CN221603860U - Circular workpiece clamping tool - Google Patents

Abstract

The application discloses a circular workpiece clamping tool, which comprises a bottom plate and a disc-shaped base, wherein supporting rods are fixedly arranged on two sides of the top surface of the bottom plate, rotating shafts are fixedly arranged on two sides of the base, two rotating shafts are respectively and rotatably arranged at one ends of the two supporting rods far away from the base, a worm wheel is coaxially and fixedly arranged in the middle of the rotating shaft on one side of the base, a worm is rotatably arranged right below the worm wheel on one side of the supporting rod, one end of the worm is meshed with the worm wheel in the supporting rod, three T-shaped sliding grooves are formed in the annular array on the top surface of the base, screw rods are rotatably arranged in the three sliding grooves, sliding blocks are respectively and spirally arranged on the three screw rods, a clamping assembly is arranged on the top surface of the sliding blocks, and a power assembly for driving the three screw rods to synchronously rotate is arranged in the middle of the bottom surface of the base.

Description

Circular workpiece clamping tool

Technical Field

The application belongs to the technical field of clamping tools, and particularly relates to a circular workpiece clamping tool.

Background

The fixture is a device for fixing a machining object in a machining process so as to occupy a correct position for receiving construction or detection, and in a broad sense, any process in the process for rapidly, conveniently and safely mounting a workpiece can be called a fixture, and along with development of various productivity, in actual production, various round workpieces often need to be machined, and at this time, a round workpiece fixture is required.

The current circular work piece centre gripping frock, current circular centre gripping frock like technical bulletin number CN314110106U, including annular base, annular base periphery is provided with four backup pads, and the backup pad end is equipped with the slider that the tip has two splint, both sides are equipped with and link up the groove, and slider splint centre gripping is had the type of falling L mounting through hinged joint on the slider upper end on the groove and is locked through the locking bolt to the backup pad both sides, and L type mounting upper end is equipped with fastening bolt, and this centre gripping frock needs locking and loosening the bolt many times when using, uses comparatively loaded down with trivial details.

Disclosure of utility model

The application aims to solve the problem of complicated use in the prior art, and provides a circular workpiece clamping tool.

In order to achieve the above purpose, the present application adopts the following technical scheme: the utility model provides a circular work piece centre gripping frock, includes bottom plate and discoid base, bottom plate top surface both sides fixed mounting has branch, the equal fixed mounting in base both sides has the pivot, two the pivot is rotated respectively and is installed the one end that the base was kept away from at two branches, the base top is annular array and opens there are three spout of T type, three all rotate in the spout and install the lead screw, three equal screw thread installs the slider on the lead screw, clamping assembly is installed to the slider top surface, base bottom surface mid-mounting has the synchronous pivoted power component of three lead screw of drive.

Through adopting clamping assembly, lead screw and power component, realized the quick centre gripping fixed to circular work piece.

Preferably, the power assembly comprises a motor, a driving bevel gear and a driven bevel gear, wherein the motor is fixedly arranged in the middle of the bottom surface of the base, an output shaft of the motor stretches into the base, the driving bevel gear is fixedly arranged on the output shaft of the motor, the driven bevel gear is provided with three driven bevel gears which are respectively fixedly arranged at one ends of the screw rod stretching into the base, and the three driven bevel gears are meshed with the driving bevel gear.

By arranging the driving bevel gear and the driven bevel gear, the three limit components are driven to synchronously move.

Preferably, the clamping assembly comprises a T-shaped connecting plate, telescopic rods are rotatably arranged at four corners of the side face of the part, perpendicular to the sliding block, of the connecting plate, clamping plates are fixedly arranged at one ends, far away from the connecting plate, of the telescopic rods, and springs are sleeved on the outer sides of the telescopic rods.

Through setting up telescopic link and spring, realized the buffering to the work piece centre gripping and to the observation of clamping state.

Preferably, bolts are connected to four corners of a part of the connecting plate parallel to the sliding block, and the connecting plate is fixed on the top surface of the sliding block through the bolts.

Through setting up detachable connecting plate, realized the change of clamping assembly.

Preferably, the clamping plate is arc-shaped, and the inner wall of the clamping plate is connected with a buffer cushion.

Through setting up curved splint and cushion, realize preventing splint destruction work piece outer wall.

Preferably, the middle part of the rotating shaft on one side of the base is positioned in the support rod, a worm wheel is fixedly installed coaxially, one side of the support rod is positioned under the worm wheel, a worm is rotatably installed, one end of the worm is meshed with the worm wheel in the support rod, the other end of the worm is provided with four through holes in an annular array outside the support rod, and a rotating rod for assisting in rotating the worm is slidably inserted in the through holes.

Through setting up worm wheel and worm, realized that the base can rotate the function.

In summary, the technical effects and advantages of the present application are: according to the round workpiece clamping tool, the screw rod, the power assembly and the clamping assemblies are arranged, when the round workpiece clamping tool is used, different clamping assemblies are selected according to workpiece specifications, the power assembly drives the screw rod to rotate so as to drive the three clamping assemblies to move, the workpiece is clamped, after machining is finished, the power assembly drives the screw rod, and the screw rod drives the clamping assemblies to loosen the workpiece, so that convenience in operation is improved; secondly, through setting up worm wheel and worm, make the fixed work piece of clamping assembly after, can rotate to different directions and process.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a top view of the present application;

FIG. 3 is a schematic view of a power assembly of the present application;

fig. 4 is a cross-sectional view of the present application.

In the figure: 1. a bottom plate; 2. a support rod; 3. a base; 4. a chute; 5. a clamping assembly; 6. a rotating shaft; 7. a rotating lever; 8. a worm; 9. a power assembly; 10. a screw rod; 11. a worm wheel; 12. a slide block; 501. a connecting plate; 502. a telescopic rod; 503. a clamping plate; 504. a spring; 901. a motor; 902. a drive bevel gear; 903. driven bevel gears.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1-2, a circular workpiece clamping tool comprises a bottom plate 1 and a disc-shaped base 3, wherein two sides of the top surface of the bottom plate 1 are fixedly provided with supporting rods 2, two sides of the base 3 are fixedly provided with rotating shafts 6, two rotating shafts 6 are respectively rotatably arranged at one ends of the two supporting rods 2 far away from the base 3, the base 3 rotates between the two supporting rods 2, the top surface of the base 3 is provided with three T-shaped sliding grooves 4 in an annular array, three sliding grooves 4 are internally and rotatably provided with lead screws 10, three lead screws 10 are internally and rotatably provided with sliding blocks 12, the three lead screws 10 are respectively and spirally arranged in the middle of the sliding grooves 4, the top surfaces of the sliding blocks 12 are respectively provided with a clamping assembly 5, the sliding blocks 12 are of a T shape and are matched with the sliding grooves 4, the sliding blocks 12 which are of the T shape prevent the lead screws 10 from being damaged due to overlarge force acting on the lead screws 10 when the clamping assembly 5 clamps a workpiece, the power assembly 9 is arranged in the middle of the bottom surface of the base 3 and is provided with a power assembly 9 for driving the three lead screws 10 to synchronously rotate, and the power assembly 9 drives the lead screws 10 to rotate, so as to drive the clamping assembly 5 to move to clamp the workpiece.

Referring to fig. 3, the power assembly 9 includes a motor 901, a drive bevel gear 902 and a driven bevel gear 903, the motor 901 is fixedly installed in the middle of the bottom surface of the base 3, and the output shaft of the motor 901 extends into the base 3, the drive bevel gear 902 is fixedly installed on the output shaft of the motor 901, the driven bevel gear 903 is provided with three driven bevel gears, which are respectively fixedly installed at one ends of the screw rod 10 extending into the base 3, and the three driven bevel gears 903 are engaged with the drive bevel gear 902, so that the motor 901 drives the driven bevel gear 903 to rotate by driving the drive bevel gear 902, and then drives the screw rod 10 to rotate.

Referring to fig. 3, clamping assembly 5 includes the connecting plate 501 of T type, the connecting plate 501 is on a parallel with the part four corners of slider 12 all is connected with the bolt, and connecting plate 501 passes through the bolt fastening at the slider 12 top surface, can realize carrying out whole change to clamping assembly 5 according to circular work piece's specification, connecting plate 501 perpendicular to slider 12 part side four corners all rotates and install telescopic link 502, four telescopic link 502 keep away from the one end fixed mounting of connecting plate 501 and are connected with splint 503, splint 503 are the arc, guarantee splint 503 inner wall laminating completely on the work piece outer wall, and be connected with the blotter on its inner wall, the blotter can prevent damaging work piece outer wall surface when splint 503 centre gripping, the telescopic link 502 outside has all cup jointed spring 504, set up telescopic link 502, spring 504, splint 503 after contacting with the work piece, through compression spring 504 and telescopic link 502 buffering, simultaneously can judge the size of clamping force according to the compression degree of spring 504 and telescopic link 502.

Referring to fig. 4, a worm wheel 11 is coaxially and fixedly installed in the middle of a rotating shaft 6 on one side of a base 3, the worm wheel 11 is coaxially and fixedly installed in the middle of the supporting rod 2, a worm 8 is rotatably installed under the worm wheel 11 on one side of the supporting rod 2, one end of the worm 8 is meshed with the worm wheel 11 in the supporting rod 2, the worm 8 is rotated to drive the worm wheel 11 to rotate, the base 3 is driven to rotate, so that workpieces can be processed in different directions, four through holes are formed in the annular array of the other end of the base 2, a rotating rod 7 for assisting in rotating the worm 8 is slidably inserted in the through holes, and the position of the rotating rod 7 is adjusted according to the position of the base 3 in the rotating process, so that the rotating rod 7 is prevented from obstructing the rotation of the base 3.

Working principle: when the circular workpiece clamping tool is used by workers, the worm 8 is rotated firstly, the worm 8 drives the base 3 to rotate to a horizontal position, a circular workpiece is placed at the center of the top surface of the base 3, the motor 901 is started, the motor 901 drives the driving bevel gear 902 to rotate, the driving bevel gear 902 drives the three driven bevel gears 903 to rotate, the screw 10 is further driven to rotate, the three clamping assemblies 5 and the sliding blocks 12 are driven to jointly move in the sliding groove 4, after the workpiece is clamped, the worm 8 is rotated to adjust the position of the workpiece for machining, after the workpiece is machined, the worm 8 is rotated, the base 3 is rotated to the horizontal position, and the motor 901 is started to drive the clamping assemblies 5 to loosen the workpiece.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. Circular work piece centre gripping frock, including bottom plate (1) and discoid base (3), its characterized in that: the utility model discloses a base, including base (1), base (3), bottom plate (1), slider (12) are all installed to bottom plate (1) top surface both sides fixed mounting, base (3) both sides are equal fixed mounting have pivot (6), two pivot (6) rotate respectively and install the one end of keeping away from base (3) at two branches (2), base (3) top surface are annular array and open have spout (4) of three T type, three all rotate in spout (4) and install lead screw (10), three equal screw thread installs slider (12) on lead screw (10), clamping assembly (5) are installed to slider (12) top surface, base (3) bottom surface mid-mounting has three lead screw (10) synchronous pivoted power pack (9).

2. The circular workpiece clamping fixture of claim 1, wherein: the power assembly (9) comprises a motor (901), a driving bevel gear (902) and a driven bevel gear (903), wherein the motor (901) is fixedly installed in the middle of the bottom surface of the base (3), an output shaft of the motor (901) stretches into the base (3), the driving bevel gear (902) is fixedly installed on the output shaft of the motor (901), the driven bevel gear (903) is provided with three driven bevel gears, the driven bevel gears are respectively fixedly installed at one ends of a screw rod (10) stretching into the base (3), and the three driven bevel gears (903) are meshed with the driving bevel gear (902).

3. The circular workpiece clamping fixture of claim 1, wherein: clamping assembly (5) are including connecting plate (501) of T type, connecting plate (501) perpendicular to part side four corners of slider (12) all rotate and install telescopic link (502), four telescopic link (502) keep away from one end fixed mounting of connecting plate (501) and are connected with splint (503), just spring (504) have all been cup jointed in telescopic link (502) outside.

4. A circular workpiece clamping fixture as claimed in claim 3, wherein: and bolts are connected to four corners of a part of the connecting plate (501) parallel to the sliding block (12), and the connecting plate (501) is fixed on the top surface of the sliding block (12) through the bolts.

5. A circular workpiece clamping fixture as claimed in claim 3, wherein: the clamping plate (503) is arc-shaped, and the inner wall of the clamping plate is connected with a buffer pad.

6. The circular workpiece clamping fixture of claim 1, wherein: the middle part of a rotating shaft (6) at one side of the base (3) is positioned in the support rod (2), a worm wheel (11) is fixedly installed coaxially, a worm (8) is rotatably installed under the worm wheel (11) at one side of the support rod (2), one end of the worm (8) is meshed with the worm wheel (11) in the support rod (2), four through holes are formed in the other end of the worm (8) outside the support rod (2) in an annular array, and a rotating rod (7) for assisting in rotating the worm (8) is inserted in the through holes in a sliding mode.