CN109986099B

CN109986099B - Steering positioning chuck

Info

Publication number: CN109986099B
Application number: CN201711478255.9A
Authority: CN
Inventors: 邓立伟
Original assignee: Chongqing Fenglin Intelligent Machinery Equipment Manufacturing Co ltd
Current assignee: Chongqing Fenglin Intelligent Machinery Equipment Manufacturing Co ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2020-09-08
Anticipated expiration: 2037-12-29
Also published as: CN109986099A

Abstract

The invention provides a steering positioning chuck, which comprises a chuck body and a plurality of clamping jaws arranged on the chuck body along the circumferential direction, wherein the clamping jaws can slide on the chuck body along the vertical direction; the method is characterized in that: the positioning device also comprises a moving block and a positioning block which are oppositely arranged; one of the clamping jaws is a movable clamping jaw, and the clamping jaw arranged on the chuck body opposite to the movable clamping jaw is a fixed clamping jaw; the movable clamping jaw and the fixed clamping jaw are respectively provided with a through hole arranged along the vertical direction; the top of the moving block can be slidably inserted into the through hole of the moving claw, and the bottom of the moving block extends downwards to form a free end; the positioning block can rotate in the through hole around the axis; the bottom of the positioning block is inserted into the through hole of the fixed jaw, and the bottom of the positioning block extends upwards to form a free end; the locating block is rotatable about an axis within the through bore. The steering positioning chuck provided by the invention is convenient for adjusting the machining angle of a workpiece, so that the production error is reduced, and the working efficiency is improved.

Description

Steering positioning chuck

Technical Field

The invention relates to the field of clamps, in particular to a steering positioning chuck.

Background

Chucks which are mostly adopted in the existing mechanical processing are three-jaw chucks and four-jaw chucks; after the chuck clamps the workpiece, the machining angle of the workpiece cannot be adjusted. Therefore, in the processing technique of the pipe joint tee joint and similar products, when one end of the tee joint is processed, a workpiece needs to be taken off from a machine tool and clamped on the machine tool again to process the other end. The problems in the prior art are that the machining angle of a workpiece cannot be adjusted, when the workpiece needs to be machined by a plurality of surfaces, the production error is large due to repeated clamping, and the production efficiency is low.

Disclosure of Invention

Aiming at the defects in the prior art, the steering positioning chuck provided by the invention is convenient for adjusting the machining angle of a workpiece, so that the production error is reduced, and the working efficiency is improved.

The invention provides a steering positioning chuck, which comprises a chuck body and a plurality of clamping jaws arranged on the chuck body along the circumferential direction, wherein the clamping jaws can slide on the chuck body along the vertical direction; the method is characterized in that: the positioning device also comprises a moving block and a positioning block which are oppositely arranged; one of the clamping jaws is a movable clamping jaw, and the clamping jaw arranged on the chuck body opposite to the movable clamping jaw is a fixed clamping jaw; the movable clamping jaw and the fixed clamping jaw are respectively provided with a through hole arranged along the vertical direction; the top of the moving block can be slidably inserted into the through hole of the moving claw, and the bottom of the moving block extends downwards to form a free end; the positioning block can rotate in the through hole around the axis; the bottom of the positioning block is inserted into the through hole of the fixed jaw, and the bottom of the positioning block extends upwards to form a free end; the locating block is rotatable about an axis within the through bore.

Optionally, the bottom of the movable clamping jaw is provided with a plurality of positioning holes; the positioning holes are circumferentially distributed on the periphery of the through hole; the positioning block is provided with a positioning pin; the positioning pin can be inserted into the positioning hole to lock the moving block.

Optionally, the movable clamping jaw is detachably connected with the chuck body.

Optionally, the positioning block can slide on the fixed jaw along the vertical direction.

Optionally, a dust cover for sealing the through hole is further included.

Optionally, the clamping jaw, the moving block and one end of the positioning block close to the center of the chuck body are provided with anti-slip teeth.

Optionally, the device further comprises a connecting rod and a return spring; one end of the connecting rod penetrates through the through hole to be connected with the moving block, and the other end of the connecting rod forms a power connecting end; the connecting rod can slide in the through hole along the vertical direction and can rotate in the through hole around the axis; the inner wall of the through hole is provided with a boss, and two ends of the reset spring are respectively connected with the moving block and the boss.

According to the technical scheme, the invention has the beneficial effects that: the invention provides a steering positioning chuck, which comprises a chuck body and a plurality of clamping jaws arranged on the chuck body along the circumferential direction, wherein the clamping jaws can slide on the chuck body along the vertical direction; the method is characterized in that: the positioning device also comprises a moving block and a positioning block which are oppositely arranged; one of the clamping jaws is a movable clamping jaw, and the clamping jaw arranged on the chuck body opposite to the movable clamping jaw is a fixed clamping jaw; the movable clamping jaw and the fixed clamping jaw are respectively provided with a through hole arranged along the vertical direction; the top of the moving block can be slidably inserted into the through hole of the moving claw, and the bottom of the moving block extends downwards to form a free end; the positioning block can rotate in the through hole around the axis; the bottom of the positioning block is inserted into the through hole of the fixed jaw, and the bottom of the positioning block extends upwards to form a free end; the locating block is rotatable about an axis within the through bore. The steering positioning chuck provided by the invention is convenient for adjusting the machining angle of a workpiece, so that the production error is reduced, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a structural schematic diagram of the movable jaw.

Reference numerals:

1-chuck body, 2-moving block, 3-positioning block, 4-moving claw, 5-fixed claw, 6-dust cap, 7-connecting rod, 8-reset spring, 21-positioning pin, 41-through hole, 42-positioning hole and 411-boss.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-3, the steering positioning chuck provided in this embodiment includes a chuck body 1 and a plurality of jaws circumferentially disposed on the chuck body, where the jaws can slide on the chuck body along a vertical direction; the method is characterized in that: the device also comprises a moving block 2 and a positioning block 3 which are oppositely arranged; one of the jaws is a movable jaw 4, and the jaw arranged on the chuck body opposite to the movable jaw 4 is a fixed jaw 5; the movable clamping jaw 4 and the fixed clamping jaw 5 are both provided with through holes 41 arranged along the vertical direction; the top of the moving block 2 can be slidably inserted into the through hole 41 of the moving claw 4, and the bottom extends downwards to form a free end; the positioning block 2 can rotate around the axis in the through hole 41; the bottom of the positioning block 3 is inserted into the through hole 41 of the fixed jaw 5, and the bottom extends upwards to form a free end; the positioning block 3 is rotatable about an axis within the through hole 41.

When the tee joint needs to be processed, a workpiece needing to be processed is placed between the movable clamping jaw 4 and the fixed clamping jaw 5, the movable clamping jaw 4 and the fixed clamping jaw 5 slide to one side close to the workpiece and are abutted to the surface of the workpiece, the workpiece is clamped and fixed, the movable positioning block 2 and the positioning block 3 slide along with the sliding of the movable clamping jaw 4 and the fixed clamping jaw 5 respectively at the moment and are abutted to the surface of the workpiece, and the workpiece is clamped and fixed. Processing a first connector of the tee joint, and after the processing is finished, sliding the movable clamping jaw 4 and the fixed clamping jaw 5 to one side far away from the workpiece to loosen the workpiece; meanwhile, the positioning block 2 slides downwards along with the positioning block 3 along the vertical direction, so that the positioning block 2 and the positioning block 3 are always abutted against the surface of a workpiece to clamp and fix the workpiece. Rotating the positioning block 2, wherein the rotating angle of the positioning block 2 is equal to the included angle between the first connector and the second connector of the tee joint; under the drive of the moving block 2, the workpiece and the positioning block 3 rotate, and the rotating angle is equal to the included angle between the first connector and the second connector of the tee joint. The movable clamping jaw 4 and the fixed clamping jaw 5 slide towards one side close to the workpiece again and are abutted against the surface of the workpiece to clamp and fix the workpiece. And processing a second connector of the tee joint. Repeating the above actions, making the angle of the rotation of the positioning block 2 equal to the included angle between the second connector and the third connector of the tee joint, and processing the third connector of the tee joint. The steering positioning chuck provided by the invention is convenient for adjusting the machining angle of a workpiece, so that the production error is reduced, and the working efficiency is improved.

As a further improvement to the above technical solution, the bottom of the movable jaw 4 is provided with a plurality of positioning holes 42; the positioning holes 42 are circumferentially distributed around the through hole 41; the positioning block 2 is provided with a positioning pin 21; the positioning pin 21 can be inserted into the positioning hole 42 to lock the moving block 2. The included angle between the positioning holes 42 is equal to the included angle between the connectors of the tee joint to be processed. The positioning block 2 is provided with a pin hole, the positioning pin 21 is inserted into the pin hole and is connected with the positioning block 2 in a sliding manner, and a force application spring is arranged in the pin hole; two ends of the force application spring are respectively connected with the moving block 2 and the positioning pin 21.

In an initial state, the positioning pin 21 is inserted into one of the positioning holes 42, the moving block 2 is locked, the first connector of the tee joint is machined, and after machining is finished, the moving clamping jaw 4 slides to one side far away from the workpiece, so that the workpiece is loosened. At this time, the positioning pin 21 exits the positioning hole 42, and the positioning block 2 is rotated by a working angle, which is smaller than the angle between the connectors on the tee joint. And then the movable clamping jaw 4 slides to one side close to the workpiece, at the moment, the positioning pin 21 slides downwards to be accommodated in the pin hole, the positioning pin 21 extends out of the pin hole to abut against the surface of the movable clamping jaw 4, and the force application spring is in a compressed state. The rotation of the positioning block 2 is continued while the positioning pin 21 slides along the surface of the movable jaw 4 to another positioning hole 42. The positioning pin 21 slides upwards under the action of the force application spring, and is inserted into the positioning hole 42 to lock the positioning block 2. The movable clamping jaw 4 continuously slides to one side close to the workpiece to clamp the workpiece. The angle of the rotary positioning block 2 can be accurately rotated, and the production and the processing are convenient.

As a further improvement to the technical scheme, the movable clamping jaw 4 is detachably connected with the chuck body 1. The movable clamping jaw 4 can be replaced conveniently according to actual processing requirements, so that the movable positioning block 2 can be rotated according to actual requirements.

As a further improvement to the above technical solution, the positioning block 3 can slide on the fixed jaw 5 along the vertical direction. After a connector of the tee joint is machined, the movable clamping jaw 4 and the fixed clamping jaw 5 slide towards one side far away from a workpiece, the workpiece is loosened, and at the moment, the positioning block 3 and the movable block 2 are kept in a static state. When the movable clamping jaw 4 and the fixed clamping jaw 5 are loosened, the positioning block 3 is rotated, and the movable clamping jaw 4 and the fixed clamping jaw 5 slide to one side close to the workpiece to clamp the workpiece. And processing the other connector of the tee joint. In the process, the positioning block 3 and the positioning block 2 only rotate around the axis of the through hole 41, and do not move in the vertical direction, namely, the workpiece is always located on the same axis. The processing precision is convenient to improve.

As a further improvement to the above technical solution, a dust cap 6 for sealing the through hole 41 is further included. Dust is prevented from entering the through-hole 41.

As a further improvement to the technical scheme, the clamping jaws, the movable positioning blocks 2 and the positioning blocks 3 are provided with anti-skid teeth at one ends close to the center of the chuck body 1. The workpiece is convenient to clamp.

As a further improvement to the above technical solution, the device further comprises a connecting rod 7 and a return spring 8; one end of the connecting rod 7 penetrates through the through hole 41 to be connected with the moving block 2, and the other end of the connecting rod forms a power connecting end; the connecting rod 7 can slide in the through hole 41 along the vertical direction and can rotate in the through hole 41 around the axis; the inner wall of the through hole 41 is provided with a boss 411, and two ends of the return spring 8 are respectively connected with the moving block 2 and the boss 411. During production, the power connecting end of the connecting rod 7 is abutted against the push rod of the air cylinder; when a workpiece needs to be rotated, the cylinder pushes the moving block 2 to clamp the workpiece, the moving claw 4 slides upwards to loosen the workpiece, and the moving claw 4 and the moving block 2 slide relatively to separate the moving block 2 from the moving claw 4. The rotating connecting rod 7 enables the position block 2 to drive the workpiece to rotate to the next surface to be machined. The movable clamping jaw 4 slides upwards to clamp a workpiece. The cylinder upwards stimulates the push rod of cylinder, the push rod and the connecting rod 7 separation of cylinder, connecting rod 7 upwards slides under reset spring 8's effect, move position piece 2 upwards slides and move 4 joints of gripper. Is convenient to be connected with the cylinder and drives the moving block 2 to rotate.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A steering positioning chuck comprises a chuck body (1) and a plurality of clamping jaws arranged on the chuck body along the circumferential direction, wherein the clamping jaws can slide on the chuck body along the vertical direction; the method is characterized in that: the device also comprises a moving block (2) and a positioning block (3) which are oppositely arranged; one of the jaws is a movable jaw (4), and the jaw arranged on the chuck body opposite to the movable jaw (4) is a fixed jaw (5); through holes (41) arranged along the vertical direction are formed in the movable clamping jaw (4) and the fixed clamping jaw (5); the top of the moving block (2) can be slidably inserted into a through hole (41) of the moving claw (4), and the bottom of the moving block extends downwards to form a free end; the positioning block (2) can rotate around the axis in the through hole (41); the bottom of the positioning block (3) is inserted into the through hole (41) of the fixed jaw (5), and the bottom extends upwards to form a free end; the positioning block (3) can rotate around the axis in the through hole (41);

the bottom of the movable clamping jaw (4) is provided with a plurality of positioning holes (42); the positioning holes (42) are distributed around the through hole (41) along the circumferential direction; the positioning block (2) is provided with a positioning pin (21); the positioning pin (21) can be inserted into the positioning hole (42) to lock the moving block (2);

the positioning block (3) can slide on the fixed clamping claw (5) along the vertical direction.

2. The steering positioning chuck according to claim 1, wherein: the movable clamping jaw (4) is detachably connected with the clamping chuck body (1).

3. The steering positioning chuck according to claim 1, wherein: and a dust cover (6) for sealing the through hole (41).

4. The steering positioning chuck according to claim 1, wherein: the clamping jaw, the moving block (2) and the positioning block (3) are provided with anti-skidding teeth at one ends close to the center of the chuck body (1).

5. The steering positioning chuck according to claim 1, wherein: the device also comprises a connecting rod (7) and a return spring (8); one end of the connecting rod (7) penetrates through the through hole (41) to be connected with the moving block (2), and the other end of the connecting rod forms a power connecting end; the connecting rod (7) can slide in the through hole (41) along the vertical direction and can rotate in the through hole (41) around an axis; be provided with boss (411) on the inner wall of through-hole (41), the both ends of reset spring (8) are connected with action block (2) and boss (411) respectively.