Reciprocating type polishing device for stainless steel pipe machining

Abstract

The utility model relates to the field of stainless steel tube machining, in particular to a reciprocating type polishing device for stainless steel tube machining, which comprises a polishing table, and three groups of tubular polishing seats are sequentially mounted above the polishing table. The rotating shaft and the butt joint cylinder are in butt joint in the stainless steel pipe, the motor drives the rotating shaft and the butt joint cylinder to rotate, the stainless steel pipe is polished between the upper tubular polishing seat and the lower tubular polishing seat, the outer portion of the stainless steel pipe can be fixed through the upper tubular polishing seat and the lower tubular polishing seat, and the rotating shaft can rotate in the stainless steel pipe. The inner wall of the stainless polished pipe can be polished through the two sets of movable seats, the two sets of movable seats can synchronously move to generate the reciprocating motion effect, reciprocating motion polishing can be conducted on the interior and the exterior of the stainless polished pipe through the structure, polishing paste can be automatically injected in the polishing process, and the polishing efficiency is improved. And the problem of single-point excessive polishing can be effectively avoided through reciprocating motion polishing, so that the influence on the quality of the stainless steel pipe is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe processing, specifically to a reciprocating polishing device for stainless steel pipe processing. Background Technology

[0002] Stainless steel pipes are pipes made from stainless steel as the base material through processes such as cold rolling, cold drawing, or hot rolling. They possess excellent corrosion resistance, mechanical properties, and processing performance. During the processing of stainless steel pipes, polishing is an important process to improve their surface quality, aesthetics, and corrosion resistance.

[0003] A search revealed a utility model patent with publication number CN204639883U, which discloses a stainless steel pipe polishing device. The device includes a base with a rotating mechanism for clamping one end of the stainless steel pipe and a steel pipe support mechanism for clamping the other end. Polishing components are slidably connected to the base along the axial direction of the stainless steel pipe. These polishing components include a feed base and a left polishing wheel, a right polishing wheel, an upper polishing wheel, and a lower polishing wheel connected to the feed base and rotated by a motor. The left and right polishing wheels are clamped on the left and right sides of the stainless steel pipe, respectively, while the upper and lower polishing wheels are clamped on the upper and lower sides, respectively. Each of the left, right, upper, and lower polishing wheels has an identical displacement structure for adjusting its distance from the stainless steel pipe. This utility model provides comprehensive polishing coverage for stainless steel pipes, high polishing quality, and stable axial feed during the polishing process.

[0004] In the polishing process of existing stainless steel pipes, due to their long column shape, traditional surface polishing methods cannot polish them. Only rotational polishing can be performed. However, fixed-point rotational polishing will cause wear on the surface, thus affecting the quality. Furthermore, in the current polishing process, only the surface is polished, and the inner wall is generally not polished. Since polishing is not only for ensuring aesthetics, but also for significantly improving corrosion resistance, the polishing of the inner wall is also particularly important.

[0005] Therefore, it is necessary to invent a reciprocating polishing device for stainless steel pipe processing to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a reciprocating polishing device for stainless steel pipe processing. By fixing the stainless steel pipe inside and out in sequence, a rotating shaft can be realized to rotate inside it and drive it to rotate between tubular polishing seats. During the rotation, it performs reciprocating motion, thereby achieving the effect of polishing the stainless steel pipe inside and out, so as to solve the problems of easy surface damage and difficult internal polishing when polishing stainless steel pipes in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a reciprocating polishing device for processing stainless steel pipes, comprising a polishing table, three sets of tubular polishing seats are sequentially installed above the polishing table, a lower pressure seat is provided above the polishing table, and two sets of hydraulic rods are sequentially and symmetrically installed between the lower pressure seat and the polishing table, and two sets of tubular polishing seats are also sequentially installed below the lower pressure seat, with the upper tubular polishing seats and the lower tubular polishing seats arranged in an alternating manner;

[0008] The internal and external polishing assembly, located above the polishing table, includes a screw rod rotatably connected to the polishing table. A servo motor is mounted on one side of the polishing table, and the output end of the servo motor is connected to the screw rod shaft. Guide rods are mounted on both sides of the screw rod above the polishing table. A movable seat is located above the polishing table, and an internal threaded block is mounted below the movable seat and screwed to the screw rod. Guide seats are mounted on both sides of the internal threaded block below the movable seat, and the guide seats are connected through to the corresponding guide rods. This structure has two sets of components arranged above the polishing table with the polishing table as the central axis.

[0009] The polishing paste application assembly disposed within the tubular polishing seat includes a connecting cavity. A tapered hole is formed on the inner wall of the connecting cavity. A tapered block is inserted through and fitted into the tapered hole. A spring rod is installed between the tapered block and the inner wall of the connecting cavity away from the tapered hole.

[0010] Preferably, the inner and outer tube polishing assembly further includes a rotating shaft, which is rotatably connected to the inner wall of the movable seat, and the rotating shaft and the center of the lower tubular polishing seat are at the same horizontal position.

[0011] Preferably, multiple polishing discs are sequentially sleeved and fixed on the rotating shaft, and an extrusion block is fixedly connected to one end of each rotating shaft near the lower tubular polishing seat.

[0012] Preferably, multiple sets of docking cylinders are rotatably connected to the inner wall of the opposing movable seat, and the docking cylinders are at the same horizontal position as the center of the lower tubular polishing seat. Multiple sets of motors are installed in sequence on the opposing movable seat, and the motor output ends are shaft-connected to the corresponding docking cylinders.

[0013] Preferably, the inner wall of the docking cylinder near the lower tubular polishing seat has multiple sets of through holes in an annular shape. Each through hole is connected to a fixing block. A connecting ring is sleeved on the fixing block and is slidably connected to the inner wall of the through hole. A return spring is sleeved on the fixing block and its two sides are respectively attached to the connecting ring and the inner wall of the through hole.

[0014] Preferably, the polishing compound application assembly further includes a pressure storage tank, which is installed above the lower pressure seat and is internally connected to each set of connecting cavities, and contains polishing compound.

[0015] Preferably, a second conical block is provided inside the rotating shaft, and the second conical block is installed inside the rotating shaft in the same way. The installation direction of the second conical block is opposite to that of the first conical block, and the pushing direction of the spring rod of the second conical block is also opposite to that of the spring rod of the first conical block.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] The stainless steel tube is brought into contact with the upper and lower tubular polishing seats. The two sets of moving seats then align inside the stainless steel tube, fixing the rotating shaft and connecting cylinder to the inner wall. A motor drives both to rotate, polishing the stainless steel tube between the upper and lower tubular polishing seats. As the upper and lower tubular polishing seats continue to move closer, the exterior of the stainless steel tube is fixed. The rotating shaft and connecting cylinder then rotate inside the stainless steel tube, polishing its inner wall. During polishing, the two sets of moving seats move synchronously, creating a reciprocating motion. This structure allows for reciprocating polishing of the stainless steel tube's interior and exterior, with automatic application of polishing compound. The reciprocating motion also effectively avoids over-polishing at single points, thus preventing damage to the stainless steel tube's quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the layout structure of the upper tubular fixing seat of this utility model;

[0021] Figure 3 This is a schematic diagram of the planing structure of the lower pressure seat of this utility model;

[0022] Figure 4 This is a schematic diagram of the polishing disc structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the planing structure of the docking cylinder of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure between the movable seat and the internal threaded block of this utility model;

[0025] Figure 7 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 001 Polishing table; 101 Lower pressure seat; 102 Hydraulic rod; 103 Tubular polishing seat; 002 Internal and external polishing assembly; 201 Screw; 202 Servo motor; 203 Guide rod; 204 Moving seat; 205 Internal thread block; 206 Rotating shaft; 207 Polishing disc; 208 Extrusion block; 209 Connecting cylinder; 210 Through hole; 211 Fixing block; 212 Connecting ring; 213 Return spring; 214 Motor; 215 Guide seat; 003 Polishing paste filling assembly; 301 Connecting cavity; 302 Spring rod; 303 Conical block one; 304 Conical hole; 305 Pressure storage tank; 306 Conical block two. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-7 The reciprocating polishing device for processing stainless steel pipes shown includes a polishing table 001, three sets of tubular polishing seats 103 are installed sequentially above the polishing table 001, a lower pressure seat 101 is provided above the polishing table 001, and two sets of hydraulic rods 102 are symmetrically installed between the lower pressure seat 101 and the polishing table 001. Two sets of tubular polishing seats 103 are also installed sequentially below the lower pressure seat 101, and the upper tubular polishing seats 103 and the lower tubular polishing seats 103 are arranged in an alternating manner.

[0030] The hydraulic rod 102 can bring the lower pressure seat 101 closer to the polishing table 001, thereby bringing the upper tubular polishing seat 103 and the lower tubular polishing seat 103 closer together and fitting against the surface of the stainless steel tube. Through the staggered arrangement, when the stainless steel tube is reciprocated, the surface of the stainless steel tube can be polished in an overall manner. The tubular polishing seat 103 is provided with polishing cotton, but is not limited to polishing cotton.

[0031] The internal and external polishing assembly 002, located above the polishing table 001, includes a screw 201 rotatably connected to the polishing table 001. A servo motor 202 is mounted on one side of the polishing table 001, and the output end of the servo motor 202 is shaft-connected to the screw 201. Guide rods 203 are mounted on both sides of the screw 201 above the polishing table 001. A movable seat 204 is located above the polishing table 001. An internal thread block 205 is mounted below the movable seat 204 and screwed to the screw 201. Guide seats 215 are mounted on both sides of the internal thread block 205 below the movable seat 204 and are connected through the corresponding guide rod 203. This structure has two sets of such components above the polishing table 001 with the polishing table 001 as the central axis.

[0032] The servo motor 202 drives the screw 201 to rotate, and the internal thread block 205 drives the upper movable seat 204 to move. The cooperation of the guide rod 203 and the guide seat 215 enables the movable seat 204 to operate stably. The two sets of movable seats 204 can be brought together to fix the stainless steel pipe. After fixing, the two sets of servo motors 202 can be controlled simultaneously to make the movable seats 204 move synchronously, thereby realizing the reciprocating motion of the stainless steel pipe as a whole.

[0033] The polishing paste application assembly 003 disposed within the tubular polishing seat 103 includes a connecting cavity 301. A tapered hole 304 is provided on the inner wall of the connecting cavity 301, and the tapered hole 304 communicates with the inner wall of the tubular polishing seat 103. A tapered block 303 is connected and fitted through the tapered hole 304. A spring rod 302 is installed between the tapered block 303 and the inner wall of the connecting cavity 301 away from the tapered hole 304.

[0034] The spring rod 302 can make the conical block 303 fit tightly against the conical hole 304. When the tubular polishing seat 103 moves and fits against the surface of the stainless steel tube, it will squeeze the conical block 303, thereby creating a gap between it and the conical hole 304, thus exposing the polishing paste inside, which facilitates subsequent polishing.

[0035] Furthermore, in the above structure, the inner and outer tube polishing assembly 002 also includes a rotating shaft 206, which is rotatably connected to the inner wall of the movable seat 204, and the rotating shaft 206 and the center of the lower tubular polishing seat 103 are at the same horizontal position.

[0036] By moving the movable seat 204, the rotating shaft 206 can pass through the inside of the stainless steel tube in the lower tubular polishing seat 103.

[0037] Furthermore, in the above structure, multiple polishing discs 207 are sequentially sleeved and fixed on the rotating shaft 206, and an extrusion block 208 is fixedly connected to one end of each rotating shaft 206 near the lower tubular polishing seat 103.

[0038] The inner wall of the stainless steel pipe can be polished using polishing disc 207.

[0039] Furthermore, in the above structure, multiple sets of docking cylinders 209 are rotatably connected to the inner wall of the opposing moving seat 204, and the docking cylinders 209 and the center of the lower tubular polishing seat 103 are at the same horizontal position. Multiple sets of motors 214 are installed in sequence on the opposing moving seat 204, and the output end of the motor 214 is axially connected to the corresponding docking cylinder 209.

[0040] The motor 214 can drive the docking cylinder 209 to rotate independently, and the docking cylinder 209 can enter the stainless steel tube under the action of the moving seat 204.

[0041] Furthermore, in the above structure, multiple sets of through holes 210 are formed in a ring on the inner wall of the end of the docking cylinder 209 near the lower tubular polishing seat 103. A fixing block 211 is connected through each through hole 210. A connecting ring 212 is sleeved on the fixing block 211, and the connecting ring 212 is slidably connected to the inner wall of the through hole 210. A return spring 213 is sleeved on the fixing block 211, and the two sides of the return spring 213 are respectively attached to the connecting ring 212 and the inner wall of the through hole 210.

[0042] The fixed block 211 can be kept in position within the docking cylinder 209 by the cooperation of the return spring 213 and the connecting ring 212. When the pressing block 208 enters the docking cylinder 209, the fixed block 211 can be moved outward to contact the inside of the stainless steel tube and fix the stainless steel tube. At this time, the stainless steel tube can be polished between the tubular polishing seats 103 by the rotation of the motor 214. When the upper and lower tubular polishing seats 103 continue to move closer to each other, the force on the outside of the stainless steel tube is greater than the force of the fixed block 211, which can enable the rotating shaft 206 to drive the polishing disc 207 to rotate and polish the inner wall of the stainless steel tube.

[0043] Furthermore, in the above structure, the polishing paste dispensing assembly 003 also includes a pressure storage tank 305, which is installed above the lower pressure seat 101 and is internally connected to each set of connecting cavities 301. The pressure storage tank 305 contains polishing paste.

[0044] The polishing compound can be delivered to each connecting cavity 301 through the pressure storage tank 305, thereby ensuring the normal progress of polishing.

[0045] Furthermore, in the above structure, a second conical block 306 is provided inside the rotating shaft 206, and the second conical block 306 is installed inside the rotating shaft 206 in the same way. The installation direction of the second conical block 306 is opposite to that of the first conical block 303, and the pushing direction of the spring rod 302 of the second conical block 306 is also opposite to that of the spring rod 302 of the first conical block 303.

[0046] By reversing the arrangement of the conical block 306, the conical block 306 will only deliver polishing compound when it moves outward, and the rotating shaft 206 will apply an outward centrifugal force during rotation, thereby realizing the delivery of polishing compound. The polishing compound in the rotating shaft 206 can be directly added into its interior without the need for pressure delivery.

[0047] The working principle of this practical application is as follows:

[0048] Refer to the instruction manual appendix Figure 1-7 By placing the steel pipe into the lower tubular polishing seat 103, the hydraulic rod 102 moves the lower pressure seat 101 downward, causing the upper and lower tubular polishing seats 103 to fit against the stainless steel pipe. Simultaneously, the activation of two servo motors 202 causes the moving seats 204 to move closer together, allowing the rotating shaft 206 to enter the stainless steel pipe. At the same time, the docking cylinder 209 can also enter the stainless steel pipe, causing the pressing block 208 to enter the docking cylinder 209 and press against the fixing block 211, making the fixing block 211 fit against the inner wall of the stainless steel pipe. Then, the rotation of the motor 214 causes the entire stainless steel pipe to rotate and polish between the tubular polishing seats 103. Simultaneously, the two servo motors 202... 02 Synchronous operation allows the stainless steel tube to undergo reciprocating motion polishing. After surface polishing is completed, the surface of the stainless steel tube can be pressed downward by the lower pressure seat 101, making the external fixing force greater than the fixing force of the fixing block 211. This causes the rotating shaft 206 and the docking cylinder 209 to rotate autonomously, allowing the polishing disc 207 to polish the inner wall of the stainless steel tube. This achieves reciprocating motion polishing of the inside of the stainless steel tube. This structure enables reciprocating motion polishing of the inside and outside of the stainless steel tube. Furthermore, polishing paste can be automatically added during the polishing process. The reciprocating motion polishing also effectively avoids the problem of over-polishing at a single point, thus preventing any impact on the quality of the stainless steel tube.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reciprocating polishing device for processing stainless steel pipes, comprising a polishing table (001), characterized in that: Three sets of tubular polishing seats (103) are installed sequentially above the polishing table (001). A lower pressure seat (101) is provided above the polishing table (001), and two sets of hydraulic rods (102) are symmetrically installed between the lower pressure seat (101) and the polishing table (001). Two sets of tubular polishing seats (103) are also installed sequentially below the lower pressure seat (101), and the upper tubular polishing seat (103) and the lower tubular polishing seat (103) are arranged in an alternating manner. The internal and external polishing assembly (002) located above the polishing table (001) includes a screw (201), which is rotatably connected above the polishing table (001). A servo motor (202) is installed on one side of the polishing table (001), and the output end of the servo motor (202) is axially connected to the screw (201). Guide rods (203) are installed on both sides of the screw (201) above the polishing table (001). A movable seat (204) is provided, and an internal thread block (205) is installed below the movable seat (204). The internal thread block (205) is screwed to the screw (201). Guide seats (215) are installed on both sides of the internal thread block (205) below the movable seat (204). The guide seats (215) are connected to the corresponding guide rods (203) through the guide. This structure has two sets of guide seats above the polishing table (001) with the polishing table (001) as the central axis. The polishing paste application assembly (003) disposed in the tubular polishing seat (103) includes a connecting cavity (301), a conical hole (304) is provided on the inner wall of the connecting cavity (301), a conical block (303) is connected through and fitted in the conical hole (304), and a spring rod (302) is installed between the conical block (303) and the inner wall of the connecting cavity (301) away from the conical hole (304).

2. The reciprocating polishing device for processing stainless steel pipes according to claim 1, characterized in that: The inner and outer tube polishing assembly (002) also includes a rotating shaft (206), which is rotatably connected to the inner wall of the movable seat (204) and the rotating shaft (206) is at the same horizontal position as the center of the lower tubular polishing seat (103).

3. The reciprocating polishing device for stainless steel pipe processing according to claim 2, characterized in that: Multiple polishing discs (207) are sequentially sleeved and fixed on the rotating shaft (206), and an extrusion block (208) is fixedly connected to one end of each rotating shaft (206) near the lower tubular polishing seat (103).

4. The reciprocating polishing device for processing stainless steel pipes according to claim 2, characterized in that: Multiple sets of docking cylinders (209) are rotatably connected to the inner wall of the opposing movable seat (204), and the docking cylinder (209) and the center of the lower tubular polishing seat (103) are at the same horizontal position. Multiple sets of motors (214) are installed in sequence on the opposing movable seat (204), and the output end of the motor (214) is axially connected to the corresponding docking cylinder (209).

5. The reciprocating polishing device for processing stainless steel pipes according to claim 4, characterized in that: The inner wall of the docking cylinder (209) near the lower tubular polishing seat (103) has multiple sets of through holes (210) arranged in a ring. Each through hole (210) is connected to a fixing block (211). A connecting ring (212) is sleeved on the fixing block (211), and the connecting ring (212) is slidably connected to the inner wall of the through hole (210). A return spring (213) is sleeved on the fixing block (211), and the two sides of the return spring (213) are respectively attached to the connecting ring (212) and the inner wall of the through hole (210).

6. The reciprocating polishing device for processing stainless steel pipes according to claim 1, characterized in that: The polishing paste application assembly (003) also includes a pressure storage tank (305), which is installed above the lower pressure seat (101) and is connected in a through manner to the interior of each set of connecting cavities (301). The pressure storage tank (305) contains polishing paste.

7. The reciprocating polishing device for processing stainless steel pipes according to claim 2, characterized in that: The rotating shaft (206) is provided with a second conical block (306), and the second conical block (306) is installed in the rotating shaft (206) in the same way. The installation direction of the second conical block (306) is opposite to that of the first conical block (303), and the pushing direction of the spring rod (302) of the second conical block (306) is also opposite to that of the spring rod (302) of the first conical block (303).

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