Polishing device for stainless steel pipe machining

Abstract

The utility model provides a polishing device for stainless steel pipe machining, and relates to the technical field of polishing devices.The polishing device comprises a bottom plate, a fixing piece used for clamping and fixing a stainless steel pipe is mounted at the top of the bottom plate, and an inner machining piece used for polishing the inner wall of the stainless steel pipe is arranged on the front side of the fixing piece; an outer machining part used for polishing the outer portion of the stainless steel pipe is arranged outside the inner machining part. The inner machining part comprises a hollow plate arranged at the top of the bottom plate, through holes are formed in the two ends of the hollow plate, and inner grinding plates are installed in the two through holes; according to the technical scheme, gas is conveyed into the hollow plate through the gas pipe by means of the gas pump, the two sealing plates are pushed to move outwards by means of increase of the gas, the sealing plates drive the inner grinding plates to make contact with the inner wall of the stainless steel pipe, stress on the sealing plates can be more balanced by means of supplement of the gas, and the inner grinding plates can become a whole; and the effect of fully grinding the stainless steel pipe is achieved, and the situation that the inner grinding plate is not fully ground or even damaged due to pressure unbalance can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device for processing stainless steel pipes. Background Art

[0002] Grinding is a type of surface modification technology, which generally refers to a processing method that uses rough objects (such as sandpaper containing high hardness particles) to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness.

[0003] Stainless steel pipe is a hollow, long, round steel bar widely used in industrial pipelines and mechanical components in the petroleum, chemical, medical, food, light industry, and instrumentation industries. Furthermore, its light weight, while maintaining the same bending and torsional strength, makes it widely used in the manufacture of mechanical parts and engineering structures. With the continuous advancement of automation technology, the polishing of stainless steel pipes has gradually shifted from manual polishing to machine polishing, significantly improving processing efficiency and safety.

[0004] The patent document with announcement number CN218284833U discloses a grinding device for stainless steel pipe processing. One end of the stainless steel pipe to be ground is fixed to a centering chuck. The screw rotates under the drive of the motor and drives the slider to drive the stainless steel pipe to slide toward the grinding roller. The driving mechanism drives the slide bar to slide along the second slide groove, so that the first grinding block is close to the inner wall of the stainless steel pipe, so that the grinding roller can adapt to stainless steel pipes of different diameters. The first servo motor drives the stainless steel pipe to rotate, and the motor continues to drive the slider to approach the grinding roller, thereby grinding the inner wall of the stainless steel pipe.

[0005] However, in the process of implementing the above technical solution, it was found that the above technical solution has the following technical problems: the technical solution is composed of a plurality of first grinding blocks distributed at intervals. Since it is not a whole and there are gaps, the grinding block cannot fully contact the stainless steel pipe, and there are some areas that are not polished. It takes multiple repeated grindings to achieve the polishing effect, which affects the polishing efficiency. Utility Model Content

[0006] In order to overcome the existing deficiencies, an embodiment of the present application provides a grinding device for stainless steel pipe processing, in which gas is transported to the inside of the hollow plate through an air pump via an air pipe. The two sealing plates are pushed outward by the growth of gas, and the sealing plates then drive the inner grinding plate to contact the inner wall of the stainless steel pipe. By replenishing the gas, the sealing plate can be subjected to more balanced force, and the inner grinding plate can be made into a whole, thereby achieving the effect of fully grinding the stainless steel pipe and improving the grinding efficiency.

[0007] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0008] A grinding device for processing stainless steel pipes, comprising a base plate:

[0009] A fixing piece for clamping and fixing the stainless steel pipe is installed on the top of the bottom plate, and an inner processing piece for grinding the inner wall of the stainless steel pipe is provided on the front side of the fixing piece, and an outer processing piece for grinding the outer surface of the stainless steel pipe is provided on the outside of the inner processing piece;

[0010] The inner processing part includes a hollow plate arranged on the top of the bottom plate, with through holes opened at both ends of the hollow plate, and inner grinding plates installed in the two through holes, and sealing plates installed on the sides of the two inner grinding plates close to each other, and the outer sides of the sealing plates are in contact with the inner wall of the hollow plate, and a sealing strip is embedded on the outer side of the sealing plate, and a plurality of springs distributed at intervals are installed on the front and rear ends of the two sealing plates and on the side away from each other, and the ends of the springs away from the sealing plates are fixed to the inner wall of the hollow plate;

[0011] Among them, the front end of the hollow plate is provided with a support plate installed on the top of the base plate, and an air pump is installed on the front side of the support plate. The top of the air pump is connected to an air pipe, and the top of the air pipe passes through the support plate and the hollow plate in sequence and extends to the inside of the hollow plate.

[0012] In a possible implementation, the length of the inner grinding plate is equal to the length of the through hole, and the length of the sealing plate is greater than the length of the inner grinding plate.

[0013] In one possible implementation, the external processing part includes a fixed bracket that is sleeved on the outside of the rear end of the hollow plate, and the bottoms of both ends of the fixed bracket are fixed to the top of the base plate, a first electric push rod is installed at the top of the inner cavity of the fixed bracket, and an external grinding plate is installed at the bottom end of the first electric push rod.

[0014] In a possible implementation, the fixing member includes a mounting tube provided on the top of the rear end of the base plate, and a three-jaw chuck for fixing the stainless steel pipe is installed inside the front end of the mounting tube.

[0015] In a possible implementation, a mounting plate is provided at the rear end of the mounting cylinder, and the rear end of the mounting cylinder is fixed to the front side of the mounting plate via a rotating shaft;

[0016] A servo motor is installed at the rear side of the top end of the mounting plate, and the output shaft of the servo motor passes through the mounting plate and is fixed to the rotating shaft on the mounting cylinder.

[0017] In one possible implementation, two second electric push rods are installed on the top of the base plate, and the two second electric push rods are symmetrically distributed about the central axis of the base plate. A connecting block for connecting to the mounting plate is installed at the rear end of the second electric push rod, and the two second electric push rods are arranged inside the bottom end of the fixed bracket.

[0018] In one possible implementation, a limit block is provided on the side away from each other of the two second electric push rods, and the limit block is installed on the top of the base plate. A limit hole is opened on the side of the bottom of the connecting block corresponding to the limit block, and the limit block is arranged inside the limit hole.

[0019] In a possible implementation, four mounting holes are opened on the top of the base plate, and the four mounting holes are respectively distributed at the four corners of the base plate.

[0020] The beneficial effects of this application are:

[0021] In this solution, an air pump is used to transport gas to the inside of the hollow plate through the air pipe. The growth of gas pushes the two sealing plates outward, and the sealing plates then drive the inner grinding plate to contact the inner wall of the stainless steel pipe. The addition of gas can make the sealing plate more evenly stressed, and the inner grinding plate can be made into a whole, so as to achieve the effect of fully grinding the stainless steel pipe, improve the grinding efficiency, and avoid the situation where the inner grinding plate is not fully ground or even damaged due to pressure imbalance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is the front view of the three-jaw chuck of the present utility model;

[0024] Figure 3 This is a side view of the hollow plate of the utility model;

[0025] Figure 4 This is a top cross-sectional view of the hollow slab of the present utility model;

[0026] Figure 5 For the utility model Figure 4 Enlarged view of part A.

[0027] Figure numerals: 1. Base plate; 2. Hollow plate; 3. Through hole; 4. Inner grinding plate; 5. Sealing plate; 6. Sealing strip; 7. Spring; 8. Support plate; 9. Air pump; 10. Air pipe; 11. Fixed bracket; 12. First electric push rod; 13. Outer grinding plate; 14. Mounting cylinder; 15. Three-jaw chuck; 16. Mounting plate; 17. Servo motor; 18. Second electric push rod; 19. Connecting block; 20. Limit block; 21. Limit hole; 22. Mounting hole. DETAILED DESCRIPTION

[0028] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0029] This embodiment introduces the specific structure of a grinding device for stainless steel pipe processing. Figure 1-Figure 5As shown, it includes a base plate 1, a fixing piece for clamping and fixing the stainless steel pipe is installed on the top of the base plate 1, and an internal processing piece for grinding the inner wall of the stainless steel pipe is provided on the front side of the fixing piece, and an external processing piece for grinding the outer part of the stainless steel pipe is provided on the outside of the internal processing piece; the internal processing piece includes a hollow plate 2 provided on the top of the base plate 1, through holes 3 are opened at both ends of the hollow plate 2, and internal grinding plates 4 are installed inside the two through holes 3, and sealing plates 5 are installed on the side where the two internal grinding plates 4 are close to each other, and the external side of the sealing plates 5 is in contact with the inner wall of the hollow plate 2, and a sealing strip 6 is embedded on the external side of the sealing plates 5, and a plurality of springs 7 distributed at intervals are installed on the front and rear ends and the side away from each other of the two sealing plates 5, and the end of the spring 7 away from the sealing plate 5 is fixed to the inner wall of the hollow plate 2;

[0030] Among them, the front end of the hollow plate 2 is provided with a support plate 8 installed on the top of the base plate 1, and an air pump 9 is installed on the front side of the support plate 8. The top of the air pump 9 is connected to the air pipe 10, and the top of the air pipe 10 passes through the support plate 8 and the hollow plate 2 in sequence and extends to the inside of the hollow plate 2. When in use, the staff uses the three-jaw chuck 15 to install and fix the stainless steel pipe, and then starts the air pump 9 to transport the gas to the inside of the hollow plate 2 through the air pipe 10, and then pushes the two sealing plates 5 outward by the growth of the gas. The sealing plate 5 then drives the inner grinding plate 4 to contact the inner wall of the stainless steel pipe. At the same time, the first electric push rod 12 drives the outer grinding plate 13 to contact the outside of the stainless steel pipe, so that the inside and outside of the stainless steel pipe can achieve the effect of grinding processing;

[0031] At the same time, the servo motor 17 is started to drive the stainless steel pipe fixed by the three-jaw chuck 15 on the mounting cylinder 14 to rotate, so that the stainless steel pipe can repeatedly contact the inner grinding plate 4 and the outer grinding plate 13 to achieve grinding processing. At the same time, the second electric push rod 18 is retracted to drive the mounting plate 16 to move forward, so that the stainless steel pipe can be gradually sleeved on the outside of the hollow plate 2, so that the inner grinding plate 4 and the outer grinding plate 13 can fully grind the stainless steel pipe inside and outside;

[0032] After the processing is completed, the air pump 9 discharges the gas in the hollow plate 2 through the air pipe 10, so that the closing plate 5 can drive the inner grinding plate 4 to move inward by the rebound force of the spring 7, so as to facilitate the subsequent grinding of stainless steel pipes with different diameters. In addition, by replenishing the gas, the closing plate 5 can be subjected to more balanced force, and the inner grinding plate 4 can be made into a whole, so as to achieve the effect of fully grinding the stainless steel pipe and avoid the situation where the inner grinding plate 4 is not fully ground or even damaged due to pressure imbalance.

[0033] Secondly, the length of the inner grinding plate 4 is equal to the length of the through hole 3, and the length of the sealing plate 5 is greater than the length of the inner grinding plate 4, so that the sealing plate 5 can limit the inner grinding plate 4, ensure the stability of the inner grinding plate 4, and prevent the inner grinding plate 4 from detaching from the hollow plate 2.

[0034] Furthermore, the external processing part includes a fixed bracket 11 which is sleeved on the outside of the rear end of the hollow plate 2, and the bottoms of both ends of the fixed bracket 11 are fixed to the top of the base plate 1. A first electric push rod 12 is installed on the top of the inner cavity of the fixed bracket 11, and an outer grinding plate 13 is installed on the bottom end of the first electric push rod 12. The outer grinding plate 13 is driven downward by the extension of the first electric push rod 12, so that the outer grinding plate 13 can contact the outside of the stainless steel pipe, thereby achieving the effect of grinding the outside of the stainless steel pipe.

[0035] Furthermore, the fixing part includes a mounting tube 14 provided at the top of the rear end of the base plate 1, and a three-jaw chuck 15 for fixing the stainless steel pipe is installed inside the front end of the mounting tube 14. The stainless steel pipe is clamped and fixed by the three-jaw chuck 15 on the mounting tube 14 to ensure the stability of the stainless steel pipe during grinding and avoid skewing and shaking. In addition, a mounting plate 16 is provided at the rear end of the mounting tube 14, and the rear end of the mounting tube 14 is fixed to the front side of the mounting plate 16 through a rotating shaft; a servo motor 17 is installed on the rear side of the top end of the mounting plate 16, and the output shaft of the servo motor 17 passes through the mounting plate 16 and is fixed to the rotating shaft on the mounting tube 14, so that the servo motor 17 can drive the mounting tube 14 to drive the stainless steel pipe fixed by the three-jaw chuck 15 to rotate, so that the stainless steel pipe can be ground by the inner grinding plate 4 and the outer grinding plate 13.

[0036] In addition, two second electric push rods 18 are installed on the top of the base plate 1. The two second electric push rods 18 are symmetrically distributed about the central axis of the base plate 1. A connecting block 19 for connecting to the mounting plate 16 is installed at the rear end of the second electric push rods 18. The two second electric push rods 18 are arranged inside the bottom end of the fixed bracket 11. By connecting the connecting block 19 to the mounting plate 16, when the second electric push rods 18 retract, the connecting block 19 can be driven to drive the mounting plate 16 to move forward and backward, thereby achieving the effect of conveniently adjusting the position of the stainless steel pipe;

[0037] At the same time, because the two second electric push rods 18 are each provided with a limit block 20 on the side away from each other, and the limit block 20 is installed on the top of the base plate 1, a limit hole 21 is provided on the side of the bottom of the connecting block 19 corresponding to the limit block 20, and the limit block 20 is arranged inside the limit hole 21, so that the limit block 20 can achieve the effect of guiding and limiting the connecting block 19 by engaging with the limit hole 21, thereby ensuring the stability of the mounting plate 16 during displacement. At the same time, four mounting holes 22 are provided on the top of the base plate 1, and the four mounting holes 22 are respectively distributed at the four corners of the base plate 1, so that the staff can install the base plate 1 to a suitable position through the mounting holes 22.

[0038] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A grinding device for stainless steel pipe processing, characterized in that: include: Bottom plate (1); A fixing piece for clamping and fixing the stainless steel pipe is installed on the top of the base plate (1), and an inner processing piece for grinding the inner wall of the stainless steel pipe is provided on the front side of the fixing piece, and an outer processing piece for grinding the outer surface of the stainless steel pipe is provided on the outside of the inner processing piece; The inner processing part comprises a hollow plate (2) arranged on the top of the bottom plate (1), through holes (3) are opened at both ends of the hollow plate (2), inner grinding plates (4) are installed inside the two through holes (3), sealing plates (5) are installed on the sides of the two inner grinding plates (4) close to each other, and the outside of the sealing plates (5) is in contact with the inner wall of the hollow plate (2), and a sealing strip (6) is embedded on the outside of the sealing plates (5), and a plurality of springs (7) distributed at intervals are installed at the front and rear ends of the two sealing plates (5) and the side away from each other, and the end of the spring (7) away from the sealing plate (5) is fixed to the inner wall of the hollow plate (2); The front end of the hollow plate (2) is provided with a support plate (8) mounted on the top of the base plate (1), and an air pump (9) is mounted on the front side of the support plate (8). The top end of the air pump (9) is connected to an air pipe (10), and the top end of the air pipe (10) passes through the support plate (8) and the hollow plate (2) in sequence and extends into the interior of the hollow plate (2).

2. A grinding device for stainless steel pipe processing according to claim 1, characterized in that: The length of the inner grinding plate (4) is equal to the length of the through hole (3), and the length of the sealing plate (5) is greater than the length of the inner grinding plate (4).

3. A grinding device for stainless steel pipe processing according to claim 1, characterized in that: The externally processed part comprises a fixed bracket (11) sleeved on the outside of the rear end of the hollow plate (2), and the bottoms of both ends of the fixed bracket (11) are fixed to the top of the base plate (1), a first electric push rod (12) is installed on the top of the inner cavity of the fixed bracket (11), and an outer grinding plate (13) is installed on the bottom end of the first electric push rod (12).

4. A grinding device for stainless steel pipe processing according to claim 1, characterized in that: The fixing member comprises a mounting cylinder (14) arranged on the top of the rear end of the base plate (1), and a three-jaw chuck (15) for fixing the stainless steel pipe is installed inside the front end of the mounting cylinder (14).

5. A grinding device for stainless steel pipe processing according to claim 4, characterized in that: The rear end of the mounting cylinder (14) is provided with a mounting plate (16), and the rear end of the mounting cylinder (14) is fixed to the front side of the mounting plate (16) via a rotating shaft; A servo motor (17) is installed on the rear side of the top end of the mounting plate (16). The output shaft of the servo motor (17) passes through the mounting plate (16) and is fixed to the rotating shaft on the mounting cylinder (14).

6. A grinding device for stainless steel pipe processing according to claim 5, characterized in that: Two second electric push rods (18) are installed on the top of the base plate (1), and the two second electric push rods (18) are symmetrically distributed about the central axis of the base plate (1). A connecting block (19) for connecting to the mounting plate (16) is installed at the rear end of the second electric push rods (18). The two second electric push rods (18) are arranged inside the bottom end of the fixed bracket (11).

7. A grinding device for stainless steel pipe processing according to claim 6, characterized in that: A limiting block (20) is provided on the side away from each other of the two second electric push rods (18), and the limiting block (20) is installed on the top of the base plate (1). A limiting hole (21) is provided on the bottom of the connecting block (19) on a side corresponding to the limiting block (20), and the limiting block (20) is arranged inside the limiting hole (21).

8. The grinding device for stainless steel pipe processing according to claim 1, characterized in that: Four mounting holes (22) are provided on the top of the base plate (1), and the four mounting holes (22) are respectively distributed at the four corners of the base plate (1).

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