Polishing device for stainless steel pipe fitting machining

Abstract

The invention discloses a polishing device for stainless steel pipe fitting machining, and belongs to the technical field of metal pipe fitting polishing equipment.The polishing device comprises a workbench, three first supporting bases, two second supporting bases, a first polishing assembly and a second polishing assembly, the first supporting bases and the second supporting bases are arranged at intervals, and the first polishing assembly and the second polishing assembly are arranged at intervals; the first supporting seat and the second supporting seat are the same in structure, each of the first supporting seat and the second supporting seat comprises a first supporting wheel, a second supporting wheel, a base and a top plate, a V-shaped groove is formed in the base, the two first supporting wheels are rotatably mounted on the two sides of the V-shaped groove respectively, and the top plate is mounted above the base; the first polishing assembly and the second polishing assembly are used for polishing the surface of the pipe fitting, the two polishing belts can completely cover the circumferential surface of the pipe fitting, the pipe fitting can be polished while being fed, and the overall polishing efficiency is higher.

Description

Technical Field

[0001] The invention discloses a polishing device for processing stainless steel pipe fittings, and belongs to the technical field of metal pipe fitting polishing equipment. Background Art

[0002] During the production process of steel pipes, polishing machines are needed to polish the steel pipes to remove impurities such as oxide layers on the outer wall of the steel pipes, so that the outer wall of the steel pipes is clean and smooth to meet processing and use requirements. The main component of the polishing machine that completes the polishing operation is the polishing device. Most of the existing polishing devices are processed by abrasive belt polishing. Its specific structure is to fix the steel pipe on a three-jaw chuck, and the polishing belt contacts a certain point on the surface of the steel pipe. Then, a motor is used to drive the three-jaw chuck and the steel pipe to rotate synchronously, so that the polishing belt and the steel pipe have relative friction, thereby performing circumferential polishing on a local position of the steel pipe. In order to polish the entire steel pipe, the polishing belt needs to keep moving horizontally, and the steel pipe also needs to be clamped twice. This will lengthen the polishing cycle of the entire steel pipe, which is not conducive to improving the polishing efficiency, and also increases the labor intensity of the workers. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a polishing device for stainless steel pipe processing.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme. A polishing device for processing stainless steel pipe fittings includes a workbench, a first support seat, a second support seat, a first polishing assembly and a second polishing assembly. The first support seat is provided with three, the second support seat is provided with two, and the second support seat is arranged at an interval with the first support seat. The first support seat and the second support seat have the same structure, and both include a first support wheel, a second support wheel, a base and a top plate. The base is provided with a V-shaped groove. The first support wheel is provided with two and is rotatably mounted on both sides of the V-shaped groove respectively. The top plate is installed above the base. The base is provided with a cylinder for driving the top plate to rise and fall vertically. The second support wheel is rotatably mounted on the top plate. The second support wheel and the two first support wheels support the pipe fitting at three points, and the rotation tangent direction of the contact point between the first support wheel and the second support wheel and the pipe fitting is arranged parallel to the axis center line of the pipe fitting. The top plate is provided with a first power piece for driving the second support wheel to rotate. The first polishing assembly and the second polishing assembly are located on both sides of the first support seat in the middle position. The structures of the two groups are the same, and both groups include a first motor, a mounting plate, a polishing belt, a driving pulley, a guide pulley, a movable pulley and a limit assembly, wherein two guide pulleys, movable pulleys and limit assemblies are provided, the limit assembly is horizontally mounted on the mounting plate, and the two limit assemblies are at the same height, the movable pulley is rotatably mounted on the limit assembly, a U-shaped avoidance groove is provided in the middle of the mounting plate, and the two guide pulleys are rotatably arranged on the mounting plate, the first motor is fixed on the mounting plate, the driving pulley is fixed on the output shaft of the first motor, the polishing belt is sleeved on the outer sides of the driving pulley, the movable pulley and the guide pulley, the polishing belt is in a horizontally stretched state between the two movable pulleys, and when subjected to the pressure of the pipe fitting, the polishing belt covers the surface of the pipe fitting, and the maximum central angle of the polishing belt covering the pipe fitting is 180°, the avoidance grooves of the mounting plates in the first polishing assembly and the second polishing assembly are arranged in opposite directions, a second power member for driving the first polishing assembly and the second polishing assembly to vertically lift and lower is provided on the workbench, and a groove for avoiding the first polishing assembly is provided on the workbench.

[0005] Preferably, the limiting assembly includes a sliding block, a limiting bolt and a spring, a fixed block with an L-shaped structure is provided on the mounting plate, a T-shaped block is provided on the fixed block, a T-slot matching the T-shaped block is provided on the sliding block, one end of the limiting bolt passes through the fixed block and is fixedly connected to the sliding block, the spring is sleeved on the outside of the limiting bolt, and applies a force to the sliding block away from the avoidance groove.

[0006] Preferably, a first pressure roller is rotatably arranged on the sliding block, and the first pressure roller is arranged side by side with the movable pulley, and a second pressure roller is rotatably arranged on the mounting plate, and the second pressure roller is arranged side by side with the guide pulley.

[0007] Preferably, the first power member includes a second motor, a transmission pulley and a belt, the top plate is provided with a mounting groove for mounting the second support wheel and a first pressure plate, two transmission pulleys are provided, one of which is fixed on the output shaft of the second motor, and the other is connected to the second support wheel through a fixed shaft and is installed in the mounting groove for joint rotation, and the belt is sleeved on the outside of the two transmission pulleys.

[0008] Preferably, the base is provided with a through groove for installation and a second pressing plate.

[0009] Preferably, the second power component includes a third motor, a screw and a mounting frame, the mounting frame is fixed on the workbench, the third motor is fixed on the mounting frame, one end of the screw is rotatably connected to the workbench, and the other end is fixedly connected to the output shaft of the third motor, and a protrusion is provided on the mounting plate, the protrusion is threadedly connected to the screw, and one side of the protrusion is slidably arranged with the mounting frame.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. By setting the first support wheel, the second support wheel and the first power member, the first support wheel and the second support wheel support the pipe at three points, the first power member drives the second support wheel to rotate, and the rotation tangent direction of the contact point between the first support wheel and the second support wheel and the pipe is parallel to the axis of the pipe, so that the pipe can be fed quantitatively, providing support for the polishing of the entire circumferential surface of the pipe.

[0012] 2. By setting a first polishing assembly, a second polishing assembly and a second power member, the two groups of second power members respectively drive the first polishing assembly and the second polishing assembly to rise and fall, so that the polishing belts located between the two movable pulleys in the first polishing assembly and the second polishing assembly change from a horizontal state to a U-shaped structure, and the two polishing belts respectively cover the lower semicircle and the upper semicircle of the pipe fitting. In this way, when the first motor drives the polishing belts to rotate, the two polishing belts can polish the surface of the pipe fitting, and the feeding action of the pipe fitting is not affected during polishing. In this way, there is no need to clamp the pipe fitting, and the polishing of the entire outer cylindrical surface of the pipe fitting can be successfully completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the polishing device for processing stainless steel pipe fittings of the present invention;

[0014] Figure 2 It is a front view of the polishing device for processing stainless steel pipe fittings of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the pipe fitting, the first polishing assembly and the second polishing assembly in the present invention;

[0016] Figure 4 It is a structural schematic diagram of the first polishing assembly and the pipe fitting in the polishing state in the present invention;

[0017] Figure 5 It is a schematic structural diagram of the first polishing assembly in the present invention;

[0018] Figure 6 It is a structural schematic diagram of the limiting component in the present invention;

[0019] Figure 7 It is a schematic structural diagram of the second support seat and the first power member in the present invention;

[0020] Figure numerals: 1, workbench; 2, second support seat; 3, third motor; 4, groove; 5, mounting frame; 6, screw; 7, first support seat; 8, first power member; 9, second polishing assembly; 10, second power member; 11, first polishing assembly; 12, limit assembly; 13, first support wheel; 14, base; 15, movable pulley; 16, second support wheel; 17, top plate; 18, first motor; 19, mounting plate; 20, bump ; 21. Polishing belt; 22. Guide pulley; 23. Active pulley; 24. Second pressure roller; 25. Avoidance groove; 26. Fixed block; 27. Limit bolt; 28. First pressure roller; 29. ​​T-shaped block; 30. Sliding block; 31. T-slot; 32. Spring; 33. Second pressure plate; 34. First pressure plate; 35. Second motor; 36. Belt; 37. Drive pulley; 38. Mounting groove; 39. V-shaped groove; 40. Through groove; 41. Cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 7As shown, a polishing device for stainless steel pipe processing includes a workbench 1, a first support seat 7, a second support seat 2, a first polishing assembly 11 and a second polishing assembly 9, three first support seats 7 are provided, two second support seats 2 are provided, and the second support seats 2 are arranged at intervals from the first support seats 7, the first support seats 7 and the second support seats 2 have the same structure, and both include a first support wheel 13, a second support wheel 16, a base 14 and a top plate 17, a V-shaped groove 39 is provided on the base 14, two first support wheels 13 are provided, and are rotatably installed on both sides of the V-shaped groove 39, and the top plate 17 is installed on the base 14. The base 14 is provided with a cylinder 41 for driving the top plate 17 to rise and fall vertically, the second support wheel 16 is rotatably mounted on the top plate 17, the second support wheel 16 and the two first support wheels 13 support the pipe fitting at three points, and the rotation tangent direction of the contact point between the first support wheel 13 and the second support wheel 16 and the pipe fitting is arranged parallel to the axis of the pipe fitting, the top plate 17 is provided with a first power member 8 for driving the second support wheel 16 to rotate, the first polishing assembly 11 and the second polishing assembly 9 are located on both sides of the first support seat 7 in the middle position, the first polishing assembly 11 and the second polishing assembly 9 have the same structure, and both groups include a first motor 18, mounting plate 19, polishing belt 21, driving pulley 23, guide pulley 22, movable pulley 15 and limit assembly 12, two guide pulleys 22, movable pulley 15 and limit assembly 12 are provided, the limit assembly 12 is horizontally mounted on the mounting plate 19, and the two limit assemblies 12 are at the same height, the movable pulley 15 is rotatably mounted on the limit assembly 12, a U-shaped avoidance groove 25 is provided in the middle of the mounting plate 19, the two guide pulleys 22 are rotatably arranged on the mounting plate 19, the first motor 18 is fixed on the mounting plate 19, the driving pulley 23 is fixed on the output shaft of the first motor 18, the polishing belt 21 is sleeved on the outside of the active pulley 23, the movable pulley 15 and the guide pulley 22, the polishing belt 21 is in a horizontally stretched state between the two movable pulleys 15, and when subjected to the pressure of the pipe fitting, the polishing belt 21 covers the surface of the pipe fitting, and the maximum central angle of the polishing belt 21 covering the pipe fitting is 180°, the avoidance grooves 25 of the mounting plates 19 in the first polishing assembly 11 and the second polishing assembly 9 are arranged in opposite directions, the workbench 1 is provided with a second power part 10 for driving the first polishing assembly 11 and the second polishing assembly 9 to rise and fall vertically, and the workbench 1 is provided with a groove 4 for avoiding the first polishing assembly 11.

[0023] The limiting assembly 12 includes a sliding block 30, a limiting bolt 27 and a spring 32. The mounting plate 19 is provided with a fixed block 26 in an L-shaped structure, the fixed block 26 is provided with a T-shaped block 29, and the sliding block 30 is provided with a T-slot 31 that cooperates with the T-shaped block 29. One end of the limiting bolt 27 passes through the fixed block 26 and is fixedly connected to the sliding block 30. The spring 32 is sleeved on the outer side of the limiting bolt 27 and applies a force to the sliding block 30 away from the avoidance groove 25. In normal conditions, the spring 32 exerts a force on the sliding block 30 and the movable The force applied by the pulley 15 makes the polishing belt 21 in a stretched state between the two movable pulleys 15. When the polishing belt 21 hits the pipe fitting as the mounting plate 19 rises or falls, the polishing belt 21 will be deformed by the resistance pressure of the pipe fitting surface and cover the surface of the pipe fitting until the polishing belt 21 is in a U-shaped structure, so that the central angle of the polishing belt 21 covering the pipe fitting is equal to 180°. The two polishing belts 21 can cover the entire circumferential surface of the pipe fitting, so that the circumferential surface of the pipe fitting can be polished.

[0024] A first pressure roller 28 is rotatably provided on the sliding block 30, and the first pressure roller 28 is arranged side by side with the movable pulley 15. A second pressure roller 24 is rotatably provided on the mounting plate 19, and the second pressure roller 24 is arranged side by side with the guide pulley 22. When the pipe is separated from the contact with the polishing belt 21 during the feeding process, the movable pulley 15 and the sliding block 30 will be quickly reset under the action of the spring 32. At this time, the length of the polishing belt 21 between the two movable pulleys 15 is greater than the straight-line distance between the two movable pulleys 15. The first pressure roller 28 and the second pressure roller 24 can block the polishing belt 21, and can effectively prevent the polishing belt 21 from separating from the movable pulley 15, thereby ensuring that the polishing of the pipe continues.

[0025] The first power member 8 includes a second motor 35, a transmission pulley 37 and a belt 36. The top plate 17 is provided with a mounting groove 38 and a first pressure plate 34 for mounting the second support wheel 16. Two transmission pulleys 37 are provided, one of which is fixed on the output shaft of the second motor 35, and the other is connected to the second support wheel 16 through a fixed shaft and is mounted in the mounting groove 38 for common rotation. The belt 36 is sleeved on the outer sides of the two transmission pulleys 37. The second motor 35 drives the transmission pulley 37 to rotate, and the belt 36 can drive another transmission pulley 37 and the second support wheel 16 to rotate. The second support wheel 16 can drive the pipe to be fed at a uniform speed, so that the entire circumferential surface of the pipe can be polished. The base 14 is provided with a through groove 40 and a second pressure plate 33 for mounting the first support wheel 13. Such a design can facilitate the disassembly and assembly of the first support wheel 13.

[0026] The second power member 10 includes a third motor 3, a screw 6 and a mounting frame 5. The mounting frame 5 is fixed on the workbench 1. The third motor 3 is fixed on the mounting frame 5. One end of the screw 6 is rotatably connected to the workbench 1, and the other end is fixedly connected to the output shaft of the third motor 3. A protrusion 20 is provided on the mounting plate 19. The protrusion 20 is threadedly connected to the screw 6, and one side of the protrusion 20 is slidably arranged with the mounting frame 5. The third motor 3 drives the screw 6 to rotate forward and reverse, so that the protrusion 20 can drive the mounting plate 19 to rise and fall vertically, thereby facilitating the loading and polishing of pipe fittings.

[0027] Working principle: first, let the two groups of second power members 10 drive the first polishing assembly 11 and the second polishing assembly 9 to move to the lowest point and the highest point respectively, then let the cylinder 41 drive the top plate 17 to move to the highest point, and place the pipe fitting on one of the first support seats 7 and the second support seat 2, so that one end of the pipe fitting is just above the polishing belt 21 in the first polishing assembly 11, and let the cylinder 41 drive the top plate 17 to descend, so that the second support wheel 16 presses the pipe fitting, so that it and the two first support wheels 13 form a three-point support for the pipe fitting, and then the second power member 10 drives the first polishing assembly 11 to move upward. When the polishing belt 21 contacts the pipe fitting, the polishing belt 21 is compressed and drives the two active pulleys 15 and the sliding block 30 to approach each other, so that the polishing belt 21 between the two active pulleys 15 eventually changes from a horizontal state to a U-shaped structure with an opening facing upward, and then the first motor 18 drives the active pulley 23 to drive the polishing belt 21 to rotate, so that the lower semicircular surface of the pipe fitting can be polished, and in the first polishing assembly 11 While polishing the pipe fitting, the first power member 8 drives the second supporting wheel 16 to rotate, so that the pipe fitting can be fed at a uniform speed. When one end of the pipe fitting moves to the bottom of the polishing belt 21 in the second polishing assembly 9, another group of second power members 10 drives the second polishing assembly 9 to descend, so that the polishing belt 21 in the second polishing assembly 9, after being subjected to the resistance pressure of the pipe fitting, allows the part of the polishing belt 21 located between the two movable pulleys 15 to become a U-shaped structure with the opening facing downward, and allows the polishing belt 21 to cover the upper semicircle of the pipe fitting. Driven by the first motor 18 and the active pulley 23, the polishing belt 21 can polish the upper semicircular surface of the pipe fitting, so that the entire outer cylindrical surface of the pipe fitting can be polished. The whole process does not require secondary clamping of the pipe fitting, shortening the entire polishing cycle, and the loading and unloading process of the pipe fitting is convenient and simple to operate, effectively improving the polishing efficiency. At the same time, the movement of the second polishing assembly 9 can be controlled by an infrared sensor or a proximity switch, thereby realizing semi-automatic polishing control.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A polishing device for processing stainless steel pipe fittings, comprising a workbench (1), a first support seat (7), a second support seat (2), a first polishing assembly (11) and a second polishing assembly (9), characterized in that: The first support base (7) is provided with three, the second support base (2) is provided with two, and the second support base (2) and the first support base (7) are arranged at an interval. The first support base (7) and the second support base (2) have the same structure, and both comprise a first support wheel (13), a second support wheel (16), a base (14) and a top plate (17). The base (14) is provided with a V-shaped groove (39). The first support wheel (13) is provided with two and is rotatably mounted on both sides of the V-shaped groove (39). The top plate (17) is mounted above the base (14). The base (14) is provided with a cylinder (41) for driving the top plate (17) to vertically rise and fall. The second support wheel (16) The second supporting wheel (16) and the two first supporting wheels (13) are rotatably mounted on a top plate (17), the second supporting wheel (16) and the two first supporting wheels (13) support the pipe at three points, and the rotation tangent direction of the contact point between the first supporting wheel (13) and the second supporting wheel (16) and the pipe is arranged parallel to the axis of the pipe, the top plate (17) is provided with a first power member (8) for driving the second supporting wheel (16) to rotate, and the first polishing assembly (11) and the second polishing assembly (9) are located on both sides of the first supporting seat (7) at the middle position of the first polishing assembly (11) and the second polishing assembly (9), the first polishing assembly (11) and the second polishing assembly (9) have the same structure, and both groups include a first motor (18), a mounting plate (19), a polishing belt (21), a driving pulley (23), a guide pulley (22 ), a movable pulley (15) and a limit assembly (12), wherein two of the guide pulley (22), the movable pulley (15) and the limit assembly (12) are provided, the limit assembly (12) is horizontally mounted on the mounting plate (19), and the two limit assemblies (12) are at the same height, the movable pulley (15) is rotatably mounted on the limit assembly (12), a U-shaped avoidance groove (25) is provided in the middle of the mounting plate (19), the two guide pulleys (22) are rotatably mounted on the mounting plate (19), the first motor (18) is fixed on the mounting plate (19), the active pulley (23) is fixed on the output shaft of the first motor (18), and the polishing belt (21) is sleeved on the active pulley (23), the outer sides of the movable pulley (15) and the guide pulley (22), the polishing belt (21) is in a horizontally stretched state between the two movable pulleys (15), and when subjected to the pressure of the pipe fitting, the polishing belt (21) covers the surface of the pipe fitting, and the maximum central angle of the polishing belt (21) covering the pipe fitting is 180°, the avoidance grooves (25) of the mounting plates (19) in the first polishing assembly (11) and the second polishing assembly (9) are arranged in opposite directions, the workbench (1) is provided with a second power member (10) for driving the first polishing assembly (11) and the second polishing assembly (9) to vertically lift, and the workbench (1) is provided with a groove (4) for avoiding the first polishing assembly (11).

2. The polishing device for stainless steel pipe processing according to claim 1, characterized in that: The limiting assembly (12) comprises a sliding block (30), a limiting bolt (27) and a spring (32); the mounting plate (19) is provided with a fixed block (26) having an L-shaped structure; the fixed block (26) is provided with a T-shaped block (29); the sliding block (30) is provided with a T-slot (31) that cooperates with the T-shaped block (29); one end of the limiting bolt (27) passes through the fixed block (26) and is fixedly connected to the sliding block (30); the spring (32) is sleeved on the outside of the limiting bolt (27) and applies a force to the sliding block (30) to move away from the avoidance groove (25).

3. The polishing device for stainless steel pipe processing according to claim 2, characterized in that: A first pressure roller (28) is rotatably disposed on the sliding block (30), the first pressure roller (28) being arranged side by side with the movable pulley (15), and a second pressure roller (24) is rotatably disposed on the mounting plate (19), the second pressure roller (24) being arranged side by side with the guide pulley (22).

4. The polishing device for stainless steel pipe processing according to claim 1, characterized in that: The first power member (8) comprises a second motor (35), a transmission pulley (37) and a belt (36); a mounting groove (38) for mounting the second support wheel (16) and a first pressure plate (34) are provided on the top plate (17); two transmission pulleys (37) are provided, one of which is fixed on the output shaft of the second motor (35), and the other is connected to the second support wheel (16) via a fixed shaft and is mounted in the mounting groove (38) for rotation therewith; the belt (36) is sleeved on the outer sides of the two transmission pulleys (37).

5. The polishing device for stainless steel pipe processing according to claim 1, characterized in that: The base (14) is provided with a through slot (40) for installation and a second pressing plate (33).

6. The polishing device for stainless steel pipe processing according to claim 1, characterized in that: The second power member (10) comprises a third motor (3), a screw rod (6) and a mounting frame (5); the mounting frame (5) is fixed on the workbench (1); the third motor (3) is fixed on the mounting frame (5); one end of the screw rod (6) is rotatably connected to the workbench (1); the other end is fixedly connected to the output shaft of the third motor (3); a protrusion (20) is provided on the mounting plate (19); the protrusion (20) is threadedly connected to the screw rod (6), and one side of the protrusion (20) is slidably arranged with the mounting frame (5).

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