CN220006040U

CN220006040U - Horizontal lathe fixture

Info

Publication number: CN220006040U
Application number: CN202320510733.4U
Authority: CN
Inventors: 王伊东; 王辉; 安若石
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-11-14
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a horizontal lathe fixture, which comprises a base and a plurality of clamping jaws, wherein the clamping jaws are slidably connected above the base, an inner transmission disc is rotatably connected inside the base, at least one rotating gear is rotatably connected to the base and positioned below the inner transmission disc, the outer end of the rotating gear penetrates through the side wall of the base and is provided with a driving groove, and the inner end of any rotating gear is locked through a retaining component.

Description

Horizontal lathe fixture

Technical Field

The utility model relates to the technical field of clamps, in particular to a horizontal lathe clamp.

Background

The horizontal lathe fixture is usually a device for realizing workpiece clamping and fixing by utilizing synchronous approaching movement of three clamping jaws on a plane, and for the driving of the clamping jaws, a special tool is mainly used for being inserted into a polygonal groove of a rotating gear to rotate the rotating gear, and then the internal transmission disc is used for transmission, so that synchronous movement of the clamping jaws is realized, but after workpiece clamping is carried out, the rotation of the internal transmission disc or the rotation of the rotating gear is generally not locked in a three-jaw chuck, and although the three-jaw chuck is positioned in the three-jaw chuck, the three-jaw chuck is not easy to autonomously rotate, mechanical gaps are inevitably generated in the mechanical transmission process along with long-time use of the three-jaw chuck, so that the condition of rotation of the internal transmission disc or the rotating gear can possibly occur, and the clamping jaws are clamped loose, so that the horizontal lathe fixture is provided.

Disclosure of Invention

The utility model aims to provide a horizontal lathe fixture for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a horizontal lathe fixture, includes base and a plurality of clamping jaw, a plurality of clamping jaw sliding connection just in the form evenly distributed of circumference in the top of base, the inside of base rotates and is connected with the interior driving disk that is used for driving a plurality of clamping jaw pivoted, just be located the below rotation of interior driving disk on the base and be connected with a rotation gear at least, the below of interior driving disk is equipped with round tooth, and rotation gear is connected with interior driving disk meshing, the outer end of rotation gear runs through the base lateral wall and opens there is the drive slot, and the inner of arbitrary rotation gear locks through the retaining subassembly, and the drive slot is polygonal hole groove.

Preferably, the upper side of the inner transmission disc is provided with a plane vortex-shaped thread disc, the lower side of the clamping jaw is provided with teeth meshed with the thread disc, and when the inner transmission disc rotates, the teeth below the clamping jaw are meshed with the thread disc, so that the clamping jaws synchronously move or withdraw towards the center of the base at the base.

Preferably, the retaining assembly comprises a hidden groove, the hidden groove is arranged in the base, a sliding block is slidably connected in the hidden groove through a first spring, one end of the sliding block, which is far away from the first spring, is rotationally connected with a rotating block through a torsion spring, the end part of the rotating block penetrates through the side wall of the sliding block and is vertically and fixedly connected with a one-way clamping rod, the inner end side wall of any rotating gear is fixedly connected with a bevel gear, the one-way clamping rod is movably clamped on the bevel gear and is used for realizing one-way locking of the rotating gear in the rotating direction of the driving clamping jaw clamping workpiece, a sliding rod for driving the one-way clamping rod to fall off the bevel gear is slidably connected in the rotating gear provided with the bevel gear through a second spring, the inner end of the sliding rod is movably connected with the end part of the one-way clamping rod, and the outer end of the sliding rod extends to the inside of the driving groove.

Preferably, the side wall of the sliding block is provided with an arc groove, the side wall of the rotating block is fixedly connected with a limiting block, and the limiting block is slidably connected in the arc groove to limit the rotation amplitude of the unidirectional clamping rod of the rotating block on the sliding block.

Preferably, the clamping jaw comprises a base, the base sliding connection is at the up end of base, and the downside of base is provided with the tooth, and the cooperation through tooth and thread disc makes interior drive disk to carry the base and slide on the clamping jaw, the inside rotation of base is connected with the screw rod, the top of base is equipped with the clamp platform that is used for the centre gripping work piece, clamp platform downside fixedly connected with screw thread piece, screw thread piece sliding connection is in the inside of base and with screw rod meshing connection.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, after the external tool is inserted into any driving groove, the external tool is rotated, the external tool can rotate with the rotating gear, and at the moment, the internal transmission disc drives the clamping jaw to move towards the middle part of the base, so that the clamping jaw clamps a workpiece, the helical teeth and the unidirectional clamping rod cannot be clamped in the clamping rotation process, and when the clamping jaw clamps the workpiece, the end part of the unidirectional clamping rod is abutted in the opposite tooth groove of the helical teeth, so that the rotating gear is prevented from rotating reversely, the movable loosening of the clamping jaw is effectively prevented, and the workpiece clamping is more stable.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the base, inner drive disk and rotating gear of the present utility model;

FIG. 3 is a cross-sectional exploded view of the base, clamping table, inner drive plate of the present utility model;

FIG. 4 is a cross-sectional view of the base, inner drive plate, screw plate and turning gear of the present utility model;

FIG. 5 is a cross-sectional view of the base, the rotating gear, the second spring and the slide bar of the present utility model;

FIG. 6 is a cross-sectional view of the base, inner drive disk, rotating gear and drive slot of the present utility model;

FIG. 7 is a cross-sectional view of the base, inner drive disk, rotating gear, blind slot, first spring and slider of the present utility model;

FIG. 8 is a cross-sectional exploded view of the present utility model at the rotating gear, drive slot, slide block, rotating block, one-way clamping bar and slide bar;

FIG. 9 is a cross-sectional exploded view of the slider, turning block, one-way clamping bar, arcuate slot and stopper of the present utility model.

In the figure: 1. the device comprises a base, 2, clamping jaws, 201, a base, 202, clamping platforms, 203, a threaded block, 204, a screw rod, 3, an inner transmission disc, 301, a threaded disc, 4, a rotating gear, 401, a driving groove, 5, a retaining component, 501, a hidden groove, 502, a first spring, 503, a sliding block, 504, a torsion spring, 505, a rotating block, 506, a one-way clamping rod, 507, helical teeth, 508, a second spring, 509, a sliding rod, 6, an arc groove, 7 and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-9, the present utility model provides a technical solution: the utility model provides a horizontal lathe fixture, includes base 1 and a plurality of clamping jaw 2, a plurality of clamping jaw 2 sliding connection just evenly distributed in the form of circumference in the top of base 1, the inside rotation of base 1 is connected with and is used for driving a plurality of clamping jaw 2 pivoted interior driving disk 3, the below that just is located interior driving disk 3 on the base 1 rotates at least and is connected with a rotation gear 4, and the below of interior driving disk 3 is equipped with round tooth, and rotation gear 4 is connected with interior driving disk 3 meshing, the outer end of rotation gear 4 runs through base 1 lateral wall and opens and have drive slot 401, and the inner of arbitrary rotation gear 4 locks through the retaining subassembly 5, and drive slot 401 is polygonal hole groove.

Specifically, the upper side surface of the inner driving disc 3 is provided with a plane vortex-shaped threaded disc 301, the lower side surface of the clamping jaw 2 is provided with teeth meshed with the threaded disc 301, and when the inner driving disc 3 rotates, as the teeth below the clamping jaw 2 are meshed with the threaded disc 301, a plurality of clamping jaws 2 synchronously move or withdraw towards the center of the base 1 at the base 1;

after the external tool is inserted into the driving slot 401, when the external tool is rotated, the external tool is caused to rotate with the rotating gear 4, and when the rotating gear 4 rotates, the rotating gear 4 rotates with the inner driving disc 3, so that the inner driving disc 3 moves on the upper side surface of the base 1 with the clamping jaw 2, and the workpiece is clamped or released.

As shown in fig. 4 to 9, after the clamping jaw 2 clamps a workpiece, in order to avoid the occurrence of the phenomenon that the clamping jaw 2 is clamped and loosened in the rotating process of the base 1, specifically, the retaining assembly 5 includes a hidden groove 501, the hidden groove 501 is opened in the base 1, a sliding block 503 is slidably connected in the hidden groove 501 through a first spring 502, one end of the sliding block 503 far away from the first spring 502 is rotationally connected with a rotating block 505 through a torsion spring 504, the end of the rotating block 505 penetrates through the side wall of the sliding block 503 and is vertically and fixedly connected with a unidirectional clamping rod 506, the inner end side wall of any rotating gear 4 is fixedly connected with a bevel gear 507, the unidirectional clamping rod 506 is movably clamped on the bevel gear 507 to realize unidirectional locking of the rotating gear 4 in the rotating direction of driving the clamping jaw 2 to clamp the workpiece, a sliding rod 509 for driving the unidirectional clamping rod 506 to drop and be clamped with the bevel gear 507 is slidably connected in the rotating gear 4 through a second spring 508, the inner end of the sliding rod 509 is movably connected with the end of the unidirectional clamping rod 506, and the outer end of the sliding rod 509 extends to the driving groove 401;

when the clamping jaw 2 is used for clamping a workpiece, an external tool is inserted into any driving groove 401, after the external tool is rotated, the external tool can rotate with the rotating gear 4, at the moment, the inner transmission disc 3 moves towards the middle of the base 1 with the clamping jaw 2, then the clamping of the clamping jaw 2 to the workpiece is realized, in the clamping rotation process, the inclined teeth 507 and the unidirectional clamping rods 506 can not be clamped, the unidirectional clamping rods 506 can be continuously changed to be clamped at the positions on the inclined teeth 507 (when the rotating gear 4 rotates in the rotation direction, the inclined teeth 507 can stir the unidirectional clamping rods 506 to swing with the rotating block 505, the rotating block 505 is reset through the torsion springs 504, so that the clamping connection between the unidirectional clamping rods 506 and the inclined teeth 507 can be ensured, when the clamping jaw 2 clamps the workpiece, the end parts of the unidirectional clamping rods 506 are abutted in opposite tooth grooves of the inclined teeth 507, thus preventing the rotating gear 4 from reversely rotating, effectively preventing the clamping jaw 2 from moving and releasing, and enabling the workpiece to be clamped more firmly;

when the workpiece needs to be loosened, an external tool is inserted into the driving groove 401 below the arrow mark, as shown in fig. 1, after the external tool is inserted into the driving groove 401, the sliding rod 509 is pushed inwards by the external tool, as shown in fig. 5, at the moment, the inner end of the sliding rod 509 is pushed against the end of the rotating block 505, the rotating block 505 and the sliding frame 503 are driven to compress the first spring 502 and slide towards the inner part of the hidden groove 501, at the moment, the unidirectional clamping rod 506 slides along with the rotating block 505, the unidirectional clamping block 506 is separated from the helical teeth 507, in this state, the rotating gear 4 can rotate positively and negatively, at the moment, the rotating gear 4 is reversely rotated, after the internal driving disc 3 is driven to reversely rotate, the clamping jaw 2 can slide towards the center far away from the base 1, and then the workpiece can be removed.

As shown in fig. 9, in order to limit the rotation amplitude of the rotating block 505 and the unidirectional clamping rod 506 on the sliding block 503, specifically, an arc-shaped groove 6 is formed on the side wall of the sliding block 503, a limiting block 7 is fixedly connected to the side wall of the rotating block 505, and the limiting block 7 is slidably connected to the inside of the arc-shaped groove 6 to limit the rotation amplitude of the rotating block 505 and the unidirectional clamping rod 506 on the sliding block 503;

when the rotating block 505 rotates on the sliding block 503, the limiting block 7 slides in the arc-shaped groove 6, at this time, the rotating block 505 and the unidirectional clamping rod 506 can be effectively limited by sliding of the limiting block 7 in the arc-shaped groove 6, so that the unidirectional clamping rod 506 is prevented from being clamped with the inclined teeth 507 unstably after the rotating amplitude of the unidirectional clamping rod 506 is overlarge.

As shown in fig. 1 and 3, in order to be able to clamp a larger workpiece, specifically, the clamping jaw 2 includes a base 201, the base 201 is slidably connected to an upper end surface of the base 1, a lower side surface of the base 201 is provided with teeth, the inner driving disk 3 is urged to slide on the clamping jaw 2 by cooperation of the teeth and the threaded disk 301, a screw 204 is rotatably connected to an inside of the base 201, a clamping table 202 for clamping the workpiece is arranged above the base 201, a threaded block 203 is fixedly connected to a lower side surface of the clamping table 202, and the threaded block 203 is slidably connected to an inside of the base 201 and is engaged with the screw 204;

before use, the positions of the clamping tables 202 on the base 201 are adjusted according to the sizes of workpieces, the adjusting process is that the screw 204 is rotated, the screw 204 drives the threaded blocks 203 to slide in the base 201, at the moment, the threaded blocks 203 can move on the base 201 with the clamping tables 202, the positions of the clamping tables 202 on the base 201 are changed, the distance between the clamping tables 202 on each base 201 can be adjusted, workpieces with different sizes can be adjusted, scale marks are further arranged on the base 1, the sliding length of the clamping tables 202 can be accurately known through the scale marks, and therefore the adjusting positions of the clamping tables 202 on each base 201 are the same, and the eccentric phenomenon of clamped workpieces is prevented.

Claims

1. The utility model provides a horizontal lathe fixture, includes base (1) and a plurality of clamping jaw (2), a plurality of clamping jaw (2) sliding connection just evenly distributed in the form of circumference in the top of base (1), the inside rotation of base (1) is connected with and is used for driving a plurality of clamping jaw (2) pivoted interior driving disk (3), its characterized in that: the utility model discloses a bevel gear (507) is connected with a rotating gear (4) in the rotation of just being located the below of interior driving disk (3) on base (1), the outer end of rotating gear (4) runs through base (1) lateral wall and opens and have drive slot (401), and the inner of arbitrary rotating gear (4) is locked through stopping subassembly (5), the upside of interior driving disk (3) is equipped with thread disc (301) that is plane vortex form, tooth with thread disc (301) meshing is seted up to the downside of clamping jaw (2), stopping subassembly (5) include blind groove (501), the inside at base (1) is seted up to blind groove (501), the inside of blind groove (501) is through first spring (502) sliding connection slider (503), the one end that first spring (502) were kept away from to slider (503) is connected with rotary block (505) through torsional spring (504) rotation, the tip of rotary block (505) runs through the lateral wall of slider (503) and perpendicular fixedly connected with unidirectional clamping rod (506), the tooth that meshes with thread disc (508) on arbitrary rotating gear (2) lateral wall (508), the inside of two bevel gear (507) are connected with in a sliding connection through the inside bevel gear (507) in a sliding connection (507), the inner end of the sliding rod (509) is movably connected with the end part of the unidirectional clamping rod (506), and the outer end of the sliding rod (509) extends to the inside of the driving groove (401).

2. A horizontal lathe clamp according to claim 1, characterised in that: an arc-shaped groove (6) is formed in the side wall of the sliding block (503), a limiting block (7) is fixedly connected to the side wall of the rotating block (505), and the limiting block (7) is slidably connected to the inside of the arc-shaped groove (6).

3. A horizontal lathe clamp according to any one of claims 1-2, characterised in that: clamping jaw (2) are including base (201), base (201) sliding connection is at the up end of base (1), the inside rotation of base (201) is connected with screw rod (204), the top of base (201) is equipped with clamp platform (202) that are used for the centre gripping work piece, clamp platform (202) downside fixedly connected with screw thread piece (203), screw thread piece (203) sliding connection is in the inside of base (201) and with screw rod (204) meshing connection.