A CNC machine tool for turning, grinding and milling composite processing

Abstract

The present invention relates to the field of numerical control machine tools, and in particular to a turning, grinding and milling composite machining numerical control machine tool, comprising a workbench and a composite machining unit, wherein the composite machining unit comprises a machining stabilizing component arranged on the workbench, and a composite machining component arranged on the workbench; the machining stabilizing component comprises a supporting shell arranged on the workbench, a power component arranged on the supporting shell, a movable component arranged on the supporting shell, a clamping component arranged on the movable component, and a fixing component arranged on the supporting shell; the composite machining component comprises a fuselage arranged on the workbench, an electric cylinder arranged on the workbench, a track arranged on the workbench, and a composite machining component arranged on the fuselage, wherein the stable clamping of a rod-shaped special-shaped workpiece is achieved by the cooperation of the movable component and the clamping component, so that when the device performs composite machining on the workpiece through the composite machining component, the workpiece does not move, thereby improving the machining accuracy.

Description

Technical Field

[0001] The invention relates to the field of numerical control machine tools, in particular to a turning, grinding and milling composite machining numerical control machine tool. Background Art

[0002] The CNC machine tool for turning, grinding and milling combined processing is a processing device that integrates turning, grinding and milling functions. It can complete all or most of the processing procedures in one clamping, shorten the product manufacturing process chain, reduce the production auxiliary time caused by clamping changes, reduce the manufacturing cycle and waiting time of tooling and fixtures, and improve the processing accuracy of the workpiece. Therefore, this clamping of the workpiece directly affects the processing quality of the workpiece.

[0003] In order to process workpieces of various shapes, CNC machine tools for turning, grinding and milling generally clamp the workpieces by using four-jaw chucks. However, when clamping some special-shaped workpieces, especially some rod-shaped workpieces with special-shaped ends, some jaws cannot fully fit with the workpiece, causing the workpiece to be subjected to greater force on one side. Side processing will result in loose clamping or slight movement of the workpiece as a whole, affecting the machining accuracy of the workpiece. Summary of the invention

[0004] In view of the problem that in the above-mentioned or prior art, some workpieces with special shapes are clamped, especially some rod-shaped workpieces with special ends, some jaws cannot fully fit with the workpiece, so that the workpiece is subjected to greater force on one side, and side processing will lead to loose clamping or slight movement of the workpiece as a whole, affecting the processing accuracy of the workpiece, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a CNC machine tool for combined turning, grinding and milling.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a workbench and a composite processing unit, wherein the composite processing unit comprises a processing stabilization component arranged on the workbench, and a composite processing component arranged on the workbench; the processing stabilization component comprises a supporting shell arranged on the workbench, a power component arranged on the supporting shell, a movable component arranged on the supporting shell, a clamping component arranged on the movable component, and a fixing component arranged on the supporting shell; the composite processing component comprises a fuselage arranged on the workbench, an electric cylinder arranged on the workbench, a track arranged on the workbench, and a composite processing component arranged on the fuselage; the composite processing component comprises, A connecting head on the fuselage, a drill bit arranged on the connecting head, a processing adjustment part arranged on the connecting head, and a milling cutter arranged on the processing adjustment part; the processing adjustment part includes a first movable block arranged on the connecting head, the first movable block is provided with two groups, which are respectively arranged on both sides of the drill bit, a first movable cavity arranged on the connecting head, a bidirectional threaded rod arranged on two groups of the first movable blocks, a second movable cavity arranged on the first movable block, a second movable block arranged in the second movable cavity, an adjustment threaded rod arranged in the second movable cavity, a pull rod rotatably arranged on the second movable block, a mounting plate rotatably arranged on the pull rod, and a fixed block rotatably connected to the mounting plate arranged on the first movable block.

[0007] As a preferred solution of the CNC machine tool for turning, grinding and milling composite processing of the present invention, the power component includes a servo motor arranged on the supporting shell, a connecting gear arranged at the output end of the servo motor, and a connecting sleeve arranged on the movable component to cooperate with the connecting gear; a mounting hole is arranged on the supporting shell to cooperate with the servo motor; the clamping component includes a supporting block arranged on the movable component, a sliding block arranged on the supporting block, a fixed shaft arranged on the sliding block, and a secondary clamping piece arranged on the supporting block; the secondary clamping piece includes a rotating shaft arranged on the supporting block, an adjusting wheel arranged on the rotating shaft, an adjusting rod arranged on the supporting block, a stabilizing rod arranged on the supporting block, a clamping block arranged under the adjusting rod, and a connecting block arranged on the adjusting rod; a fixing ring is arranged on the adjusting rod, the outer portion of the adjusting wheel is arranged to fit the arc surface of the adjusting rod, and the arc surface is provided with arc teeth that cooperate with the fixing ring.

[0008] As a preferred solution of the CNC machine tool for turning, grinding and milling composite processing of the present invention, the movable component includes a fixed disk arranged on the supporting shell, a rotating disk arranged on the supporting shell, a sliding groove arranged on the fixed disk to cooperate with the supporting block, an arc-shaped extrusion groove arranged on the rotating disk to cooperate with the sliding block, and a fixed threaded hole arranged on the fixed disk to cooperate with the fixing component; an abutment end to cooperate with the rotating disk is arranged on the supporting shell; the fixing component includes a connecting block arranged on the supporting shell, a fixing bolt arranged on the connecting block, and a block arranged on the connecting block; a connecting groove to cooperate with the connecting block is arranged on the supporting shell.

[0009] As a preferred solution of the CNC machine tool for combined turning, grinding and milling processing of the present invention, wherein: the mounting plate is provided with an angle line that matches the fixing block.

[0010] As a preferred solution of the CNC machine tool for turning, grinding and milling composite processing of the present invention, wherein: the second movable block is provided with an internal thread to match the bidirectional threaded rod.

[0011] As a preferred solution of the CNC machine tool for turning, grinding and milling composite processing of the present invention, wherein: a semicircular thread groove is provided on one side of the second movable block to cooperate with the adjusting thread rod.

[0012] The beneficial effects of the turning, grinding and milling composite processing CNC machine tool of the present invention are as follows: the present invention realizes stable clamping of rod-shaped special-shaped workpieces through the cooperation of movable components and clamping parts, maintains the stability of the workpiece during the processing, and prevents the workpiece from moving when the device performs composite processing on the workpiece through the composite processing parts, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a CNC machine tool for turning, grinding and milling composite processing.

[0015] Figure 2 It is a side view structural schematic diagram of a CNC machine tool for turning, grinding and milling composite processing.

[0016] Figure 3 Schematic diagram of the structure of the processing stabilization component of the CNC machine tool for turning, grinding and milling.

[0017] Figure 4This is a schematic diagram of the structure of the rotating disk of a CNC machine tool for turning, grinding and milling.

[0018] Figure 5 This is a schematic diagram of the structure of the fixed plate of a CNC machine tool for turning, grinding and milling composite processing.

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the support shell of a CNC machine tool for turning, grinding and milling composite processing.

[0020] Figure 7 This is a schematic diagram of the structure of the clamping components of a CNC machine tool for turning, grinding and milling.

[0021] Figure 8 This is a schematic diagram of the cross-sectional structure of the support block of a CNC machine tool for turning, grinding and milling composite processing.

[0022] Fig. 9 This is a schematic diagram of the structure of the adjusting wheel of a CNC machine tool for turning, grinding and milling composite processing.

[0023] Fig.10 This is a schematic diagram of the structure of the processing adjustment parts of the CNC machine tool for turning, grinding and milling composite processing.

[0024] Fig.11 For CNC machine tools for turning, grinding and milling Fig.10 A magnified view of the structure in the middle.

[0025] Fig.12 This is a schematic diagram of the structure of the first movable block of a CNC machine tool for turning, grinding and milling composite processing.

[0026] Fig.13 It is a schematic diagram of the structure of the second movable block of the CNC machine tool for turning, grinding and milling composite processing.

[0027] In the figure: 100, workbench; 200, composite processing unit; 201, processing stabilizing component; 201a, supporting shell; a, mounting hole; b, abutting end; c, connecting slot; 201b, power component; 201b-1, servo motor; 201b-2, connecting gear; 201b-3, connecting sleeve; 201c, movable component; 201c-1, fixed disk; 201c-2, rotating disk; 201c-3, sliding slot; 201c-4, arc extrusion slot; 201c-5, fixed threaded hole; 201d, clamping part; 201d-1, support block; 201d-2, sliding block; 201d-3, fixed shaft; 201d-4, secondary clamping part; 201d-4a, rotating shaft; 201d-4b, adjusting wheel; e, arc teeth; 201d-4c, adjusting rod; d, fixing ring; 201d-4d, stabilizing rod; 201d -4e, clamping block; 201d-4f, connecting block; 201e, fixing part; 201e-1, connecting clamping block; 201e-2, fixing bolt; 201e-3, clamping block; 202, composite processing assembly; 202a, fuselage; 202b, electric cylinder; 202c, track; 202d, composite processing part; 202d-1, connecting head; 202d-2, drill bit; 202d-3, processing adjustment part; 20 2d-3a, first movable block; g, internal thread; 202d-3b, first movable cavity; 202d-3c, bidirectional threaded rod; 202d-3d, second movable cavity; 202d-3e, second movable block; h, semicircular thread groove; 202d-3f, adjusting threaded rod; 202d-3g, pull rod; 202d-3h, mounting plate; f, angle line; 202d-3i, fixed block; 202d-4, milling cutter. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, and provides a CNC machine tool for turning, grinding and milling composite processing, which includes a workbench 100,

[0030] The composite processing unit 200 includes a processing stabilization component 201 disposed on the workbench 100 for stably clamping the special-shaped workpiece, and a composite processing component 202 disposed on the workbench 100 for cooperating with the processing stabilization component 201 to perform composite processing on the workpiece;

[0031] The processing stabilization component 201 includes a support shell 201a disposed on the workbench 100 for supporting, a power component 201b disposed on the support shell 201a for generating power to drive the processing stabilization component 201 to move, a movable component 201c disposed on the support shell 201a for limiting the movement of the processing stabilization component 201 to clamp the workpiece, a clamping component 201d disposed on the movable component 201c for clamping the workpiece, and a fixing component 201e disposed on the support shell 201a for facilitating the replacement of the clamping component 201d;

[0032] The composite processing assembly 202 includes a body 202a disposed on the workbench 100, an electric cylinder 202b disposed on the workbench 100 for supporting and driving the body 202a to move forward and backward and disposed on the workbench 100, a track 202c for the movement path of the body 202a, and a composite processing component 202d disposed on the body 202a for processing a workpiece. The body 202a is provided with a motor connected to the composite processing component 202d to drive the composite processing component 202d to rotate.

[0033] In summary, first place the workpiece to be processed at the center position of the movable component 201c, then start the power component 201b to drive the movable component 201c to rotate, then the movable component 201c drives the clamping component 201d to clamp the workpiece, after the clamping component 201d clamps the workpiece, adjust the clamping component 201d to move so that the clamping component 201d can fully clamp the workpiece, then start the electric cylinder 202b to make the fuselage 202a drive the composite processing component 202d close to the workpiece, then start the motor to drive the composite processing component 202d to process the workpiece.

[0034] Example 2, reference Figure 1-Figure 9 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: the workpiece is stably clamped. Compared with the first embodiment, further, the power component 201b includes a servo motor 201b-1 disposed on the supporting housing 201a, which is used to generate power. When the device is small, the servo motor 201b-1 can be replaced by a manually rotated connecting gear 201b-2 disposed at the output end of the servo motor 201b-1, and a connecting sleeve 201b-3 disposed on the movable component 201c and matched with the connecting gear 201b-2, which is used to cooperate with the connecting gear 201b-2 to drive the movable component 201c to rotate;

[0035] The supporting shell 201a is provided with a mounting hole a to match the servo motor 201b-1 and is used to install the servo motor 201b-1.

[0036] Wherein, the movable component 201c includes a fixed disk 201c-1 arranged on the supporting shell 201a, a rotating disk 201c-2 arranged on the supporting shell 201a, a sliding groove 201c-3 arranged on the fixed disk 201c-1 and cooperating with the supporting block 201d-1, an arc-shaped extrusion groove 201c-4 arranged on the rotating disk 201c-2 and cooperating with the sliding block 201d-2, and a fixed threaded hole 201c-5 arranged on the fixed disk 201c-1 and cooperating with the fixed component 201e. The arc-shaped extrusion groove 201c-4 pushes and pulls the clamping component 201d on the sliding groove 201c-3 by rotating the rotating disk 201c-2 and cooperating with the fixed disk 201c-1, thereby driving the clamping component 201d to move back and forth on the sliding groove 201c-3 to clamp the workpiece;

[0037] The supporting shell 201a is provided with an abutting end b that matches the rotating disk 201c-2 and is used to abut against the rotating disk 201c-2;

[0038] The fixing component 201e includes a connecting block 201e-1 disposed on the supporting housing 201a, a fixing bolt 201e-2 disposed on the connecting block 201e-1, and a block 201e-3 disposed on the connecting block 201e-1;

[0039] The supporting shell 201a is provided with a connecting card slot c that matches the connecting card block 201e-1.

[0040] Among them, the clamping component 201d includes a supporting block 201d-1 arranged on the movable component 201c, a sliding block 201d-2 arranged on the supporting block 201d-1 and matched with the sliding groove 201c-3, a fixed shaft 201d-3 arranged on the sliding block 201d-2 and matched with the arc extrusion groove 201c-4 for moving back and forth on the sliding groove 201c-3, which is used to push and pull the fixed shaft 201d-3 when the rotating disk 201c-2 drives the arc extrusion groove 201c-4 to rotate, thereby driving the sliding block 201d-2 in the sliding groove 201c-3, and a secondary clamping piece 201d-4 arranged on the supporting block 201d-1, which is used to adjust the length of the clamping component 201d to adapt to the contour of the special-shaped workpiece.

[0041] Wherein, the secondary clamping member 201d-4 includes a rotating shaft 201d-4a rotatably arranged on the support block 201d-1, used to rotate and rotate an adjusting wheel 201d-4b arranged on the rotating shaft 201d-4a, used to cooperate with the rotating shaft 201d-4a to rotate, an adjusting rod 201d-4c arranged on the support block 201d-1, used to cooperate with the adjusting wheel 201d-4b to move up and down, a stabilizing rod 201d-4d arranged on the support block 201d-1, used to maintain the stability of the adjusting rod 201d-4c moving up and down, a clamping block 201d-4e arranged under the adjusting rod 201d-4c, used to cooperate with the adjusting rod 201d-4c to move up and down to abut against the workpiece, and a connecting block 201d-4f arranged on the adjusting rod 201d-4c, used to limit the moving length of the adjusting rod 201d-4c to avoid falling due to excessive movement;

[0042] A fixing ring d is provided on the adjusting rod 201d-4c, and the outer portion of the adjusting wheel 201d-4b is provided as an arc surface which fits the adjusting rod 201d-4c, so as to increase the force-bearing area, improve the stability of the activity, and avoid a large single-point force which reduces the life of the components. An arc-shaped tooth e is provided on the arc surface to cooperate with the fixing ring d. The arc-shaped tooth e cooperates with the rotation of the adjusting wheel 201d-4b to push the fixing ring d up and down, so as to control the up and down movement of the adjusting rod 201d-4c.

[0043] The rest of the structure is the same as that of Example 1.

[0044] In summary, when the workpiece to be processed is placed at the center of the fixed disk 201c-1, the servo motor 201b-1 is started to drive the rotating disk 201c-2 to rotate, and the arc-shaped extrusion groove 201c-4 rotates, and cooperates with the sliding groove 201c-3 to squeeze the fixed shaft 201d-3. At this time, the support block 201d-1 moves toward the center of the fixed disk 201c-1 on the sliding groove 201c-3 through the sliding block 201d-2 to clamp the workpiece;

[0045] When the clamping component 201d clamps the workpiece, the staff can release the workpiece. At this time, a part of the secondary clamping member 201d-4 is in contact with the workpiece, and the other part has not yet contacted the workpiece. The clamping state is unstable, which will have an adverse effect on the conformity processing of the workpiece. At this time, the rotating shaft 201d-4a of the corresponding side is rotated, and the adjusting wheel 201d-4b rotates. The adjusting rod 201d-4c is driven to move toward the workpiece through the cooperation of the fixed ring d and the arc tooth e until the clamping block 201d-4e contacts the workpiece. At this time, the rotation of the rotating shaft 201d-4a is stopped. At this time, the clamping of the workpiece is completed. At this time, the workpiece can be compositely processed by the composite processing component 202d. When the workpiece is processed, the state of the clamping component 201d is maintained, and the servo motor 201b-1 is started to control the clamping component 201d to open and take out the workpiece. At this time, the next group of workpieces can be placed in the clamping range of the clamping component 201d. This avoids repeated adjustment of the clamping component 201d and improves the processing speed.

[0046] Example 3, reference Figure 1-Figure 13 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: a composite processing is performed on the workpiece. Compared with the first embodiment, further, the composite processing component 202d includes a connecting head 202d-1 arranged on the body 202a, which plays a connecting role, a drill bit 202d-2 arranged on the connecting head 202d-1, which is used for grinding and drilling the workpiece, a processing adjustment member 202d-3 arranged on the connecting head 202d-1, and a milling cutter 202d-4 arranged on the processing adjustment member 202d-3, which is used for turning and milling the workpiece, and the processing adjustment member 202d-3 is used to control the processing angle of the milling cutter 202d-4 on the workpiece to achieve angle processing.

[0047] Wherein, the processing adjustment member 202d-3 includes a first movable block 202d-3a arranged on the connecting head 202d-1, wherein the first movable block 202d-3a is provided with two groups, which are respectively arranged on both sides of the drill bit 202d-2 to play a connecting role; a first movable cavity 202d-3b arranged on the connecting head 202d-1 is used for the first movable block 202d-3a to move back and forth, and control the distance from the milling cutter 202d-4 to the drill bit 202d-2 to adapt to workpieces of different sizes; a bidirectional threaded rod 202d-3c arranged on the two groups of first movable blocks 202d-3a is used to rotate and drive the first movable block 202d-3a to move back and forth; a second movable cavity 202d-3d arranged on the first movable block 202d-3a; a second movable block 202d-3e arranged in the second movable cavity 202d-3d is used to move back and forth in the second movable cavity 202d-3d; The adjusting threaded rod 202d-3f arranged in the second movable cavity 202d-3d is used for rotating, driving the second movable block 202d-3e to move back and forth in the second movable cavity 202d-3d, rotating the pull rod 202d-3g arranged on the second movable block 202d-3e, and generating thrust as the second movable block 202d-3e moves, rotating the mounting plate 202d-3h arranged on the pull rod 202d-3g, and being used to install the milling cutter 202d-4, and at the same time, being tilted in cooperation with the pulling of the pull rod 202d-3g, so as to control the processing angle of the workpiece; and the fixed block 202d-3i arranged on the first movable block 202d-3a and being rotatably connected with the mounting plate 202d-3h, is used for being the center point of the mounting plate 202d-3h when it is tilted and rotated, and at the same time, being cooperated with the two ends of the pull rod 202d-3g to form a triangular support, so as to improve the stability of the mounting plate 202d-3h.

[0048] Among them, an angle line f is provided on the mounting plate 202d-3h, which cooperates with the fixing block 202d-3i and is used to accurately control the inclination angle of the mounting plate 202d-3h.

[0049] Among them, the second movable block 202d-3e is provided with an internal thread g to cooperate with the bidirectional threaded rod 202d-3c.

[0050] Among them, a semicircular thread groove h is provided on one side of the second movable block 202d-3e to cooperate with the adjusting thread rod 202d-3f.

[0051] The rest of the structure is the same as that of Example 2.

[0052] In summary, when the fuselage 202a drives the drill bit 202d-2 to approach the workpiece, the bidirectional threaded rod 202d-3c is rotated to drive the two groups of first movable blocks 202d-3a to move away from or closer to each other to adapt to the shape of the workpiece. If a bevel is to be processed on the workpiece, the adjusting threaded rod 202d-3f is rotated to drive the second movable block 202d-3e to move in the second movable cavity 202d-3d, and the mounting plate 202d-3h is pulled by the pull rod 202d-3g, and the drill bit 202d-2 is driven to tilt through the mounting plate 202d-3h. When the angle of the drill bit 202d-2 is adjusted, the motor is started to drive the connecting head 202d-1 to rotate, and the drill bit 202d-2 and the milling cutter 202d-4 are driven to process the workpiece.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A CNC machine tool for turning, grinding and milling, characterized in that: Includes, Workbench (100), A composite processing unit (200), the composite processing unit (200) comprising a processing stabilization component (201) arranged on the workbench (100), and a composite processing component (202) arranged on the workbench (100); The processing stabilization component (201) comprises a support shell (201a) arranged on the workbench (100), a power component (201b) arranged on the support shell (201a), a movable component (201c) arranged on the support shell (201a), a clamping component (201d) arranged on the movable component (201c), and a fixing component (201e) arranged on the support shell (201a); The composite processing assembly (202) comprises a body (202a) arranged on the workbench (100), an electric cylinder (202b) arranged on the workbench (100), a track (202c) arranged on the workbench (100), and a composite processing component (202d) arranged on the body (202a); The composite processing component (202d) comprises a connecting head (202d-1) arranged on the body (202a), a drill bit (202d-2) arranged on the connecting head (202d-1), a processing adjustment piece (202d-3) arranged on the connecting head (202d-1), and a milling cutter (202d-4) arranged on the processing adjustment piece (202d-3); The processing adjustment member (202d-3) comprises a first movable block (202d-3a) arranged on the connecting head (202d-1), the first movable block (202d-3a) being provided with two groups, respectively arranged on both sides of the drill bit (202d-2), a first movable cavity (202d-3b) arranged on the connecting head (202d-1), a bidirectional threaded rod (202d-3c) arranged on the two groups of the first movable blocks (202d-3a), and a second movable cavity (202d-3c) arranged on the first movable block (202d-3a). d), a second movable block (202d-3e) arranged in the second movable cavity (202d-3d), an adjusting threaded rod (202d-3f) arranged in the second movable cavity (202d-3d), a pull rod (202d-3g) rotatably arranged on the second movable block (202d-3e), a mounting plate (202d-3h) rotatably arranged on the pull rod (202d-3g), and a fixed block (202d-3i) arranged on the first movable block (202d-3a) and rotatably connected to the mounting plate (202d-3h).

2. The CNC machine tool for turning, grinding and milling according to claim 1, characterized in that: The power component (201b) comprises a servo motor (201b-1) arranged on the supporting housing (201a), a connecting gear (201b-2) arranged at the output end of the servo motor (201b-1), and a connecting sleeve (201b-3) arranged on the movable component (201c) and matching with the connecting gear (201b-2); The supporting shell (201a) is provided with a mounting hole (a) for matching with the servo motor (201b-1); The clamping component (201d) comprises a support block (201d-1) arranged on the movable component (201c), a sliding block (201d-2) arranged on the support block (201d-1), a fixed shaft (201d-3) arranged on the sliding block (201d-2), and a secondary clamping piece (201d-4) arranged on the support block (201d-1); The secondary clamping member (201d-4) comprises a rotating shaft (201d-4a) arranged on the support block (201d-1), an adjusting wheel (201d-4b) arranged on the rotating shaft (201d-4a), an adjusting rod (201d-4c) arranged on the support block (201d-1), a stabilizing rod (201d-4d) arranged on the support block (201d-1), a clamping block (201d-4e) arranged under the adjusting rod (201d-4c), and a connecting block (201d-4f) arranged on the adjusting rod (201d-4c); The adjusting rod (201d-4c) is provided with a fixing ring (d), the exterior of the adjusting wheel (201d-4b) is provided with an arc surface that fits the adjusting rod (201d-4c), and the arc surface is provided with arc-shaped teeth (e) that match the fixing ring (d).

3. The CNC machine tool for turning, grinding and milling as claimed in claim 2, characterized in that: The movable component (201c) comprises a fixed disk (201c-1) arranged on the supporting shell (201a), a rotating disk (201c-2) arranged on the supporting shell (201a), a sliding groove (201c-3) arranged on the fixed disk (201c-1) and matching the supporting block (201d-1), an arc-shaped extrusion groove (201c-4) arranged on the rotating disk (201c-2) and matching the sliding block (201d-2), and a fixing threaded hole (201c-5) arranged on the fixed disk (201c-1) and matching the fixing component (201e); The supporting shell (201a) is provided with an abutment end (b) that cooperates with the rotating disk (201c-2); The fixing component (201e) comprises a connecting block (201e-1) arranged on the supporting shell (201a), a fixing bolt (201e-2) arranged on the connecting block (201e-1), and a block (201e-3) arranged on the connecting block (201e-1); The supporting shell (201a) is provided with a connection slot (c) that matches the connection block (201e-1).

4. The CNC machine tool for turning, grinding and milling as claimed in claim 3, characterized in that: The mounting plate (202d-3h) is provided with an angle line (f) that matches the fixing block (202d-3i).

5. The CNC machine tool for turning, grinding and milling as claimed in claim 4, characterized in that: The second movable block (202d-3e) is provided with an internal thread (g) that matches the bidirectional threaded rod (202d-3c).

6. The CNC machine tool for turning, grinding and milling as claimed in claim 5, characterized in that: A semicircular thread groove (h) is provided on one side of the second movable block (202d-3e) to cooperate with the adjusting threaded rod (202d-3f).

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