CN216730710U

CN216730710U - Workpiece clamp for machining

Info

Publication number: CN216730710U
Application number: CN202123428512.2U
Authority: CN
Inventors: 王赟
Original assignee: Liaoning Institute of Science and Technology
Current assignee: Liaoning Institute of Science and Technology
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-14
Anticipated expiration: 2031-12-31

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

Workpiece clamp for machining

Technical Field

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

Background

The machining is a process of changing the external dimensions or properties of a workpiece by a mechanical device, and in the machining manufacturing industry, a fixture plays a very important role, and the fixture is a device, also called a fixture, for fixing a machining object to occupy a correct position to receive construction or detection in the machining process. When a workpiece is produced and machined, the workpiece needs to be positioned and fixed so as to be convenient for machining the workpiece, ensure that the workpiece is always in a correct position relative to a machine tool, a cutter and the like, and ensure the quality of the workpiece. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

After a large amount of research, it is found that many of the existing work holders install a power device for controlling the movement of the work holder in the moving direction of the chuck, so that the space in the moving direction of the chuck is occupied, other mechanisms cannot be installed in the places, and when an operator uses the work holder to clamp a workpiece, the sight of the operator is blocked by the chuck and is inconvenient to observe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a workpiece clamp for machining, which is used for solving the problems that the workpiece clamp occupies the space in the moving direction of a chuck, and the sight of the workpiece clamp is blocked by the chuck and is inconvenient to observe.

In order to achieve the purpose, the utility model adopts the technical scheme that: a workpiece clamp for machining 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; the object placing table is fixedly installed in the middle of the base, the number of the guide rails is two, the two guide rails are installed on the base and are respectively arranged on two sides of the object placing table, the two guide rails are parallel to each other and extend in the X direction, the two sliding tables are respectively installed on the guide rails in a sliding mode, a chuck is installed on the top surface of each sliding table, a V-shaped notch used for clamping a curved surface of the end portion of the rod-shaped workpiece is formed in one side, opposite to the two chucks, of each chuck, a threaded hole is formed in the object placing table, the opening direction of each threaded hole is the Y direction and horizontally penetrates through the object placing table, and the Y direction and the X direction are perpendicular to each other in the horizontal plane; the connecting block is arranged on the side face of the object placing table, the head of the threaded rod rotates in a threaded hole, the tail of the threaded rod is a light section, the threaded rod is rotatably arranged in the connecting block through the tail light section, two sliding rods are arranged and are respectively arranged on two sides of the connecting block, the sliding table is provided with a through hole, the sliding rods are inserted in the through holes and are in sliding fit with the through holes, and an included angle between vertical projections of the threaded rod and the sliding rods is an acute angle; when the threaded rod rotates, the connecting block moves towards the object placing table and drives the sliding rod to drive the two sliding tables to move oppositely, so that the V-shaped notch on the chuck clamps the workpiece.

Preferably, each lower surface of the sliding table is provided with a groove, the groove is in the X direction and horizontally penetrates through the sliding table, the cross section of the groove is matched with that of the guide rail, and the guide rail is embedded into 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 pulleys are in contact with the base.

Preferably, the tail light section of the threaded rod penetrates through the connecting 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 the utility model are as follows:

the moving direction of the threaded rod is vertical to the moving direction of the chuck, so that the space in the moving direction of the chuck is not occupied; an operator can directly see the workpiece when the workpiece is clamped, and the sight of the operator cannot be blocked by the chuck; the utility model has self-locking property and can better realize the effect of clamping the workpiece.

Drawings

FIG. 1 is a schematic view of an axial measurement configuration of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is a left side view of the present invention;

fig. 5 is a schematic top view of the present invention.

The reference numerals include:

1-base, 2-object placing table, 21-threaded hole, 3-guide rail, 4-sliding table, 41-through hole, 42-groove, 43-pulley, 5-chuck, 51-V-shaped notch, 6-connecting block, 7-threaded rod, 8-sliding rod, 9-motor and 10-torsion sensor.

Detailed Description

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

Referring to fig. 1-5, the present invention provides a technical solution: a workpiece clamp for machining 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 object placing table 2 is fixedly arranged in the middle of the base 1, a workpiece to be machined is firstly placed on the upper surface of the object placing table 2, two guide rails 3 are arranged, the two guide rails 3 are arranged on the base 1 and are respectively arranged on two sides of the object placing table 2, the two guide rails 3 are mutually parallel and extend towards the X direction, the two sliding tables 4 are respectively arranged on the guide rails 3 in a sliding mode, a clamping head 5 is arranged on the top surface of each sliding table 4, a V-shaped notch 51 used for clamping the curved surface of the end part of the rod-shaped workpiece is formed in one side, opposite to the two clamping heads 5, the V-shaped notch 51 is further provided with a square groove which is communicated up and down at the turning position, the object placing table 2 is provided with a threaded hole 21, the opening direction of the threaded hole 21 is the Y direction and horizontally penetrates through the object placing table 2, and the Y direction and the X direction are mutually perpendicular 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 the threaded hole 21, the tail of the threaded rod 7 is a light section, the threaded rod 7 is rotatably arranged 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, the sliding table 4 is provided with a through hole 41, 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 between 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. When the threaded rod 7 rotates reversely, the connecting block 6 is far away from the object placing table 2 and drives the sliding rod 8 to drive the two sliding tables 4 to be far away from each other, so that the chuck 5 loosens the workpiece. The utility model has self-locking property because the moving direction of the threaded rod 7 is vertical to the moving direction of the chuck 5.

Specifically, the lower surface of each slide table 4 is provided with a groove 42, the direction of the groove 42 is the X direction and horizontally penetrates through the slide table 4, the cross-sectional shape of the groove 42 matches the cross-sectional shape of the guide rail 3, and the guide rail 3 is embedded in the groove 42. The guide rail 3 is fitted into the groove 42 to be slidably fitted to the inner surface of the groove 42, and the groove 42 can restrict the movement of the slide table 4 in the X direction at all times. The cross-sectional shape of the groove 42 can be various, and is not limited to the rectangular shape in the present 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 that the slide table 4 and the collet 5 can be always restricted by the guide rail 3 during the movement without being separated from the guide rail 3.

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

Specifically, 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, and the motor 9 can provide power for driving the threaded rod 7 to rotate.

Specifically, the output end of the motor 9 is provided with the torque sensor 10, and the torque sensor 10 can sense the force transmitted to the output end of the motor 9 by the chuck 5 after clamping the workpiece, so as to judge whether the motor 9 should stop rotating, and prevent the damage to the workpiece clamp caused by the continuous work of the motor 9 after clamping the workpiece.

The working principle is as follows: put the upper surface of putting thing platform 2 with the shaft-like work piece of needs processing, open motor 9 corotation, drive threaded rod 7 corotation, connecting block 6 moves and drives two 4 opposite directions of sliding stand of 8 drive of slide bar towards putting thing platform 2 to make the V-arrangement breach 51 centre gripping work piece on the chuck 5. When the threaded rod 7 rotates reversely, the connecting block 6 is far away from the object placing table 2 and drives the sliding rod 8 to drive the two sliding tables 4 to be far away from each other, so that the chuck 5 loosens the workpiece.

The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the utility model may be made by those skilled in the art without departing from the spirit of the utility model, which falls within the scope of the claims of this patent.

Claims

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).