A milling machine processing tooling fixture
Patent Information
- Application Number
- CN202521508007.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-18
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-07-18
AI Technical Summary
[0003]然而,现有的铣床加工工装夹具分为两种,一种为机械夹具:传统机械夹具(如平口钳、螺栓夹具)的夹持力依赖于操作人员的手动调节,难以保证夹持力的均匀性和稳定性,导致工件在加工过程中发生松动或振动;另一种为液压夹具:液压夹具虽然能够提供较大的夹持力,但其夹持力的调节和控制较为复杂,难以实现精确控制
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Figure CN224642908U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of milling machine tooling fixture technology, and particularly relates to a milling machine machining tooling fixture. Background Technology
[0002] Milling is a common metal processing method in manufacturing, widely used in machinery manufacturing, aerospace, and automotive industries. During milling, workpiece fixation and positioning are crucial, directly affecting machining accuracy, efficiency, and operational safety. Therefore, the design and use of tooling fixtures are key aspects of milling. Tooling fixtures are devices used to fix, position, and clamp workpieces during machining. Their main functions include: positioning: ensuring the workpiece maintains the correct position during machining to guarantee machining accuracy; clamping: preventing workpiece movement or vibration during machining to ensure machining stability; improving efficiency: reducing auxiliary time and increasing production efficiency through rapid clamping and positioning; and ensuring safety: preventing workpiece detachment or displacement during machining to ensure operator safety.
[0003] However, existing milling machine tooling fixtures are divided into two types: mechanical fixtures and hydraulic fixtures. Mechanical fixtures (such as flat-jaw vises and bolt clamps) rely on manual adjustment by the operator to maintain the clamping force, which makes it difficult to ensure the uniformity and stability of the clamping force, resulting in the workpiece loosening or vibrating during processing. Hydraulic fixtures can provide a larger clamping force, but the adjustment and control of the clamping force are more complex and difficult to achieve precise control.
[0004] Therefore, this utility model provides a milling machine tooling fixture to solve the problems existing in the prior art. Utility Model Content
[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a milling machine machining fixture, comprising:
[0006] The fixture housing contains a drive motor, the output end of which extends to the outside of the fixture housing and is fixedly connected to the driven mechanism, which is rotatably connected to the rotary clamping mechanism.
[0007] Furthermore, the driven mechanism includes a pneumatic part and a driving part. The driving part is fixedly connected to the output end of the driving motor and fixedly connected to the rotary clamping mechanism. The pneumatic part is rotatably connected to the rotary clamping mechanism.
[0008] Furthermore, the drive unit includes a first drive disk, a second drive disk, and a transmission belt. The first drive disk is fixedly connected to the drive motor, the second drive disk is located on the pneumatic unit and fixedly connected to the pneumatic unit, and the transmission belt is sleeved on the first drive disk and the second drive disk to drive the second drive disk to rotate.
[0009] Furthermore, the rotary clamping mechanism includes a rotary shaft, a rotary housing, and a clamping member. The rotary housing is located inside the fixture housing and is connected to the clamping member through the pneumatic part. The clamping member is hinged to the pneumatic part. The rotary shaft passes through the second drive disk from the outside of the fixture housing to one side of the rotary housing, and the rotary shaft is fixedly connected to the rotary housing.
[0010] Furthermore, the pneumatic unit includes a pneumatic housing, a cylinder, a piston rod, and a solenoid valve. The pneumatic housing is located inside the rotating housing, and the cylinder and piston rod are disposed inside the pneumatic housing. One end of the piston rod is hinged to the clamping member, and the solenoid valve is located on one side of the pneumatic housing for controlling the airflow direction.
[0011] Compared with existing technologies, the beneficial effects of this utility model patent are as follows: This utility model patent, through the integrated driving capability of the fixture itself, eliminates the tedious process of frequent disassembly, repositioning, and clamping of workpieces when machining different surfaces. The rotary clamping mechanism allows the workpiece to be directly rotated and positioned at multiple angles and positions within the fixture, reducing machine tool downtime and improving the effective utilization rate of the machine tool. The rotary clamping mechanism endows the workpiece with the ability to rotate controllably during machining, enabling continuous milling of cylindrical surfaces, end faces, circumferentially distributed holes, grooves, or complex curved surface contours in a single clamping operation. This expands the machining range that can be completed in a single clamping operation, avoids the accumulation of errors caused by multiple clamping operations, and simplifies the process for workpieces requiring multi-face machining. Process planning reduces the number of steps and improves the continuity and smoothness of the overall production process. Since the workpiece only needs to be clamped and positioned once during the entire processing, the machining surface is changed by the internal rotating mechanism of the fixture, eliminating the repeated positioning error that is inevitably introduced by multiple workpiece disassembly and assembly. This improves the dimensional accuracy and geometric tolerance consistency of the workpiece. The fixture shell, as the foundation of the overall structure, provides a stable support platform. The drive motor is built-in and its output end is directly connected to the driven mechanism and the rotating clamping mechanism, forming a compact and rigid power and support chain. This reduces the elastic deformation and clearance of the transmission links and enhances the overall rigidity and vibration resistance of the workpiece during the processing. Especially during heavy cutting or finishing, it suppresses chatter and improves the surface finish. Attached Figure Description
[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0013] Figure 1 This is a schematic diagram of the structure of the milling machine tooling fixture provided in the embodiment of this utility model;
[0014] Figure 2 A cross-sectional view of the pneumatic component in the milling machine tooling fixture provided in this embodiment of the utility model.
[0015] In the figure: 1. Fixture housing; 2. Drive motor; 3. Driven mechanism; 310. Pneumatic part; 3101. Pneumatic housing; 3102. Cylinder; 3103. Piston rod; 3104. Solenoid valve; 320. Drive part; 3201. First drive plate; 3202. Second drive plate; 3203. Transmission belt; 4. Rotary clamping mechanism; 401. Rotary shaft; 402. Rotary housing; 403. Clamping component. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0018] See Figure 1-2 As shown, this embodiment provides a milling machine tooling fixture, including: a fixture housing, a drive motor is disposed inside the fixture housing, the output end of the drive motor extends to the outside of the fixture housing and is fixedly connected to a driven mechanism, and the driven mechanism is rotatably connected to a rotary clamping mechanism.
[0019] In some embodiments of this application, the driven mechanism includes a pneumatic part and a driving part. The driving part is fixedly connected to the output end of the drive motor, the driving part is fixedly connected to the rotary clamping mechanism, and the pneumatic part is rotatably connected to the rotary clamping mechanism.
[0020] Specifically, the drive motor controls the rotary clamping mechanism to achieve 360° rotation through the driven mechanism. When the drive motor rotates, it drives the drive unit to rotate, which in turn drives the pneumatic unit to rotate.
[0021] Understandably, the drive unit, acting as the main torque transmission channel, ensures that the rotational power output from the drive motor is efficiently, directly, and without loss to the rotary clamping mechanism through a rigid fixed connection (one end connected to the motor output, the other to the rotary clamping mechanism). This eliminates power lag, slow response, and transmission errors caused by too many intermediate links or unreliable connections. The pneumatic unit provides crucial auxiliary support and motion guidance for the rotary clamping mechanism. During rotation, especially during start-up, stopping, speed changes, or when subjected to asymmetrical loads generated by the workpiece / cutting, the pneumatic unit suppresses the sway, vibration, or offset of the rotating shaft, improving the smoothness of the rotation process.
[0022] In some embodiments of this application, the drive unit includes a first drive disk, a second drive disk, and a transmission belt. The first drive disk is fixedly connected to a drive motor, the second drive disk is located on and fixedly connected to the pneumatic unit, and the transmission belt is sleeved on the first drive disk and the second drive disk to drive the second drive disk to rotate.
[0023] In some embodiments of this application, the rotary clamping mechanism includes a rotary shaft, a rotary housing, and a clamping member. The rotary housing is located inside the fixture housing and is connected to the clamping member via a pneumatic part. The clamping member is hinged to the pneumatic part. The rotary shaft extends from the outside of the fixture housing through the second drive disk to one side of the rotary housing, and the rotary shaft is fixedly connected to the rotary housing.
[0024] Specifically, when the drive motor rotates, it drives the first drive disk to rotate, which in turn drives the second drive disk to rotate via the transmission belt. The second drive disk is fixedly connected to the rotating shaft, which in turn drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the rotating shell to rotate, thereby realizing the rotation of the clamping component.
[0025] In some embodiments of this application, the pneumatic unit includes a pneumatic housing, a cylinder, a piston rod, and a solenoid valve. The pneumatic housing is located inside the rotating housing, and the cylinder and piston rod are disposed inside the pneumatic housing. One end of the piston rod is hinged to the clamping member, and the solenoid valve is located on one side of the pneumatic housing for controlling the direction of airflow.
[0026] Specifically, the solenoid valve controls the direction of airflow, which in turn pushes the piston rod located in the cylinder to achieve the upward or downward movement of the piston rod. The piston rod is hinged to a clamping component, which in turn drives the clamping component to clamp or release.
[0027] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A milling machine tooling fixture, characterized in that, include: A clamp housing, wherein a drive motor is disposed inside the clamp housing, the output end of the drive motor extends to the outside of the clamp housing and is fixedly connected to a driven mechanism, and the driven mechanism is rotatably connected to a rotary clamping mechanism; The driven mechanism includes a pneumatic part and a driving part. The driving part is fixedly connected to the output end of the driving motor and fixedly connected to the rotary clamping mechanism. The pneumatic part is rotatably connected to the rotary clamping mechanism.
2. The milling machine tooling fixture according to claim 1, characterized in that, The drive unit includes a first drive disk, a second drive disk, and a transmission belt. The first drive disk is fixedly connected to the drive motor. The second drive disk is located on the pneumatic unit and fixedly connected to the pneumatic unit. The transmission belt is sleeved on the first drive disk and the second drive disk and is used to drive the second drive disk to rotate.
3. The milling machine tooling fixture according to claim 2, characterized in that, The rotary clamping mechanism includes a rotary shaft, a rotary housing, and a clamping member. The rotary housing is located inside the fixture housing and is connected to the clamping member through the pneumatic part. The clamping member is hinged to the pneumatic part. The rotary shaft passes through the second drive disk from the outside of the fixture housing to one side of the rotary housing, and the rotary shaft is fixedly connected to the rotary housing.
4. The milling machine tooling fixture according to claim 3, characterized in that, The pneumatic unit includes a pneumatic housing, a cylinder, a piston rod, and a solenoid valve. The pneumatic housing is located inside the rotating housing. The cylinder and piston rod are disposed inside the pneumatic housing. One end of the piston rod is hinged to the clamping member. The solenoid valve is located on one side of the pneumatic housing and is used to control the direction of airflow.