604. A protective cover 1605 is fixedly installed on the two second support plates 1601.

[0056] In actual operation: the grinding motor 1603 is started and drives the grinding wheel 1602 to rotate through the sprocket and chain transmission mechanism 1604, and the grinding wheel 1602 grinds the outer surface of the steel pipe.

[0057] The working principle of this utility model is as follows: The steel pipe is placed between two conical clamping blocks 26. The first driving component 19 is activated, which drives the double threaded rod 18 to rotate through the first rotating shaft 17. The double threaded rod 18 drives the two first sliding blocks 20 to move synchronously along the first sliding groove 2. The two first sliding blocks 20 drive the two conical clamping blocks 26 to move relative to each other through the first support plate 22. The steel pipe is clamped by the two conical clamping blocks 26. The anti-slip protrusion 31 prevents the steel pipe from rotating during rotation. The third driving component 25 is activated, which drives the conical clamping blocks 26 to rotate through the second rotating shaft 24. The conical clamping blocks 26 drive the steel pipe to rotate.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A passivation and grinding device for galvanized steel pipes, comprising a worktable (1) and a grinding device (16), wherein the grinding device (16) is slidably mounted on the worktable (1), and a second driving component (12) is detachably mounted on the worktable (1). The second driving component (12) is connected to the grinding device (16) via a transmission mechanism. Activating the second driving component (12) drives the grinding device (16) to reciprocate along the worktable (1) via the transmission mechanism. The device is characterized in that: The workbench (1) is provided with a first sliding groove (2). Two symmetrical first sliding blocks (20) are slidably installed in the first sliding groove (2) of the workbench (1). Each of the two first sliding blocks (20) is provided with a third screw hole (21). A double threaded rod (18) is rotatably installed on the workbench (1). The double threaded rod (18) is threaded into the third screw hole (21). A first driving component (19) for driving the double threaded rod (18) to rotate is detachably installed on the workbench (1). When the first driving component (19) is activated, the two first sliding blocks (20) are driven to move relative to each other or in opposite directions through the double threaded rod (18). A conical clamping block (26) is rotatably installed on each of the two first sliding blocks (20). A third driving component (25) for driving the conical clamping block (26) to rotate is detachably installed on one of the first sliding blocks (20).

2. The passivation and grinding device for galvanized steel pipes according to claim 1, characterized in that, The first sliding groove (2) has a 'U' shaped cross section, and the first sliding block (20) has a 'T' shaped cross section corresponding to the first sliding groove (2).

3. The passivation and grinding device for galvanized steel pipes according to claim 2, characterized in that, The double threaded rod (18) is provided with a first rotating shaft (17), and the worktable (1) is provided with a first mounting hole (3). The first rotating shaft (17) is rotatably installed in the first mounting hole (3), and the output end of the first driving component (19) is connected to the first rotating shaft (17) for transmission.

4. The passivation and grinding device for galvanized steel pipes according to claim 3, characterized in that, The double-threaded rod (18) is provided with two external threads with opposite thread directions, and the two third threaded holes (21) have opposite thread directions.

5. The passivation and grinding device for galvanized steel pipes according to claim 4, characterized in that, A first support plate (22) is fixedly provided on the first sliding block (20), and a second mounting hole (23) is provided on the first support plate (22). A coaxial second rotating shaft (24) is fixedly provided on the conical clamping block (26), and the second rotating shaft (24) is rotatably installed in the second mounting hole (23). The output end of the third driving component (25) is connected and fixed to one of the second rotating shafts (24).

6. The passivation and grinding device for galvanized steel pipes according to claim 5, characterized in that, Anti-slip protrusions (31) are fixedly provided on the outer surface of the conical clamping block (26).

7. The passivation and grinding device for galvanized steel pipes according to claim 6, characterized in that, The workbench (1) is detachably mounted with a mounting base (27), and a fourth drive component (28) is detachably mounted on the mounting base (27). The power end of the fourth drive component (28) is fixedly mounted with a mounting plate (29). Two symmetrical rotating rollers (30) are rotatably mounted on the mounting plate (29), and the two rotating rollers (30) correspond to the conical clamping block (26).

8. A passivation and grinding device for galvanized steel pipes according to any one of claims 1-7, characterized in that, The transmission mechanism includes a U-shaped support frame (7), on which an adjusting screw (11) is rotatably mounted. The second driving component (12) is connected to the adjusting screw (11) in a transmission manner. Two symmetrical second guide rods (10) are fixedly arranged on the U-shaped support frame (7). The grinding device (16) is mounted on a support platform (13). The support platform (13) has a second guide hole (14) and a second screw hole (15). The adjusting screw (11) is threadedly installed in the second screw hole (15), and the second guide rod (10) is slidably installed in the second guide hole (14).

9. The passivation and grinding device for galvanized steel pipes according to claim 8, characterized in that, The workbench (1) has a first groove (4) and two symmetrical first guide rods (5) are fixedly installed in the first groove (4) of the workbench (1). The U-shaped support frame (7) has two symmetrical first guide holes (8) and the two first guide rods (5) are slidably installed in the two first guide holes (8) respectively. The workbench (1) has a first screw hole (6) and an adjusting bolt (9) is rotatably installed on the U-shaped support frame (7). The adjusting bolt (9) is threaded into the first screw hole (6).

10. The passivation and grinding device for galvanized steel pipes according to claim 9, characterized in that, The polishing device (16) includes two symmetrical second support plates (1601) fixedly installed on the support platform (13). A polishing wheel (1602) is rotatably installed between the two second support plates (1601). A polishing motor (1603) is detachably installed on the second support plate (1601). The polishing motor (1603) is connected to the polishing wheel (1602) through a sprocket and chain transmission mechanism (1604). A protective cover (1605) is fixedly installed on the two second support plates (1601).

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