A fixture for fast turning arc conical surface parts

Abstract

This invention relates to a fixture for rapidly turning arc-shaped conical parts, comprising a fixed plate and a fixed stage. The fixed stage is located at one end of the fixed plate, and a connecting post is provided at the other end of the fixed plate. The end face of the fixed stage has a groove, and a positioning step is provided in the groove. A through groove is provided on the fixed stage, and the through groove communicates with the groove. Fasteners for clamping the parts in the groove are provided on the fixed stage. The advantages of this invention are: the fixed plate is fixed to the lathe three-jaw chuck by the connecting post, so that the turning parts fixed on the fixed stage can be turned to process arc-shaped conical surfaces in the most economical way, reducing the machining difficulty, realizing rapid turning of parts, and achieving high turning accuracy and high material utilization; the number of fixed stages can be set according to different production needs, so that multiple parts can be processed simultaneously in one turn, further improving the machining efficiency, and the dimensional accuracy of multiple turned parts is easy to guarantee, with good dimensional consistency.

Description

Technical Field

[0001] This invention relates to a fixture for rapidly turning arc-shaped conical parts. Background Technology

[0002] Turning is the most commonly used and most economical machining method for metal parts. Figure 1 This is a special-shaped part with two circular arc conical surfaces, R1 and R2, and the remaining surfaces are square. It cannot be directly clamped on the three-jaw chuck of a lathe, so it cannot be directly machined by turning. The circular arc conical surfaces of the part are machined by milling, but the machining efficiency is low, the machining accuracy is not high, and the material utilization rate is low. The circular arc conical surfaces of the part are machined by grinding, but it requires the use of a grinding wheel that matches the circular arc conical surfaces of the part. The machining is difficult and the machining efficiency is low. Only one part can be machined at a time. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a fixture for rapidly turning arc-shaped conical parts, thereby solving the problem of low machining efficiency of existing arc-shaped conical parts.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a fixture for rapidly turning arc-shaped conical parts, comprising a fixed plate and a fixed platform, the fixed platform being disposed at one end of the fixed plate, the other end of the fixed plate being provided with a connecting post connected to a lathe three-jaw chuck, the end face of the fixed platform being provided with a groove, the groove being provided with a positioning step for positioning the part to be turned, the fixed platform being provided with a through groove penetrating the fixed plate and communicating with the groove, and the fixed platform being provided with fasteners for clamping the part in the groove.

[0005] Preferably, the fixing table includes a first fixing block and a second fixing block, both of which are fixedly connected to the fixing plate. The through groove is disposed between the first fixing block and the second fixing block. Both the first fixing block and the second fixing block have openings, and the groove is formed between the openings. Fasteners are disposed between the first fixing block and the second fixing block. The structure is simple, facilitates the installation and disassembly of the workpiece to be machined, and can be reused repeatedly. The through groove between the first fixing block and the second fixing block ensures that the force exerted by the first fixing block and the second fixing block on the workpiece to be machined is equal, preventing it from falling off during machining.

[0006] Preferably, the fastener includes a bolt, the first fixing block has a through hole for the bolt to pass through, and the second fixing block has a threaded hole for fixing the bolt. The bolt has a good tightening effect, can adjust and control the clamping force, can prevent the fastener from loosening during turning, and improves clamping efficiency.

[0007] Preferably, there are four fixed tables, which are evenly arranged on the fixed plate. This allows for the simultaneous machining of four parts in one turning operation, resulting in high machining efficiency and easy assurance of the dimensional accuracy of the four parts, as well as good dimensional consistency of the machined parts.

[0008] Preferably, the connecting column is provided with a step to make the fixed plate fit tightly against the lathe three-jaw chuck. The step cooperates with the lathe three-jaw chuck to make the fixed plate stably fixed on the three-jaw chuck, preventing the fixed plate from tilting. This can improve the firmness of the connection between the connecting column and the lathe three-jaw chuck, avoid the axial sliding of the connecting column when the lathe three-jaw chuck rotates, and improve the quality of part turning.

[0009] In summary, the advantages of this invention are: 1. By fixing the fixed plate to the lathe three-jaw chuck through the connecting column, the turning parts fixed on the fixed table can be machined into arc conical surfaces through the most economical turning process, which reduces the machining difficulty, realizes the rapid turning of parts, and has high turning accuracy and high material utilization.

[0010] 2. The number of fixed tables can be set according to different production needs, so that multiple parts can be processed at the same time in one turning operation, which further improves the processing efficiency. Moreover, the dimensional accuracy of multiple turned parts is easy to guarantee, and the dimensional consistency is good.

[0011] 3. The installation and removal of parts are achieved by tightening and loosening fasteners, enabling rapid installation and removal of parts;

[0012] 4. Setting a positioning step in the groove can enable rapid positioning of the part and ensure the quality of the part after turning;

[0013] 5. The through slot facilitates the clamping of the workpiece by the fixed table and achieves a stable setting of the force exerted by the fixed table on both ends of the workpiece, preventing the workpiece from loosening during turning. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the part to be machined according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a fixture for rapidly turning arc-shaped conical parts according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing disk of the present invention. Detailed Implementation

[0018] like Figure 2 , Figure 3As shown, a fixture for rapidly turning arc-shaped conical parts includes a fixed plate 1 and a fixed platform 2. The fixed platform 2 is located at one end of the fixed plate 1, and the other end of the fixed plate 1 is provided with a connecting post 3 connected to a lathe three-jaw chuck. The end face of the fixed platform 2 is provided with a groove 21, and a positioning step 22 is provided in the groove 21 to position the part 5 to be turned. The fixed platform 2 is provided with a through groove 23 that passes through the fixed plate and communicates with the groove 21. The fixed platform 2 is provided with a fastener 4 that clamps the part in the groove 21. The lathe three-jaw chuck clamps the connecting post 3, and the positioning step 22 positions the part to be turned in the groove 21. Then, tightening the fastener 4 locks the part to be turned in the groove 21. Then, the part is turned by the lathe. After the turning is completed, the part can be quickly removed by simply loosening the fastener 4.

[0019] The fixed platform 2 includes a first fixed block 24 and a second fixed block 25, both of which are fixedly connected to the fixed plate 1. The through groove 23 is provided between the first fixed block 24 and the second fixed block 25. Both the first fixed block 24 and the second fixed block 25 have openings, and the groove 21 is formed between the openings. The fastener 4 is provided between the first fixed block 24 and the second fixed block 25. The structure is simple, facilitates the installation and disassembly of the workpiece to be machined, and can be reused. The through groove between the first fixed block and the second fixed block ensures that the force exerted by the first fixed block and the second fixed block on the workpiece to be machined is equal, preventing it from falling off during machining. The fastener 4 includes a bolt. The first fixed block 24 has a through hole 26 for the bolt to pass through, and the second fixed block 25 has a threaded hole 27 for fixing the bolt. The bolt has a good tightening effect, can adjust and control the clamping force, can prevent the fastener from loosening during machining, and improves clamping efficiency.

[0020] There are four fixed tables 2, which are evenly arranged on the fixed plate 1. This allows for the simultaneous machining of four parts in one turn, resulting in high machining efficiency and easy assurance of the dimensional accuracy of the four parts. The finished parts have good dimensional consistency. The connecting column 3 is provided with a step 31 to make the fixed plate fit tightly against the lathe's three-jaw chuck. The step cooperates with the lathe's three-jaw chuck to ensure that the fixed plate is stably fixed on the three-jaw chuck, preventing the fixed plate from tilting. This improves the firmness of the connection between the connecting column and the lathe's three-jaw chuck, avoids axial slippage of the connecting column when the lathe's three-jaw chuck rotates, and improves the quality of part turning. The fixed tables, fixed plate, and connecting column are made of 45 steel as a single piece.

[0021] In use, the connecting column 3 is installed on the lathe three-jaw chuck, and the step 31 is used to press against the lathe three-jaw chuck so that the fixed plate 1 can be stably fixed on the three-jaw chuck to prevent the axis of the fixed plate 1 from sliding. Then, the part to be turned 5 is positioned in the groove 21 by the positioning step 22, and then the part is clamped in the groove 21 by tightening the fastener 4. The same installation method is used to install the turning parts in the groove 21 in turn. Then, the lathe is used to quickly turn the arc conical surface of the part. After turning is completed, the part can be quickly removed by simply loosening the fastener 4.

[0022] In addition to the preferred embodiments described above, there are other embodiments of the present invention. Those skilled in the art can make various changes and modifications based on the present invention, and all such changes and modifications should fall within the scope defined by the appended claims, as long as they do not depart from the spirit of the present invention.

Claims

1. A fixture for rapidly turning circular arc conical surfaces, characterized in that... The system includes a fixed plate (1) and a fixed platform (2). The fixed platform (2) is located at one end of the fixed plate (1), and the other end of the fixed plate (1) is provided with a connecting post (3) connected to the lathe three-jaw chuck. The end face of the fixed platform (2) is provided with a groove (21). The groove (21) is provided with a positioning step (22) for positioning the workpiece to be machined. The fixed platform (2) is provided with a through groove (23) that passes through the fixed plate and communicates with the groove (21). The fixed platform (2) is provided with a fastener (4) for clamping the workpiece in the groove (21). The fixed platform (2) includes a first fixing block (24) and a second fixing block (25). The first fixing block (24) and the second fixing block (25) are both fixedly connected to the fixed plate. On the fixed plate (1), the through groove (23) is provided between the first fixed block (24) and the second fixed block (25). The first fixed block (24) and the second fixed block (25) are both provided with openings, and the groove (21) is formed between the openings. The fastener (4) is provided between the first fixed block (24) and the second fixed block (25). 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 threaded hole (27) for fixing the bolt. There are four fixed platforms (2), and the four fixed platforms (2) are evenly arranged on the fixed plate (1). The connecting column (3) is provided with a step (31) to make the fixed plate fit tightly against the lathe three-jaw chuck. In use, the connecting column (3) is installed on the lathe three-jaw chuck, and the step (31) is used to press against the lathe three-jaw chuck so that the fixed plate (1) can be stably fixed on the three-jaw chuck to prevent the axis of the fixed plate (1) from sliding. Then the workpiece (5) to be turned is positioned in the groove (21) through the positioning step (22). Then the workpiece is clamped in the groove (21) by tightening the fastener (4). The same installation method is used to install the workpiece in the groove (21) in turn. Then the workpiece is quickly turned into a circular arc conical surface by working the lathe. After the turning is completed, the workpiece can be quickly removed by simply loosening the fastener (4).

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