CN223776043U

CN223776043U - Easy-to-adjust three-jaw chuck

Info

Publication number: CN223776043U
Application number: CN202422910462.9U
Authority: CN
Inventors: 唐勇
Original assignee: Junheng Technology Shenzhen Co ltd
Current assignee: Junheng Technology Shenzhen Co ltd
Priority date: 2024-11-27
Filing date: 2024-11-27
Publication date: 2026-01-09
Anticipated expiration: 2034-11-27

Abstract

This application relates to the field of clamping tool technology, and in particular to an easily adjustable three-jaw chuck. The easily adjustable three-jaw chuck includes an adjusting ring, a jaw mounting plate, and jaws. The jaw mounting plate has a first groove, a second groove, and a third groove. The jaws include a first jaw, a second jaw, and a third jaw, which are respectively installed in the first groove, the second groove, and the third groove. The adjusting ring has a planar thread, and each of the first, second, and third jaws has a toothed groove on the side near the adjusting ring. The toothed groove engages with the planar thread. When the adjusting ring is rotated, the planar thread rotates, causing the first, second, and third jaws to open or close together. This solves the problem of the complex structure and time-consuming and laborious adjustment of traditional three-jaw chucks.

Description

Three-jaw chuck convenient to adjust

Technical Field

The application relates to the technical field of clamping tools, in particular to a three-jaw chuck convenient to adjust.

Background

The laser carving and cutting machine focuses the laser emitted from the laser into laser beam via the light path system, the laser beam irradiates the surface of the workpiece to make the workpiece reach the smelting point or boiling point, and the high pressure gas coaxial with the laser beam blows away the melted or gasified matter to form grain or kerf along with the movement of the relative position of the laser beam and the workpiece, so as to reach the aim of carving or cutting.

Laser engraving cutting machines typically require a cylindrical workpiece to be fixed and rotated for engraving when the cylindrical workpiece is being processed. Three-jaw chucks are generally used for fixing cylindrical workpieces in the market, but the traditional three-jaw chucks are time-consuming and labor-consuming in complex adjustment.

Disclosure of utility model

The application provides a three-jaw chuck convenient to adjust, and aims to solve the problem that the traditional three-jaw chuck is time-consuming and labor-consuming when in complex adjustment.

In order to solve the technical problems, the application provides a three-jaw chuck convenient to adjust, which comprises an adjusting ring, a clamping jaw mounting plate and clamping jaws;

The clamping jaw mounting plate is provided with a first groove body, a second groove body and a third groove body, the clamping jaws comprise a first clamping jaw, a second clamping jaw and a third clamping jaw, the first clamping jaw, the second clamping jaw and the third clamping jaw are respectively correspondingly installed in the first groove body, the second groove body and the third groove body, the adjusting ring is provided with plane threads, tooth grooves are formed in one side, close to the adjusting ring, of the first clamping jaw, the second clamping jaw and the third clamping jaw, tooth grooves are meshed with the plane threads, and when the adjusting ring is rotated, the plane threads rotate, so that the first clamping jaw, the second clamping jaw and the third clamping jaw are mutually opened or clamped.

Further, guide grooves are formed in the first groove body, the second groove body and the third groove body, guide strips are arranged on the first clamping jaw, the second clamping jaw and the third clamping jaw, and the guide strips are assembled with the guide grooves in a sliding mode.

Further, the first clamping jaw, the second clamping jaw and the third clamping jaw all comprise arc-shaped blocks, and the arc-shaped blocks are arc-shaped, so that the inner wall of the cylinder is clamped after the three clamping jaws are opened.

Further, the three-jaw chuck convenient to adjust further comprises a clamping jaw sleeve, the clamping jaw sleeve is fixedly assembled on the arc-shaped block, and the clamping jaw sleeve is made of flexible materials.

Further, the surface of the clamping jaw sleeve is provided with anti-slip stripes.

Further, the three-jaw chuck convenient to adjust still includes the clamping ring, the clamping ring is equipped with the adjusting ring is kept away from one side of clamping jaw mounting disc, the clamping ring with the adjusting ring laminating mutually, the clamping ring is used for fixing the position of adjusting ring.

Further, the three-jaw chuck convenient to adjust further comprises a fixed shaft, and the clamping jaw mounting disc is sleeved on the fixed shaft, so that the fixed shaft can drive the clamping jaw mounting disc to rotate.

Further, the adjusting ring is also provided with a plurality of adjusting holes, and the adjusting holes are uniformly distributed on one circle of the adjusting ring.

Further, the first groove body, the second groove body and the third groove body are arranged in a three-equal-angle mode on a plane.

The three-jaw chuck convenient to adjust has the beneficial effects that in the three-jaw chuck convenient to adjust, the clamping jaw mounting plate is provided with the first groove body, the second groove body and the third groove body, the clamping jaw comprises the first clamping jaw, the second clamping jaw and the third clamping jaw, the first clamping jaw, the second clamping jaw and the third clamping jaw are respectively correspondingly arranged in the first groove body, the second groove body and the third groove body, the adjusting ring is provided with the plane threads, tooth grooves are formed in one sides of the first clamping jaw, the second clamping jaw and the third clamping jaw, which are close to the adjusting ring, and are meshed with the plane threads, and when the adjusting ring is rotated, the plane threads rotate to enable the first clamping jaw, the second clamping jaw and the third clamping jaw to be mutually opened or clamped. In conclusion, the three-jaw chuck convenient to adjust can directly control the opening or clamping of the clamping jaw by manually rotating the adjusting ring, and is convenient to operate, time-saving and labor-saving.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic perspective view of a three-jaw chuck for easy adjustment according to one embodiment of the present utility model;

FIG. 2 is an exploded view of a three jaw chuck for easy adjustment in accordance with one embodiment of the present utility model;

FIG. 3 is a schematic perspective view of an adjusting ring and jaw mounting plate in a three-jaw chuck for ease of adjustment in accordance with one embodiment of the present utility model;

Fig. 4 is a schematic perspective view of a jaw portion of a three-jaw chuck for easy adjustment according to an embodiment of the present utility model.

The reference numerals are 100, an adjusting ring, 110, a plane thread, 111, a tooth socket, 120, a second through groove, 130, an assembling groove, 140, an adjusting hole, 200, a clamping jaw mounting disc, 210, a first groove body, 211, a first clamping jaw, 220, a second groove body, 221, a second clamping jaw, 230, a third groove body, 231, a third clamping jaw, 240, a first cylindrical part, 241, a first through hole, 250, a second cylindrical part, 260, a fixing block, 270, a guiding groove, 271, a guiding strip, 280, an arc-shaped block, 281, a clamping jaw sleeve, 282, an anti-skid stripe, 290, an assembling block, 300, a compression ring, 310, a third through groove, 320, a second through hole, 400 and a fixing shaft.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any module and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As shown in fig. 1 to 4, the three-jaw chuck for easy adjustment includes an adjusting ring 100, a jaw mounting plate 200 and jaws, wherein the jaw mounting plate 200 is provided with a first slot 210, a second slot 220 and a third slot 230, the jaws include a first jaw 211, a second jaw 221 and a third jaw 231, the first jaw 211, the second jaw 221 and the third jaw 231 are respectively correspondingly installed in the first slot 210, the second slot 220 and the third slot 230, the adjusting ring 100 is provided with a planar thread 110, one side of the first jaw 211, the second jaw 221 and the third jaw 231, which is close to the adjusting ring 100, is provided with tooth grooves 111, the tooth grooves 111 are meshed with the planar thread 110, and when the adjusting ring 100 is rotated, the planar thread 110 rotates, so that the first jaw 211, the second jaw 221 and the third jaw 231 are mutually opened or clamped.

In one embodiment, the jaw mounting plate 200 is primarily used to mount the jaws, providing a stable mounting location for the jaws. The clamping jaw mounting plate 200 comprises a first cylindrical portion 240, a second cylindrical portion 250 and a fixing block 260, wherein the first cylindrical portion 240 and the second cylindrical portion 250 are cylindrical, the second cylindrical portion 250 is fixedly connected with one end of the first cylindrical portion 240, the first cylindrical portion 240 and the second cylindrical portion 250 are concentrically arranged, the diameter of the second cylindrical portion 250 is larger than that of the first cylindrical portion 240, a first through groove is formed in the central position of the first cylindrical portion 240 and the central position of the second cylindrical portion 250, the first through groove penetrates through the first cylindrical portion 240 and the second cylindrical portion 250, a plurality of first through holes 241 are formed in the surface of the first cylindrical portion 240, the plurality of first through holes 241 are equidistantly arranged around one circle of the first cylindrical portion 240, and the first through holes 241 are communicated with the first through grooves. Three fixed blocks 260 with the same shape and structure are arranged on one side of the second cylindrical part 250 far away from the first cylindrical part 240, the fixed blocks 260 and the second cylindrical part 250 are integrally formed, the three fixed blocks 260 are uniformly distributed at equal intervals, and three groove bodies, namely a first groove body 210, a second groove body 220 and a third groove body 230, are formed among the three fixed blocks 260.

The clamping jaw is composed of a first clamping jaw 211, a second clamping jaw 221 and a third clamping jaw 231, the first clamping jaw 211, the second clamping jaw 221 and the third clamping jaw 231 have the same shape and structure, and the first clamping jaw 211, the second clamping jaw 221 and the third clamping jaw 231 are respectively assembled in the first groove body 210, the second groove body 220 and the third groove body 230 in a sliding mode so as to ensure that the three clamping jaws can be accurately installed and have relatively fixed tracks in the moving process.

The adjusting ring 100 is circular, the center position of the adjusting ring 100 is provided with a second through groove 120, the second through groove 120 is circular, the diameter of the second through groove 120 is matched with the diameter of the second cylindrical part 250, the adjusting ring 100 is sleeved on the second cylindrical part 250 through the second through groove 120, one side of the adjusting ring 100, which is close to the fixed block 260, is provided with a plane thread 110, the plane thread 110 is in a special thread form, the plane thread is unfolded in a plane shape, one side of the clamping jaw, which is close to the adjusting ring 100, is provided with a tooth slot 111, the shape of the tooth slot 111 is matched with the shape of the plane thread 110, the tooth slot 111 is meshed with the plane thread 110, the adjusting ring 100 is manually rotated, and under the limit of the first groove body 210, the second groove body 220 and the third groove body 230, the rotation of the adjusting ring 100 can be converted into the linear motion of the clamping jaw, so that the clamping jaw can be opened or clamped according to the rotation of the adjusting ring 100.

In summary, the adjusting ring 100 is rotated to open and clamp the clamping jaw, so that the operation is simple and visual. Compared with the traditional three-jaw chuck which needs complicated link mechanism adjustment or the cooperative operation of a plurality of parts to change the position of the clamping jaw, the three-jaw chuck only needs to rotate one adjusting ring 100, thereby greatly reducing the operation difficulty, improving the adjusting efficiency and enabling an operator who is not familiar with equipment to quickly carry out the clamping adjustment of the workpiece.

As shown in fig. 3 and 4, the first, second and third grooves 210, 220, 230 are each provided with a guide groove 270, and the first, second and third clamping jaws 211, 221, 231 are each provided with a guide bar 271, and the guide bars 271 are slidably assembled with the guide grooves 270.

In a specific embodiment, the guide groove 270 is a strip groove structure, and a plurality of symmetrical guide grooves 270 are respectively disposed in the first groove 210, the second groove 220 and the third groove 230, the guide grooves 270 are perpendicular to the central axis of the second cylindrical portion 250, and the main function of the guide groove 270 is to provide a sliding track on the clamping jaw, define a moving path of the clamping jaw in a specific direction, and ensure that the clamping jaw can only perform linear motion along the direction specified by the guide groove 270 when the clamping jaw performs an opening or clamping action along with the rotation of the adjusting ring 100, so as to avoid the situation that the clamping jaw deviates from a predetermined track.

The guide bar 271 is an elongated raised structure on the first jaw 211, the second jaw 221, and the third jaw 231 that is shaped and sized to mate with the guide slot 270. When the clamping jaw moves, the guide bar 271 is embedded into the guide groove 270 and slides along the guide groove 270 to play a role in guiding the clamping jaw to move accurately, so as to ensure the directionality and stability of the clamping jaw in the moving process and ensure that the threaded engagement transmission between the clamping jaw and the adjusting ring 100 can be performed more smoothly.

In summary, the cooperation of the guide groove 270 and the guide bar 271 makes the clamping jaw move strictly in a predetermined linear direction when opening and clamping, which avoids the possible deviation or shaking of the clamping jaw during the movement process, ensures that the clamping jaw can accurately reach the required position, and improves the accuracy of workpiece clamping.

As shown in fig. 4, the first clamping jaw 211, the second clamping jaw 221 and the third clamping jaw 231 all comprise arc-shaped blocks 280, and the arc-shaped blocks 280 are arc-shaped, so that the inner wall of the cylinder is clamped after the three clamping jaws are opened.

In a specific embodiment, the first clamping jaw 211, the second clamping jaw 221 and the third clamping jaw 231 all comprise an arc-shaped block 280 and an assembling block 290, the arc-shaped block 280 is in an arc shape, the assembling block 290 is fixedly assembled with the concave side of the arc-shaped block 280, and the guide bar 271 and the tooth slot 111 are arranged on the assembling block 290. The arc-shaped block 280 is designed to be in an arc shape so as to better adapt to the shape of the inner wall of the cylindrical workpiece, and after the three clamping jaws are opened, the arc surface of the arc-shaped block 280 can be tightly attached to the inner wall of the cylindrical workpiece, so that the cylindrical workpiece can be effectively clamped.

In summary, the arc-shaped block 280 can uniformly distribute the clamping jaws on the circumference of the cylinder when clamping the cylindrical workpiece, so as to provide a uniform clamping force, and avoid workpiece deformation or machining errors caused by uneven clamping force.

As shown in fig. 2, the three-jaw chuck for easy adjustment further includes a jaw case 281, the jaw case 281 is fixedly mounted on the arc-shaped block 280, and the jaw case 281 is made of a flexible material.

In a specific embodiment, the shape of the clamping jaw sleeve 281 is matched with the shape of the arc-shaped block 280, the clamping jaw sleeve 281 is a layer of additional component installed on the arc-shaped block 280, the clamping jaw sleeve 281 is made of flexible materials, the main purpose of the clamping jaw sleeve is to buffer and protect the clamping jaw and a workpiece, when the clamping jaw clamps the workpiece, the clamping jaw sleeve 281 is firstly contacted with the workpiece, and due to the characteristics of the flexible materials, the impact force applied to the workpiece by the clamping jaw can be absorbed to a certain extent, and damage to the surface of the workpiece is reduced.

In summary, the clamping jaw sleeve 281 is made of flexible material, and can play a role in buffering when the clamping jaw contacts with a workpiece, which is particularly important for some workpieces with higher surface precision requirements or brittle materials, and can effectively prevent the surface of the workpiece from being scratched or damaged, thereby protecting the integrity of the workpiece.

As shown in fig. 2, the surface of the jaw case 281 is provided with anti-slip stripes 282.

In one embodiment, the anti-slip stripes 282 are raised or recessed stripes disposed on the surface of the jaw case 281, which primarily serve the purpose of increasing friction between the jaw case 281 and the workpiece. When the clamping jaw clamps a workpiece, the anti-slip stripes 282 can increase the friction force between the clamping jaw and the surface of the workpiece, so that the workpiece is prevented from sliding due to the influence of external force in the machining process, and the stability of the workpiece in the machining process is ensured.

As shown in fig. 2, the three-jaw chuck convenient to adjust further includes a pressing ring 300, wherein the pressing ring 300 is provided with a side of the adjusting ring 100 away from the jaw mounting plate 200, the pressing ring 300 is attached to the adjusting ring 100, and the pressing ring 300 is used for fixing the position of the adjusting ring 100.

In a specific embodiment, the pressing ring 300 is annular, a third through-hole 310 is arranged at the center of the pressing ring 300, the diameter of the third through-hole 310 is matched with the diameter of the first cylindrical part 240, the pressing ring 300 is sleeved on the first cylindrical part 240 through the third through-hole 310, a plurality of second through holes 320 are formed in the outer peripheral surface of the pressing ring 300, the second through holes 320 are communicated with the third through-hole 310, screws fixedly connect the pressing ring 300 and the first cylindrical part 240 through the first through holes 241 and the second through holes 320, the pressing ring 300 can synchronously rotate with the clamping jaw mounting plate 200, an assembly groove 130 is further formed in one side, close to the pressing ring 300, of the adjusting ring 100, the diameter of the assembly groove 130 is matched with the diameter of the pressing ring 300, the pressing ring 300 is embedded in the assembly groove 130, and the pressing ring 300 is attached to the adjusting ring 100, so that the adjusting ring 100 is fixed in the axial position.

In summary, the positioning of the adjusting ring 100 is fixed by the arrangement of the pressing ring 300, so that the adjusting ring 100 is prevented from being unnecessarily biased due to the influence of external force, and the meshing effect of the clamping jaw and the adjusting ring 100 is ensured.

As shown in fig. 2, the three-jaw chuck convenient to adjust further includes a fixing shaft 400, and the jaw mounting plate 200 is sleeved on the fixing shaft 400, so that the fixing shaft 400 can drive the jaw mounting plate 200 to rotate.

In one embodiment, the fixing shaft 400 has a cylindrical shape, the fixing shaft 400 penetrates through the first through groove, and the first cylindrical portion 240 is fixedly connected with the fixing shaft 400, so that the jaw mounting plate 200 can rotate along with the fixing shaft 400 when the fixing shaft 400 rotates. The fixing shaft 400 provides a rotary supporting and power transmission way for the clamping jaw mounting plate 200, the clamping jaw mounting plate 200 is sleeved on the fixing shaft 400, and when the fixing shaft 400 receives external rotary power (such as power from a motor and other equipment), the clamping jaw mounting plate 200 can be driven to rotate around the fixing shaft 400, so that the clamping jaw is driven to rotate. When the workpiece is processed, the clamping state of the clamping jaw can be adjusted through the adjusting ring 100, and the clamping jaw can be driven to rotate through the fixing shaft 400, so that the workpiece can be processed at different angles.

As shown in fig. 3, the adjusting ring 100 is further provided with a plurality of adjusting holes 140, and the plurality of adjusting holes 140 are uniformly distributed around the adjusting ring 100.

In one embodiment, a circle of the adjusting holes 140 are provided at the outer circumferential surface of the adjusting ring 100 at equal intervals, and it is difficult to directly rotate the adjusting ring 100 by hand when the adjusting ring 100 is rotated to a certain extent, and an operator may insert a specific tool, such as a screwdriver, into the adjusting holes 140 and then rotate the adjusting ring 100 by rotating the tool, thereby rotating the adjusting ring 100 to a limit state.

In summary, the adjustment holes 140 may allow an operator to more conveniently perform a rotational operation on the adjustment ring 100.

As shown in fig. 2, the first, second and third grooves 210, 220, 230 are arranged in a trisection angle on a plane.

In a specific embodiment, a circumference angle (360 °) is divided into three equal parts, each of which is 120 °, and the first groove 210, the second groove 220, and the third groove 230 are respectively located on the equal division lines of the three 120 ° angles, so that the three clamping jaws can be uniformly distributed on the circumference when opening, so as to apply uniform clamping force to the workpiece, and particularly for circular or cylindrical workpieces, the uniformity and stability of clamping can be better ensured.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. The three-jaw chuck convenient to adjust is characterized by comprising an adjusting ring, a clamping jaw mounting plate and clamping jaws;

2. The three-jaw chuck convenient to adjust according to claim 1, wherein guide grooves are formed in the first groove body, the second groove body and the third groove body, guide strips are arranged on the first clamping jaw, the second clamping jaw and the third clamping jaw, and the guide strips are assembled with the guide grooves in a sliding mode.

3. The three jaw chuck of claim 1, wherein the first jaw, the second jaw, and the third jaw each comprise an arcuate block, the arcuate blocks being arcuate to facilitate gripping of the inner wall of the cylinder after the three jaws are opened.

4. The adjustable three jaw chuck of claim 3, further comprising a jaw sleeve fixedly mounted to the arcuate block, the jaw sleeve being formed of a flexible material.

5. The adjustable three jaw chuck of claim 4 wherein the jaw case surface is provided with slip strips.

6. The three-jaw chuck according to claim 1, further comprising a pressing ring provided with a side of the adjusting ring away from the jaw mounting plate, the pressing ring being attached to the adjusting ring, the pressing ring being for fixing a position of the adjusting ring.

7. The three jaw chuck of claim 1, further comprising a stationary shaft, wherein the jaw mounting plate is sleeved on the stationary shaft such that the stationary shaft can rotate the jaw mounting plate.

8. The three-jaw chuck convenient to adjust according to claim 1, wherein the adjusting ring is further provided with a plurality of adjusting holes, and the plurality of adjusting holes are uniformly distributed on a circumference of the adjusting ring.

9. The adjustable three jaw chuck of claim 1 wherein the first, second, and third slots are arranged in a trisection angle on a plane.