CN107009161A - A kind of fixture of fast turning circular arc conical surface part - Google Patents

Abstract

The invention relates to a fixture for quickly turning arc-shaped conical surface parts, comprising a fixed plate and a fixed table, the fixed table is arranged at one end of the fixed plate, the other end of the fixed plate is provided with a connecting column, and the end surface of the fixed table is provided with a groove , the groove is provided with a positioning step, the fixed platform is provided with a through groove, and the through groove communicates with the groove, and the fixed platform is provided with a fastener for clamping the parts in the groove; the advantage of the present invention: through the connecting column The fixed plate is fixed on the three-jaw chuck of the lathe, so that the turning parts fixed on the fixed table can process the circular arc cone surface through the most economical turning, which reduces the processing difficulty, realizes the fast turning of the parts, and the turning processing accuracy is high , the material utilization rate is high; the number of fixed tables can be set according to different production requirements, so that one turning can complete the processing of multiple parts at the same time, which further improves the processing efficiency, and the dimensional accuracy of the parts after multiple turning is easy to guarantee. Good size consistency.

Description

A Fixture for Quickly Turning Circular Cone Parts

technical field

The invention relates to a fixture for quickly turning arc-shaped conical surface parts.

Background technique

Turning is the most commonly used processing method for metal parts machining, and it is also the most economical. Figure 1 is a special shape part, which has two arc-shaped conical surfaces R1 and R2, and the other surfaces are square, which cannot be directly clamped on a lathe. On the three-jaw chuck on the upper part, turning can not be used directly. Milling technology is used to complete the processing of the arc cone surface of the part. The processing efficiency is low, and the processing accuracy is not high during milling, and the material utilization rate is low. Using grinding The processing method is to complete the processing of the arc-cone surface of the part, and it is necessary to use a grinding wheel that matches the arc-cone surface of the part. The processing is difficult and the processing efficiency is not high, and only one can be processed at a time.

Contents of the invention

The technical problem to be solved by the present invention is to provide a fixture for quickly turning arc-cone parts, so as to solve the problem of low processing efficiency of the existing arc-cone parts.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions: a fixture for fast turning arc-cone parts, including a fixed plate and a fixed table, the fixed table is arranged at one end of the fixed plate, and the other end of the fixed plate is set There is a connecting column connected with the three-jaw chuck of the lathe, and the end surface of the fixed table is provided with a groove, and a positioning step is provided in the groove to position the parts to be turned. Communicating with the groove, the fixing table is provided with fasteners for clamping parts in the groove.

Preferably, the fixed table includes a first fixed block and a second fixed block, both of the first fixed block and the second fixed block are fixedly connected to the fixed plate, and the through groove is arranged between the first fixed block and the second fixed block , the first fixed block and the second fixed block are provided with openings, the grooves are formed between the openings, the fasteners are arranged between the first fixed block and the second fixed block, the structure is simple, and it is convenient for the parts to be turned It can be installed and disassembled, and can be used repeatedly. The through groove is arranged between the first fixed block and the second fixed block, so that the force of the first fixed block and the second fixed block to be turned is set to be equal, and the turning parts are prevented from being damaged. fall off.

Preferably, the fastener includes a bolt, the first fixing block is provided with a through hole for the bolt to pass through, and the second fixing block is provided with a threaded hole for fixing the bolt, the bolt fastening effect is good, and the clamping force can be adjusted Control can prevent loosening of fasteners during turning and improve clamping efficiency.

Preferably, there are four fixed tables, and the four fixed tables are evenly arranged on the fixed plate, which can realize the processing of four parts at the same time in one turning, the processing efficiency is high, and the dimensional accuracy of the four parts is easy to guarantee, the processed parts Good size consistency.

Preferably, the connecting column is provided with a step that makes the fixed disk close to the three-jaw chuck of the lathe, and the fixed disk can be stably fixed on the three-jaw chuck through the cooperation of the steps and the three-jaw chuck of the lathe to prevent the inclination of the fixed disk. The firmness of the connection between the connecting column and the three-jaw chuck of the lathe can be improved, the axial sliding of the connecting column can be avoided when the three-jaw chuck of the lathe is rotated, and the turning quality of parts can be improved.

In summary, the present invention has the following advantages: 1. The fixed plate is fixed on the three-jaw chuck of the lathe by the connecting column, so that the turning parts fixed on the fixed table can process the circular arc cone surface through the most economical turning, reducing the Difficulty in processing, realizing fast turning of parts, and high turning precision and high utilization rate of materials;

2. The number of fixed tables can be set according to different production needs, so that one turning can complete the processing of multiple parts at the same time, which further improves the processing efficiency, and the dimensional accuracy of the parts after multiple turnings is easy to guarantee and the dimensional consistency is good;

3. The installation and disassembly of the parts is realized by tightening and loosening the fasteners, which can realize the rapid installation and disassembly of the parts;

4. Setting positioning steps in the groove can realize the rapid positioning of the parts and ensure the quality of the parts after turning;

5. The setting of the through groove is conducive to the clamping of the part by the fixed table, and realizes the stable setting of the force applied by the fixed table to both ends of the part, preventing the part from loosening during turning.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of parts to be turned by the present invention;

Fig. 2 is a schematic structural view of a fixture for fast turning arc-cone parts of the present invention;

Fig. 3 is a schematic diagram of the structure of the fixed disc of the present invention.

detailed description

As shown in Fig. 2 and Fig. 3, a fixture for quickly turning arc-shaped conical parts includes a fixed plate 1 and a fixed table 2, the fixed table 2 is arranged on one end of the fixed plate 1, and the other end of the fixed plate 1 is provided with a The connecting column 3 connected to the three-jaw chuck of the lathe, the end surface of the fixed table 2 is provided with a groove 21, and the groove 21 is provided with a positioning step 22 for locating the part 5 to be turned, and the fixed table 2 is provided with a through hole that penetrates the fixed disk. Groove 23, and through groove 23 communicates with groove 21, is provided with the fastener 4 of clamping parts in groove 21 on the fixed table 2, and lathe three-jaw chuck clamps connecting column 3, and positioning step 22 makes to wait for turning The part is positioned in the groove 21, and then the tightening of the fastener 4 locks the part to be turned in the groove 21, and then the part is turned by the lathe. After the turning is completed, the fastener 4 can be quickly to remove the parts.

The fixed table 2 includes a first fixed block 24 and a second fixed block 25, both of the first fixed block 24 and the second fixed block 25 are fixedly connected to the fixed plate 1, and the through groove 23 is arranged on the first fixed block 24 and the second fixed block. Between the two fixed blocks 25, openings are provided on the first fixed block 24 and the second fixed block 25, the groove 21 is formed between the openings, and the fastener 4 is arranged on the first fixed block 24 and the second fixed block 25, the structure is simple, it is convenient for the installation and disassembly of the parts to be turned, and it can be used repeatedly. The active forces of the turning parts are set equally to prevent falling off during turning. The fastener 4 includes a bolt. The first fixed block 24 is provided with a through hole 26 for the bolt to pass through, and the second fixed block 25 is provided with a thread for fixing the bolt. The hole 27 has good bolt fastening effect, can adjust and control the clamping force, can prevent the loosening of the fastener during turning, and improve the clamping efficiency.

There are four fixed tables 2, and the four fixed tables 2 are evenly arranged on the fixed plate 1, which can realize the processing of four parts at the same time in one turning, the processing efficiency is high, and the dimensional accuracy of the four parts is easy to guarantee, the processed parts The size consistency is good. The connecting column 3 is provided with a step 31 that makes the fixed plate close to the three-jaw chuck of the lathe. Through the cooperation of the step and the three-jaw chuck of the lathe, the fixed plate can be fixed on the three-jaw chuck smoothly to prevent the fixed plate from being fixed. The inclination of the plate can improve the firmness of the connection between the connecting column and the three-jaw chuck of the lathe, avoid the axial sliding of the connecting column when the three-jaw chuck of the lathe rotates, and improve the turning quality of the parts. The fixed table, the fixed plate and the connecting column pass through 45 Made of steel in one piece.

When in use, install the connecting column 3 on the three-jaw chuck of the lathe, and stick to the three-jaw chuck of the lathe through the step 31 so that the fixed disk 1 can be stably fixed on the three-jaw chuck to prevent the axis of the fixed disk 1 from sliding. Then the part 5 to be turned is positioned in the groove 21 through the positioning step 22, and then the parts are clamped in the groove 21 by tightening the fastener 4, and the turning parts are installed in the groove 21 in turn using the same installation method , and then realize the rapid turning of the arc-shaped conical surface of the parts by lathe work. After the turning is completed, the parts can be quickly taken off only by unscrewing the fastener 4.

Except above-mentioned preferred embodiment, the present invention also has other embodiments, and those skilled in the art can make various changes and deformations according to the present invention, as long as they do not depart from the spirit of the present invention, all should belong to the scope defined in the appended claims of the present invention scope.

Claims (5)

1. a clamp for fast turning circular arc cone parts, is characterized in that: comprise fixed plate (1) and fixed table (2), fixed table (2) is arranged on an end of fixed plate (1), fixed plate (1) ) is provided with a connecting column (3) connected to the three-jaw chuck of the lathe, and the end surface of the fixed table (2) is provided with a groove (21), and the groove (21) is provided with a location for positioning the parts to be turned. The step (22), the fixed platform (2) is provided with a through groove (23) that runs through the fixed plate, and the through groove (23) communicates with the groove (21), and the fixed platform (2) is provided with a clamping part in the concave Fastener (4) in groove (21). 2. A fixture for quickly turning arc-shaped conical parts according to claim 1, characterized in that: the fixed table (2) includes a first fixed block (24) and a second fixed block (25), the first fixed block Both the block (24) and the second fixed block (25) are fixedly connected on the fixed plate (1), and the through groove (23) is arranged between the first fixed block (24) and the second fixed block (25), The first fixed block (24) and the second fixed block (25) are all provided with openings, and the groove (21) is formed between the openings, and the fastener (4) is arranged on the first fixed block (24) and the second fixed block (24). Between two fixed blocks (25). 3. A fixture for quickly turning arc-shaped conical parts according to claim 2, characterized in that: the fastener (4) includes a bolt, and the first fixing block (24) is provided with a through hole for the bolt to pass through. hole (26), the second fixed block (25) is provided with the threaded hole (27) of fixing bolt. 4. A fixture for quickly turning arc-shaped conical parts according to claim 2, characterized in that: there are four fixed tables (2), and the four fixed tables (2) are evenly arranged on the fixed plate (1) . 5. A clamp for fast turning arc-shaped conical parts according to claim 1, characterized in that: the connecting column (3) is provided with a step (31) for making the fixed plate close to the three-jaw chuck of the lathe.