A rotating bracket milling clamping fixture

CN224274176UActive Publication Date: 2026-05-26JIANGXI BENITE AVIATION EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI BENITE AVIATION EQUIPMENT CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing milling fixtures cannot be flexibly adjusted to accommodate different workpiece sizes, resulting in increased adjustment time and affecting processing efficiency.

Method used

A rotating bracket milling clamping fixture was designed, comprising a fixing mechanism, a rotating mechanism, and a protective mechanism. Through the cooperation of the pressure frame and the bidirectional screw, it can conveniently fix materials of different coarseness and fineness, and adjust the material angle through the rotating mechanism. The stability is improved by utilizing the self-locking characteristics of the worm and worm wheel.

Benefits of technology

It enables convenient fixing and angle adjustment of materials of different coarseness and fineness, improves processing stability and efficiency, and prevents screw loosening from affecting the fixing effect.

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Abstract

This utility model relates to the field of fixture technology and discloses a rotating bracket milling clamping fixture, including a fixing mechanism, a rotating mechanism, and a protective mechanism. The fixing mechanism is located inside the protective mechanism, and the rotating mechanism is located at the lower end of the fixing mechanism. The fixing mechanism includes a mounting frame, a rotating frame is fixedly connected to the side end of the mounting frame, and a bidirectional screw is rotatably connected to the inner wall of the mounting frame. A slider is threadedly connected to the surface of the bidirectional screw. This utility model uses the sliding of the pressure frame to compress the limiting sleeve and the bidirectional screw to drive the two clamping frames to interlock. This design achieves convenient fixing of materials of different thicknesses while relying on the pressure of the pressure frame on the limiting sleeve to further limit the rotation of the bidirectional screw, preventing the bidirectional screw from loosening and affecting the fixing of materials during subsequent use, thus making the subsequent use of the device more stable.
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Description

Technical Field

[0001] This utility model relates to the field of fixed tooling technology, and in particular to a rotating bracket milling clamping and fixing tooling. Background Technology

[0002] Milling fixtures are tools and equipment used to hold the workpiece in place during the milling process. They are designed to ensure the workpiece remains stable during machining, preventing movement or vibration. By precisely positioning, fixing, and supporting the workpiece, they help improve machining accuracy and efficiency.

[0003] When using milling fixtures, sometimes it is difficult to adjust the fixtures to accommodate different workpiece sizes due to variations in workpiece type and dimensions. This limitation often results in additional time being spent adjusting the fixtures, thus affecting the efficiency of subsequent processing. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a rotating bracket milling clamping and fixing fixture.

[0005] This utility model is achieved by the following technical solution: a rotating bracket milling clamping and fixing fixture, including a fixing mechanism, a rotating mechanism and a protective mechanism, wherein the fixing mechanism is located inside the protective mechanism and the rotating mechanism is located at the lower end of the fixing mechanism;

[0006] The fixing mechanism includes a mounting frame, a rotating frame fixedly connected to the side end of the mounting frame, a bidirectional screw rotatably connected to the inner wall of the mounting frame, a slider threadedly connected to the surface of the bidirectional screw, a clamping frame fixedly connected to the side end of the slider, a limiting sleeve fixedly connected to the surface of the bidirectional screw, a limiting screw threadedly connected to the inner wall of the rotating frame, a pressure frame rotatably connected to the top end of the limiting screw, a side end of the pressure frame contacting the surface of the limiting sleeve, a surface of the slider slidingly connected to the inner wall of the mounting frame, and a side end of the clamping frame slidingly connected to the surface of the mounting frame.

[0007] The above technical solution utilizes the sliding of the pressure frame to compress the limiting sleeve and the design of the two clamping frames interlocking with the bidirectional screw drive. This achieves the purpose of conveniently fixing materials of different thicknesses while also relying on the pressure of the pressure frame on the limiting sleeve to further limit the rotation of the bidirectional screw, preventing the bidirectional screw from loosening and affecting the fixing of materials during subsequent use, thus making the subsequent use of the device more stable.

[0008] As a further improvement to the above solution, the rotating mechanism includes a knob, a connecting shaft is fixedly connected to the left end of the knob, a first bevel gear is fixedly connected to the surface of the connecting shaft, a second bevel gear meshes with the rear end of the first bevel gear, a worm is fixedly connected to the inner wall of the second bevel gear, a worm wheel meshes with the upper end of the worm, and there are two first bevel gears, which are symmetrically distributed at the midpoint of the connecting shaft.

[0009] By using the above technical solution, the rotation of the knob drives the worm gears on both sides to rotate the rotating frame, and the self-locking characteristic between the worm and the worm gear enables convenient adjustment of the angle of the fixed material, making the subsequent use of the device more convenient.

[0010] As a further improvement to the above solution, the protective mechanism includes a protective shell, a fixed base plate fixedly connected to the lower end of the protective shell, an inner wall of the protective shell rotatably connected to the surface of the connecting shaft, an inner wall of the protective shell rotatably connected to the surface of the worm gear, a surface of the rotating frame rotatably connected to the inner wall of the protective shell, and an inner wall of the rotating frame fixedly connected to the surface of the worm wheel.

[0011] The above technical solutions provide connection and protection for the various parts of the device, making the subsequent use of the device more stable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model employs a fixing mechanism, specifically: rotating the limiting screw causes the pressure frame to separate from the limiting sleeve, thereby releasing the rotation restriction on the bidirectional screw. Then, rotating the bidirectional screw within the mounting frame causes the two sliders on its surface to move under the constraint of the mounting frame, thus causing the upper and lower clamping frames to separate. The material to be clamped is then placed between the two clamping frames through the gap created by their separation. The bidirectional screw is then rotated in the opposite direction again to bring the sliders closer together, thereby driving the clamping frames towards the material in the center. After the two clamping frames contact, the mechanism opens... The device clamps the material in the middle during initial clamping. After clamping, the limiting screw is rotated back, causing the pressure frame to re-adhere to the limiting sleeve and apply pressure to it. This completes the material fixing process. The design of using the sliding of the pressure frame to compress the limiting sleeve and the bidirectional screw to drive the two clamping frames to interlock allows for convenient fixing of materials of different thicknesses while also using the pressure of the pressure frame on the limiting sleeve to further limit the rotation of the bidirectional screw. This prevents the bidirectional screw from loosening during subsequent use and affecting the fixing of the material, making the device more stable in subsequent use.

[0014] This invention utilizes a rotating mechanism: rotating a knob drives a connecting shaft to rotate, which in turn drives the first bevel gears on both sides to rotate. Simultaneously, the rotation of the first bevel gears transmits power to the second bevel gear, which in turn drives the worm gear to rotate. This, in turn, drives the upper worm wheel to rotate the rotating frame, thereby achieving the adjustment of the material's angle. The rotation of the knob drives the worm gears on both sides to rotate the rotating frame, and the self-locking characteristic between the worm gear and the worm wheel enables convenient adjustment of the angle of the fixed material, making the subsequent use of the device more convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the specific component structure of the fixing mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the fixing mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the fixing mechanism and the rotating mechanism of this utility model.

[0020] Explanation of key symbols:

[0021] 1. Fixing mechanism; 101. Mounting bracket; 102. Rotating bracket; 103. Bidirectional screw; 104. Slider; 105. Clamping bracket; 106. Restricting sleeve; 107. Restricting screw; 108. Pressure bracket; 2. Rotating mechanism; 201. Knob; 202. Connecting shaft; 203. First bevel gear; 204. Second bevel gear; 205. Worm gear; 206. Worm wheel; 3. Protective mechanism; 301. Protective housing; 302. Fixing base plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example:

[0024] Please combine Figure 1-5 The rotating bracket milling clamping and fixing fixture of this embodiment includes a fixing mechanism 1, a rotating mechanism 2 and a protective mechanism 3. The fixing mechanism 1 is located inside the protective mechanism 3, and the rotating mechanism 2 is located at the lower end of the fixing mechanism 1.

[0025] The fixing mechanism 1 includes a mounting frame 101. A rotating frame 102 is fixedly connected to the side end of the mounting frame 101. A bidirectional screw 103 is rotatably connected to the inner wall of the mounting frame 101. A slider 104 is threadedly connected to the surface of the bidirectional screw 103. A clamping frame 105 is fixedly connected to the side end of the slider 104. A limiting sleeve 106 is fixedly connected to the surface of the bidirectional screw 103. A limiting screw 107 is threadedly connected to the inner wall of the rotating frame 102. A pressure frame 108 is rotatably connected to the top of the limiting screw 107. The design uses the sliding of the pressure frame 108 to compress the limiting sleeve 106 and drive the two clamping frames 105 to engage with each other. This design achieves the purpose of conveniently fixing materials of different thicknesses while also relying on the pressure of the pressure frame 108 on the limiting sleeve 106 to further limit the rotation of the bidirectional screw 103. This prevents the bidirectional screw 103 from loosening and affecting the fixing of materials during subsequent use, making the subsequent use of the device more stable.

[0026] The side end of the pressure frame 108 contacts the surface of the limiting sleeve 106, the surface of the slider 104 is slidably connected to the inner wall of the mounting frame 101, and the side end of the clamping frame 105 is slidably connected to the surface of the mounting frame 101.

[0027] The rotating mechanism 2 includes a knob 201. A connecting shaft 202 is fixedly connected to the left end of the knob 201. A first bevel gear 203 is fixedly connected to the surface of the connecting shaft 202. A second bevel gear 204 meshes with the rear end of the first bevel gear 203. A worm 205 is fixedly connected to the inner wall of the second bevel gear 204. A worm wheel 206 meshes with the upper end of the worm 205. The rotation of the knob 201 drives the worm wheels 206 on both sides to drive the rotating frame 102 to rotate. The self-locking characteristic between the worm 205 and the worm wheel 206 enables convenient adjustment of the angle of the fixed material, making the subsequent use of the device more convenient.

[0028] There are two first bevel gears 203, which are symmetrically distributed at the midpoint of the connecting shaft 202.

[0029] The protective mechanism 3 includes a protective shell 301, and a fixed base plate 302 is fixedly connected to the lower end of the protective shell 301.

[0030] The inner wall of the protective housing 301 is rotatably connected to the surface of the connecting shaft 202, and the inner wall of the protective housing 301 is rotatably connected to the surface of the worm gear 205.

[0031] The surface of the rotating frame 102 is rotatably connected to the inner wall of the protective housing 301, and the inner wall of the rotating frame 102 is fixedly connected to the surface of the worm gear 206.

[0032] The implementation principle of the rotary bracket milling clamping and fixing fixture in this embodiment is as follows: When using the device, first rotate the limiting screw 107 to cause the pressure frame 108 to separate from the limiting sleeve 106, thereby releasing the rotation restriction on the bidirectional screw 103. Then rotate the bidirectional screw 103 to make it rotate inside the mounting frame 101. At the same time, the two sliders 104 on its surface move on the surface under the restriction of the mounting frame 101, thereby causing the upper and lower clamping frames 105 to separate. Then, the material to be clamped is removed from the two clamping frames 105. After the material is separated, the gap created is placed between the two clamping frames 105. Then, the bidirectional screw 103 is rotated in the opposite direction to drive the slider 104 to move closer together, thereby driving the clamping frames 105 to move closer to the material in the middle. After the two clamping frames 105 come into contact, they begin to clamp the material in the middle. After clamping, the limiting screw 107 is rotated back, thereby driving the pressure frame 108 to come into contact with the limiting sleeve 106 again and apply pressure to the limiting sleeve 106. This completes the fixing of the material. The sliding of the pressure frame 108 is used to press the limiting sleeve 106. The design of the extrusion mechanism and the interlocking of the two clamping frames 105 driven by the bidirectional screw 103 allows for convenient fixing of materials of different thicknesses while also using the pressure of the pressure frame 108 on the limiting sleeve 106 to further limit the rotation of the bidirectional screw 103. This prevents the bidirectional screw 103 from loosening and affecting the fixing of the material during subsequent use, making the device more stable. When it is necessary to adjust the processing angle of the material, rotating the knob 201 will drive the connecting shaft 202 to rotate, thereby... The first bevel gears 203 on both sides are driven to rotate. At the same time, the rotation of the first bevel gears 203 drives the second bevel gear 204 to drive the worm gear 205 to rotate, which in turn drives the upper worm wheel 206 to drive the rotating frame 102 to rotate, thereby realizing the adjustment of the material angle. The rotation of the knob 201 drives the worm wheels 206 on both sides to drive the rotating frame 102 to rotate. The self-locking characteristic between the worm gear 205 and the worm wheel 206 realizes the purpose of conveniently adjusting the angle of the fixed material, making the subsequent use of the device more convenient.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A rotary support milling clamping fixture, characterized by, It includes a fixing mechanism (1), a rotating mechanism (2) and a protective mechanism (3), wherein the fixing mechanism (1) is located inside the protective mechanism (3) and the rotating mechanism (2) is located at the lower end of the fixing mechanism (1); The fixing mechanism (1) includes a mounting frame (101), a rotating frame (102) is fixedly connected to the side end of the mounting frame (101), a bidirectional screw (103) is rotatably connected to the inner wall of the mounting frame (101), a slider (104) is threadedly connected to the surface of the bidirectional screw (103), a clamping frame (105) is fixedly connected to the side end of the slider (104), a limiting sleeve (106) is fixedly connected to the surface of the bidirectional screw (103), a limiting screw (107) is threadedly connected to the inner wall of the rotating frame (102), and a pressure frame (108) is rotatably connected to the top end of the limiting screw (107).

2. The clamping and fixing tool for rotary support milling as claimed in claim 1, characterized in that: The side end of the pressure frame (108) is in contact with the surface of the limiting sleeve (106), the surface of the slider (104) is slidably connected to the inner wall of the mounting frame (101), and the side end of the clamping frame (105) is slidably connected to the surface of the mounting frame (101).

3. The rotating bracket milling clamping and fixing fixture as described in claim 2, characterized in that: The rotating mechanism (2) includes a knob (201), a connecting shaft (202) is fixedly connected to the left end of the knob (201), a first bevel gear (203) is fixedly connected to the surface of the connecting shaft (202), a second bevel gear (204) is meshed at the rear end of the first bevel gear (203), a worm gear (205) is fixedly connected to the inner wall of the second bevel gear (204), and a worm wheel (206) is meshed at the upper end of the worm gear (205).

4. The rotating bracket milling clamping and fixing fixture as described in claim 3, characterized in that: There are two first bevel gears (203), and the first bevel gears (203) are symmetrically distributed at the midpoint of the connecting shaft (202).

5. The rotating bracket milling clamping and fixing fixture as described in claim 4, characterized in that: The protective mechanism (3) includes a protective shell (301), and a fixed base plate (302) is fixedly connected to the lower end of the protective shell (301).

6. The rotating bracket milling clamping and fixing fixture as described in claim 5, characterized in that: The inner wall of the protective shell (301) is rotatably connected to the surface of the connecting shaft (202), and the inner wall of the protective shell (301) is rotatably connected to the surface of the worm (205).

7. The rotating bracket milling clamping and fixing fixture as described in claim 6, characterized in that: The surface of the rotating frame (102) is rotatably connected to the inner wall of the protective shell (301), and the inner wall of the rotating frame (102) is fixedly connected to the surface of the worm gear (206).