High-precision centering elastic jacket

Abstract

The utility model relates to machining field especially relates to a high accuracy centring elastic clamp sleeve. The utility model provides a high accuracy centring elastic clamp sleeve that can realize double clamping and centering positioning to the shaft, and the fixed effect is enhanced. A kind of high accuracy centring elastic clamp sleeve, including base, mounting sleeve, slider and sliding frame etc., the mounting sleeve is connected in base middle part front side, the sliding frame is slidably connected in base front part, and the slider is connected in sliding frame front side. The utility model slider moves and drives rotary frame rotation, so that clamping block is close to the shaft, and the shaft is clamped and positioned in the center, then start electric push rod, drive slide sleeve to move back, and the flexible clamp sleeve in the inside is extruded by the taper structure of slide sleeve front part, and the flexible clamp sleeve is further clamped and fixed to the shaft by deformation contraction, so that the shaft can be double clamped and positioned in the center, and the fixed effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a high-precision centering elastic sleeve. Background Technology

[0002] In the field of machining, high-precision machining of workpieces poses stringent challenges to positioning and clamping devices. When machining shaft and sleeve parts with high precision requirements, a high-precision centering and convenient, efficient clamping device is needed, leading to the development of high-precision centering elastic collets.

[0003] For example, CN202356943U discloses an elastic sleeve for a spindle, which has a frustum-shaped sleeve body with an axial through hole. The sleeve body has at least two pairs of left-end slits and right-end slits evenly distributed. The left-end slits are axial slits on the outer wall of the sleeve body from the left end to near the right bottom of the sleeve body; the right-end slits are axial slits on the outer wall of the sleeve body from the right end to near the left bottom of the sleeve body. Its overall structure is simple and flexible, not easy to jam, prevents foreign objects from entering the spindle, and has small circular runout and stability. However, because this elastic sleeve cannot double-clamp and center the spindle, its fixing and positioning effects are poor, and it is easy to deviate during use.

[0004] Therefore, it is necessary to design a high-precision centering elastic sleeve that can achieve dual clamping and centered positioning of the shaft, thereby enhancing the fixing effect. Utility Model Content

[0005] To overcome the shortcomings of existing elastic sleeves, which cannot double-clamp and center the spindle, have poor fixing and positioning effects, and are prone to displacement during use, this utility model provides a high-precision centering elastic sleeve that can achieve double clamping and centering of the shaft, thus enhancing the fixing effect.

[0006] The technical solution is: a high-precision centering elastic sleeve, including a base, a mounting sleeve, a slider, a sliding frame, a telescopic spring, a positioning component, and a clamping component. The mounting sleeve is connected to the front side of the middle part of the base, the sliding frame is slidably connected to the front part of the base, the slider is connected to the front side of the sliding frame, the telescopic spring is connected between the sliding frame and the base, the mounting sleeve is provided with a positioning component that can be centered, and the base is provided with a clamping component that can be clamped.

[0007] Furthermore, the positioning component includes a rotating frame, a clamping block, a protective pad, and a protective cover. Multiple rotating frames are rotatably connected to the front of the mounting sleeve. Each rotating frame is rotatably connected to the slider. A clamping block is connected to the inner side of each rotating frame. A protective pad is connected to the inner side of each clamping block. A protective cover is connected to the front of the base.

[0008] Furthermore, all protective pads are curved.

[0009] Furthermore, the protective pads are all equipped with anti-slip textures.

[0010] Furthermore, it also includes a clamping assembly, which includes a flexible clamp, an electric actuator, a sliding sleeve, and a guide rod. Multiple flexible clamps are connected to the front side of the protective cover, and electric actuators are connected to the front sides of both the upper and lower parts of the base. The electric actuators are electrically connected to the processor through a control module. Sliding sleeves are connected between the telescopic ends of the electric actuators, and the flexible clamps are in contact with the inner side of the sliding sleeves. Guide rods are connected to the rear sides of both the upper and lower parts of the sliding sleeves, and the guide rods are slidably connected to the protective cover.

[0011] Furthermore, the front part of the sliding sleeve has a conical structure.

[0012] The beneficial effects are as follows: When the slider of this utility model moves, it drives the rotating frame to rotate, causing the clamping block to move closer to the shaft and initially center and clamp the shaft. Then, the electric push rod is activated, which drives the sliding sleeve to move backward. The conical structure at the front of the sliding sleeve squeezes the internal flexible sleeve, and the flexible sleeve deforms and contracts to further clamp the shaft, thus achieving double clamping and centering of the shaft, enhancing the fixing effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the base and rotating frame and other components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the slider and clamping block and other components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the protective cover and flexible jacket of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the electric actuator and sliding sleeve components of this utility model.

[0018] The component names and serial numbers in the figure are as follows: 1_base, 2_mounting sleeve, 3_slider, 4_sliding bracket, 5_telescopic spring, 6_rotating bracket, 7_clamping block, 8_protective pad, 9_protective cover, 10_flexible clamp, 11_electric actuator, 12_sliding sleeve, 13_guide rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] A high-precision centering elastic jacket, such as Figures 1-3As shown, it includes a base 1, a mounting sleeve 2, a slider 3, a sliding frame 4, a telescopic spring 5, a positioning component, and a clamping component. The mounting sleeve 2 is connected to the front side of the middle part of the base 1. The sliding frame 4 is slidably connected to the front part of the base 1. The slider 3 is connected to the front side of the sliding frame 4. The telescopic spring 5 is connected between the sliding frame 4 and the base 1. The mounting sleeve 2 is provided with a positioning component, and the base 1 is provided with a clamping component.

[0021] like Figures 1-4 As shown, the positioning assembly includes a rotating frame 6, a clamping block 7, a protective pad 8, and a protective cover 9. The front of the mounting sleeve 2 is rotatably connected to three rotating frames 6, each of which is rotatably connected to the slider 3. The inner side of each rotating frame 6 is connected to a clamping block 7, and the inner side of each clamping block 7 is connected to a protective pad 8. The protective pads 8 are all arc-shaped to facilitate clamping, and each protective pad 8 is provided with anti-slip texture to increase friction. The front side of the base 1 is connected to a protective cover 9.

[0022] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it also includes a clamping assembly, which includes a flexible clamp 10, an electric push rod 11, a sliding sleeve 12, and a guide rod 13. Six flexible clamps 10 are connected to the front side of the protective cover 9. Electric push rods 11 are connected to the front sides of both the upper and lower parts of the base 1. The electric push rods 11 are electrically connected to the processor through a control module. Sliding sleeves 12 are connected between the telescopic ends of the electric push rods 11. The front part of the sliding sleeve 12 has a conical structure. The flexible clamps 10 are in contact with the inner side of the sliding sleeve 12. Guide rods 13 are connected to the rear sides of both the upper and lower parts of the sliding sleeve 12. The guide rods 13 are slidably connected to the protective cover 9.

[0023] When using this device, first install the base 1 in the area of ​​use, then insert the shaft into the mounting sleeve 2. The shaft presses the slider 3 to move backward, and the slider 3 drives the sliding frame 4 to move backward, causing the telescopic spring 5 to be compressed and contracted. When the slider 3 moves, it drives the rotating frame 6 to rotate, causing the clamping block 7 to move closer to the shaft. With the help of the protective pad 8, the shaft is initially centered and clamped. Then, the electric push rod 11 is activated, which drives the sliding sleeve 12 to move backward, causing the guide rod 13 to move backward on the protective cover 9. The conical structure at the front of the sliding sleeve 12 presses the internal flexible clamp 10. The flexible clamp 10 deforms and contracts to further clamp the shaft, thereby clamping and fixing the shaft. This achieves double clamping and centered positioning of the shaft, enhancing the fixing effect. The protective pad 8 can prevent damage to the shaft during clamping, and the protective cover 9 can shield and protect the internal device.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high precision centering spring collet, characterized in that, It includes a base (1), a mounting sleeve (2), a slider (3), a sliding frame (4), a telescopic spring (5), a positioning component, and a clamping component. The mounting sleeve (2) is connected to the front of the middle part of the base (1). The sliding frame (4) is slidably connected to the front of the base (1). The slider (3) is connected to the front of the sliding frame (4). The telescopic spring (5) is connected between the sliding frame (4) and the base (1). The mounting sleeve (2) is provided with a positioning component that can be positioned in the center. The base (1) is provided with a clamping component that can be clamped.

2. The high-precision centering elastic sleeve according to claim 1, characterized in that, The positioning assembly includes a rotating frame (6), a clamping block (7), a protective pad (8), and a protective cover (9). The front of the mounting sleeve (2) is rotatably connected to multiple rotating frames (6). Each rotating frame (6) is rotatably connected to the slider (3). Each rotating frame (6) is connected to a clamping block (7) on its inner side. Each clamping block (7) is connected to a protective pad (8) on its inner side. The front of the base (1) is connected to a protective cover (9).

3. A high-precision centering elastic sleeve according to claim 2, characterized in that, All protective pads (8) are arc-shaped structures.

4. A high-precision centering elastic sleeve according to claim 2, characterized in that, The protective pads (8) are all equipped with anti-slip textures.

5. A high-precision centering elastic sleeve according to claim 1, characterized in that, It also includes a clamping assembly, which includes a flexible clamp (10), an electric push rod (11), a sliding sleeve (12), and a guide rod (13). Multiple flexible clamps (10) are connected to the front side of the protective cover (9). Electric push rods (11) are connected to the front sides of both the upper and lower parts of the base (1). The electric push rods (11) are electrically connected to the processor through the control module. Sliding sleeves (12) are connected between the telescopic ends of the electric push rods (11). The flexible clamps (10) are in contact with the inner side of the sliding sleeves (12). Guide rods (13) are connected to the rear sides of both the upper and lower parts of the sliding sleeves (12). The guide rods (13) are slidably connected to the protective cover (9).

6. A high-precision centering elastic sleeve according to claim 5, characterized in that, The front part of the sliding sleeve (12) has a conical structure.

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