Centering clamping mechanism suitable for long-axis part

Abstract

The utility model discloses a centering clamping mechanism suitable for a long-axis part. The centering clamping mechanism comprises a positioning seat, a through installation cavity is formed in the positioning seat in the axial direction of the positioning seat, a tip is arranged at one end in the installation cavity in a sliding mode, a cover plate is arranged at the end, close to the tip, of the positioning seat, and an elastic piece is arranged between the cover plate and the tip. The center hole of the part is tightly jacked through the center arranged in a sliding mode, then the part is clamped through the spring, the part is not separated from the center, it can be guaranteed that the part is clamped stably, and the outer circle of the machined part is good in run-out and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of parts positioning, in particular to a centering clamping mechanism suitable for long-axis parts. Background Art

[0002] In the process of automobile parts processing, the parts need to be positioned before processing. For long-axis parts, the existing positioning tooling has a short clamping position and a long suspended position, which leads to large part jumps during processing. Therefore, the product quality is poor and requires regular tracking and replacement, which is time-consuming and labor-intensive and is not suitable for large-scale stable production lines. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the present application provides a centering clamping mechanism suitable for long-axis parts, including a positioning seat, a mounting cavity extending through the positioning seat along its axial direction, a top being slidably arranged at one end of the mounting cavity, a cover plate being arranged at the end of the positioning seat close to the top, and an elastic member being arranged between the cover plate and the top.

[0004] Furthermore, the positioning seat is constructed as a cylindrical structure, the installation cavity includes a first cavity and a second cavity, the top and the elastic member are installed in the first cavity, and the second cavity is used for installing parts.

[0005] Furthermore, the tip includes a main body and a tip, and the main body is in sliding connection with the inner wall of the first cavity.

[0006] Furthermore, a limiting boss is provided between the first cavity and the second cavity, and the top portion can extend into the second cavity.

[0007] Furthermore, a limiting hole is formed inwardly at the free end of the main body, and at least a portion of the elastic member is installed in the limiting hole.

[0008] Furthermore, the elastic member is constructed as a spring.

[0009] Furthermore, a mounting boss is provided on the positioning seat for connecting to a machine tool.

[0010] Furthermore, the cover plate and the positioning seat are detachably connected to facilitate the installation and removal of the spring and the top.

[0011] The benefits of the present application lie in that the provided centering clamping mechanism suitable for long-axis parts uses a sliding center to tighten the center hole of the part, and then uses a spring to tighten the part so that the part does not separate from the center, thereby ensuring stable clamping of the part, and the outer circle runout of the processed part is good and stable. The manufacture is simple and suitable for use in mass production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of an embodiment of a centering clamping mechanism applicable to long-axis parts of the present application;

[0013] Figure 2 for Figure 1 Sectional view;

[0014] Figure 3 for Figure 2 Schematic diagram of the top structure;

[0015] Figure 4 for Figure 1 Schematic diagram of the middle cover structure.

[0016] Markings in the figure are: 10, positioning seat, 101, mounting cavity, 102, first cavity, 103, second cavity, 104, limiting boss, 11, cover plate, 111, protruding portion, 112, threaded hole, 12, top, 121, main body, 122, top portion, 123, limiting hole, 13, spring, 14, mounting boss. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0019] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0020] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0021] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] See also Figure 1-4 The present embodiment provides a centering clamping mechanism suitable for long-axis parts, including a positioning seat 10, a mounting cavity 101 extending through the positioning seat along its axial direction, a top 12 slidingly arranged at one end of the mounting cavity, a cover plate 11 arranged at the end of the positioning seat close to the top, and a spring 13 arranged between the cover plate 11 and the top 12.

[0024] Specifically, the positioning seat 10 is constructed as a cylindrical structure, and the internal installation cavity is divided into a first cavity 102 and a second cavity 103. The tip 12 and the spring 13 are installed in the first cavity 102, and the second cavity 103 is used to install parts. The length of the second cavity 103 can meet the distance that the part extends out of the positioning seat. The suspended position of the part should not be too long or too short. If it is too long, it will cause large part jumps, and if it is too short, it will be inconvenient to process.

[0025] More specifically, the tip 12 includes a main body 121 and a tip 122. The main body is also a cylindrical structure and is slidably connected to the inner wall of the first cavity 102. A limiting boss 104 is arranged between the first cavity 102 and the second cavity 103. The main body 121 abuts against the limiting boss 104 during the sliding process, and the tip can extend into the second cavity 103.

[0026] Preferably, a limiting hole 123 is provided inwardly at the free end of the main body 121 , and at least a portion of the spring 13 is installed in the limiting hole 123 , and the other end of the spring abuts against the cover plate 11 .

[0027] In order to facilitate the installation and removal of the spring 14 and the top 12, corresponding threaded holes 112 are provided on the cover plate 11 and the positioning seat 10. The cover plate is connected to the positioning seat by bolts, and a protrusion 111 is also provided on the cover plate for abutting against the spring.

[0028] The centering clamping mechanism of the present application is used to be installed on a machine tool, so a mounting boss 14 is provided at the other end of the positioning seat 10, and a mounting hole is provided on the mounting boss, which is also fixedly connected to the machine tool by bolts. After the positioning seat 10 is fixedly installed, the long axis part is inserted into the installation cavity 101, the center mouth of the part contacts the top, and then the spring 13 drives the top to tighten the part, and then the part is clamped by the three jaws on the machine tool.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A centering clamping mechanism suitable for long shaft parts, comprising a positioning seat, characterized in that: The positioning seat has a through installation cavity along its axial direction, a top is slidably arranged at one end of the installation cavity, a cover plate is arranged at the end of the positioning seat close to the top, and an elastic member is arranged between the cover plate and the top.

2. The centering and clamping mechanism for long-axis parts according to claim 1 is characterized in that: The positioning seat is constructed as a cylindrical structure, and the installation cavity includes a first cavity and a second cavity. The top and the elastic member are installed in the first cavity, and the second cavity is used for installing parts.

3. The centering and clamping mechanism for long-axis parts according to claim 2 is characterized in that: The tip includes a main body and a tip, and the main body is slidably connected to the inner wall of the first cavity.

4. The centering and clamping mechanism for long-axis parts according to claim 3 is characterized in that: A limiting boss is provided between the first cavity and the second cavity, and the top portion can extend into the second cavity.

5. The centering and clamping mechanism for long-axis parts according to claim 3 is characterized in that: A limiting hole is formed inwardly at the free end of the main body, and at least a portion of the elastic member is installed in the limiting hole.

6. The centering and clamping mechanism for long-axis parts according to claim 5 is characterized in that: The elastic element is configured as a spring.

7. The centering and clamping mechanism for long-axis parts according to claim 1 is characterized in that: A mounting boss is arranged on the positioning seat.

8. The centering and clamping mechanism for long-axis parts according to claim 1 is characterized in that: The cover plate and the positioning seat are detachably connected.

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