CN219169644U

CN219169644U - Adjustable positioning device

Info

Publication number: CN219169644U
Application number: CN202320146483.0U
Authority: CN
Inventors: 杨荣刚
Original assignee: Harbin Zenghong Machinery Equipment Manufacturing Co ltd
Current assignee: Harbin Zenghong Machinery Equipment Manufacturing Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-06-13
Anticipated expiration: 2033-01-30

Abstract

The utility model provides an adjustable positioning device, and belongs to the technical field of chuck clamps. The chuck comprises a chuck body, a plurality of grooves formed in the chuck body, and a plurality of claw structures respectively and slidably connected to the inner side walls of the grooves, wherein each claw structure comprises a base claw slidably connected to the inner side walls of the grooves, the top of each base claw is slidably connected with a positioning claw, the opposite surfaces of each base claw and each positioning claw are connected through a limiting structure, the upper surface of each base claw is provided with a plurality of limiting hole grooves, a sliding cavity is formed in each positioning claw, the inner side walls of the sliding cavities are slidably connected with positioning blocks, the bottom ends of the positioning blocks penetrate through the bottoms of the positioning claws and are propped into the corresponding limiting hole grooves, and the side walls of the positioning claws are further provided with lifting pieces for controlling the positioning blocks to move up and down. When the two parts with larger size difference are processed successively, the positioning claw can be quickly adjusted, the stressing rod is not required to be rotated excessively to adjust the positioning claw, and time and labor are saved.

Description

Adjustable positioning device

Technical Field

The utility model relates to the field of chuck clamps, in particular to an adjustable positioning device.

Background

The chuck is a mechanical device on a machine tool for clamping a workpiece. The machine tool accessory for clamping and positioning the workpiece by utilizing the radial movement of the movable clamping jaws uniformly distributed on the chuck body is widely applied to the field of machining of mechanical parts.

The chuck generally comprises a chuck body, movable claws and a claw driving mechanism. The stressing rod is inserted into the adjusting hole on the chuck, and the clamping jaw can be driven to move radially to clamp the workpiece by rotating the stressing rod. In the prior art, the stressing rod needs to rotate for a plurality of weeks to adjust the jaw to move a small distance, when two parts with larger size difference are processed, the position of the jaw adjusted during the processing of the previous workpiece is not suitable for the clamping requirement required by the part of the next step, the jaw cannot be quickly adjusted to a proper position, the stressing rod needs to be continuously rotated to adjust the position of the jaw, the adjusting efficiency is poor, and the processing efficiency of the workpiece is affected.

How to develop an adjustable positioning device to improve these problems is a urgent problem for those skilled in the art.

Disclosure of Invention

In order to overcome the defects, the utility model provides an adjustable positioning device, which aims to solve the problem that the clamping jaws on a chuck cannot be quickly adjusted in position.

The utility model is realized in the following way:

the utility model provides an adjustable positioning device which comprises a chuck body, a plurality of grooves formed in the chuck body and a plurality of claw structures respectively connected to the inner side walls of the grooves in a sliding mode, wherein each claw structure comprises a base claw connected to the inner side walls of the grooves in a sliding mode, a positioning claw is connected to the top of each base claw in a sliding mode, the opposite faces of each base claw and each positioning claw are connected through a limiting structure, a plurality of limiting hole grooves are formed in the upper surface of each base claw, a sliding cavity is formed in each positioning claw, a positioning block is connected to the inner side wall of each sliding cavity in a sliding mode, the bottom end of each positioning block penetrates through the bottom of each positioning claw and abuts against the corresponding limiting hole groove, and a lifting piece for controlling the positioning block to move up and down is further arranged on the side wall of each positioning claw.

Preferably, the limit structure comprises a limit chute arranged on the upper surface of the base claw, a limit slide bar is fixedly connected with the lower surface of the positioning claw, the limit slide bar is embedded into the limit chute, and the limit slide bar is in sliding connection with the inner side wall of the limit chute.

Preferably, the positioning block comprises a sliding block which is connected to the inner side wall of the sliding cavity in a sliding way, the bottom of the sliding block is fixedly connected with a convex block, and the bottom end of the convex block penetrates through the bottom of the positioning claw and is propped into the opposite limiting hole groove.

Preferably, the mounting groove is formed in the side wall of the positioning claw, the lifting piece penetrates through the opposite side wall of the mounting groove and the sliding cavity, one end of the lifting piece is located in the sliding cavity, the other end of the lifting piece is located outside the positioning claw, and a spring is fixedly connected between one end of the lifting piece located outside the positioning claw and the opposite inner side wall of the mounting groove.

Preferably, the lifting member comprises a plug which is arranged on the opposite side wall of the installation groove and the sliding cavity in a penetrating manner, one end of the plug is positioned in the sliding cavity, the other end of the plug is positioned outside the positioning claw, one end of the plug positioned outside the positioning claw is connected with the opposite inner side wall of the installation groove through a spring, a chute is formed in one end of the plug positioned inside the sliding cavity, a sliding rod is fixedly connected with the top end of the sliding rod, the sliding rod is positioned inside the chute, and the sliding rod is in sliding connection with the inner side wall of the chute.

Preferably, one end of the plug, which is positioned outside the positioning claw, is fixedly connected with a button cap, and the spring is fixedly connected on the opposite side walls of the button cap and the mounting groove.

The beneficial effects of the utility model are as follows: through cooperation use between base claw, locating claw, spacing hole groove, locating piece, slide bar and the hoisting piece, when the position of needs large-span regulation locating claw, can hold the both sides of holding between fingers the locating claw and press the button cap, promote the plug to the smooth intracavity. Through the cooperation of chute and slide bar, can drive the locating piece and remove from the spacing hole groove that the base claw upper surface is relative, cancel the locking between base claw and the locating claw, but the relative position of quick adjustment base claw and locating claw this moment, with the locating claw quick adjustment to the suitable position of part clamping demand. Then, the button cap is released, and the positioning block can lock between the base claw and the positioning claw again. The position of the groove is finely adjusted through the stressing rod, so that the positioning claw is driven to rapidly and stably clamp the workpiece, when two parts with larger size difference are processed successively, the stressing rod does not need to be rotated too much to adjust the position of the claw structure, the positioning claw is convenient to adjust, time and labor are saved, and the workpiece processing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an adjustable positioning device according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a jaw structure of an adjustable positioning device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a base jaw of an adjustable positioning device according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a positioning pawl of an adjustable positioning device according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a jaw structure of an adjustable positioning device according to an embodiment of the present utility model;

fig. 6 is a side cross-sectional view of a jaw structure of an adjustable positioning device according to an embodiment of the present utility model.

In the figure: 1. a chuck body; 2. a groove; 3. a base claw; 4. a positioning claw; 5. limiting sliding grooves; 6. a limit slide bar; 7. limiting hole grooves; 8. a sliding cavity; 9. a chute; 10. a slide block; 11. a bump; 12. a mounting groove; 13. a plug; 14. a slide bar; 15. a button cap; 16. and (3) a spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, an adjustable positioning device comprises a chuck body 1, a plurality of grooves 2 formed in the chuck body 1, and a plurality of claw structures respectively and slidably connected to the inner side walls of the grooves 2, wherein each claw structure comprises a base claw 3 slidably connected to the inner side walls of the grooves 2, a positioning claw 4 is slidably connected to the top of the base claw 3, the base claw 3 is connected with the opposite surface of the positioning claw 4 through a limiting structure, the limiting structure comprises a limiting sliding groove 5 formed in the upper surface of the base claw 3, a limiting sliding bar 6 is fixedly connected to the lower surface of the positioning claw 4, the limiting sliding bar 6 is embedded into the limiting sliding groove 5, and the limiting sliding bar 6 is slidably connected with the inner side walls of the limiting sliding groove 5. As shown in fig. 3 and 4, the limiting slide bar 6 and the limiting slide groove 5 are set to be in the shapes shown in the drawings, and after the limiting slide bar 6 is embedded into the limiting slide groove 5, the positioning claw 4 can be limited to slide transversely on the base claw 3, so that the base claw 3 and the positioning claw 4 are prevented from being separated longitudinally.

Referring to fig. 3-6, the upper surface of the base claw 3 is provided with a plurality of limiting hole grooves 7, the inside of the positioning claw 4 is provided with a sliding cavity 8, the inner side wall of the sliding cavity 8 is slidably connected with a positioning block, the bottom end of the positioning block penetrates through the bottom of the positioning claw 4 and abuts against the opposite limiting hole grooves 7, the positioning block comprises a sliding block 10 slidably connected to the inner side wall of the sliding cavity 8, the bottom of the sliding block 10 is fixedly connected with a protruding block 11, and the bottom end of the protruding block 11 penetrates through the bottom of the positioning claw 4 and abuts against the opposite limiting hole grooves 7. The side wall of the positioning claw 4 is also provided with a lifting piece for controlling the positioning block to move up and down. The bump 11 is closely attached to the inner wall of the limiting hole groove 7, so that the relative stability between the positioning claw 4 and the base claw 3 is ensured. In addition, the cross sections of the sliding cavity 8 and the sliding block 10 are rectangular, and the sliding block 10 can slide up and down in the sliding cavity 8 without rotating, so that the sliding block 10 can stably move up and down.

Referring to fig. 5-6, the side wall of the positioning claw 4 is provided with a mounting groove 12, a lifting member is arranged on the opposite side wall of the mounting groove 12 and the sliding cavity 8 in a penetrating manner, one end of the lifting member is positioned in the sliding cavity 8, the other end of the lifting member is positioned outside the positioning claw 4, and a spring 16 is fixedly connected between one end of the lifting member positioned outside the positioning claw 4 and the opposite inner side wall of the mounting groove 12. The end of the plug 13 outside the positioning claw 4 is fixedly connected with a button cap 15, and a spring 16 is fixedly connected on the opposite side walls of the button cap 15 and the mounting groove 12. The button cap 15 is provided to facilitate pressing of the plug 13. The spring 16 is provided to automatically reset the button cap 15 and the plug 13.

The lifting piece comprises a plug 13 which penetrates through opposite side walls of the mounting groove 12 and the sliding cavity 8, one end of the plug 13 is located in the sliding cavity 8, the other end of the plug 13 is located outside the positioning claw 4, one end of the plug 13 located outside the positioning claw 4 is connected with opposite inner side walls of the mounting groove 12 through a spring 16, a chute 9 is formed in one end of the plug 13 located inside the sliding cavity 8, a sliding rod 14 is fixedly connected to the top end of the sliding rod 10, the sliding rod 14 is located inside the chute 9, and the sliding rod 14 is in sliding connection with the inner side walls of the chute 9. As shown in fig. 5 and 6, the slide bar 14 is composed of a vertical rod connected to the slide block 10 and a cross rod connected to the top of the vertical rod, the cross rod is located in the chute 9, and when the plug 13 is pushed into the slide cavity 8, the bottom wall of the chute 9 can force the cross rod to move upwards, so that the slide block 10 is driven to move upwards synchronously by the vertical rod. Otherwise, when the plug 13 moves out of the sliding cavity 8, the top wall of the chute 9 can force the cross rod to move downwards, and then the vertical rod drives the sliding block 10 to move downwards synchronously, so that the positioning block can be controlled to move upwards and downwards.

The working principle of the adjustable positioning device is as follows: the base jaw 3 in the jaw structure is used as a bearing part of the positioning jaw 4, the workpiece is not clamped, and the positioning jaw 4 is used for clamping the workpiece. When the position of the positioning pawl 4 needs to be adjusted in a large span, both sides of the positioning pawl 4 can be pinched and the button caps 15 on the side walls of the positioning pawl 4 can be pressed. The button cap 15 is pressed into the mounting groove 12, synchronously pushes the plug 13 to move into the sliding cavity 8, and the chute 9 on the plug 13 can squeeze and lift the bottom of the sliding rod 14, so that the sliding rod 14 can be lifted upwards, and the whole positioning block is driven to move upwards. The protruding block 11 at the bottom of the sliding block 10 moves out of the limiting hole groove 7 opposite to the upper surface of the base claw 3, so that the locking between the base claw 3 and the positioning claw 4 is canceled, at the moment, the positioning claw 4 can slide on the base claw 3 while pinching the positioning claw 4, the relative positions of the base claw 3 and the positioning claw 4 can be quickly adjusted, and the positioning claw 4 can be quickly adjusted to a proper position required by clamping parts. Then, the button cap 15 is loosened, under the action of the elastic force of the spring 16, the button cap 15 can be forced to spring outwards, the button cap 15 synchronously drives the plug 13 to reset, the chute 9 on the plug 13 can press the slide bar 14 to move downwards, the whole positioning block can move downwards synchronously, the lug 11 in the positioning block is propped into the limiting hole groove 7 opposite to the upper surface of the base jaw 3, and the base jaw 3 and the positioning jaw 4 can be locked again. After the same adjustment is carried out on the positioning claws 4 on each base claw 3, the positions of the grooves 2 are finely adjusted through the stress application rods, so that the positioning claws 4 are driven to rapidly and stably clamp the workpiece.

It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an adjustable positioner, includes chuck body (1), sets up a plurality of slot (2) on chuck body (1) and a plurality of jack catch structures of sliding connection on a plurality of slot (2) inside wall respectively, a serial communication port, jack catch structure includes base claw (3) of sliding connection on slot (2) inside wall, the top sliding connection of base claw (3) has locating claw (4), the opposite face of base claw (3) and locating claw (4) is connected through limit structure, a plurality of spacing hole grooves (7) have been seted up to the upper surface of base claw (3), sliding connection has the locating piece on the inside wall of sliding connection in a plurality of slot (2) in the inside of locating claw (4), the bottom of locating piece runs through the bottom of locating claw (4) and supports into in relative spacing hole groove (7), still be provided with the hoisting member that is used for controlling the locating piece reciprocates on the lateral wall of locating claw (4).

2. The adjustable positioning device according to claim 1, wherein the limiting structure comprises a limiting chute (5) formed in the upper surface of the base claw (3), a limiting slide bar (6) is fixedly connected to the lower surface of the positioning claw (4), the limiting slide bar (6) is embedded into the limiting chute (5), and the limiting slide bar (6) is slidably connected with the inner side wall of the limiting chute (5).

3. An adjustable positioning device according to claim 1, characterized in that the positioning block comprises a sliding block (10) which is slidably connected to the inner side wall of the sliding cavity (8), a protruding block (11) is fixedly connected to the bottom of the sliding block (10), and the bottom end of the protruding block (11) penetrates through the bottom of the positioning claw (4) and abuts against the opposite limiting hole groove (7).

4. An adjustable positioning device according to claim 3, characterized in that the side wall of the positioning claw (4) is provided with a mounting groove (12), the lifting member is arranged on the opposite side wall of the mounting groove (12) and the sliding cavity (8) in a penetrating manner, one end of the lifting member is positioned in the sliding cavity (8), the other end of the lifting member is positioned outside the positioning claw (4), and a spring (16) is fixedly connected between one end of the lifting member positioned outside the positioning claw (4) and the opposite inner side wall of the mounting groove (12).

5. The adjustable positioning device according to claim 4, wherein the lifting member comprises a plug (13) penetrating through opposite side walls of the mounting groove (12) and the sliding cavity (8), one end of the plug (13) is located in the sliding cavity (8), the other end of the plug (13) is located outside the positioning claw (4), one end of the plug (13) located outside the positioning claw (4) is connected with opposite inner side walls of the mounting groove (12) through a spring (16), a chute (9) is formed in one end of the plug (13) located inside the sliding cavity (8), a slide bar (14) is fixedly connected to the top end of the slide block (10), the slide bar (14) is located inside the chute (9), and the slide bar (14) is in sliding connection with the inner side walls of the chute (9).

6. An adjustable positioning device according to claim 5, wherein a button cap (15) is fixedly connected to one end of the plug (13) located outside the positioning claw (4), and the spring (16) is fixedly connected to opposite side walls of the button cap (15) and the mounting groove (12).