A CNC lathe with automatic loading and unloading

Abstract

The utility model discloses a CNC lathe with automatic loading and unloading, and relates to the technical field of CNC machine tools. The CNC lathe comprises a lathe, a three-axis moving mechanism, a clamping mechanism and a material table; a frame is provided on the lathe; the material table is arranged on the frame, and is used to place the material to be processed or processed; the three-axis moving mechanism is installed above the frame, and the three-axis moving mechanism comprises an X-axis linear module, a Y-axis linear module and a Z-axis linear module; the clamping mechanism comprises a first clamping piece, a second clamping piece, a base and a rotation switching device, the first clamping piece and the second clamping piece are installed on the base, and the angle between the first clamping piece and the second clamping piece is 90 degrees, the first clamping piece is provided with a pushing piece, the second clamping piece is provided with a vacuum suction cup, the base is installed on the rotation switching device, the rotation switching device is installed at the lower end of the Z-axis linear module, and is used to rotate and switch the positions of the first clamping piece and the second clamping piece. The CNC lathe can realize automatic loading and unloading, and improve production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control lathe with automatic loading and unloading. Background Art

[0002] In the field of mechanical processing, CNC lathe is a widely used equipment. It is mainly used for cutting shaft parts or disc parts, and can perform grooving, drilling and other operations. Traditional CNC lathes mostly rely on workers to load and unload workpieces. Manual loading and unloading results in high workload and low workpiece production efficiency. With the expansion of market demand, manual loading and unloading can no longer meet the requirements of mass production of products. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a CNC lathe with automatic loading and unloading, so as to realize automatic loading and unloading of the lathe and improve production efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A CNC lathe with automatic loading and unloading, comprising a lathe, a three-axis moving mechanism, a clamping mechanism and a material table; the lathe is provided with a frame; the material table is arranged on the frame, and is used to place materials to be processed or processed; the three-axis moving mechanism is installed above the frame, and the three-axis moving mechanism comprises an X-axis linear module, a Y-axis linear module and a Z-axis linear module; the clamping mechanism comprises a first clamping piece, a second clamping piece, a base and a rotation switching device, the first clamping piece and the second clamping piece are installed on the base, and the angle between the first clamping piece and the second clamping piece is 90 degrees, the first clamping piece is provided with a pushing piece, the second clamping piece is provided with a vacuum suction cup, the base is installed on the rotation switching device, the rotation switching device is installed at the lower end of the Z-axis linear module, and is used to rotationally switch the positions of the first clamping piece and the second clamping piece.

[0006] In some embodiments, the first clamping member and the second clamping member are four-claw cylinders, and the rotary switching device is a rotary cylinder.

[0007] In some embodiments, the pusher includes a fixing ring, a guide bolt, a pusher sheet and a spring. The fixing ring is coaxially fixed to the side wall of the first clamping member. A plurality of guide bolts are provided. The plurality of guide bolts are arranged at intervals along the circumference of the fixing ring, and the guide bolts vertically pass through the fixing ring and are threadedly connected to the fixing ring. The pusher sheet is slidably connected to the plurality of guide bolts. The spring is sleeved on the guide bolt, and one end of the spring is fixedly connected to the fixing ring, and the other end is fixedly connected to the pusher sheet. In at least one embodiment, the pusher sheet includes an integrally arranged center sheet and a plurality of connecting sheets. The center sheet is arranged at the center of the clamping jaws of the first clamping member, and the plurality of connecting sheets are radially distributed between the clamping jaws of the first clamping member.

[0008] Compared with the prior art, the present invention achieves at least the following beneficial effects:

[0009] (1) The clamping mechanism of the utility model can realize left-right movement through the X-axis linear module of the three-axis moving mechanism, can realize front-back movement through the Y-axis linear module, can realize up-and-down movement through the Z-axis linear module, and place the workpiece to be processed on the material table. When loading on the lathe: the clamping mechanism moves to the top of the material table, and the first clamping member is rotated to be perpendicular to the material table through the rotary switching device, and the first clamping member clamps the workpiece to be processed, and the first clamping member is rotated to be parallel to the main shaft of the lathe through the rotary switching device, and the first clamping member moves the clamped workpiece to the main shaft for loading, and the main shaft realizes the processing of the workpiece by cooperating with the tool holder; when unloading on the lathe: the clamping mechanism moves to the main shaft, and the first clamping member clamps the processed workpiece and moves it to the top of the material table, and the first clamping member is rotated to be perpendicular to the material table through the rotary switching device, so that the processed workpiece is placed on the material table, and the above operation can be repeated to realize automatic loading and unloading;

[0010] (2) The first clamping member of the utility model is provided with a pushing member. When the first clamping member unloads the clamped material, the pushing member can assist in pushing the material out, thereby improving the material unloading efficiency.

[0011] (3) The second clamping piece of the utility model is provided with a vacuum suction cup. When the workpiece on the main shaft cannot be clamped and removed by the first clamping piece, the second clamping piece is switched by a rotating switching device. The vacuum suction cup on the second clamping piece can generate negative pressure so as to be firmly adsorbed on the end face of the workpiece. The claws of the second clamping piece are clamped on the side wall of the workpiece. The vacuum suction cup can assist the second clamping piece to suck out the workpiece that is difficult to remove, thereby avoiding affecting the processing progress of the lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 It is a front view of an embodiment of the utility model;

[0015] Figure 3 It is a structural schematic diagram of a three-axis moving mechanism of an embodiment of the utility model;

[0016] Figure 4 This is a schematic structural diagram of the clamping mechanism of an embodiment of the utility model (the spring is not shown).

[0017] The numbers in the figure are: 1, lathe; 11, spindle; 12, tool holder; 2, three-axis moving mechanism; 21, X-axis linear module; 211, X-axis mold base; 212, X-axis moving base; 213, first servo motor; 22, Y-axis linear module; 221, Y-axis mold base; 222, Y-axis moving base; 223, second servo motor; 23, Z-axis linear module; 231, Z-axis mold base; 232, Z-axis connecting base; 233, third servo motor; 3, clamping mechanism ; 31. First clamping piece; 32. Second clamping piece; 33. Base; 34. Rotary switching device; 4. Material table; 5. Frame; 6. Pushing piece; 61. Fixed ring; 62. Guide bolt; 63. Pushing piece; 631. Center piece; 632. Connecting piece; 7. Vacuum suction cup; 8. First slide rail; 9. First rack; 10. Second slide rail; 20. Second rack; 30. Third slide rail; 40. Small slot photoelectric sensor; 50. Induction sheet; 60. Support frame. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or it can include the first and second features not being in direct contact but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] like Figures 1 to 4As shown, the automatic loading and unloading CNC lathe of this embodiment includes a lathe 1, a three-axis moving mechanism 2, a material clamping mechanism 3 and a material table 4; a frame 5 is provided on the lathe 1, and the lathe 1 includes a spindle 11 and a tool rack 12, the spindle 11 is used to drive the material to rotate and provide rotational movement during the cutting process, and the tool rack 12 is used to install and adjust the turning tool; the material table 4 is arranged on the frame 5 and located above the lathe 1, and is used to place the material to be processed or processed; the three-axis moving mechanism 2 is installed above the frame 5, and the three-axis moving mechanism 2 includes an X-axis linear module 21, a Y-axis linear module 22 and a Z-axis linear module Axis linear module 23; the clamping mechanism 3 includes a first clamping member 31, a second clamping member 32, a base 33 and a rotation switching device 34, the first clamping member 31 and the second clamping member 32 are mounted on the base 33, and the angle between the first clamping member 31 and the second clamping member 32 is 90 degrees, the first clamping member 31 is provided with a pushing member 6, the second clamping member 32 is provided with a vacuum suction cup 7, the base 33 is mounted on the rotation switching device 34, and the rotation switching device 34 is mounted on the lower end of the Z-axis linear module 23, which is used for rotationally switching the positions of the first clamping member 31 and the second clamping member 32.

[0021] like Figure 4 As shown, optionally, the first clamping member 31 and the second clamping member 32 are four-claw cylinders, and the rotary switching device 34 is a rotary cylinder. Further, the pusher 6 includes a fixed ring 61, a guide bolt 62, a pusher sheet 63 and a spring. The fixed ring 61 is coaxially fixed to the side wall of the first clamping member 31. A plurality of guide bolts 62 are provided. The plurality of guide bolts 62 are arranged at intervals along the circumference of the fixed ring 61, and the guide bolts 62 vertically pass through the fixed ring 61 and are threadedly connected to the fixed ring 61. The pusher sheet 63 is slidably connected to the plurality of guide bolts 62. The spring is sleeved on the guide bolt 62, and one end of the spring is fixedly connected to the fixed ring 61, and the other end is fixedly connected to the pusher sheet 63. Further, the pusher sheet 63 includes an integrally arranged center sheet 631 and a plurality of connecting sheets 632. The center sheet 631 is arranged at the center of the clamping jaws of the first clamping member 31, and the plurality of connecting sheets 632 are radially distributed between the clamping jaws of the first clamping member 31. When the first clamping member 31 clamps the material, the jaws clamp the side wall of the material, the material presses against the pushing piece 63, the pushing piece 63 slides along the guide bolt 62, and the spring is compressed; when the first clamping member 31 removes the clamped material, the jaws release the material, and the pushing piece 63 can push the material on the first clamping member 31 out due to the elastic force of the spring.

[0022] like Figure 3As shown, optionally, the X-axis linear module 21 includes an X-axis mold base 211, an X-axis movable base 212 and a first servo motor 213, the X-axis mold base 211 is installed on the top of the frame 5, the X-axis mold base 211 is provided with a first slide rail 8 and a first rack 9, the X-axis movable base 212 is fixedly connected to the slider of the first slide rail 8, the first servo motor 213 is installed on the X-axis movable base 212, and the output end of the first servo motor 213 is provided with a gear meshing with the first rack 9.

[0023] The Y-axis linear module 22 includes a Y-axis mold base 221, a Y-axis moving base 222 and a second servo motor 223. The Y-axis mold base 221 is installed on the X-axis moving base 212. The Y-axis mold base 221 is provided with a second slide rail 10 and a second rack 20. The Y-axis moving base 222 is fixedly connected to the slider of the second slide rail 10. The second servo motor 223 is installed on the Y-axis moving base 222, and the output end of the second servo motor 223 is provided with a gear meshing with the second rack 20.

[0024] The Z-axis linear module 23 includes a Z-axis mold base 231, a Z-axis connecting base 232 and a third servo motor 233. The Z-axis connecting base 232 is installed on the Y-axis moving base 222. The Z-axis mold base 231 is provided with a third slide rail 30 and a third rack. The slider of the third slide rail 30 is fixedly connected to the Z-axis connecting base 232. The third servo motor 233 is installed on the Z-axis connecting base 232, and the output end of the third servo motor 233 is provided with a gear meshing with the third rack.

[0025] Furthermore, small slot-shaped photoelectric sensors 40 are provided on the X-axis mold base 211, the Y-axis mold base 221 and the Z-axis connecting base 232, wherein the small slot-shaped photoelectric sensors 40 of the X-axis mold base 211 and the Y-axis mold base 221 are installed at the stroke limit of the mold base, and the X-axis moving base 212, the Y-axis moving base 222 and the Z-axis mold base 231 are provided with sensing sheets 50 compatible with the small slot-shaped photoelectric sensors 40, wherein the sensing sheet 50 of the Z-axis mold base 231 is installed at the stroke limit of the mold base, and the sensing sheet 50 cooperates with the small slot-shaped photoelectric sensors 40 to detect whether the X-axis moving base 212, the Y-axis moving base 222 and the Z-axis mold base 231 have passed the stroke limit point. When the small slot-shaped photoelectric sensors 40 detect that the X-axis moving base 212, the Y-axis moving base 222 and the Z-axis mold base 231 have reached the stroke limit, the control system of the three-axis moving mechanism 2 controls the corresponding modules to stop working.

[0026] like Figure 2 As shown, a support frame 60 is fixedly connected to one side of the lathe 1 , and the top of the support frame 60 is fixedly connected to the X-axis linear module 21 .

[0027] The method of using the automatic loading and unloading CNC lathe is as follows:

[0028] The shaft and disc materials to be processed are placed on the material table 4. The clamping mechanism 3 can be moved left and right through the X-axis linear module 21 of the three-axis moving mechanism 2, can be moved forward and backward through the Y-axis linear module 22, and can be moved up and down through the Z-axis linear module 23. When the lathe 1 is loaded with materials: the clamping mechanism 3 moves to the top of the material table 4, and the first clamping member 31 is rotated to be perpendicular to the material table 4 through the rotation switching device 34. The first clamping member 31 clamps the material to be processed, and the first clamping member is rotated through the rotation switching device 34. 31 is parallel to the main shaft 11, the first clamping member 31 moves the clamped workpiece to the main shaft 11 of the lathe 1 for loading, and the main shaft 11 realizes the processing of the workpiece by cooperating with the tool holder 12; when the lathe 1 is unloading: the clamping mechanism 3 moves to the main shaft 11, the first clamping member 31 clamps the processed workpiece and moves it above the material table 4, and the first clamping member 31 is rotated by the rotation switching device 34 to make it perpendicular to the material table 4, thereby placing the processed workpiece on the material table 4, and repeating the above operations to realize automatic loading and unloading of the lathe 1.

[0029] In addition, since the second clamping member 32 is provided with a vacuum suction cup 7, when the workpiece processed on the spindle 11 cannot be clamped and removed by the first clamping member 31, for example, when the chuck of the spindle 11 clamps the workpiece too tightly, making it difficult to remove the workpiece, the second clamping member 32 is switched by the rotating switching device 34. The vacuum suction cup 7 on the second clamping member 32 can generate negative pressure so as to be firmly adsorbed on the end face of the workpiece. The claws of the second clamping member 32 are clamped on the side wall of the workpiece, and the vacuum suction cup 7 is used to assist the second clamping member 32 in taking out the workpiece, thereby avoiding affecting the processing progress of the lathe 1; the first clamping member 31 is provided with a pushing member 6. When the first clamping member 31 removes the clamped workpiece, the pushing member 6 is used to push the workpiece out.

[0030] It should be understood that all the above embodiments are illustrative rather than restrictive, and any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the conception of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A CNC lathe with automatic loading and unloading, characterized in that: It comprises a lathe (1), a three-axis moving mechanism (2), a material clamping mechanism (3) and a material table (4); The lathe (1) is provided with a frame (5); The material table (4) is arranged on the frame (5) and is used to place the materials to be processed or processed; The three-axis moving mechanism (2) is installed above the frame (5), and the three-axis moving mechanism (2) comprises an X-axis linear module (21), a Y-axis linear module (22) and a Z-axis linear module (23); The clamping mechanism (3) comprises a first clamping member (31), a second clamping member (32), a base (33) and a rotation switching device (34); the first clamping member (31) and the second clamping member (32) are mounted on the base (33), and the included angle between the first clamping member (31) and the second clamping member (32) is 90 degrees; the first clamping member (31) is provided with a pushing member (6), and the second clamping member (32) is provided with a vacuum suction cup (7); the base (33) is mounted on the rotation switching device (34), and the rotation switching device (34) is mounted at the lower end of the Z-axis linear module (23), and is used for rotationally switching the positions of the first clamping member (31) and the second clamping member (32).

2. The automatic loading and unloading CNC lathe according to claim 1 is characterized in that: The first clamping member (31) and the second clamping member (32) are four-claw cylinders, and the rotation switching device (34) is a rotary cylinder.

3. The automatic loading and unloading CNC lathe according to claim 2 is characterized in that: The pusher (6) comprises a fixing ring (61), a guide bolt (62), a pusher sheet (63) and a spring. The fixing ring (61) is coaxially fixed on the side wall of the first clamping member (31). A plurality of guide bolts (62) are provided. The plurality of guide bolts (62) are arranged at intervals along the circumference of the fixing ring (61). The guide bolts (62) vertically pass through the fixing ring (61) and are threadedly connected to the fixing ring (61). The pusher sheet (63) is slidably connected to the plurality of guide bolts (62). The spring is sleeved on the guide bolt (62), and one end of the spring is fixedly connected to the fixing ring (61), and the other end is fixedly connected to the pusher sheet (63).

4. The automatic loading and unloading CNC lathe according to claim 3 is characterized in that: The pushing piece (63) comprises an integrally arranged central piece (631) and a plurality of connecting pieces (632); the central piece (631) is arranged at the center of the clamping jaws of the first clamping piece (31); and the plurality of connecting pieces (632) are radially distributed between the clamping jaws of the first clamping piece (31).

5. The automatic loading and unloading CNC lathe according to claim 1 is characterized in that: The X-axis linear module (21) comprises an X-axis mold base (211), an X-axis movable base (212) and a first servo motor (213); the X-axis mold base (211) is mounted on the top of the frame (5); a first slide rail (8) and a first rack (9) are provided on the X-axis mold base (211); the X-axis movable base (212) is fixedly connected to a slider of the first slide rail (8); the first servo motor (213) is mounted on the X-axis movable base (212); and an output end of the first servo motor (213) is provided with a gear meshing with the first rack (9).

6. The automatic loading and unloading CNC lathe according to claim 5, characterized in that: The Y-axis linear module (22) comprises a Y-axis mold base (221), a Y-axis moving base (222) and a second servo motor (223); the Y-axis mold base (221) is mounted on the X-axis moving base (212); a second slide rail (10) and a second rack (20) are provided on the Y-axis mold base (221); the Y-axis moving base (222) is fixedly connected to a slider of the second slide rail (10); the second servo motor (223) is mounted on the Y-axis moving base (222); and an output end of the second servo motor (223) is provided with a gear meshing with the second rack (20).

7. The automatic loading and unloading CNC lathe according to claim 6, characterized in that: The Z-axis linear module (23) comprises a Z-axis mold base (231), a Z-axis connecting base (232) and a third servo motor (233); the Z-axis connecting base (232) is mounted on the Y-axis moving base (222); a third slide rail (30) and a third rack are provided on the Z-axis mold base (231); a slider of the third slide rail (30) is fixedly connected to the Z-axis connecting base (232); the third servo motor (233) is mounted on the Z-axis connecting base (232); and an output end of the third servo motor (233) is provided with a gear meshing with the third rack.

8. The automatic loading and unloading CNC lathe according to claim 7, characterized in that: The X-axis mold base (211), the Y-axis mold base (221) and the Z-axis connecting base (232) are all provided with a small slot-shaped photoelectric sensor (40); the X-axis moving base (212), the Y-axis moving base (222) and the Z-axis mold base (231) are all provided with a sensing sheet (50) adapted to the small slot-shaped photoelectric sensor (40); the sensing sheet (50) cooperates with the small slot-shaped photoelectric sensor (40) to detect whether the X-axis moving base (212), the Y-axis moving base (222) and the Z-axis mold base (231) have passed through a travel limit point.

9. The automatic loading and unloading CNC lathe according to claim 1, characterized in that: A support frame (60) is fixedly connected to one side of the lathe (1), and the top of the support frame (60) is fixedly connected to the X-axis linear module (21).

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