A CNC lathe

Abstract

The invention discloses a CNC lathe, aiming to provide a CNC lathe with the advantages of being able to install tools of various specifications, convenient tool replacement during use, fast and accurate tool change, and high use efficiency. The key points of its technical solution are: it includes a machine body, a workbench arranged in the machine body and a clamping member for clamping a workpiece, a mounting plate rotatably connected to the workbench, a driving mechanism and a positioning rotating member arranged between the driving mechanism and the mounting plate, which are used to link the mounting plate to rotate and limit the angle of each rotation of the mounting plate. The driving mechanism includes a motor reducer, and the output shaft of the motor reducer is fixed to the center of the active plate. When the driving mechanism rotates one circle, it can drive the positioning rotating member and the mounting plate to rotate a certain angle to complete the replacement of the tool. In this way, the operator can replace the tool more conveniently during the processing, and the tool change is relatively fast, rapid and accurate, and the processing efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of parts processing equipment, in particular to a numerically controlled lathe. Background Art

[0002] With the rapid development of social production and science and technology, the performance and quality of mechanical products are constantly improving, and the replacement of products is also accelerating. Therefore, machine tools are not only required to have high precision and productivity, but also to be able to quickly adapt to the changes in product parts. The needs of production have led to the emergence of CNC machine tools. Lathes are machine tools that mainly use turning tools to turn rotating workpieces. Drills, reamer drills, reamers, taps, dies and knurling tools can also be used on lathes for corresponding processing.

[0003] The application of CNC technology has not only brought revolutionary changes to the traditional manufacturing industry, making manufacturing a symbol of industrialization, but also with the continuous development of CNC technology and the expansion of its application fields, it plays an increasingly important role in the development of some important industries related to national economy and people's livelihood (IT, automobiles, light industry, medical care, etc.), because the digitization of equipment required by these industries has become a major trend of modern development.

[0004] CNC lathes and turning centers are high-precision and high-efficiency automated machine tools. Equipped with a multi-station turret or a power turret, the machine tool has a wide range of processing capabilities and can process linear cylinders, oblique cylinders, arcs, and various threads, grooves, worms and other complex workpieces. It has various compensation functions such as linear interpolation and circular interpolation, and has played a good economic effect in the mass production of complex parts.

[0005] At present, the Chinese patent with the publication number CN207343798U discloses a CNC lathe convenient for processing, which has a base, a lathe control cabinet is fixed on the top of the base, and the lathe control cabinet includes a front panel, a control panel is embedded and fixed on the front panel of the lathe control cabinet, and a fixing block is fixed on the front panel of the lathe control cabinet, the fixing block is located on one side of the control panel, and an open slot is provided on the top of the fixing block, and a driving motor located in the open slot is fixed inside the fixing block, a connecting rod is fixed on the output shaft of the driving motor, and the control panel is located on the inside of the dust cover. .

[0006] Although this convenient CNC lathe can prevent dust and protect the control panel, so that the control panel can be kept clean for a long time, which is convenient for the operator to program and facilitate the processing of the CNC lathe, its tool mounting seat structure is relatively simple and can only install one type of tool. It needs to be frequently disassembled and replaced during use, which is inconvenient to use. Summary of the invention

[0007] The object of the present invention is to provide a CNC lathe which has the advantages of being able to install tools of various specifications, conveniently replacing tools during use, fast and accurate tool change, and high use efficiency.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions:

[0009] A CNC lathe comprises a machine body, a workbench arranged in the machine body and a clamping member for clamping a workpiece to be processed, and a

[0010] The mounting plate is rotatably connected to the workbench, and a plurality of tool clamps are arranged at equal distances around the center of the outer circle of the mounting plate, which are used to clamp tools of different types on the mounting plate;

[0011] A driving mechanism, arranged in the workbench, for controlling the rotation of the mounting plate to change the tool;

[0012] The positioning rotating member is arranged between the driving mechanism and the mounting disk, and is used to link the mounting disk to rotate and limit the angle of each rotation of the mounting disk; the positioning rotating member includes an active disk linked with the driving mechanism and a driven part arranged on the mounting disk.

[0013] The driving mechanism comprises a motor reducer, and the output shaft of the motor reducer is fixed to the center of the driving disk.

[0014] By adopting the above technical solution, when the tool needs to be replaced, the operator can start the drive mechanism, that is, the motor reducer, to drive the positioning rotating part to rotate, thereby linking the installation disk to rotate. Due to the setting of the positioning rotating part, each rotation cycle of the drive mechanism can only drive the installation disk to rotate a certain angle.

[0015] Since several cutting tools are arranged on the mounting plate, when the driving mechanism rotates one circle, it can drive the positioning rotating part and the mounting plate to rotate a certain angle to complete the replacement of the cutting tools. In this way, the operator can replace the cutting tools more conveniently during the processing, and the tool changing is faster, more rapid and more accurate, and the processing efficiency is high.

[0016] A rotating groove is provided on the active disk, an arc-shaped protrusion is provided on one side of the active disk, and connecting grooves for connecting the outside world with the rotating groove are provided on both sides of the arc-shaped protrusion inclined toward the rotating groove, and the two connecting grooves are symmetrically arranged;

[0017] The driven part includes a rotating shaft fixed at the center of the mounting plate, and a rotating claw is provided on the rotating shaft corresponding to the rotating groove, one side of the rotating claw is located in the rotating groove and abuts against the inner wall of the rotating groove, and the other side abuts against the outer wall of the active plate;

[0018] The rotating claw comprises two claw arms perpendicular to each other, both ends of the claw arms are rotatably connected with rotating rods, and the diameter of the rotating rod is the same as the width of the connecting groove;

[0019] By adopting the above technical solution, the active disk rotates under the action of the driving mechanism, and the rotating rod moves along the inner wall of the rotating groove. When it rotates to a certain angle, the rotating rod moves under the action of the arc-shaped protrusion, and the rotating shaft rotates 90 degrees as a whole, thereby driving the rotating disk to rotate 90 degrees, completing the replacement of the tool, which is more accurate.

[0020] It is further arranged that the clamping member comprises a three-jaw chuck and a push rod for positioning the workpiece.

[0021] By adopting the above technical solution, the three-jaw chuck can clamp the cylindrical workpiece more firmly, and the push rod can support the workpiece, reducing the shaking of the workpiece during rotation and improving the overall processing accuracy.

[0022] In summary, the present invention has the following beneficial effects:

[0023] When the driving mechanism rotates one circle, it can drive the positioning rotating part and the mounting plate to rotate a certain angle, thereby completing the replacement of the tool. In this way, the operator can replace the tool more conveniently during the processing, and the tool change is faster, more rapid and more accurate, with high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a schematic structural diagram of Example 1;

[0026] Figure 2 is a schematic diagram for showing the positioning rotating member in Example 1;

[0027] Figure 3 is a schematic structural diagram of the positioning rotating member in Example 1;

[0028] In the figure, 1. machine body; 11. workbench; 12. clamping part; 121. three-jaw chuck; 122. push rod; 2. mounting plate; 21. rotating groove; 22. arc-shaped protrusion; 23. connecting groove; 24. active plate; 3. positioning rotating part; 35. rotating shaft; 36. rotating claw; 361. claw arm; 362. rotating rod; 4. driving mechanism; 41. motor reducer; 5. tool. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] The technical solution adopted by the present invention is:

[0031] Embodiment 1, a CNC lathe, such as Figure 1As shown, it includes a body 1 in the shape of a rectangular parallelepiped as a whole, an inner cavity is opened in the body 1, a workbench 11 is arranged in the middle of the inner cavity, and clamping members 12 are arranged on the left and right sides of the workbench 11. The clamping members 12 include a three-jaw chuck 121 arranged on the left side of the workbench 11 and a push rod 122 arranged on the right side of the workbench 11. The three-jaw chuck 121 can clamp the workpiece, and then the push rod 122 can support it, and finally the workpiece is processed on the workbench 11.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, a mounting plate 2 is provided on one side of the top surface of the workbench 11, and a plurality of tool holders are provided on the mounting plate 2. The tool holders are arranged around the center of the mounting plate 2 at the outer circle of the mounting plate 2, and the tool 5 used for processing is fixed on the tool holder. The tool 5 can be replaced by rotating the mounting plate 2 to adapt to different processing requirements. A driving mechanism 4 is provided in the workbench 11 to drive the rotation of the mounting plate 2; a positioning rotating member 3 is also provided in the workbench 11, which is arranged between the driving mechanism 4 and the mounting plate 2, and is used to link the rotation of the mounting plate 2 and limit the angle of each rotation of the mounting plate 2.

[0033] like Figure 2 and Figure 3 As shown, the positioning rotating member 3 includes an active disk 24 linked to a driving mechanism 4 and a driven part arranged on the mounting disk 2. The driving mechanism 4 includes a motor reducer 41. The output shaft of the motor reducer 41 is fixed to the center of the active disk 24 and can drive the active disk 24 to rotate.

[0034] A rotating groove 21 is provided on the active disk 24 , an arc-shaped protrusion 22 is provided on one side of the active disk 24 , and connecting grooves 23 connecting the outside and the rotating groove 21 are provided on both sides of the arc-shaped protrusion 22 inclined toward the rotating groove 21 , and the two connecting grooves 23 are symmetrically arranged.

[0035] The driven part includes a rotating shaft 35 fixed at the center position of the mounting disk 2, and a rotating claw 36 is provided on the rotating shaft 35 corresponding to the rotating groove 21. One side of the rotating claw 36 is located in the rotating groove 21 and abuts against the inner side wall of the rotating groove 21, and the other side is located on the outer side wall of the active disk 24. The rotating claw 36 includes two claw arms 361 perpendicular to each other, and both ends of the claw arm 361 are rotatably connected to a rotating rod 362, and the diameter of the rotating rod 362 is the same as the width of the connecting groove 23.

[0036] In this way, the active disk 24 rotates under the action of the driving mechanism 4, and the rotating rod 362 moves in the rotating groove 21 along the inner wall of the rotating groove 21. When it rotates to a certain angle, the rotating rod 362 moves under the action of the arc-shaped protrusion 22, and the rotating shaft 35 rotates 90 degrees as a whole, thereby driving the rotating disk to rotate 90 degrees, completing the replacement of the tool 5, and the tool change is more accurate.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the invention.

Claims

1. A CNC lathe, comprising a machine body (1), a workbench (11) arranged in the machine body (1), and a clamping member (12) for clamping a workpiece, characterized in that: The machine body (1) is also provided with a mounting plate (2) which is rotatably connected to the workbench (11); a plurality of tool clamps which are equidistantly arranged around the center of the outer circle of the mounting plate (2) are provided for clamping tools (5) of different types on the mounting plate (2); a driving mechanism (4) is provided in the workbench (11) for controlling the rotation of the mounting plate (2) to replace the tool (5); a positioning rotating member (3) is provided between the driving mechanism (4) and the mounting plate (2) for linking the rotation of the mounting plate (2) and limiting the angle of each rotation of the mounting plate (2); the positioning rotating member (3) comprises an active plate (24) linked to the driving mechanism (4) and a driven part provided on the mounting plate (2); the driving mechanism (4) comprises a motor reducer (41); the output shaft of the motor reducer (41) is fixed to the center of the active plate (24); The active disk (24) is provided with a rotation groove (21), one side of the active disk (24) is provided with an arc-shaped protrusion (22), and both sides of the arc-shaped protrusion (22) are inclined toward the rotation groove (21) and provided with connecting grooves (23) for connecting the outside world with the rotation groove (21), and the two connecting grooves (23) are symmetrically arranged; The driven part comprises a rotating shaft (35) fixed at the center position of the mounting disk (2); a rotating claw (36) is provided on the rotating shaft (35) corresponding to the rotating groove (21); one side of the rotating claw (36) is located in the rotating groove (21) and abuts against the inner wall of the rotating groove (21); and the other side of the rotating claw (36) abuts against the outer wall of the driving disk (24); The rotating claw (36) comprises two claw arms (361) perpendicular to each other, and both ends of the claw arms (361) are rotatably connected to rotating rods (362); The active disk (24) rotates under the action of the driving mechanism (4), and the rotating rod (362) moves in the rotating groove (21) along the inner wall of the rotating groove (21). When the rotating rod (362) rotates to a certain angle, the rotating rod (362) moves under the action of the arc-shaped protrusion (22), and the rotating shaft (35) rotates 90 degrees as a whole, thereby driving the rotating disk to rotate 90 degrees, and completing the replacement of the tool (5).

2. A CNC lathe according to claim 1, characterized in that: The clamping member (12) comprises a three-jaw chuck (121) and a push rod (122) for positioning a workpiece.

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