Vertical lathe fixture clamping device

Abstract

The utility model discloses a vertical lathe clamp clamping device which comprises a shell, a plurality of square cylinders movably penetrate through the outer wall of the shell, the square cylinders are arranged in an annular array mode with the shell as the center, and the ends, located in an inner cavity of the shell, of the square cylinders are connected with a driving assembly. The end, located on the outer side of the shell, of the square cylinder is slidably connected with a square rod, the outer wall, located on the outer side of the shell, of the square cylinder is in threaded connection with a bolt, the threaded end of the bolt abuts against the outer wall of the square rod, and a clamping rod is fixedly arranged at one end of the square rod. The utility model relates to the technical field of manufacturing of machine tools and metal accessories, a user can determine the extension length of square rods according to the size of an inner cavity of an annular workpiece to be machined, firstly, a bolt is rotated through a wrench to be separated from the square rods, then the square rods can be driven to stretch out and draw back, and when the three square rods are all close to the inner wall of the workpiece, machining is completed. After the square cylinders are locked and positioned through the bolts, the square cylinders can be controlled to stretch out and draw back synchronously through rotation of the hand wheel, the square cylinders moving outwards can drive the square rods and the clamping rods to clamp and fix the annular workpiece, and then the annular workpiece with the large size can be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool and metal accessory manufacturing, in particular to a clamping device for a vertical lathe. Background Art

[0002] The abbreviation of vertical lathe is "vertical lathe". Vertical lathe is mainly used to process large and heavy workpieces with large diameter and short length, and workpieces that are not easy to clamp on horizontal lathes. When the rotation diameter is met, too heavy workpieces are not easy to clamp on horizontal lathes. Due to their own weight, it affects the processing accuracy. The use of vertical lathes can solve the above problems. Most of the current vertical lathes use a three-jaw chuck to clamp and fix the outer wall of the workpiece. When processing some annular parts, it is also necessary to use an internal clamping method to fix them. There are also many kinds of existing internal clamps, but due to the internal clamping method, the internal transmission space of the clamp is small, which makes it difficult for some internal clamps to fix relatively large annular workpieces. To this end, we provide a vertical lathe clamp clamping device to solve the above problems. Utility Model Content

[0003] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a clamping device for a vertical lathe, including an outer shell, a plurality of square tubes movably penetrate the outer wall of the outer shell, and the plurality of square tubes are arranged in a circular array with the outer shell as the center, one end of the square tube located in the inner cavity of the outer shell is connected to a driving assembly, the end of the square tube located on the outside of the outer shell is slidably connected to a square rod, the outer wall of the square tube located on the outside of the outer shell is threadedly connected with a bolt, the threaded end of the bolt is pressed against the outer wall of the square rod, and a clamping rod is fixedly provided at one end of the square rod.

[0004] Preferably, the driving assembly includes a driving wheel, the rotating shaft of the driving wheel is rotatably arranged at the bottom of the inner cavity of the shell, the outer wall of the driving wheel is meshed with a plurality of driven wheels, the rotating shaft of the driven wheel is rotatably arranged at the top of the inner cavity of the shell, and a rack is meshed on one side of the outer wall of the driven wheel, and the plurality of racks are respectively fixedly connected to corresponding square tubes.

[0005] Preferably, a worm is rotatably provided in the inner cavity of the shell, a worm wheel is meshed on one side of the worm, and the inner cavity of the worm wheel is key-connected to the outer wall of the rotating shaft of the driving wheel.

[0006] Preferably, both ends of the clamping side of the clamping rod are processed with protrusions, and the driving end of the worm is fixedly provided with a hand wheel.

[0007] The beneficial technical effect of the utility model is as follows: when using the clamping device of the clamp, the user can determine the extended length of the square rod according to the inner cavity size of the annular workpiece to be processed, firstly, the bolt is turned by a wrench to separate the bolt from the square rod, and then the square rod can be driven to extend and retract, when the three square rods are close to the inner wall of the workpiece and are locked and positioned by the bolts, the multiple square tubes can be controlled to extend and retract synchronously by rotating the hand wheel, and the square tubes moving outward can drive the square rods and the clamping rods to clamp and fix the annular workpiece, thereby fixing larger annular workpieces, making the application range of the clamping device wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of the structure of the utility model from top view is shown.

[0009] Figure 2 The cross-sectional structure diagram of the housing of the utility model is shown.

[0010] Figure numerals: 1, housing; 2, square tube; 3, square rod; 4, bolt; 5, clamping rod; 6, driving wheel; 7, driven wheel; 8, rack; 9, worm; 10, worm wheel; 11, handwheel. DETAILED DESCRIPTION

[0011] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0012] The utility model proposes a clamping device for a vertical lathe fixture, comprising an outer shell 1, wherein a plurality of square tubes 2 are movably penetrated through the outer wall of the outer shell 1, and the plurality of square tubes 2 are arranged in an annular array with the outer shell 1 as the center. When the plurality of square tubes 2 arranged in the annular array are moved, the annular workpiece can be fixed at a fixed distance, so that the fixation is more stable. One end of the square tube 2 located in the inner cavity of the outer shell 1 is connected with a driving assembly, and the driving assembly can realize synchronous driving of the plurality of square tubes 2. The end of the square tube 2 located on the outer side of the outer shell 1 is slidably connected with a square rod 3, and a bolt 4 is threadedly connected on the outer wall of the square tube 2 located on the outer side of the outer shell 1, and the threaded end of the bolt 4 is tightly pressed against the outer wall of the square rod 3. A clamping rod 5 is fixedly arranged at one end of the square rod 3. After the bolt 4 is separated from the square rod 3, the square rod 3 can be driven to be extended and retracted. When the three square rods 3 are close to the inner wall of the workpiece and the position of the square rod 3 is fixed after being locked and positioned by the bolt 4, the clamping rod 5 can be extended and retracted and realizes the clamping and fixing of a relatively large annular workpiece.

[0013] Specifically, the driving assembly includes a driving wheel 6, the rotating shaft of the driving wheel 6 is rotatably arranged at the bottom of the inner cavity of the shell 1, and the outer wall of the driving wheel 6 is meshed with a plurality of driven wheels 7, and the rotating shaft of the driven wheel 7 is rotatably arranged at the top of the inner cavity of the shell 1. The rotating driving wheel 6 can drive multiple driven wheels 7 to rotate synchronously, and a rack 8 is meshed on one side of the outer wall of the driven wheel 7. Several racks 8 are respectively fixedly connected to the corresponding square tubes 2. The rotating driven wheel 7 can drive the square tube 2 to extend and retract by meshing with the rack 8.

[0014] Specifically, a worm 9 is rotatably provided in the inner cavity of the housing 1, a worm wheel 10 is meshed with one side of the worm 9, and an inner cavity key of the worm wheel 10 is connected to the outer wall of the rotating shaft of the driving wheel 6. Through the cooperation of the worm 9 and the worm wheel 10, the user can manually drive the driving wheel 6 to rotate and lock the driving wheel 6 at the same time.

[0015] Specifically, both ends of the clamping side of the clamping rod 5 are processed with convex points. The design purpose is to increase the fixing points of the clamping rod 5 on the workpiece, thereby making its fixation more stable. A handwheel 11 is fixedly provided on the driving end of the worm 9, and the user can drive the worm 9 to rotate through the handwheel 11.

[0016] Working principle: When using the clamping device of the clamp, the user can determine the extended length of the square rod 3 according to the inner cavity size of the annular workpiece to be processed. First, the bolt 4 is turned by a wrench to separate the bolt 4 from the square rod 3, and then the square rod 3 can be driven to extend and retract. When the three square rods 3 are positioned, the worm 9 can be turned by the hand wheel 11, so that the rotating worm 9 can drive the driving wheel 6 to rotate by engaging with the worm wheel 10, and realize the locking of the rotation of the driving wheel 6, and the rotating driving wheel 6 can drive multiple driven wheels 7 to rotate, and the rotating driven wheel 7 can drive multiple square tubes 2 to extend and retract synchronously by engaging with the rack 8, and the outward moving square tube 2 can drive the square rod 3 and the clamping rod 5 to clamp and fix the annular workpiece, so that larger-sized annular workpieces can be fixed, making the application range of the clamping device wider.

[0017] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0018] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0020] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0021] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A clamping device for a vertical lathe, comprising a housing (1), wherein a plurality of square tubes (2) are movably penetrated through the outer wall of the housing (1), wherein the plurality of square tubes (2) are arranged in a circular array with the housing (1) as the center, and a driving assembly is connected to one end of the square tube (2) located in the inner cavity of the housing (1), wherein: One end of the square tube (2) located outside the shell (1) is slidably connected to a square rod (3); a bolt (4) is threadedly connected to the outer wall of the square tube (2) located outside the shell (1); the threaded end of the bolt (4) is tightly pressed against the outer wall of the square rod (3); and a clamping rod (5) is fixedly provided at one end of the square rod (3).

2. The clamping device for a vertical lathe according to claim 1, characterized in that: The driving assembly comprises a driving wheel (6), the rotating shaft of the driving wheel (6) is rotatably arranged at the bottom of the inner cavity of the outer shell (1), the outer wall of the driving wheel (6) is meshed with a plurality of driven wheels (7), the rotating shaft of the driven wheel (7) is rotatably arranged at the top of the inner cavity of the outer shell (1), and one side of the outer wall of the driven wheel (7) is meshed with a rack (8), and the plurality of racks (8) are respectively fixedly connected to corresponding square tubes (2).

3. The clamping device for a vertical lathe according to claim 1, characterized in that: A worm (9) is rotatably arranged in the inner cavity of the housing (1), a worm wheel (10) is meshed on one side of the worm (9), and the inner cavity of the worm wheel (10) is key-connected to the outer wall of the rotating shaft of the driving wheel (6).

4. The clamping device for a vertical lathe according to claim 3, characterized in that: Both ends of the clamping side of the clamping rod (5) are processed with convex points, and the driving end of the worm (9) is fixedly provided with a hand wheel (11).

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