Fixing device for machining inner circle of casting

Abstract

The utility model discloses a fixing device for casting inner circle processing, which comprises an annular cylinder, one end of a limiting rod outside the annular cylinder is fixedly connected with a clamping plate, a curved bar is inserted at the bottom end of the clamping plate, one side of the clamping plate is in threaded connection with a bolt, and the threaded end of the bolt abuts against the outer wall of the curved bar. The utility model relates to the technical field of casting processing, bolts are unscrewed according to the length and the fixed position of a casting, so that the cranked levers can move up and down in the clamping plates, the casting can be positioned and lifted according to the heights of the four cranked levers, and meanwhile, a worm can drive an annular groove plate to rotate through meshing with a worm wheel; due to the fact that the inclined arc-shaped groove is formed in the annular groove plate, rotation of the annular groove plate can drive the multiple limiting rods to move synchronously through cooperation with the sliding rods, then the clamping plates are driven to clamp and fix the casting, centering clamping of the casting is achieved, the fixing position of the casting is guaranteed, and the casting can be fixed conveniently. And the precision between the casting and the cutter is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of casting processing, in particular to a fixing device for casting inner circle processing. BACKGROUND

[0002] Casting is a metal forming object obtained by various casting methods, that is, pouring, injection, suction or other casting methods are used to pour the liquid metal into the pre-prepared casting mold, and the obtained object with certain shape, size and performance is obtained after cooling and subsequent processing means such as polishing. After the casting is manufactured, some circular or square castings will be processed according to the use requirements, and the fixing of the castings mainly includes fixed type and rotary type, but whether it is fixed type or rotary type, it is difficult to position and fix the castings according to the length of the castings, which can easily lead to the centrifugal force of the castings due to the overlong one end or the inaccurate distance between the cutter head, thereby affecting the overall work efficiency of the staff. Therefore, we provide a fixing device for casting inner circle processing to solve the above problems. SUMMARY

[0003] In order to solve the above problems, that is, to solve the problems raised in the above background technology, the utility model provides a fixing device for casting inner circle processing, which comprises an annular cylinder, the inner cavity of the annular cylinder is fixedly provided with a groove rail at four corners, the inside of the groove rail is slidably provided with a limiting rod, and the limiting rod movably penetrates the inner wall of the annular cylinder, one end of the limiting rod outside the annular cylinder is fixedly connected with a clamping plate, the inner cavity of the annular cylinder is rotatably provided with an annular groove plate, a limiting groove in the annular groove plate is slidably provided with a sliding rod, the sliding rod is fixedly arranged below the corresponding limiting rod, a curved rod is inserted at the bottom end of the clamping plate, a bolt is threadedly connected on one side of the clamping plate, and the threaded end of the bolt abuts against the outer wall of the curved rod.

[0004] Preferably, the bottom of the annular groove plate is fixedly provided with a worm gear, one side of the worm gear is engaged with a worm, and the worm is rotatably arranged on the outer wall of the annular cylinder.

[0005] Preferably, the outer wall of the annular cylinder is fixedly provided with a fixing seat at four corners, and the screwing end of the worm is provided with an internal hexagonal socket.

[0006] Preferably, the annular cylinder comprises a top shell and a bottom shell, and the top shell and the bottom shell are fixedly connected through a bolt.

[0007] The beneficial technical effect of the utility model discloses: according to the length of casting and fixed position to unscrew bolt, make the curved rod can move up and down in the inside of the clamping plate, and then the height of four curved rods can position and lift casting, and worm can rotate annular groove board through the meshing with worm wheel, because the inside of annular groove board is provided with the inclined arc-shaped groove, make the rotation of annular groove board can drive multiple limit rods synchronous movement through the cooperation with slide bar, and then drive clamping plate to clamp and fix casting, this kind of setting not only realized the centring clamping of casting, also guaranteed the fixed position of casting, make the precision between casting and cutter more, and reduced the centrifugal force when casting rotates. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The utility model discloses a front view structure schematic diagram.

[0009] Figure 2 The utility model discloses a annular groove board's plane structure schematic diagram.

[0010] Reference signs 1, annular cylinder;2, groove rail;3, limit rod;4, clamping plate;5, annular groove board;6, slide bar;7, worm;8, worm wheel;9, curved rod;10, bolt;11, fixed seat. DETAILED DESCRIPTION

[0011] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0012] The utility model provides a fixing device for casting inner circle processing, including annular cylinder 1, annular cylinder 1's outer wall four corners are fixedly arranged with fixed seat 11, annular cylinder 1 includes top shell and bottom shell, top shell is fixedly connected with bottom shell through bolt, and it is convenient to overhaul and maintain the component of inner chamber, the inner chamber four corners of annular cylinder 1 are fixedly arranged with groove rail 2, the groove cavity of groove rail 2 is set as convex letter shape, the inside sliding of groove rail 2 is provided with the limit rod 3 of adaptation, and limit rod 3 movablely penetrates the inner wall of annular cylinder 1, and its abutting end is fixedly connected with the clamping plate 4, and the cooperation of groove rail 2 and limit rod 3 can guide the movement of clamping plate 4, the inner chamber rotation of annular cylinder 1 is provided with annular groove plate 5, and the limit slot of annular groove plate 5 is slidably provided with slide rod 6, and slide rod 6 is fixedly arranged below corresponding limit rod 3, the inside of annular groove is provided with four inclined arc grooves, so that the rotation of annular groove plate 5 can drive multiple limit rods 3 to move synchronously through slide rod 6, the bottom of annular groove plate 5 is fixedly provided with worm wheel 8, one side of worm wheel 8 is engaged with worm 7, and worm 7 is rotationally arranged on the outer wall of annular cylinder 1, and the screwing end of worm 7 is provided with an internal hexagonal socket, and the worm 7 can be rotated by the engagement of the worm wheel 8, the bottom end of the clamping plate 4 is inserted with the curved rod 9, one side of the clamping plate 4 is threadedly connected with the bolt 10, and the threaded end of the bolt 10 abuts against the outer wall of the curved rod 9. According to the length and fixed position of the casting, loosen the bolt 10, so that the curved rod 9 can move up and down in the inner part of the clamping plate 4, and then the height of the four curved rods 9 can position and lift the casting.

[0013] Working principle: first, annular cylinder 1 is installed on the workbench through fixed seat 11, and when the casting needs to be fixed, loosen the bolt 10 according to the length and fixed position of the casting, so that the curved rod 9 can move up and down in the inner part of the clamping plate 4, and then tighten the bolt 10 when the height of the four curved rods 9 can position and lift the casting, then place the casting in the inner fixed cavity of annular cylinder 1, so that the casting is placed above the curved rod 9, then tighten the worm 7 with a hexagonal wrench, so that the worm 7 can drive the annular groove plate 5 to rotate through the engagement of the worm wheel 8. Because the inside of the annular groove plate 5 is provided with inclined arc grooves, the rotation of the annular groove plate 5 can drive multiple limit rods 3 to move synchronously through the cooperation of the slide rod 6, and then drive the clamping plate 4 to clamp and fix the casting. This setting not only realizes the centering and clamping of the casting, but also ensures the fixed position of the casting, so that the casting and the tool have higher accuracy, and the centrifugal force when the casting rotates is reduced.

[0014] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the utility model, and equivalent substitutions can be made to parts thereof, and in particular, as long as there is no structural conflict, each of the technical features mentioned in each of the embodiments can be combined in any manner. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0015] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0016] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent to the process, article or equipment / device.

[0018] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or substitutions to related technical features, and the technical solutions after the changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A fixture for internal circle machining of a casting, comprising a ring-shaped cylinder (1), characterized in that: The inner cavity of the annular barrel (1) is provided with a groove rail (2) at each corner, the inside of the groove rail (2) is slidably provided with a limiting rod (3), the limiting rod (3) movably penetrates the inner wall of the annular barrel (1), one end of the limiting rod (3) located outside the annular barrel (1) is fixedly connected with a clamping plate (4), the inner cavity of the annular barrel (1) is rotatably provided with an annular groove plate (5), the limiting groove of the annular groove plate (5) is slidably provided with a sliding rod (6), the sliding rod (6) is fixedly arranged below the corresponding limiting rod (3), the bottom end of the clamping plate (4) is inserted with a curved rod (9), one side of the clamping plate (4) is threadedly connected with a bolt (10), the threaded end of the bolt (10) abuts against the outer wall of the curved rod (9).

2. The fixture for inside circle machining of a casting according to claim 1, wherein: The bottom of the annular groove plate (5) is fixedly provided with a worm wheel (8), one side of the worm wheel (8) is engaged with a worm (7), and the worm (7) is rotatably arranged on the outer wall of the annular barrel (1).

3. A fixture for internal circle machining of a casting according to claim 2, characterized in that: The outer wall of the annular barrel (1) is fixedly provided with a fixing seat (11) at each corner, and the screwing end of the worm (7) is provided with an internal hexagonal socket.

4. The fixture of claim 1, wherein: The annular barrel (1) comprises a top shell and a bottom shell, and the top shell and the bottom shell are fixedly connected by a bolt.

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