Steel pipe welding rib removing device

Abstract

The utility model relates to the field of steel pipe machining equipment, in particular to a steel pipe welding rib removing device which comprises an adjusting mechanism and a tool rest connected to the adjusting mechanism. The adjusting mechanism comprises a screw in the horizontal direction, a first screw support, a screw in the vertical direction and a second screw support, the second screw support is arranged on the first screw support, the knife rest is arranged on the side face of the outer wall of the second screw support, the screw in the horizontal direction is screwed, the knife rest moves in the horizontal direction, the screw in the vertical direction is screwed, and the knife rest moves in the vertical direction. The knife rest moves in the vertical direction; and a blade of the scraper protrudes out of the bottom end of the knife rest and is aligned to a welding rib position on the outer wall of the steel pipe. The scraper has the advantages that the scraper rest of the scraper can move in the horizontal direction and the vertical direction, so that welding ribs can be scraped conveniently.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing equipment, and in particular to a device for removing weld beads from steel pipes. Background Technology

[0002] In the production process of steel pipes, steel plates or coiled steel strips need to be unrolled, their surfaces are rolled to form a pipe blank, and a longitudinal seam is formed on the pipe blank. The seam is then welded using high-frequency welding equipment to form a steel pipe. However, the weld beads produced by welding on the steel pipe will protrude from the outer surface of the steel pipe. This not only affects the smoothness of the outer wall of the steel pipe, but also affects the aesthetics of the steel pipe, and the weld beads need to be removed.

[0003] In the prior art, patent publication number CN 106180903A discloses a device for removing the outer weld bead of high-frequency steel pipe, including a base, a support plate, a fixed knife holder, and a scraper. The blade of the scraper is perpendicular to the support plate, the lower end of the scraper extends from the bottom of the knife holder, and the bottom of the scraper has a cutting edge. The support device includes a tray and a cylinder. This technology removes the outer weld bead of the steel pipe by scraping it.

[0004] The technical problem mentioned above is that when the diameter of the tube blank changes or the position of the straight seam on the tube blank changes, the support device needs to be adjusted in the horizontal direction to ensure that the blade of the scraper is aligned with the top of the seam, so as to facilitate the removal of the outer weld bead. However, the support device is a stable support for the tube blank and is usually fixed on the ground. This makes it inconvenient to move the support device when it needs to be adjusted in the horizontal direction, thereby reducing the efficiency of the removal of the outer weld bead of the steel pipe. Utility Model Content

[0005] To solve the above problems, this utility model provides a device for removing weld beads from steel pipes.

[0006] The technical solution of this utility model is: a device for removing weld beads from steel pipes, including an adjusting mechanism and a knife holder connected to the adjusting mechanism. The adjusting mechanism is set on a support plate arranged vertically. The adjusting mechanism includes a horizontal screw and a screw support, and a vertical screw and a screw support. The screw support is mounted on the screw support. The knife holder is mounted on the outer side of the screw support. By turning the horizontal screw, the knife holder can be moved horizontally, and by turning the vertical screw, the knife holder can be moved vertically. A scraper is fixed on the knife holder, and the blade of the scraper protrudes from the bottom of the knife holder and is aligned with the weld bead position on the outer wall of the steel pipe.

[0007] Furthermore, to improve the replacement speed of the scraper when it wears out or needs to be replaced, a blade limiting block is provided on the outside of the blade holder. The blade limiting block has a vertical blade groove. After the scraper passes through the blade groove, one end of the blade is aligned with the weld bead of the steel pipe, and the other end of the scraper extends out of the blade groove. A fixing bolt is provided on the side of the blade limiting block. The fixing bolt passes through the blade limiting block to the blade groove and abuts against the scraper.

[0008] Furthermore, to facilitate the horizontal or vertical movement of the adjustment mechanism, a turntable is provided at the top of the horizontal screw and the top of the vertical screw, respectively.

[0009] Furthermore, a gate seat is installed at the top of the screw support, and one end of the gate rod passing through the gate seat is connected to the screw, while the other end is connected to the gate handle.

[0010] Furthermore, in order to collect and gather the scraped weld beads and improve the cleanliness of the working environment, an adjustment mechanism is connected to the upper part of the support plate, and a weld bead groove is connected to the lower part of the support plate. The direction of the weld bead groove is consistent with the direction of the steel pipe. A protrusion is provided on the rear side of the weld bead groove, and the weld bead groove is slidably connected to the sliding groove provided on the lower part of the support plate through the protrusion.

[0011] The beneficial effects of this utility model are as follows: In the production of steel pipes, if the inner diameter of the steel pipe changes or the position of the pipe blank seam changes, by setting an adjustment mechanism and a tool holder, the tool holder can be moved in the horizontal and vertical directions. After the tool holder is moved, it can be located directly above the seam of the pipe blank, and the scraping of weld beads can be carried out without moving the large steel pipe support mechanism.

[0012] The scraper is fixed to the limit block by the scraper groove. When the scraper is worn or damaged due to scraping the weld beads, the scraper can be moved up and down in the scraper groove by turning the fixing bolt that abuts against the scraper. At this time, the old scraper can be taken out and replaced with a new scraper to facilitate the removal of weld beads from the steel pipe.

[0013] Welding bead grooves are provided at the bottom of the support plate. After the scraper removes the welding bead, it falls downwards and is caught by the welding bead grooves that correspond to the scraper position. The welding bead can be collected through the welding bead grooves, avoiding a messy and polluted working environment. The welding bead grooves and the support plate are slidably connected, which facilitates the cleaning and replacement of the welding bead grooves. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the steel pipe weld bar removal device of this utility model;

[0015] In the picture:

[0016] 1. Screw bracket 101; 2. Turntable 1; 3. Screw bracket 2

[0017] 201. Screw 2; 202. Turntable 2; 3. Support plate

[0018] 4. Scraper 401, blade holder; 5. Blade limiting block

[0019] 501, Fixing Bolt; 6, Welding Bead Groove; 7, Gate Seat

[0020] 701. Gate arm; 702. Gate handle; 703. Pressure block

[0021] 704, Press Platform A, Steel Pipe Detailed Implementation

[0022] Example 1

[0023] A steel pipe weld bead removal device includes an adjustment mechanism and a tool holder 401 connected to the adjustment mechanism. A support plate is vertically arranged on one side of the steel pipe A. The adjustment mechanism is set on the support plate. The adjustment mechanism includes a horizontal screw rod and screw support 1, and a vertical screw rod 201 and screw support 2. Screw support 1 is fixed on the support plate 3. The screw rod passes through the screw support 1 and its top is set outside the screw support 1. It can be moved horizontally by twisting. Screw support 2 is set on the screw support 1. Screw support 2 is connected to screw rod 1 through screw support 1. When screw rod 1 moves horizontally, screw support 2 moves horizontally accordingly.

[0024] One side of the screw support 2 is connected to the screw support 1, and the other side is connected to the tool holder 401. The screw 201 passes through the screw support 2 and its top is set outside the screw support 2. The tool holder 401 is connected to the screw 201 through the screw support 2. When the vertical screw 201 is turned, the tool holder 401 can move in the vertical direction. A scraper 4 is fixed on the tool holder 401. The blade of the scraper 4 protrudes from the bottom end of the tool holder 401 and is aligned with the weld bead position on the outer wall of the steel pipe A.

[0025] Furthermore, a cylindrical blade limiting block 5 is provided on the outside of the blade holder 401. One circular surface of the cylindrical blade limiting block 5 is fixed to the outside of the blade holder 401. A blade groove is provided in the vertical direction of the curved surface of the cylindrical blade limiting block 5. The width of the blade groove is greater than the width of the scraper 4. After the scraper 4 passes through the blade groove, one end of the blade is aligned with the weld bead position of the steel pipe A. The other end of the scraper 4 extends out of the top of the blade groove. A fixing bolt 501 is provided on the other circular surface of the blade limiting block 5. The fixing bolt 501 passes through the blade limiting block 5 to the blade groove and abuts against the scraper 4 to assist in fixing the scraper 4. When the fixing bolt 501 is loosened, the scraper 4 can be easily pulled out from the blade limiting block 5 to realize the replacement of the scraper 4.

[0026] Furthermore, a turntable 101 is installed at the top of screw 1, and a turntable 202 is installed at the top of screw 201, which makes it easier to turn the screws.

[0027] Furthermore, the upper part of the support plate 3 is connected to the adjustment mechanism, and the lower part of the support plate 3 is connected to the weld bar groove 6. The direction of the weld bar groove 6 is consistent with the direction of the steel pipe A. The rear side of the weld bar groove 6 is provided with strip-shaped protrusions. The weld bar groove 6 is slidably connected to the slide rail provided at the lower part of the support plate 3 through the protrusions.

[0028] In production, changes in the inner diameter of steel pipe A are common. Therefore, in daily work, it is often necessary to rotate turntable 202 to change the position of screw 201, thereby adjusting the vertical position of the tool holder 401 and facilitating the position adjustment of scraper 4. When the steel strip forms a tube blank and the seam on the tube blank is not in the same position as before, the position of screw 1 is changed by rotating turntable 101, thereby adjusting the horizontal position of tool holder 401. The blade of scraper 4 adopts a concave arc shape, which abuts against the weld seam of steel pipe A and is adapted to the curved surface of steel pipe A. During the scraping process, the impact of steel pipe A on the blade during movement can be effectively reduced, reducing the risk of scraper damage.

[0029] Example 2

[0030] In daily production, steel strips are transported by conveying equipment and then surface-rolled to form tube blanks. The tube blanks are then transported by conveying equipment to the high-frequency welding area to form steel pipe A. Steel pipe A is then transported by conveying equipment to the weld bead removal device for weld bead removal. During transportation, the weld beads on steel pipe A are scraped off by the blade of scraper 4. To ensure that all weld beads on steel pipe A are scraped off and to avoid downtime due to damage to scraper 4, two adjustment mechanisms, a blade holder 401, and scraper 4 can be installed side by side on the support plate 3. When one scraper 4 is working, the other scraper 4 is suspended above the weld beads on steel pipe A. When the working scraper is damaged, the spare scraper 4 is lowered to continue the weld bead removal work.

[0031] A gate seat 7 is fixedly installed at the top of the screw support 1. One end of the gate rod 701 passing through the gate seat 7 is connected to the vertical screw 201, and the other end is connected to the gate handle 702. The gate rod 701 and the screw 201 are connected by a pressure block 703. A pressure platform 704 is also provided on the screw 201 near the pressure block 703. By turning the gate handle 702 up and down, the gate rod 701 rotates in the horizontal direction. After the pressure block 703 flips and presses against the pressure platform 704, the screw 201 moves downward under force. At this time, the knife post 401... As it falls, the scraper 4 blade lands precisely on the weld bead of the steel pipe A. When the steel pipe A is being transported, the scraper 4 can remove the weld bead. The thread on the screw rod 201 after falling can contact the corresponding thread in the screw rod bracket 2, and the up and down position of the tool holder 401 can be adjusted by rotating the turntable 202 on the screw rod 201. After the weld bead removal work on the steel pipe A is completed, the brake handle 702 is raised too high. At this time, the pressure block 703 no longer applies force to the pressure table 704, and the screw rod 201 and the tool holder 401 rise simultaneously, completing the weld bead scraping process.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A device for removing weld beads from steel pipes, characterized in that: The device includes an adjustment mechanism and a tool holder connected to the adjustment mechanism. The adjustment mechanism is mounted on a vertically distributed support plate. The adjustment mechanism includes a horizontal screw and a screw support, and a vertical screw and a screw support. The screw support is mounted on the screw support. The tool holder is mounted on the outer side of the screw support. Twisting the screw causes the tool holder to move horizontally, and twisting the screw causes it to move vertically. A scraper is fixed on the tool holder, with the blade protruding from the bottom of the tool holder and aligned with the weld bead position on the outer wall of the steel pipe.

2. The steel pipe weld bead removal device according to claim 1, characterized in that: The outer side of the blade holder is provided with a blade limiting block, and the blade limiting block has a vertical blade groove. After the scraper passes through the blade groove, one end of the blade is aligned with the weld bead of the steel pipe, and the other end of the scraper extends out of the blade groove. A fixing bolt is provided on the side of the blade limiting block. The fixing bolt passes through the blade limiting block to the blade groove and abuts against the scraper.

3. The steel pipe weld bead removal device according to claim 1, characterized in that: A turntable is provided at the top end of the first screw, and a turntable is provided at the top end of the second screw.

4. The steel pipe weld bead removal device according to claim 1, characterized in that: The upper part of the support plate is connected to an adjustment mechanism, and the lower part of the support plate is connected to a weld bar groove. The direction of the weld bar groove is consistent with the direction of the steel pipe. A protrusion is provided on the rear side of the weld bar groove, and the weld bar groove is slidably connected to the slide groove provided on the lower part of the support plate through the protrusion.

5. The steel pipe weld bead removal device according to claim 1, characterized in that: A gate seat is provided at the top of the screw support, and one end of the gate rod passing through the gate seat is connected to the screw, and the other end is connected to the gate handle.

6. The steel pipe weld bead removal device according to claim 1, characterized in that: The blade is designed to be concave and arc-shaped, and it abuts against the weld of the steel pipe.

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