Telescopic positioning chuck jaw

Abstract

The utility model discloses a telescopic positioning chuck jaw, and relates to the technical field of positioning fixtures, in particular to a telescopic positioning chuck jaw used for clamping and positioning parts. The main body of the utility model is a claw body; the claw body is of a rectangular block structure, the rear end is machined into a mounting part used for being connected with machining equipment, and the front end is machined into a chuck end face. A positioning assembly is assembled on the end face of the chuck and used for clamping a part. According to the technical scheme, the problems that in the prior art, when a chuck clamps a workpiece, an existing clamping jaw cannot carry out zero-axial positioning on batches with the same reference; the batch production efficiency is low, the labor intensity is high, and time is wasted; and the operation is tedious.

Description

Technical Field

[0001] The utility model discloses a telescopic positioning chuck claw, which relates to the technical field of positioning fixtures, and in particular to a telescopic positioning chuck claw used for clamping and positioning parts. Background Art

[0002] At present, three-jaw chucks are usually used to clamp workpieces on lathes, but three-jaw chucks can only clamp the outer circle of the workpiece and have no axial positioning function. In particular, when batch parts are produced and processed using three-jaw chucks, because there is no axial positioning function, the length of the clamping jaws on each part during the installation process is different, and each part needs to determine the processing benchmark of the part separately, which makes batch production inefficient, labor-intensive, and very time-consuming.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of telescopic positioning chuck claw to solve the problem of rapid positioning during batch processing with the same reference, thereby overcoming the problems existing in the prior art. Summary of the invention

[0004] According to the above-mentioned prior art, the existing chucks cannot locate the batch zero axial direction with the same reference; the batch production efficiency is low, the labor intensity is high, and it is very time-consuming; the operation is cumbersome, and other technical problems are solved, and a telescopic positioning chuck jaw is provided. The utility model mainly uses a positioning column for axial positioning of parts to be arranged on the claw body to locate the parts axially, ensure that the axial reference of the parts is consistent, thereby improving production efficiency, reducing labor intensity, and saving time.

[0005] The technical means adopted by the utility model are as follows:

[0006] A telescopic positioning chuck claw has a main body as a claw body;

[0007] Further, the claw body is a rectangular block structure, the rear end is processed into a mounting portion for connecting to a processing device, and the front end is processed into a chuck end face;

[0008] Furthermore, a positioning assembly is mounted on the end surface of the chuck for clamping the parts.

[0009] Furthermore, the mounting portion is composed of an end face thread and a slot, and is assembled with processing equipment;

[0010] Further, an end face thread is machined on the rear end face of the claw body for engaging with a thread groove of a processing device;

[0011] Furthermore, the clamping grooves are arranged on both side end faces of the claw body located at one end of the end face thread, and are used to cooperate with the mounting clamping holes of the processing equipment;

[0012] Furthermore, the claw body is assembled in the mounting hole of the processing equipment through the card slot, the end face thread is meshed with the spiral groove of the processing equipment, and the cooperation between the spiral groove and the end face thread drives the claw body to reciprocate along the mounting hole.

[0013] Furthermore, the end surface of the chuck is a step-shaped structure, each step is processed with a countersunk hole parallel to the clamping groove, and each countersunk hole is equipped with a set of positioning components.

[0014] Further, the positioning assembly includes: a positioning column, a spring and a screw;

[0015] Furthermore, the positioning column is a stepped column, and the positioning column has different lengths, and is installed in the corresponding countersunk holes from short to long and from top to bottom;

[0016] Furthermore, the springs are of different lengths and are installed in the countersunk holes in sequence from short to long, located on the upper part of the positioning column, and are packaged in the countersunk holes by screws.

[0017] The working process of the utility model is:

[0018] Claw assembly: insert the rear end of the claw into the mounting hole of the processing equipment, guide the claw into the mounting hole through the spiral groove and the end face thread to complete the clamping assembly;

[0019] Parts Assembly:

[0020] (1) Obtain the axial clamping length of the part by measurement;

[0021] (2) According to the measured dimensions, select the corresponding positioning column for axial positioning;

[0022] (3) Clamp the parts with three jaws and make the workpiece close to the positioning column to ensure that the parts’ datums coincide.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] 1. The telescopic positioning chuck claw provided by the utility model uses a spring structure. During the positioning process of one positioning column of the new clamping claw, the other positioning columns are subjected to radial force and retracted into the claw body, which does not affect the radial clamping of the parts;

[0025] 2. The telescopic positioning chuck claw provided by the utility model has three positioning columns arranged at the clamping part of the claw, so the new claw can clamp and position parts of different lengths;

[0026] 3. The telescopic positioning chuck claw provided by the utility model has novel structure, quick installation, time saving, simple operation, simple processing, convenient use and reduced labor intensity.

[0027] In summary, the technical solution of the utility model solves the problems in the prior art of clamping batch parts with a chuck, because the chuck claws can only clamp the parts but cannot determine the axial positioning of the parts; the batch production efficiency is low, the labor intensity is high, and it is very time-consuming; the operation is cumbersome, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0030] Figure 2 This is an exploded view of the utility model;

[0031] Figure 3 This is a cross-sectional view of the claw body of the utility model;

[0032] Figure 4 This is the front view of the utility model;

[0033] Figure 5 This is a three-dimensional diagram of the utility model being assembled on processing equipment.

[0034] In the figure: 1, claw body 2, positioning column 3, spring 4, screw 5, countersunk hole 6, end surface thread 7, slot 8, parts. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0042] As shown in the figure, the utility model provides a telescopic positioning chuck claw whose main body is a claw body 1; the claw body 1 is a rectangular block structure, the rear end is processed into a mounting portion for connecting to a processing device, and the front end is processed into a chuck end face; a positioning assembly is assembled on the chuck end face for clamping parts.

[0043] The mounting portion consists of an end face thread 6 and a clamping groove 7, which is assembled with the processing equipment; the end face thread 6 is processed on the rear end face of the claw body 1, and is used to mesh with the thread groove of the processing equipment; the clamping groove 7 is arranged on the end faces of the claw body 1 on both sides at one end of the end face thread 6, and is used to cooperate with the mounting clamping hole of the processing equipment; the claw body 1 is assembled in the mounting clamping hole of the processing equipment through the clamping groove 7, and the end face thread 6 is meshed with the spiral groove of the processing equipment, and the claw body 1 is driven to reciprocate along the mounting clamping hole through the cooperation of the spiral groove and the end face thread 6.

[0044] The end surface of the chuck is a step-shaped structure, and each step is processed with a countersunk hole 5 parallel to the clamping groove 7, and each countersunk hole 5 is equipped with a set of positioning components.

[0045] The positioning assembly includes: a positioning column 2, a spring 3 and a screw 4; the positioning column 2 is a stepped column, and the positioning columns 2 have different lengths and are installed in the corresponding countersunk holes 5 from short to long from top to bottom; the springs 3 have different lengths and are installed in the countersunk holes 5 from short to long, located at the upper part of the positioning column 2, and are encapsulated in the countersunk holes 5 by the screws 4.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A telescopic positioning chuck claw, characterized in that: The main body of the telescopic positioning chuck claw is a claw body (1); The claw body (1) is a rectangular block structure, the rear end of which is processed into a mounting portion for connecting to a processing device, and the front end of which is processed into a chuck end face; The end surface of the chuck is equipped with a positioning component for clamping parts.

2. The telescopic positioning chuck claw according to claim 1, characterized in that: The mounting portion is composed of an end surface thread (6) and a clamping groove (7), and is assembled with processing equipment; The end face thread (6) is processed on the rear end face of the claw body (1) and is used to mesh with the thread groove of the processing equipment; The clamping groove (7) is arranged on both side end surfaces of the claw body (1) at one end of the end surface thread (6) and is used to cooperate with the mounting clamping hole of the processing equipment; The claw body (1) is assembled in the mounting hole of the processing equipment through the clamping groove (7), and the end surface thread (6) is meshed with the spiral groove of the processing equipment. The cooperation between the spiral groove and the end surface thread (6) drives the claw body (1) to reciprocate along the mounting hole.

3. The telescopic positioning chuck claw according to claim 1, characterized in that: The end surface of the chuck is a step-shaped structure, each step is processed with a countersunk hole (5) parallel to the clamping groove (7), and each countersunk hole (5) is equipped with a set of positioning components.

4. The telescopic positioning chuck claw according to claim 1, characterized in that: The positioning assembly comprises: a positioning column (2), a spring (3) and a screw (4); The positioning column (2) is a stepped column. The positioning column (2) has different lengths and is installed in the corresponding countersunk holes (5) from short to long and from top to bottom. The springs (3) are of different lengths and are installed in the countersunk holes (5) in order from short to long, located on the upper part of the positioning column (2), and are sealed in the countersunk holes (5) by screws (4).

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