CN216730710U - A workpiece fixture for machining - Google Patents

Abstract

The utility model relates to the technical field of machining, in particular to a workpiece clamp for machining, which comprises a base, an object placing table, a guide rail, a sliding table, a chuck, a connecting block, a threaded rod and a sliding rod, wherein the object placing table is arranged on the base; wherein put thing platform fixed mounting at the middle part of base, the guide rail has two, two guide rails are all installed on the base and are respectively putting the both sides of thing platform, but the sliding stand has two and slidable mounting respectively on the guide rail, the chuck is all installed to the top surface of each sliding stand, it is equipped with the screw hole to put the thing platform, the connecting block sets up the side of putting the thing platform, the screw rod head is rotatory in the screw hole, the threaded rod afterbody is the light section, the threaded rod passes through afterbody light section rotatable mounting in the connecting block, the slide bar has two and installs the both sides at the connecting block respectively, the sliding stand is equipped with the through-hole, the slide bar cartridge is in the through-hole, and with through-hole sliding fit. The utility model does not occupy the space of the chuck in the moving direction; the sight can not be blocked, and the effect of clamping the workpiece can be better realized.

Description

A workpiece fixture for machining

technical field

The utility model relates to the technical field of machining, in particular to a workpiece fixture used for machining.

Background technique

Machining refers to the process of changing the size or performance of the workpiece through a mechanical device. In the machining and manufacturing industry, the fixture plays a very important role. A device that occupies the correct position to accept construction or inspection, also known as a fixture. When the workpiece is in production and processing, it needs to be positioned and fixed to facilitate the processing of the workpiece, and to ensure that the workpiece is always in the correct position relative to the machine tool, tool, etc., to ensure the quality of the workpiece. In a broad sense, any process in the process, the device used to quickly, easily and safely install the workpiece can be called a fixture.

After a lot of research, it is found that many of the existing workpiece fixtures install the power device that controls the movement of the workpiece fixture in the moving direction of the chuck, which will occupy the space in the moving direction of the chuck, so that other mechanisms cannot be installed in these places, and When the operator uses the fixture to clamp the workpiece, the sight will be blocked by the chuck and it is not convenient to observe.

Utility model content

The purpose of the utility model is to provide a workpiece fixture for machining, which is used to solve the problems that the workpiece fixture occupies space in the moving direction of the chuck, and the sight is blocked by the chuck, which is inconvenient for observation.

In order to achieve the above purpose, the technical scheme adopted by the present invention is: a workpiece fixture used for machining, including a base, a storage table, a guide rail, a sliding table, a chuck, a connecting block, a threaded rod and a sliding rod; The table is fixedly installed in the middle of the base, and there are two guide rails. The two guide rails are both installed on the base and are respectively on both sides of the storage table. The two guide rails are parallel to each other and face X. Extending in the direction of the sliding table, there are two sliding tables and they can be slidably installed on the guide rails. A chuck is installed on the top surface of each sliding table, and the opposite sides of the two chucks are provided for clamping The V-shaped notch of the curved surface of the end of the rod-shaped workpiece, the object table is provided with a threaded hole, the opening direction of the threaded hole is the Y direction and horizontally penetrates the object table, and the Y direction and the X direction are in the same direction. The horizontal planes are perpendicular to each other; the connecting block is arranged on the side of the object table, the head of the threaded rod rotates in the threaded hole, the tail of the threaded rod is an optical segment, and the threaded rod can be rotatably installed through the optical segment at the tail In the connecting block, there are two sliding rods installed on both sides of the connecting block respectively, the sliding table is provided with a through hole, the sliding rod is inserted in the through hole, and is connected with the through hole. The through hole is slidingly matched, and the included angle between the threaded rod and the vertical projection of the sliding rod is an acute angle; when the threaded rod rotates, the connecting block moves toward the storage table and drives the The sliding rod drives the two sliding tables to move oppositely, so that the V-shaped notch on the collet clamps the workpiece.

Preferably, the lower surface of each sliding table is provided with a groove, the direction of the groove is the X direction and runs through the sliding table horizontally, and the cross-sectional shape of the groove matches the cross-sectional shape of the guide rail. , the guide rail is embedded in the groove.

Preferably, the length of the guide rail in the X direction is greater than the length of the groove in the X direction.

Preferably, the lower surface of each sliding table is provided with a plurality of pulleys, and the bottoms of the plurality of pulleys are in contact with the base.

Preferably, the tail light segment of the threaded rod passes through the connection block and is fixedly connected with the output end of the motor.

Preferably, the output end of the motor is provided with a torque sensor.

The beneficial effects of using the utility model are:

In the utility model, the moving direction of the threaded rod is perpendicular to the moving direction of the collet, and does not occupy the space in the moving direction of the collet; the operator can directly see the workpiece when tightening the workpiece, and the sight will not be blocked by the collet; The utility model has self-locking properties and can better realize the effect of clamping the workpiece.

Description of drawings

Fig. 1 is the axonometric structure schematic diagram of the utility model;

Fig. 2 is the front view structure schematic diagram of the utility model;

Fig. 3 is the rear view structure schematic diagram of the utility model;

Fig. 4 is the left side view structure schematic diagram of the utility model;

Fig. 5 is the top view structure schematic diagram of the utility model.

Reference numerals include:

1-Base, 2-Stand, 21-Threaded hole, 3-Guide rail, 4-Sliding table, 41-Through hole, 42-Groove, 43-Pulley, 5-Clamp, 51-V-shaped notch, 6- Connection block, 7-threaded rod, 8-slide rod, 9-motor, 10-torque sensor.

Detailed ways

In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution will be further described in detail below with reference to the specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

1-5, the present utility model provides a technical solution: a workpiece fixture for machining, comprising a base 1, an object table 2, a guide rail 3, a sliding table 4, a collet 5, a connecting block 6, and a threaded rod 7 and sliding rod 8; wherein the object table 2 is fixedly installed in the middle of the base 1, the workpiece to be processed is first placed on the upper surface of the object table 2, there are two guide rails 3, and the two guide rails 3 are installed on the base 1 and On both sides of the storage table 2, two guide rails 3 are parallel to each other and extend in the X direction. There are two sliding tables 4 and they can be slidably installed on the guide rails 3. The top surface of each sliding table 4 is equipped with a chuck 5. , the opposite sides of the two chucks 5 are provided with a V-shaped notch 51 for clamping the curved surface of the end of the rod-shaped workpiece, and the V-shaped notch 51 is also provided with a square groove that penetrates up and down at the turning point, and the storage table 2 is provided with threaded holes 21. The opening direction of the threaded hole 21 is the Y direction and horizontally penetrates the object table 2. The Y direction and the X direction are perpendicular to each other in the horizontal plane; Among them, the tail of the threaded rod 7 is an optical segment, the threaded rod 7 can be rotatably installed in the connecting block 6 through the tail optical segment, there are two sliding rods 8 and are respectively installed on both sides of the connecting block 6, and the sliding table 4 is provided with a through hole 41. The sliding rod 8 is inserted into the through hole 41 and is slidably matched with the through hole 41. The angle between the vertical projection of the threaded rod 7 and the sliding rod 8 is an acute angle; when the threaded rod 7 rotates, the connecting block 6 Move toward the object table 2 and drive the sliding rod 8 to drive the two sliding tables 4 to move in opposite directions, so that the V-shaped notch 51 on the collet 5 clamps the workpiece. When the threaded rod 7 rotates in the opposite direction, the connecting block 6 moves away from the storage table 2 and drives the sliding rod 8 to drive the two sliding tables 4 away from each other, so that the chuck 5 releases the workpiece. Since the moving direction of the threaded rod 7 is perpendicular to the moving direction of the collet 5, the present invention has self-locking properties.

Specifically, the lower surface of each sliding table 4 is provided with a groove 42, the direction of the groove 42 is the X direction and horizontally penetrates the sliding table 4, and the cross-sectional shape of the groove 42 matches the cross-sectional shape of the guide rail 3. The guide rail 3 embedded in the groove 42 . The guide rails 3 are embedded in the grooves 42 to slide in cooperation with the inner surface of the grooves 42 , and the grooves 42 can limit the movement of the sliding table 4 in the X direction all the time. The cross-sectional shape of the groove 42 can be various, and is not limited to the rectangle in this embodiment.

Specifically, the length of the guide rail 3 in the X direction is greater than the length of the groove 42 in the X direction, so as to ensure that the sliding table 4 and the chuck 5 can always be restricted by the guide rail 3 during the movement process and will not be separated from the Rail 3.

Specifically, a plurality of pulleys 43 are provided on the lower surface of each sliding table 4, and the bottoms of the plurality of pulleys 43 are in contact with the base 1. The rollers 43 will reduce the frictional force of the sliding table 4 during the moving process, and will share the sliding table 4. 4. The pressure on the guide rail 3 reduces the friction loss between the sliding table 4 and the guide rail 3.

Specifically, the tail optical segment of the threaded rod 7 passes through the connection block 6 and is fixedly connected to the output end of the motor 9, and the motor 9 can provide the power to drive the threaded rod 7 to rotate.

Specifically, the output end of the motor 9 is provided with a torque sensor 10. The torque sensor 10 can sense the magnitude of the force transmitted by the chuck 5 to the output end of the motor 9 after clamping the workpiece, so as to judge whether the motor 9 should stop rotating to prevent the After the workpiece is tightened, the motor 9 continues to work, causing damage to the workpiece fixture.

Working principle: place the rod-shaped workpiece to be processed on the upper surface of the object table 2, turn on the motor 9 to rotate forward, drive the threaded rod 7 to rotate forward, the connecting block 6 moves toward the object table 2 and drives the sliding rod 8 to drive the two sliding tables 4. Move in opposite directions so that the V-shaped notch 51 on the collet 5 clamps the workpiece. When the threaded rod 7 rotates in the opposite direction, the connecting block 6 moves away from the storage table 2 and drives the sliding rod 8 to drive the two sliding tables 4 away from each other, so that the chuck 5 releases the workpiece.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the technical content, many changes can be made in the specific implementation and application scope, as long as these changes do not depart from the present invention. All ideas belong to the protection scope of this patent.

Claims (6)

1. The utility model provides a work piece holder that machining used for the centre gripping both ends are the shaft-like work piece of curved surface, its characterized in that: comprises a base (1), an object placing table (2), a guide rail (3), a sliding table (4), a chuck (5), a connecting block (6), a threaded rod (7) and a sliding rod (8); the article placing table (2) is fixedly installed in the middle of the base (1), two guide rails (3) are arranged, the two guide rails (3) are installed on the base (1) and are respectively arranged on two sides of the article placing table (2), the two guide rails (3) are parallel to each other and extend towards the X direction, the two sliding tables (4) are respectively installed on the guide rails (3) in a sliding mode, a chuck (5) is installed on the top surface of each sliding table (4), a V-shaped notch (51) used for clamping the curved surface of the end portion of the rod-shaped workpiece is formed in one side, opposite to the two chucks (5), of each sliding table, a threaded hole (21) is formed in each article placing table (2), the opening direction of each threaded hole (21) is the Y direction and horizontally penetrates through the article placing table (2), and the Y direction and the X direction are perpendicular to each other in the horizontal plane;

the connecting block (6) is arranged on the side face of the object placing table (2), the head of the threaded rod (7) rotates in a threaded hole (21), the tail of the threaded rod (7) is a light section, the threaded rod (7) is rotatably installed in the connecting block (6) through the tail light section, two sliding rods (8) are arranged on two sides of the connecting block (6) respectively, a through hole (41) is formed in the sliding table (4), the sliding rods (8) are inserted in the through holes (41) and are in sliding fit with the through holes (41), and an included angle formed by vertical projections of the threaded rod (7) and the sliding rods (8) is an acute angle;

when the threaded rod (7) rotates, the connecting block (6) moves towards the object placing table (2) and drives the sliding rod (8) to drive the two sliding tables (4) to move oppositely, so that the V-shaped notch (51) on the chuck (5) clamps a workpiece.

2. A workpiece holder for use in machining according to claim 1, characterised in that: each the lower surface of sliding table (4) all is equipped with recess (42), recess (42) direction is X direction and the level runs through sliding table (4), the cross sectional shape of recess (42) with the cross sectional shape phase-match of guide rail (3), guide rail (3) embedding in recess (42).

3. A workpiece holder for machining use according to claim 2, characterised in that: the length of the guide rail (3) in the X direction is greater than the length of the groove (42) in the X direction.

4. A workpiece holder for use in machining according to claim 1, characterised in that: each lower surface of sliding table (4) all is equipped with a plurality of pulleys (43), a plurality of the bottom of pulley (43) with base (1) contact.

5. A workpiece holder for use in machining according to claim 1, characterised in that: the tail light section of the threaded rod (7) penetrates through the connecting block (6) and is fixedly connected with the output end of the motor (9).

6. A workpiece holder for use in machining according to claim 5, characterised in that: and a torque sensor (10) is arranged at the output end of the motor (9).

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