Planing and scraping rotary frame suitable for roller transition fillet modeling

Abstract

The utility model provides a planing and scraping rotary frame suitable for roller transition fillet modeling, and belongs to the technical field of casting equipment. The planing and scraping rotary frame comprises a support, an arm frame and a cantilever, the arm frame is assembled on a main shaft of the support through a shaft hole, the cantilever is assembled on the arm frame through an upper horizontal movable groove, a lower horizontal movable groove and corresponding fastening bolts, and a scraper and a scraper position driving device are arranged on the cantilever. According to the utility model, the circular motion of the scraper is ensured through positioning, so that the concentric arc shape can be ensured, the scraper moves downwards at an inclined angle of 45 degrees along the center of the scraper shape while doing the circular motion, the arc can be accurately scraped, and an operator can finish the operation only by doing the conventional circular motion, so that the efficiency is improved, the quality is ensured, and meanwhile, the manpower is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting equipment, and in particular relates to a scraping and rotating frame suitable for the transition fillet modeling of a rolling roller. Background Art

[0002] Sand casting is a metal casting process that uses non-reusable sand molds to form metal products of different shapes. It is one of the oldest metal casting methods and is used in various industries due to its adaptability and cost-effectiveness. It is also widely used in the production of rollers.

[0003] In the casting process of rolling mill rolls, the selection and preparation of molding sand are critical to ensuring the dimensional accuracy and surface quality of the castings.

[0004] There is often a transition fillet between the roller body and the roller neck. Currently, the molding of the molding sand in this area is mostly done manually with a scraper. The roundness of the fillet after molding cannot meet the standard, and there are problems such as inconsistent arc and radius of the same circle, non-circularity and non-concentricity, which seriously affect the quality of molding. Even due to inconsistent arc of the same circle, uneven stress after casting occurs, crack defects occur, and waste is generated.

[0005] Therefore, it is necessary to design a device that can ensure the accuracy and concentricity of the roller transition arc. Summary of the invention

[0006] The utility model aims to provide a planing and scraping rotary frame suitable for the transition fillet shaping of a rolling mill roll, which can process the molding sand at the transition part through the circular rotation of the scraper, ensure the accuracy and concentricity of the transition arc of the rolling mill roll, meet the quality requirements of the rolling mill roll shaping, and solve the problems existing in the technical background.

[0007] To achieve the above purpose, the technical solution of the utility model is: a scraping rotary frame suitable for the transition rounded corner shape of a roller, the key is that the scraping rotary frame includes a bracket, an arm and a cantilever.

[0008] The support comprises a positioning chassis and a main shaft.

[0009] The arm bracket comprises a mounting shaft, an axis hole arranged at the center of the mounting shaft, and a hollow mounting plate arranged at one side of the mounting shaft, wherein two sets of upper and lower limiting grooves are arranged on the mounting plate.

[0010] The cantilever includes a frame in the shape of a right-angled trapezoid, a scraper and a scraper position driving device arranged on the frame, and a pulley connected to the frame. Two sets of upper and lower horizontal movable grooves are arranged on the right-angle side of the frame, and the positions of the horizontal movable grooves correspond to the positions of the limit grooves.

[0011] The arm is assembled on the main shaft of the bracket through the axial hole. When working, the arm rotates 360° along the main shaft; the cantilever is installed on the mounting plate of the arm by inserting the right-angle side of the frame into the mounting plate, and the fastening bolts pass through two groups of limit grooves and two groups of horizontal movable grooves.

[0012] Furthermore, the bracket also includes a support rod, a height adjustment screw, a height adjustment bolt matching the height adjustment screw, and a load-bearing platform connected to the height adjustment screw. The support rod is connected to the positioning chassis, the height adjustment screw is inserted into the support rod, the main shaft is set on the load-bearing platform, and the diameter of the load-bearing platform is larger than the shaft hole.

[0013] Furthermore, the scraper position driving device includes a slide groove arranged at the top of the oblique side of the frame, a slide rod with a slider arranged on the top, a rod sleeve connecting the slide rod, an oblique groove passing through the frame, a feed rod assembled inside the oblique groove, a tool holder connected to the feed rod, and the scraper is fastened inside the tool holder.

[0014] The slide rod is limited in the slide groove by a slider; the slide rod and the feed rod are cross-arranged, a through rod groove is provided in the middle of the feed rod, and the slide rod passes through the rod groove; the rod sleeve moves horizontally, driving the slide rod to move horizontally along the slide groove, and the slide rod drives the feed rod, the tool holder and the scraper to move along the inclined groove.

[0015] Furthermore, a sliding groove is provided at the bottom of the oblique side of the frame, and a sliding head is provided at the bottom of the slide rod.

[0016] Furthermore, the sliding rod is perpendicular to the direction of the inclined groove; the cross-sectional shape of the sliding rod matches the shape of the rod groove; and the inclined groove forms an angle of 45 degrees with the bottom edge of the frame.

[0017] Furthermore, the pulley is connected to the frame through a long rod, four supporting wheels are arranged at the bottom of the pulley, a handle is arranged at the upper left end, and a telescopic rod is arranged at the right end, and the telescopic rod cooperates with the rod sleeve; the telescopic rod is assembled concentrically with the rod sleeve, and the telescopic rod can move freely horizontally in the rod sleeve.

[0018] When the operator uses the device, the pulley keeps making circular motion, the rod sleeve moves closer to the left, the slide rod is pulled to the left, and the feed rod moves down along a 45-degree angle in the inclined groove, so that the scraper moves downward along a 45-degree angle while making circular motion, ensuring that the right-angle molding sand is scraped away in circles by the rotation of the scraper until it completely becomes a knife-shaped arc, thus achieving rounded corner shaping.

[0019] The utility model has the following beneficial effects: by positioning the scraper to make circular motion, the arc can be ensured to be concentric with the center of the circle. While the scraper makes circular motion, it also moves downward at an angle of 45 degrees along the center of the blade, and can accurately scrape out the arc. The operator only needs to make conventional circular motion to complete the operation, which improves efficiency, ensures quality, and saves manpower. The device does not require other auxiliary control equipment, is simple and practical, and because the personnel are away from the tool, the safety of the personnel is ensured, and has high safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the assembly structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the support structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the arm structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the cantilever structure of the utility model;

[0024] Figure 5 This is a cross-sectional view of the utility model at the start of working;

[0025] Figure 6 It is a schematic diagram of the working state of the utility model.

[0026] In the figure: bracket 1, main shaft 1-1, load-bearing platform 1-2, height adjustment bolt 1-3, positioning chassis 1-4, support rod 1-5, height adjustment screw 1-6, arm 2, shaft hole 2-1, limit groove 2-2, fastening bolt 2-3, mounting shaft 2-4, mounting plate 2-5, support arm 2-6, cantilever 3, slide rod 3-1, slider 3-2, rod sleeve 3-3, slide groove 3-4, feed rod 3-5, tool holder 3-6, scraper 3-7, inclined groove 3-8, rod groove 3-9, movable groove 3-10, long rod 3-11, telescopic rod 3-12, handle 3-13, pulley 3-14, support wheel 3-15, frame 3-16, lower slide groove 3-17, mold box 4, molding sand 5, molding base 6. DETAILED DESCRIPTION

[0027] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0028] This embodiment proposes a scraping and rotating frame suitable for roller transition rounded corner shaping, see Figure 1 , including a bracket 1, an arm 2 and a cantilever 3.

[0029] See also Figure 2The bracket 1 includes a positioning chassis 1-4 and a main shaft 1-1. The positioning chassis 1-4 plays a bearing and positioning function, and a fixing bolt hole can be set on the positioning chassis 1-4 to firmly position the planing and scraping rotating frame.

[0030] In order to adjust the height, the bracket 1 also includes a support rod 1-5, a height adjustment screw 1-6, a height adjustment bolt 1-3 matching the height adjustment screw 1-6, and a load-bearing platform 1-2 connected to the height adjustment screw 1-6.

[0031] The support rod 1-5 is connected to the positioning chassis 1-4, the height adjustment screw 1-6 is inserted into the support rod 1-5, and the main shaft 1-1 is set on the bearing platform 1-2, and the diameter of the bearing platform 1-2 is larger than the shaft hole 2-1.

[0032] The support rod 1-5 is a central hole structure, and a thread matching the adjusting screw rod 1-6 can be provided inside the support rod.

[0033] The height adjustment screw rod 1-6 is inserted or screwed into the support rod 1-5, and the height adjustment bolt 1-3 is rotated to determine the height of the scraper rotating frame.

[0034] See also Figure 3 The arm 2 includes a mounting shaft 2-4, a shaft hole 2-1 arranged at the center of the mounting shaft 2-4, a hollow mounting plate 2-5 arranged on one side of the mounting shaft 2-4, and two sets of upper and lower limit grooves 2-2 are arranged on the mounting plate 2-5.

[0035] The arm 2 is assembled on the main shaft 1-1 of the bracket 1 through the shaft hole 2-1 and falls on the load-bearing platform 1-2. When working, the arm 2 rotates 360 degrees along the main shaft 1-1 under the action of external force.

[0036] The arm 2 also includes a support arm 2-6 disposed between the mounting shaft 2-4 and the mounting plate 2-5 to increase stability.

[0037] See also Figure 4 The cantilever 3 includes a frame 3-16 in the shape of a right-angled trapezoid, a scraper 3-7 and a scraper position driving device arranged on the frame 3-16, and a pulley 3-14 connected to the frame 3-16. Two sets of upper and lower horizontal active grooves 3-10 are arranged on the right-angle side of the frame 3-16. The position of the horizontal active groove 3-10 corresponds to the position of the limit groove 2-2.

[0038] The cantilever 3 is installed on the mounting plate 2-5 of the arm frame 2 by inserting the right-angle side of the frame 3-16 into the mounting plate 2-5, and the fastening bolts 2-3 pass through two groups of limit grooves 2-2 and two groups of horizontal movable grooves 3-10.

[0039] The limiting groove 2-2 and the horizontal movable groove 3-10 are both long strip-shaped through holes, corresponding to the horizontal positions, and the cantilever 3 can be moved left and right to adjust the position.

[0040] The scraper position driving device includes a slide groove 3-4 arranged at the top of the oblique side of the frame 3-16, a slide rod 3-1 with a slider 3-2 on the top, a rod sleeve 3-3 connecting the slide rod 3-1, an oblique groove 3-8 passing through the upper and lower bottom edges of the frame 3-16, a feed rod 3-5 assembled inside the oblique groove 3-8, a tool holder 3-6 connected to the feed rod 3-5, and a scraper 3-7 is fastened inside the tool holder 3-6; the slide rod 3-1 is limited in the slide groove 3-4 by the slider 3-2; the slide rod 3-1 and the feed rod 3-5 are cross-arranged, and a through rod groove 3-9 is provided in the middle position of the feed rod 3-5, and the slide rod 3-1 passes through the rod groove 3-9.

[0041] The rod sleeve 3-3 moves horizontally, driving the slide rod 3-1 to move horizontally along the slide groove 3-4. The slide rod 3-1 drives the feed rod 3-5, the tool holder 3-6 and the scraper 3-7 to move along the inclined groove 3-8 to adjust the feed amount of the scraper 3-7.

[0042] In order to further restrict the slide bar 3-1, a lower slide groove 3-17 is provided at the bottom of the hypotenuse side of the frame 3-16, and a lower slide head (not shown in the figure) is provided at the bottom of the slide bar 3-1. When installed, the slide head 3-2 and the lower slide head are close to the upper and lower bottom edges of the frame 3-16 to ensure that the slide bar 3-1 can only move in the horizontal direction and will not move in the vertical direction.

[0043] The slide bar 3-1 is perpendicular to the direction of the inclined groove 3-8, that is, the slide bar 3-1 and the feed rod 3-5 are in a vertical relationship; the cross-sectional shape of the slide bar 3-1 matches the shape of the rod groove 3-9, and the two fit closely. The movement of the slide bar 3-1 in the horizontal direction will drive the feed rod 3-5 to move along the inclined groove 3-8, and the slide bar 3-1 will not produce invalid movement.

[0044] The inclined groove 3-8 and the bottom edge of the frame 3-16 are at an angle of 45 degrees, and the feed rod 3-5 is controlled to move up and down along the inclined 45 degree angle by the left and right movement of the slide bar 3-1. The shape of the transition fillet of the molding sand is determined by the scraper 3-7. In this embodiment, the blade angle of the scraper 3-7 is 45-60 degrees.

[0045] The pulley 3-14 is connected to the frame 3-16 through the long rod 3-11. Four supporting wheels 3-15 are arranged at the bottom of the pulley 3-14, a handle 3-13 is arranged at the upper left end, and a telescopic rod 3-12 is arranged at the right end. The telescopic rod 3-12 cooperates with the rod sleeve 3-3.

[0046] The telescopic rod 3-12 is assembled cocentrically with the rod sleeve 3-3, and the telescopic rod 3-12 can freely move horizontally in the rod sleeve 3-3.

[0047] Refer to the attached Figure 5 , 6 When the utility model is used, the mold box 4 is first molded with molding sand before use, the transition arc is molded according to a right angle, and the knife type is selected according to the arc required by the drawing.

[0048] When the operator uses the device, he assembles the device at the center of the molding base 6 and fixes it to ensure that the bottom edge of the frame 3-16 is parallel to the surface of the molding box 4.

[0049] Adjust the height adjustment bolt 1-3 to adjust the height position of the cantilever 3 to ensure that the supporting wheel 3-15 on the pulley 3-14 is in contact with the surface of the mold box 4 and can make a 360° circular motion on the surface of the mold box 4.

[0050] Adjust the relative positions of the limit groove 2-2 and the horizontal movable groove 3-10 in the horizontal direction so that the center of the scraper 3-7 is aligned at a right angle to the molding sand 5.

[0051] When working, the operator holds the handle 3-13 with one hand and the rod sleeve 3-3 with the other hand, and uses the support wheel 3-15 of the pulley 3-14 to contact the surface of the mold box 4 to perform circular motion. The handle 3-13 drives the long rod 3-11, the frame 3-16 and the arm 2 to rotate 360 ​​degrees along the main axis 1-1. During the movement, a tangential force is applied to the handle 3-13 to ensure that the pulley 3-14 always performs circular motion; an outward force is applied to the rod sleeve 3-3, that is, a radially outward force is applied, and a downward force is applied to the scraper 3-7 through the rod sleeve 3-3, the slide rod 3-1 and the feed rod 3-5, which acts on the right angle of the quasi-molding sand 5.

[0052] Working process: the rod sleeve 3-3 pulls the slide bar 3-1 to move left, and the slide bar 3-1 drives the feed rod 3-5 to move down along the 45-degree angle in the inclined groove 3-8 through the rod groove 3-9, so that the scraper 3-7 moves downward along the 45-degree angle while making a circular motion, ensuring that the right-angle molding sand 5 is scraped away circle by circle under the rotation of the scraper 3-7 until it completely becomes a knife-shaped arc to achieve rounded corner shaping.

[0053] Since the bottom edge of the frame 3-16 is parallel to the surface of the mold box 4, and the supporting wheel 3-15 on the pulley 3-14 is in contact with the surface of the mold box 4, it is ensured that only the scraper 3-7 moves downward along the 45-degree angle while making a circular motion.

[0054] To ensure that the telescopic rod 3-12 has sufficient length, during operation, it will not fall off from the rod sleeve 3-3.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraping and shaving frame suitable for roller transition rounded corner shaping, characterized in that: The scraping rotary frame comprises a bracket (1), an arm bracket (2) and a cantilever (3); The bracket (1) comprises a positioning chassis (1-4) and a main shaft (1-1); The arm bracket (2) comprises a mounting shaft (2-4), a shaft hole (2-1) arranged at the center of the mounting shaft (2-4), and a hollow mounting plate (2-5) arranged on one side of the mounting shaft (2-4); and two sets of upper and lower limit grooves (2-2) are arranged on the mounting plate (2-5); The cantilever (3) comprises a frame (3-16) in the shape of a right-angled trapezoid, a scraper (3-7) and a scraper position driving device arranged on the frame (3-16), and a pulley (3-14) connected to the frame (3-16); two sets of upper and lower horizontal movable grooves (3-10) are arranged on the right-angle side of the frame (3-16); the position of the horizontal movable groove (3-10) corresponds to the position of the limit groove (2-2); The arm (2) is assembled on the main shaft (1-1) of the bracket (1) through the shaft hole (2-1). When in operation, the arm (2) rotates 360 degrees along the main shaft (1-1); the cantilever (3) is installed on the mounting plate (2-5) of the arm (2) by inserting the right-angle side of the frame (3-16) into the mounting plate (2-5), and the fastening bolts (2-3) pass through the two groups of limit grooves (2-2) and the two groups of horizontal movable grooves (3-10).

2. The scraping rotary frame according to claim 1, characterized in that: The bracket (1) further comprises a support rod (1-5), a height adjustment screw rod (1-6), a height adjustment bolt (1-3) matched with the height adjustment screw rod (1-6), and a load-bearing platform (1-2) connected to the height adjustment screw rod (1-6); the support rod (1-5) is connected to the positioning chassis (1-4); the height adjustment screw rod (1-6) is inserted into the support rod (1-5); the main shaft (1-1) is arranged on the load-bearing platform (1-2); and the diameter of the load-bearing platform (1-2) is larger than the shaft hole (2-1).

3. The scraping rotary frame according to claim 1, characterized in that: The arm support (2) further comprises a support arm (2-6) arranged between the mounting shaft (2-4) and the mounting plate (2-5).

4. The scraping carousel according to claim 1, characterized in that: The scraper position driving device comprises a slide groove (3-4) arranged at the top of the oblique side of the frame (3-16), a slide rod (3-1) with a slider (3-2) arranged at the top, a rod sleeve (3-3) connected to the slide rod (3-1), an oblique groove (3-8) penetrating the frame (3-16), a feed rod (3-5) assembled inside the oblique groove (3-8), a tool holder (3-6) connected to the feed rod (3-5), and a scraper (3-7) fastened inside the tool holder (3-6). The sliding rod (3-1) is limited in position in the sliding groove (3-4) by the sliding head (3-2). The slide rod (3-1) and the feed rod (3-5) are arranged crosswise, a through rod groove (3-9) is provided in the middle of the feed rod (3-5), and the slide rod (3-1) passes through the rod groove (3-9). The rod sleeve (3-3) moves horizontally, driving the slide rod (3-1) to move horizontally along the slide groove (3-4), and the slide rod (3-1) drives the feed rod (3-5), the knife holder (3-6) and the scraper (3-7) to move along the inclined groove (3-8).

5. The scraping carousel according to claim 4, characterized in that: A sliding groove (3-17) is provided at the bottom of the oblique side of the frame (3-16), and a sliding head is provided at the bottom of the sliding rod (3-1).

6. The scraping carousel according to claim 4, characterized in that: The sliding rod (3-1) is perpendicular to the inclined groove (3-8).

7. The scraping carousel according to claim 6, characterized in that: The cross-sectional shape of the sliding rod (3-1) matches the shape of the rod groove (3-9).

8. The scraping carousel according to claim 4 or 6, characterized in that: The inclined groove (3-8) forms an angle of 45 degrees with the bottom edge of the frame (3-16).

9. The scraping carousel according to claim 4, characterized in that: The pulley (3-14) is connected to the frame (3-16) via a long rod (3-11); four supporting wheels (3-15) are arranged at the bottom of the pulley (3-14); a handle (3-13) is arranged at the left end of the upper part; and a telescopic rod (3-12) is arranged at the right end; the telescopic rod (3-12) cooperates with the rod sleeve (3-3).

10. The scraping carousel according to claim 9, characterized in that: The telescopic rod (3-12) and the rod sleeve (3-3) are assembled cocentrically, and the telescopic rod (3-12) can freely move horizontally in the rod sleeve (3-3).

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