Modularized flexible collet
Through the design of modular flexible collets, the flexible clamping and clamping force adjustment of parts is achieved by using the elastic air chamber and pressure regulating device, which solves the problem of insufficient clamping deformation control of thin-walled cylinder parts by existing collets, and realizes the problem of insufficient clamping deformation of existing collets. The clamping force is adjustable and modularly designed to ensure coaxiality and uniform clamping of parts.
Patent Information
- Application Number
- CN202420895328.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Existing clamping clamping deformation of thin-walled cylinder parts is difficult to effectively control the clamping deformation, and the clamping force is insufficient, making it impossible to achieve adjustable clamping force and modular design.
A modular flexible cuff is designed, including a collet main body, support ring, elastic air chamber, seal ring, end cover, rotary joint and pressure regulating device. The flexible clamping of the parts is achieved through the expansion of the elastic air chamber and through The pressure regulating device adjusts the clamping force, and combines the coordination of the support ring and the sealing ring to achieve radial positioning and tightening of the parts.
The clamping force is adjustable and the deformation of the parts is controlled, which ensures the coaxiality between the inner hole and the outer circle, and provides flexible clamping and modular design to adapt to the uniform clamping of different parts shapes.
Smart Images
Figure CN222243738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of clamps for machining inner holes of thin-walled tube parts, in particular to a flexible tube clamp capable of flexible clamping and modular design. Background Art
[0002] At present, it is difficult for existing collets to solve the problem of deformation of parts when clamping thin-walled cylindrical parts. Utility Model Content
[0003] Purpose of the utility model: To address the shortcomings of existing collets in controlling deformation of thin-walled tubular parts, a modular flexible collet is provided to achieve adjustable clamping force, modularization, and serialized clamping.
[0004] Technical solution of the utility model: a modular flexible collet, comprising a collet body, a support ring, an elastic air chamber, a sealing ring, an end cover, a rotary joint and a pressure regulating device. The collet body is provided with an axial vent hole, and the collet body is installed on the spindle of the machine tool by clamping a cylindrical surface. The inner hole of the collet body is provided with a cylindrical surface, which cooperates with the support ring; the elastic air chamber is provided with a cylindrical surface, which cooperates with the inner hole of the collet body; the elastic air chamber is provided with an annular groove, which cooperates with the sealing ring; the right end of the collet body is provided with a threaded surface, which cooperates with the end cover to form an enclosed space; the left end face of the collet body is successively installed with a rotary joint and a pressure regulating device, and compressed air is connected to the pressure regulating device end, and is transmitted to the elastic air chamber through the rotary joint and the inner hole of the collet body, and the elastic air chamber is expanded under force to clamp the parts.
[0005] In the above scheme, a vent hole 1 is provided in the center and axial direction of the left side of the collet body, and a vent hole 2 is provided in the radial direction. The vent hole 1 and the vent hole 2 cooperate with the elastic air chamber to form a through air passage, so that compressed air enters the elastic air chamber to achieve expansion.
[0006] In the above scheme, the elastic air chamber, the support ring and the sealing ring together form an elastic unit, so that the part to be processed can be positioned and tightened in the radial direction.
[0007] In the above solution, there are multiple elastic air chambers, and the multiple elastic air chambers are connected in series to form a modular elastic unit.
[0008] In the above solution, the number of the elastic air chambers is determined by the length of the cylindrical surface provided on the inner hole at the right end of the collet body.
[0009] In the above scheme, a threaded hole is provided at the left end of the collet body, and the threaded hole cooperates with the rotary joint to enable the workpiece to be processed by rotation or non-rotation.
[0010] In the above solution, the rotary joint is provided with a threaded hole, and the threaded hole cooperates with the pressure regulating device, and the required pressure is obtained by adjusting the pressure regulating device.
[0011] In the above solution, the elastic material is a flexible material such as rubber or plastic with a high expansion coefficient and sealing performance.
[0012] The utility model has the advantages and beneficial effects of: realizing flexible clamping, uniform distribution of clamping force according to the shape of parts; realizing modularization and serialization; realizing adjustable clamping force and controlling deformation of parts; and effectively ensuring the coaxiality of the inner hole and the outer circle. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the modular flexible collet of the utility model;
[0014] Figure 2 It is a cross-sectional view of the main body of the collet of the utility model;
[0015] Figure 3 This is a cross-sectional view of the support ring of the utility model;
[0016] Figure 4 This is a cross-sectional view of the elastic air chamber of the utility model;
[0017] Figure 5 This is a cross-sectional view of the end cover structure of the utility model;
[0018] Figure 6 This is a schematic diagram of the structure of the rotary joint of the utility model;
[0019] Figure 7 It is a structural schematic diagram of the voltage regulating device of the utility model.
[0020] In the figure, 1 is the collet body, 2 is the support ring, 3 is the elastic air chamber, 4 is the sealing ring, 5 is the end cover, 6 is the rotary joint, and 7 is the pressure regulating device. DETAILED DESCRIPTION
[0021] The present invention is further described in detail below through specific implementation modes:
[0022] Figure 1As shown in Figure 7, the modular flexible collet described in the utility model includes a collet body 1. The collet body 1 is sequentially installed with a support ring 2, an elastic air chamber 3, and a sealing ring 4 on the cylindrical surface of the inner hole at the right end, and the end cover 5 is locked to form a closed space. The left end surface of the collet body 1 is sequentially installed with a rotary joint 6 and a pressure regulating device 7. Compressed air is connected to the end of the pressure regulating device 7, and is transmitted to the elastic air chamber through the rotary joint 6 and the inner hole of the collet body 1. The elastic air chamber is forced to expand and tighten the parts to achieve the clamping of the parts. The rotary joint 6 is used to realize the rotation of the collet body and the pressure regulating device respectively. The compressed air pressure is adjusted by the pressure regulating device 7 to achieve the adjustment of the tensioning force. The elastic air chamber 3 expands with the shape of the object under the action of pressure. When the object maintains its original shape, the force acting on the object is uniform, forming a flexible clamping, and the corresponding changes are produced as the shape of the object changes, resulting in uniform force changes, reducing the deformation of the object.
[0023] The elastic air chamber material is selected from flexible materials with high expansion coefficient, such as rubber, plastic and other flexible materials with sealing effect.
[0024] The support ring 2 and the elastic air chamber 3 of the utility model can be replaced with support rings 2 and elastic air chambers 3 of different diameters and numbers based on the collet body 1 as required to achieve modularization.
[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A modular flexible collet, comprising a collet body (1), a support ring (2), an elastic air chamber (3), a sealing ring (4), an end cover (5), a rotary joint (6) and a pressure regulating device (7), wherein the collet body (1) is provided with an axial vent hole, and the collet body (1) is mounted on a spindle of a machine tool by clamping a cylindrical surface, and is characterized in that: The inner hole of the collet body (1) is provided with a cylindrical surface, which cooperates with the support ring (2); the elastic air chamber (3) is provided with a cylindrical surface, which cooperates with the inner hole of the collet body (1); the elastic air chamber (3) is provided with an annular groove, which cooperates with the sealing ring (4); the right end of the collet body is provided with a threaded surface, which cooperates with the end cover (5) to form a closed space; the left end surface of the collet body (1) is successively installed with a rotary joint (6) and a pressure regulating device (7), and compressed air is connected to the pressure regulating device end and transmitted to the elastic air chamber (3) through the rotary joint (6) and the inner hole of the collet body (1), and the elastic air chamber (3) is expanded by force to clamp the parts.
2. The modular flexible collet according to claim 1, characterized in that The collet body (1) is provided with a first vent hole at the center of the left side and in the axial direction, and a second vent hole is provided in the radial direction. The first vent hole and the second vent hole cooperate with the elastic air chamber (3) to form a through air passage, so that compressed air enters the elastic air chamber to achieve expansion.
3. The modular flexible collet according to claim 1, characterized in that The elastic air chamber (3), the support ring (2) and the sealing ring (4) together form an elastic unit, which enables the parts to be processed to be positioned and tightened in the radial direction.
4. The modular flexible collet according to claim 3, characterized in that There are a plurality of elastic air chambers (3), and the plurality of elastic air chambers (3) are connected in series to form a modular elastic unit.
5. The modular flexible collet according to claim 4, characterized in that The number of the elastic air chambers (3) is determined by the length of the cylindrical surface provided on the inner hole at the right end of the collet body (1).
6. The modular flexible collet according to claim 1, characterized in that The left end of the collet body (1) is provided with a threaded hole, which cooperates with the rotary joint (6) to enable the workpiece to be processed to be processed by rotation or non-rotation.
7. The modular flexible collet according to claim 1, characterized in that The rotary joint (6) is provided with a threaded hole, which cooperates with the pressure regulating device (7), and the required pressure is obtained by adjusting the pressure regulating device (7).
8. The modular flexible collet according to claim 1, characterized in that The elastic material is a flexible material such as rubber or plastic with a high expansion coefficient and sealing performance.