Full-stroke pneumatic chuck capable of stably clamping

Abstract

The utility model discloses a whole stroke pneumatic chuck of stable clamping, including chuck body and locating base, locating base is provided the bottom of chuck body, the chuck body includes chuck body, through the cooperation of locating base, mounting groove, wedge-shaped groove and chucking subassembly, the whole stroke pneumatic chuck of stable clamping is more stable. The chuck body can be quickly positioned by the aid of the positioning base and the mounting groove, the chuck body can be quickly and accurately positioned at a required position, mounting and adjusting time is shortened, working efficiency is improved, the positioning base provides stable support for the chuck body, and the chuck body can be quickly and accurately positioned by the aid of the positioning base and the mounting groove. The chuck body can be accurately mounted on the positioning base through the mounting grooves, the chuck body can be quickly disassembled and assembled by greatly reducing the using number of fastening pieces such as fixing bolts and nuts, daily maintenance of the chuck body by workers is facilitated due to the design, and the service life of the chuck body can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic chucks, in particular to a full-stroke pneumatic chuck with stable clamping. Background Art

[0002] With the growing demand for high-precision and high-efficiency processing in modern manufacturing, the performance of clamping devices has become a key factor in determining processing quality and production efficiency. Among them, pneumatic chucks, as a widely used clamping device, play an important role in metal processing, mechanical manufacturing and other fields. However, existing pneumatic chucks still have some shortcomings in design and use, especially in the quick installation mechanism of the chuck body.

[0003] In existing pneumatic chuck technology, the chuck body is usually connected to the machine tool spindle through a large number of fasteners such as bolts and nuts. First, since the bolts and nuts need to be tightened or loosened one by one, the installation and disassembly process is cumbersome and time-consuming, which reduces work efficiency. Secondly, due to the large number of fasteners, the fasteners are prone to loosening or misalignment during installation, resulting in unstable clamping and may even cause damage to the workpiece and machine tool. Therefore, it is necessary to propose a full-stroke pneumatic chuck with stable clamping. Utility Model Content

[0004] The purpose of the utility model is to provide a full-stroke pneumatic chuck with stable clamping, aiming to solve the problem in the prior art that the chuck body is usually connected to the machine tool spindle by a large number of fasteners such as bolts and nuts. Firstly, since the bolts and nuts need to be tightened or loosened one by one, the installation and disassembly process is cumbersome and time-consuming, which reduces work efficiency. Secondly, due to the large number of fasteners, the fasteners are prone to loosening or misalignment during the installation process, resulting in unstable clamping and even damage to the workpiece and the machine tool.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A full-stroke pneumatic chuck with stable clamping, comprising a chuck body and a positioning base, wherein the positioning base is arranged at the bottom of the chuck body, the chuck body comprises a chuck body, three groups of movable claws are installed on the top of the chuck body, four groups of wedge-shaped grooves are provided in a circular array on the outer wall of the chuck body, a mounting groove adapted to the chuck body is provided on the top of the positioning base, the bottom of the chuck body is inserted into the interior of the mounting groove, and four groups of clamping components are provided on the inner wall of the mounting groove to cooperate with the wedge-shaped grooves to quickly position the chuck body.

[0007] Preferably, the clamping assembly includes a clearance groove, which is opened on the inner wall of the installation groove. A positioning block is slidably inserted inside the clearance groove, one end of the positioning block is fixedly connected to a return spring, and one end of the return spring is fixedly connected to the inner wall of one side of the clearance groove.

[0008] Preferably, one end of the positioning block is provided with a wedge-shaped portion adapted to the wedge-shaped groove, and the wedge-shaped portion is inserted into the interior of the wedge-shaped groove.

[0009] Preferably, the top of the wedge-shaped portion is slidably connected to the bottom of the chuck body, and the bottom of the positioning block abuts against the inner bottom of the wedge-shaped groove.

[0010] Preferably, four groups of positioning columns are fixedly installed on the bottom of the chuck body, and four groups of sockets adapted to the positioning columns are opened on the inner bottom of the installation groove, and the four groups of positioning columns are respectively inserted into the inside of the four groups of sockets.

[0011] Preferably, the four groups of positioning posts are all made of high-strength alloy, and the four groups of positioning posts and the four groups of insertion holes are all arranged in a ring array.

[0012] Preferably, four sets of fastening screws are further included, and the chuck body and the positioning base are bolted and fixed by the four sets of fastening screws.

[0013] Preferably, four groups of countersunk through holes are opened in a circular array on the outer wall of the positioning base, and four groups of threaded blind holes compatible with the fastening screws are opened in a circular array on the outer wall of the chuck body, and one end of the four groups of fastening screws respectively pass through the four groups of countersunk through holes and are threadedly connected to the inside of the four groups of threaded blind holes.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model plays the role of quickly positioning the chuck body by arranging the coordination of the positioning base, the mounting groove, the wedge-shaped groove and the clamping assembly. The design of the positioning base and the mounting groove enables the chuck body to be quickly and accurately positioned in the required position, reducing the time for installation and adjustment and improving work efficiency. The positioning base provides a stable support for the chuck body, while the mounting groove ensures that the chuck body can be accurately mounted on the positioning base. By greatly reducing the number of fasteners such as fixing bolts and nuts, the chuck body can be quickly disassembled and assembled, and this design also facilitates daily maintenance by the staff, which is conducive to increasing the service life of the chuck body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2Schematic diagram of the structure of the chuck body, positioning base and mounting groove of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the mounting groove and clamping assembly of the present utility model.

[0019] In the figure: 1. Chuck body; 101. Chuck body; 102. Movable jaw; 2. Positioning base; 3. Wedge groove; 4. Clamping assembly; 401. Relief groove; 402. Positioning block; 403. Return spring; 5. Mounting groove; 6. Wedge part; 7. Positioning column; 8. Insertion hole; 9. Fastening screw; 10. Countersunk through hole; 11. Threaded blind hole. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0022] A full-stroke pneumatic chuck with stable clamping, including a chuck body 1 and a positioning base 2. The positioning base 2 is arranged at the bottom of the chuck body 1. The chuck body 1 includes a chuck body 101. Three groups of movable jaws 102 are installed on the top of the chuck body 101. Four groups of wedge grooves 3 are arranged in an annular array on the outer wall of the chuck body 101. The top of the positioning base 2 is provided with a mounting groove 5 adapted to the chuck body 101. The bottom of the chuck body 101 is inserted into the inside of the mounting groove 5. Four groups of clamping assemblies 4 that cooperate with the wedge grooves 3 are arranged on the inner wall of the mounting groove 5 to quickly position the chuck body 1. By setting the cooperation of the positioning base 2, the mounting groove 5, the wedge groove 3 and the clamping assembly 4, the function of quickly positioning the chuck body 1 is achieved. The positioning base 2 provides stable support for the chuck body 1, and the mounting groove 5 ensures that the chuck body 1 can be accurately installed on the positioning base 2, reducing the installation and adjustment time and improving work efficiency. By significantly reducing the number of fasteners such as fixing bolts and nuts, the chuck body 1 can be quickly disassembled and assembled. Such a design also facilitates the daily maintenance of the staff and is beneficial to improving the service life of the chuck body;

[0023] The clamping assembly 4 includes a relief groove 401 which is opened on the inner wall of the installation groove 5. A positioning block 402 is slidably inserted into the interior of the relief groove 401. One end of the positioning block 402 is fixedly connected to a return spring 403, and one end of the return spring 403 is fixedly connected to one side inner wall of the relief groove 401;

[0024] One end of the positioning block 402 is provided with a wedge portion 6 adapted to the wedge groove 3, and the wedge portion 6 is inserted into the interior of the wedge groove 3;

[0025] The top of the wedge portion 6 is slidably connected to the bottom of the chuck body 101, and the bottom of the positioning block 402 abuts against the inner bottom of the wedge groove 3;

[0026] By adopting the above case, when the chuck body 1 needs to be installed, the chuck body 101 can be inserted into the interior of the installation groove 5. At this time, the bottom of the chuck body 101 contacts the wedge portion 6, and then the wedge portion 6 is extruded. At this time, the positioning block 402 slides towards the interior of the relief groove 401, thereby extruding the return spring 403. When one end of the positioning block 402 is completely aligned with the wedge groove 3, the return spring 403 is used to automatically insert the wedge portion 6 into the interior of the wedge groove 3 by its resilience, so as to achieve the effect of quickly positioning the chuck body 101 and saving the installation and adjustment time of the staff;

[0027] Four positioning columns 7 are fixedly installed at the bottom of the chuck body 101. Four jacks 8 adapted to the positioning columns 7 are opened at the inner bottom of the installation groove 5. The four positioning columns 7 are respectively inserted into the four jacks 8. By setting the cooperation of the positioning columns 7 and the jacks 8, the function of limiting the chuck body 101 is achieved;

[0028] The four positioning columns 7 are all made of high-strength alloy, and the four positioning columns 7 and the four jacks 8 are both arranged in a circular array. High-strength alloy usually has good wear resistance, which enables the positioning columns to maintain their shape and accuracy during long-term use and high-frequency clamping operations, and reduces the installation error caused by wear;

[0029] It also includes four fastening screws 9. The chuck body 101 and the positioning base 2 are bolted and fixed through the four fastening screws 9. Four countersunk through holes 10 are arranged in a circular array on the outer wall of the positioning base 2. Four threaded blind holes 11 adapted to the fastening screws 9 are arranged in a circular array on the outer wall of the chuck body 101. One ends of the four fastening screws 9 respectively penetrate through the four countersunk through holes 10 and are threadedly connected to the interiors of the four threaded blind holes 11; By greatly reducing the number of fasteners such as fixing bolts and nuts, the chuck body 1 can be quickly disassembled and assembled, and such a design also facilitates the staff to perform daily maintenance on it, which is beneficial to improving the service life of the chuck body 1.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic chuck with stable clamping throughout the entire stroke, comprising a chuck body (1) and a positioning base (2), characterized in that: The positioning base (2) is arranged at the bottom of the chuck body (1). The chuck body (1) includes a chuck body (101). Three movable chucks (102) are installed at the top of the chuck body (101). Four wedge-shaped grooves (3) are formed on the outer wall of the chuck body (101) in a circular array. An installation groove (5) adapted to the chuck body (101) is formed at the top of the positioning base (2). The bottom of the chuck body (101) is inserted into the installation groove (5). Four clamping components (4) are arranged on the inner wall of the installation groove (5) and cooperate with the wedge-shaped grooves (3) to quickly position the chuck body (1).

2. The full-stroke pneumatic chuck with stable clamping according to claim 1, characterized in that: The clamping component (4) includes a relief groove (401). The relief groove (401) is formed on the inner wall of the installation groove (5). A positioning block (402) is slidably inserted into the relief groove (401). One end of the positioning block (402) is fixedly connected to a return spring (403). One end of the return spring (403) is fixedly connected to one side inner wall of the relief groove (401).

3. The full-stroke pneumatic chuck with stable clamping according to claim 2, wherein: One end of the positioning block (402) is provided with a wedge-shaped portion (6) adapted to the wedge-shaped groove (3). The wedge-shaped portion (6) is inserted into the wedge-shaped groove (3).

4. The pneumatic chuck with stable clamping for the full stroke according to claim 3, characterized in that: The top of the wedge-shaped portion (6) is slidably connected to the bottom of the chuck body (101), and the bottom of the positioning block (402) abuts against the inner bottom of the wedge-shaped groove (3).

5. A full-stroke pneumatic chuck with stable clamping according to claim 1, characterized in that: Four positioning columns (7) are fixedly installed at the bottom of the chuck body (101). Four jacks (8) adapted to the positioning columns (7) are formed at the inner bottom of the installation groove (5). The four positioning columns (7) are respectively inserted into the four jacks (8).

6. The pneumatic chuck with stable clamping and full stroke according to claim 5, characterized in that: The four positioning columns (7) are all made of high-strength alloy, and the four positioning columns (7) and the four jacks (8) are both arranged in a circular array.

7. A full-stroke pneumatic chuck with stable clamping according to claim 1, characterized in that: It further includes four fastening screws (9). The chuck body (101) and the positioning base (2) are bolted and fixed through the four fastening screws (9).

8. A pneumatic chuck with stable clamping throughout the entire stroke according to claim 7, characterized in that: Four countersunk through holes (10) are formed on the outer wall of the positioning base (2) in a circular array. Four threaded blind holes (Il) adapted to the fastening screws (9) are formed on the outer wall of the chuck body (101) in a circular array. One ends of the four fastening screws (9) respectively penetrate through the four countersunk through holes (10) and are threadedly connected to the four threaded blind holes (Il).

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