Metal workpiece clamping device

Abstract

The utility model relates to the technical field of metal part fixing and machining, and particularly discloses a metal machining part clamping device which comprises a supporting disc, a sinking table groove is formed in the center of the upper end of the supporting disc, and a clamping mechanism for locking and clamping a metal disc at the same time is installed on the supporting disc. The clamping mechanism comprises fan-shaped supporting seats which are circumferentially and evenly distributed on the upper end face of the supporting disc at intervals, clamping claws are rotationally installed between the adjacent fan-shaped supporting seats through rotating shafts, and a power assembly for moving the clamping claws up and down at the same time is arranged in the sinking table groove. Through the arrangement of the clamping mechanism, a worm rotates to drive a worm gear to rotate, the worm gear drives a pull rod to rotate, the pull rod is matched with a locking nut in the rotating process, the locking nut and a connecting disc integrally move downwards, when the connecting disc moves downwards, clamping claws are rotated downwards through grooves, and the upper ends of the clamping claws clamp and fix the outer ring of a metal disc at the same time; and it is guaranteed that the clamping force on the periphery of the metal disc is coordinated and balanced, and the convenience of assembling, disassembling and fixing of the metal disc is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal parts fixing and processing technology, and in particular to a metal processing part clamping device. Background Technology

[0002] Metal parts refer to a collective term for metal blocks, rods, tubes, etc., of various specifications and shapes manufactured using metal materials. During the machining of metal discs, it is necessary to clamp and fix the metal disc. Currently, this is mainly done by placing the metal disc on a worktable and then installing multiple fixing blocks around the disc to lock it in place. This method is cumbersome in terms of fixing and limiting, and may result in excessive or insufficient locking force in certain areas, causing problems for the machining of the metal disc. Utility Model Content

[0003] The purpose of this invention is to provide a metal workpiece clamping device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A metal processing part clamping device includes a support plate with a recessed groove at the center of its upper end. A clamping mechanism for simultaneously locking and clamping the metal plate is installed on the support plate. The clamping mechanism includes fan-shaped support seats evenly distributed circumferentially on the upper surface of the support plate. Clamping claws are rotatably mounted between adjacent fan-shaped support seats via a rotating shaft. A power component for simultaneously moving the clamping claws up and down is provided in the recessed groove. The power component includes a connecting plate disposed in the recessed groove. A groove opposite to the clamping claws is formed on the outer cylindrical surface of the connecting plate. A pull rod is vertically inserted through the center of the connecting plate. A worm gear is fixed to the lower end of the pull rod through the support plate. A worm is engaged on one side of the worm gear. A spring is disposed on the outer side of the pull rod at the lower end of the connecting plate. A locking nut is fixed to the upper end of the connecting plate.

[0006] Further details: The pull rod and the locking nut are connected by threads, and the pull rod is rotatably connected to the connecting plate and the support plate.

[0007] Further details: A flange is provided at the edge of the upper surface of the fan-shaped support base, and the fan-shaped support base is connected to the support plate by bolts.

[0008] Further configuration: One end of the clamping claw is inserted into the groove for movable connection; the locking nut is welded to the connecting plate; the upper surface of the locking nut is lower than the upper surface of the connecting plate; and the placement surface of the fan-shaped support is higher than the upper surface of the connecting plate.

[0009] Further feature: Anti-slip texture is provided on the gripping surface of the clamping claws.

[0010] Further configuration: The worm gear is rotatably connected to the support plate, and a rotating head is installed at one end of the worm gear, which passes through the support plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By setting up a clamping mechanism, the worm gear rotates, which drives the worm wheel to rotate. The worm wheel then drives the pull rod to rotate. During the rotation of the pull rod, it cooperates with the locking nut, causing the locking nut and the connecting plate to move downward as a whole. When the connecting plate moves downward, it rotates the clamping claw downward through the groove, so that the upper end of the clamping claw simultaneously clamps and fixes the outer ring of the metal plate. This ensures that the clamping force on the outer circumference of the metal plate is coordinated and balanced, improving the convenience of loading, unloading and fixing the metal plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a metal processing workpiece clamping device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the metal processing part clamping device described in this utility model in an exploded state;

[0016] Figure 3 This is a half-sectional structural diagram of a metal workpiece clamping device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the main cross-section of the metal processing part clamping device of this utility model;

[0018] Figure 5 This is a schematic diagram of the metal processing part clamping device described in this utility model in its usage state.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Support plate; 11. Recessed groove; 21. Fan-shaped support base; 22. Clamping claw; 23. Connecting plate; 231. Groove; 24. Locking nut; 25. Pull rod; 26. Spring; 27. Worm gear; 28. Worm. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-5 As shown, a metal processing part clamping device includes a support plate 1, a countersunk groove 11 is provided at the center of the upper end of the support plate 1, and a clamping mechanism for simultaneously locking and clamping the metal plate is installed on the support plate 1.

[0025] In this embodiment: the clamping mechanism includes fan-shaped support seats 21 evenly distributed on the upper surface of the support plate 1 at intervals. A flange is provided at the edge of the upper surface of the fan-shaped support seat 21. The fan-shaped support seat 21 is connected to the support plate 1 by bolts. The fan-shaped support seat 21 supports and limits the metal plate. A clamping claw 22 is rotatably installed between adjacent fan-shaped support seats 21 through a rotating shaft. The clamping claw 22 clamps and limits the metal plate radially. Anti-slip texture is provided on the clamping surface of the clamping claw 22 to improve the clamping force of the clamping claw 22. A power component for moving the clamping claw 22 up and down simultaneously is provided in the recessed groove 11.

[0026] The power assembly includes a connecting plate 23 disposed within the recessed groove 11. A groove 231, corresponding to the clamping claw 22, is formed on the outer cylindrical surface of the connecting plate 23. A pull rod 25 is vertically inserted through the center of the connecting plate 23. A worm gear 27 is fixed to the lower end of the pull rod 25 through the support plate 1. A worm 28 meshes with one side of the worm gear 27. A spring 26 is disposed on the outer side of the pull rod 25 at the lower end of the connecting plate 23, pushing the connecting plate 23 upwards to improve the smoothness of resetting when the connecting plate 23 releases the clamping claw 22. A locking nut 24 is fixed to the upper end of the connecting plate 23. The pull rod 25 and the locking nut 24 are connected by threads. The pull rod 25 is rotatably connected to the connecting plate 23 and the support plate 1. One end of the clamping claw 22 is inserted into the groove 231 and moves within it. The connection is made by welding the locking nut 24 to the connecting plate 23, so that when the worm 28 rotates, it drives the pull rod 25 to rotate through the worm wheel 27. During the rotation of the pull rod 25, it cooperates with the locking nut 24, so that the locking nut 24 and the connecting plate 23 move downward as a whole. When the connecting plate 23 moves downward, it rotates the clamping claw 22 downward through the groove 231, so that the upper end of the clamping claw 22 clamps and fixes the outer ring of the metal plate at the same time. The upper end surface of the locking nut 24 is lower than the upper end surface of the connecting plate 23, and the placement surface of the sector support 21 is higher than the upper end surface of the connecting plate 23, so as to ensure that the metal plate is placed on the sector support 21. The worm 28 is rotatably connected to the support plate 1. One end of the worm 28 passes through the support plate 1 and is provided with a rotating head, which facilitates the rotation of the worm 28.

[0027] The working principle and usage process of this utility model are as follows: The support plate 1 is fixedly installed on the workbench, and the metal plate is placed on the fan-shaped support base 21. The worm gear 28 is rotated by a wrench, so that the worm gear 28 meshes with the worm wheel 27 and rotates, which drives the pull rod 25 to rotate. During the rotation of the pull rod 25, it cooperates with the locking nut 24, so that the locking nut 24 and the connecting plate 23 move downward as a whole. When the connecting plate 23 moves downward, it rotates the clamping claw 22 downward through the groove 231, so that the upper end of the clamping claw 22 simultaneously clamps and fixes the outer ring of the metal plate, ensuring that the clamping force on the outer ring of the metal plate is coordinated and balanced.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A metal workpiece clamping device, characterized in that: The device includes a support plate (1), with a recessed groove (11) at the center of its upper end. A clamping mechanism for simultaneously locking and holding a metal disc is mounted on the support plate (1). The clamping mechanism includes fan-shaped support seats (21) evenly distributed circumferentially on the upper surface of the support plate (1). Clamping claws (22) are rotatably mounted between adjacent fan-shaped support seats (21) via a rotating shaft. A power assembly for simultaneously moving the clamping claws (22) up and down is provided within the recessed groove (11). The power assembly includes components disposed within the recessed groove. The connecting plate (23) is located in the slot (11). The outer cylindrical surface of the connecting plate (23) has a groove (231) opposite to the clamping claw (22). A pull rod (25) is vertically inserted through the center of the connecting plate (23). The lower end of the pull rod (25) passes through the support plate (1) and is fixed with a worm gear (27). A worm (28) is engaged on one side of the worm gear (27). A spring (26) is provided on the outer side of the pull rod (25) at the lower end of the connecting plate (23). A locking nut (24) is fixed at the upper end of the connecting plate (23).

2. The metal workpiece clamping device according to claim 1, characterized in that: The pull rod (25) is threadedly connected to the locking nut (24), and the pull rod (25) is rotatably connected to the connecting plate (23) and the support plate (1).

3. The metal workpiece clamping device according to claim 2, characterized in that: The upper edge of the fan-shaped support base (21) is provided with a flange, and the fan-shaped support base (21) is connected to the support plate (1) by bolts.

4. The metal workpiece clamping device according to claim 1, characterized in that: One end of the clamping claw (22) is inserted into the groove (231) for movable connection. The locking nut (24) is welded to the connecting plate (23). The upper surface of the locking nut (24) is lower than the upper surface of the connecting plate (23). The placement surface of the fan-shaped support (21) is higher than the upper surface of the connecting plate (23).

5. A metal workpiece clamping device according to claim 1, characterized in that: The gripping surface of the gripping claw (22) is provided with anti-slip texture.

6. A metal workpiece clamping device according to claim 1, characterized in that: The worm (28) is rotatably connected to the support disk (1), and one end of the worm (28) passes through the support disk (1) and is provided with a rotating head.

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