CN206263640U - A kind of fraise jig - Google Patents

Abstract

The utility model discloses a milling machine fixture, which belongs to the technical field of mechanical fixtures. The milling machine fixture comprises a fixture body, a fixed V-shaped block, a movable V-shaped block, a guide rod, a dust cover, positioning cylindrical pins a and b, and an inner hexagon Screws and locking bolts, the fixed V-shaped block is installed on the left side of the clamp body, positioned by the positioning cylindrical pin b, and the tight installation of the fixed V-shaped block and the clamp body is realized through the locking bolts; the movable V-shaped block is installed There is a drawer-shaped body on the right side of the clamp body; the guide rod passes through the threaded hole on the right side of the clamp body through threaded connection, and it plays the role of pushing the movable V-shaped block by arc docking with the movable V-shaped block; the dust-proof The cover is positioned on the clamp body through the positioning cylindrical pin a, and the tight installation of the dustproof cover and the clamp body is completed through the hexagon socket head screw. The utility model has the advantages of novel structure, high safety performance and convenient operation, and at the same time saves clamping time, shortens the processing cycle of parts, reduces costs and improves labor efficiency.

Description

A milling machine fixture

technical field

The utility model relates to the technical field of mechanical tooling, in particular to a milling machine fixture used for milling the ends of shaft parts.

Background technique

The fixture is the connection device between the machine tool and the parts, and it is a necessary device to facilitate the feature processing of the parts. The quality of the fixture directly affects the shape accuracy, position accuracy and dimensional accuracy of the machined surface of the part. At present, most of the domestically processed shaft parts are clamped by chucks, which takes a long time to clamp, difficult to disassemble, and low production efficiency. The function of the milling machine fixture is to position and clamp the workpiece. Positioning is the process of the workpiece occupying the correct position on the machine tool. Clamping is the mechanical operation that keeps the positioning position unchanged during the machining process. Therefore, the milling machine fixture is good. The bad thing is whether the positioning and clamping are reasonable and convenient.

Utility model content

Aiming at the above-mentioned defects of the prior art, the utility model provides a milling machine clamp, which solves the problems of the narrow practical range of the milling machine clamp in the prior art, inconvenient disassembly, processing errors caused by unreliable positioning, etc., and provides a set with Double V-shaped block automatic centering and positioning device, and through the guide rod to give the movable V-shaped block force, so as to clamp the processed parts, not only improve the overall strength of the processed parts during the processing process, clamping is not easy to produce deformation, processing Stable and easy to disassemble.

In order to achieve the above object, the utility model provides the following technical solutions:

A fixture for a milling machine, including a positioning cylinder. The left and right ends of the positioning cylinder are provided with fixed V-shaped blocks and movable V-shaped blocks for clamping the processed parts. The upper surface of the positioning cylinder needs to be in direct contact with the processed parts. Therefore, high processing precision is required.

Further, the positioning cylinder platform and the clamp body itself are set as an integrated structure by casting, which is convenient for placing the workpiece, and does not need to reset the positioning surface;

Further, one side of the clamp body is provided with a drawer-shaped rectangular slot for placing the movable V-shaped block;

Further, the clamping mechanism of the milling machine fixture provides the movable V-shaped block of the power device and the guide rod connected with the power device equipped with the power device;

working principle:

First, according to the diameter of the shaft parts to be processed, set the fixed V-shaped block and the movable V-shaped block. Of course, the range of the spread angle of the two V-shaped blocks should be designed to cover most of the shaft parts; place the processed parts in the positioning Cylindrical platform, through the implementation of the guide rod of the power device to push the movable V-shaped block of the power device to clamp the processed parts, and the transmission of force is carried out through the arc contact surface of the two devices.

The utility model relates to a clamp for a milling machine, which can quickly locate and clamp the processed parts when milling the ends of shaft parts. It has the following advantages:

1. Accurate and fast positioning: automatic centering and positioning through two V-shaped blocks, fast and accurate positioning;

2. Fast clamping: through the lever theorem, a slight force can be applied to allow the guide rod to transmit force, thereby quickly clamping the workpiece;

3. Good versatility: the utility model is suitable for processing the end faces of shaft parts;

4. Good self-locking performance: the utility model realizes the self-locking function by connecting the clamp body and the guide rod with a triangular thread, thereby ensuring the safety of processing and improving the yield rate.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

The technical solution and other beneficial effects of the utility model will be apparent through the detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of a kind of milling machine fixture of the present utility model;

Fig. 2 is a schematic cross-sectional view of a milling machine fixture of the present invention;

Fig. 3 is a top view schematic diagram of a milling machine fixture of the present invention;

Fig. 4 is a plan view of a milling machine clamp of the present invention with the dust cover removed;

Among them: 1. Clamp body; 2. Fixed V-shaped block; 3. Movable V-shaped block; 4. Dust cover; 5. Positioning cylindrical pin a; 9. Positioning cylindrical pin b; 10. Lever (processed parts).

detailed description

In order to further illustrate the technical means adopted by the utility model and its effects, a detailed description will be given below in conjunction with preferred embodiments of the utility model and accompanying drawings.

Please refer to Fig. 1 to Fig. 4, the following is the specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is described in detail and clearly. Obviously, the description of the embodiment is only a small part of the utility model , through this embodiment, it can be extended to a large number of shaft parts that can use this utility model. Other skilled persons who use the embodiments included in the utility model without creating an inventive step all belong to the category protected by the utility model.

As shown in the schematic diagrams of Figures 1, 2, and 3: a new type of milling machine clamp provided by the utility model includes a clamp body 1 fixed on the milling machine workbench, and the clamp body 1 is fixed by four hexagon socket head screws 6 that are front and rear symmetrical. On the milling machine table, the clamp body 1 on the milling machine fixture is provided with symmetrical threaded holes and pin holes, and the milling machine fixture also includes a fixed V-shaped block 2 on the left side of the clamp body 1, and the fixed V-shaped block 2 is provided with front and rear symmetrical threaded holes and pin holes, and is positioned on the left side of the clamp body 1 with two positioning cylindrical pins b9, and the tight fixation between the fixed V-shaped block 2 and the clamp body 1 is completed by a pair of locking bolts 8.

In the utility model, the milling machine fixture is also provided with a cylindrical positioning table for accurate positioning of shaft parts on the milling machine. Since the upper surface of the cylindrical positioning table is in direct contact with the processed parts, the upper surface of the positioning table requires The processing accuracy requirement of the milling machine is high. The milling machine fixture includes a movable V-shaped block 3 located on the right side of the clamp body 1. Through the drawer type body placed on the clamp body 1, the left and right along the guide rail mechanism is moved and transformed, and the V-shaped block 1 is fixed. A clamping installation of the lever 10 (machined part) is carried out.

In the utility model, as shown in Figure 4, the clamping mechanism includes a movable V-shaped block 3 of the power device and a power device connecting guide rod 7 equipped with power device. The movable V-shaped block 3 of the groove is connected in an arc shape. The advantage of the curved butt joint is that the contact area between the movable V-shaped block 3 and the guide rod 7 becomes larger, and the distribution unit pressure of the two contact surfaces is small when the parts are processed or the parts are locked. The wear and tear of the device increases the life of the device. A section of the guide rod 7 is threaded, and is connected with the threaded hole on the right side of the clamp body 1 to ensure that when the guide rod 7 pushes the movable V-shaped block 3, no retreat will occur, so as to realize self-locking and ensure processing time precision requirements. One end of the guide rod 7 is a device with a spherical hole, which is used for the penetration of the external rod, and implements the circumferential rotation of the guide rod 7, which is convenient for the worker to implement the operation of the force of the clamping mechanism.

In the utility model, the milling machine fixture also includes a dustproof cover 4, and the dustproof cover 4 is provided with four threaded holes and two pin holes symmetrically front and back, and is positioned in the middle of the clamp body 1 by two positioning cylindrical pins a. Rectangular platform, the dust cover 4 and the clamp body 1 are tightly fixed by the hexagon socket head screw 6.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the protection scope of the claims.

Claims (3)

1. A milling machine clamp, is characterized in that, comprises: clamp body (1), fixed V-shaped block (2), movable V-shaped block (3), dust cover (4), positioning cylindrical pin a (5), Hexagon socket head screw (6), guide rod (7), locking bolt (8) and positioning cylindrical pin b (9), the fixed V-shaped block (2) is installed on the left side of the clamp body (1), through the positioning cylindrical The pin b (9) is positioned, the locking bolt (8) realizes the tight installation of the fixed V-shaped block (2) and the clamp body (1), and the movable V-shaped block (3) is installed on the clamp body (1) The right side has a drawer body, the guide rod (7) passes through the threaded hole on the right side of the clamp body through threaded connection, and the guide rod (7) is connected with the movable V-shaped block (3) in a circular arc to play a role in pushing The function of the V-shaped block (3), the dust cover (4) is positioned on the clamp body (1) through the positioning cylindrical pin a (5), and the connection between the dust cover (4) and the clamp is completed by the hexagon socket head screw (6). Concrete (1) tight fit. 2. A milling machine clamp according to claim 1, characterized in that, a raised cylindrical positioning platform is provided in the middle of the clamp body (1). 3. A milling machine clamp according to claim 1, characterized in that, the clamp body (1) is provided with bolts for fixing the machine tool.