Numerically-controlled lathe with anti-fracture machined part

Abstract

The invention relates to the technical field of numerical control lathes, in particular to a numerical control lathe with an anti-fracture machined part. Comprising a numerically-controlled lathe, an anti-breaking mechanism and a positioning mechanism, the anti-breaking mechanism is slidably installed in the numerically-controlled lathe, the positioning mechanism is movably installed on one side of the surface of the anti-breaking mechanism, the positioning mechanism is movably adjusted on one side of the surface of the numerically-controlled lathe through the anti-breaking mechanism, the numerically-controlled lathe comprises a clamping plate, and the anti-breaking mechanism comprises a pressing block; the clamping plate slides through the numerical control lathe and corresponds to the surface position of the pressing block in parallel, a limiting clamping ring and a butt joint piece are movably installed on the left side and the right side of the surface of the pressing block, a boring shaft is clamped to one side of the surface of the limiting clamping ring in a telescopic mode, the positioning mechanism comprises a supporting rod, a lantern ring is connected to one side of the surface of the supporting rod, and the butt joint piece is clamped to the supporting rod in a telescopic mode. And the arranged limiting clamping ring also has a limiting effect on the surface of the boring shaft, so that the phenomenon that the boring shaft is broken when the outer edge of the side edge of the machined part is bored is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled lathes, in particular to a numerically controlled lathe with anti-breakage workpieces. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools at present. It is mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, reaming and boring, etc.

[0003] Currently available CNC lathes with anti-breakage workpieces, when boring the side edges of the workpieces, the thickness of the edge of the workpieces may easily cause the workpieces to break. In addition, during the boring process of the side edges of the workpieces, the tail surface of the workpieces cannot be clamped and fixed in time, which may easily cause the workpieces to loosen or deviate, resulting in unqualified boring of the workpieces and affecting the yield of the workpieces.

[0004] Therefore, there is an urgent need for a CNC lathe with anti-breakage workpieces to solve the existing technical problems. Summary of the invention

[0005] The object of the present invention is to provide a CNC lathe with an anti-breakage workpiece to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the purpose of the present invention is to provide a CNC lathe with anti-breaking workpieces, including a CNC lathe, an anti-breaking mechanism and a positioning mechanism. The anti-breaking mechanism is slidably installed inside the CNC lathe, and the positioning mechanism is movably installed on one side of the surface of the anti-breaking mechanism, and the positioning mechanism is movably adjusted on one side of the surface of the CNC lathe through the anti-breaking mechanism. The CNC lathe includes a clamping plate, and the anti-breaking mechanism includes a pressing block. The clamping plate slides through the CNC lathe and corresponds to the surface position of the pressing block in parallel. Limiting clamps and docking parts are movably installed on the left and right sides of the surface of the pressing block. A boring shaft is telescopically clamped on one side of the surface of the limiting clamp ring. The positioning mechanism includes a support rod, and a sleeve ring is connected to one side of the surface of the support rod. The docking part is telescopically clamped with the support rod and drives the sleeve ring to slide and adjust on one side of the surface of the clamping plate.

[0007] As a further improvement of the present technical solution, the CNC lathe includes an outer shell, a workbench is arranged on the upper surface of the outer shell, a guide rail is installed at the center position of the workbench surface, a slide groove 1 is opened on the front and rear sides of the upper surface of the guide rail, a ball screw is installed on the front and rear sides of the guide rail side, a slider is slidably sleeved on the surface of the ball screw, a slide plate 1 is installed on one side of the slider surface, a slide groove 2 is opened on the left and right sides of the upper surface of the slide groove 1, a slide plate 2 is slidably connected on the upper surface of the slide groove 2, a clamping plate is installed at the center position of the front and rear sides of the upper surface of the slide plate 2, a hydraulic cylinder is installed on one side of the surface of the slide plate 2, hydraulic telescopic rods are installed at both ends of one side of the surface of the hydraulic cylinder, the hydraulic telescopic rod is connected to the hydraulic cylinder body through a flange connection method, the hydraulic telescopic rod is in contact with one side of the surface of the slide plate 2, and drives the slide plate 2 to slide back and forth on the upper surface of the slide plate 1 through the hydraulic cylinder.

[0008] As a further improvement of the present technical solution, the anti-breakage mechanism includes a fixed block, a buffer spring is installed at the inner center position of the fixed block, folding plates are connected on both sides of the surface of the buffer spring, an adjusting plate is installed on one side of the surface of the folding plate, a sleeve rod is installed on one side of the surface of the adjusting plate, a mounting rod is telescopically clamped on one side of the surface of the sleeve rod, a limiting clamping ring is connected to one side of the surface of the mounting rod, a fixing clamping ring is clamped on one side of the surface of the mounting rod, a boring shaft is installed on the surface of the limiting clamping ring, a docking piece is installed on one side of the surface of the adjusting plate, and one side of the surface of the boring shaft is parallel to and corresponds to the surface position of the clamping plate.

[0009] As a further improvement of the present technical solution, the positioning mechanism includes a positioning groove, a sliding rod is slidably connected to one side of the surface of the positioning groove, a support rod is installed on the surface of the sliding rod, a ring is installed on one side of the surface of the support rod, a push rod is movably connected to one side of the surface of the positioning groove, a push block is installed on one side of the surface of the push rod, an adapter is installed at the bottom of one side of the surface of the push block, a rotating rod is fixedly sleeved on one side of the surface of the adapter, a drag block is fixedly installed on the surface of the rotating rod, and the surface of the support rod and the docking piece are movably connected by adjusting the adjustment plate.

[0010] As a further improvement of the present technical solution, a groove is provided at the center of the bottom surface of the collar, and the adapter pushes the push block to slide through the push rod and contact the adapter, so that the rotating rod rotates to drive the drag block to lift upward and engage with the groove surface.

[0011] As a further improvement of the technical solution, the clamping plate slides correspondingly with the pressing block through a ball screw and a slider, and is in pressing contact with the surface of the pressing block through a hydraulic cylinder and a hydraulic telescopic rod.

[0012] As a further improvement of the technical solution, the sleeve ring pushes the slide rod to slide and adjust on the surface of the positioning groove through the docking piece, and simultaneously allows the push rod to slide and adjust the push block.

[0013] As a further improvement of the technical solution, the limiting clamping ring is movably clamped to one side of the boring shaft surface through a sleeve rod and a fixed clamping ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The CNC lathe with anti-breakage workpiece can first limit and clamp the workpiece through the set clamping plate. When it is necessary to cut and process grooves of different sizes, concave holes or perforations of different sizes at different positions on the outer edge of the workpiece, the clamping plate is used to squeeze the pressing block. Under the squeezing action of the buffer spring and the folding plate, the adjusting plate is effectively lifted, the sleeve rod is docked with the mounting rod, the limiting clamping ring is displaced, and moves in the opposite direction to the clamping plate. When the clamping plate squeezes the pressing block into the fixed block, the set limiting clamping ring also has a limiting effect on the surface of the boring shaft, avoiding the phenomenon of the boring shaft breaking when boring the outer edge of the side of the workpiece.

[0016] 2. The CNC lathe with anti-breakage workpiece has a sleeve rod driving a limit clamp to limit the boring shaft, while the arranged docking piece is synchronously moved to one side of the clamping plate and clamped in contact with the surface of the support rod. The positioning groove is used to drive the slide rod to slide and adjust the support rod, so that the sleeve ring can effectively clamp and limit one side of the tail surface of the workpiece, ensuring that the workpiece always remains in a stable state during the side outer edge boring process.

[0017] 3. The CNC lathe with anti-breakage workpiece slides on the surface of the positioning groove through the sliding rod and is squeezed and contacted with the surface of the push rod, so that the push block slides at the same time and contacts with the surface of the adapter, thereby allowing the rotating rod to rotate, and then one side of the drag block surface is lifted upward. Since a groove is provided at the center position of the bottom surface of the collar, the adapter pushes the push block to slide through the push rod and contacts with the adapter, so that the rotating rod rotates to drive the drag block to be lifted upward and contact with the groove surface, which can support the bottom surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the CNC lathe of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection structure of the slide plate 2, the hydraulic telescopic rod and the clamping plate of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the anti-breaking mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection structure of the adjustment plate, the buffer spring and the folding plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0023] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 7 It is a schematic diagram of the connection structure of the anti-breaking mechanism and the positioning mechanism of the present invention;

[0025] Figure 8 It is a schematic diagram of the connection structure of the adjustment plate and the folding plate of the present invention.

[0026] The meaning of each number in the figure is:

[0027] 100, CNC lathe; 101, housing; 102, workbench; 103, guide rail; 104, slideway 1; 105, ball screw; 106, slider; 107, slideway 1; 108, slideway 2; 109, slideway 2; 111, clamping plate; 112, hydraulic cylinder; 113, hydraulic telescopic rod;

[0028] 200, anti-breaking mechanism; 201, fixing block; 202, pressing block; 203, adjusting plate; 204, sleeve rod; 205, mounting rod; 206, limiting snap ring; 207, boring shaft; 208, fixing snap ring; 209, docking piece; 210, buffer spring; 211, folding plate;

[0029] 300, positioning mechanism; 301, positioning slot; 302, sliding rod; 303, supporting rod; 304, collar; 305, push rod; 306, push block; 307, adapter; 308, rotating rod; 309, drag block. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example

[0032] See also Figure 1 and Figure 7As shown, the purpose of this embodiment is to provide a CNC lathe with an anti-breaking workpiece, including a CNC lathe 100, an anti-breaking mechanism 200 and a positioning mechanism 300, the anti-breaking mechanism 200 is slidably installed inside the CNC lathe 100, the positioning mechanism 300 is movably installed on one side of the surface of the anti-breaking mechanism 200, and the positioning mechanism 300 is movably adjusted on one side of the surface of the CNC lathe 100 through the anti-breaking mechanism 200, the CNC lathe 100 includes a clamping plate 111, and the anti-breaking mechanism 200 includes a pressing The block 202, the clamping plate 111 slides through the CNC lathe 100, and corresponds to the surface position of the pressing block 202 in parallel. The left and right sides of the surface of the pressing block 202 are movably installed with a limit clamp ring 206 and a docking piece 209. One side of the surface of the limit clamp ring 206 is telescopically clamped with a boring shaft 207. The positioning mechanism 300 includes a support rod 303, and one side of the surface of the support rod 303 is connected with a collar 304. The docking piece 209 is telescopically clamped with the support rod 303, and drives the collar 304 to slide and adjust on one side of the surface of the clamping plate 111;

[0033] The workpiece is clamped and limited by the clamping plate 111, and the CNC lathe 100 is used to transfer the workpiece clamped on the surface of the clamping plate 111, so that one side of the surface of the clamping plate 111 is parallel to the surface position of the pressing block 202, and the limiting clamping ring 206 is effectively fixed to the position of the boring shaft 207, and the squeezing of the pressing block 202 by the clamping plate 111 is stopped. The docking piece 209 is correspondingly engaged with the sleeve ring 304, and drives the sleeve ring 304 to slide and adjust on one side of the tail surface of the workpiece, which can clamp and limit the tail surface of the workpiece, ensuring the normal boring operation of the workpiece inside the CNC lathe 100.

[0034] according to Figure 1-Figure 2 As shown, considering the need to realize the operation of the CNC lathe 100, in this embodiment, the CNC lathe 100 includes a shell 101, a workbench 102 is arranged on the upper surface of the shell 101, a guide rail 103 is installed at the center of the surface of the workbench 102, a slide groove 104 is opened on the front and rear sides of the upper surface of the guide rail 103, a ball screw 105 is installed on the front and rear sides of the side of the guide rail 103, a slider 106 is slidably sleeved on the surface of the ball screw 105, a slide plate 107 is installed on one side of the surface of the slider 106, and a slide groove 102 is opened on the left and right sides of the upper surface of the slider 107. 08, the upper surface of the slide groove 108 is slidably connected with the slide plate 109, and the clamping plates 111 are installed at the center positions of the front and rear sides of the upper surface of the slide plate 109, and a hydraulic cylinder 112 is installed on one side of the surface of the slide plate 109, and hydraulic telescopic rods 113 are installed on both ends of one side of the surface of the hydraulic cylinder 112. The hydraulic telescopic rod 113 is connected to the cylinder body of the hydraulic cylinder 112 through a flange connection. The hydraulic telescopic rod 113 is in contact with one side of the surface of the slide plate 109, and drives the slide plate 109 to slide forward and backward on the upper surface of the slide plate 1 107 through the hydraulic cylinder 112;

[0035] Furthermore, by placing the workpiece on the surface of the clamping plate 111, the slide groove 104 and the slider 106 can allow the clamping plate 111 to slide forward and backward on the upper surface of the guide rail 103, and correspond to the center position of the surface of the boring shaft 207, and start the hydraulic cylinder 112. Under the action of the hydraulic telescopic rod 113, the slide plate 109 can be adjusted to slide forward and backward on the upper surface of the slide plate 107 through the slide groove 108, and the side edge boring operation of the workpiece on the surface of the clamping plate 111 can be performed;

[0036] The improvement lies in that the workpiece is effectively transferred to the surface of the boring shaft 207 by using the guide rail 103, and the boring operation is performed on the center position of the workpiece surface. At the same time, the hydraulic cylinder 112 and the hydraulic telescopic rod 113 can move the workpiece on the surface of the clamping plate 111 forward and backward, and the side edges of the workpiece are bored, thereby improving the work efficiency of boring the workpiece.

[0037] according to Figure 3-Figure 4 and Figure 8 As shown, considering the need to realize the anti-breaking effect of the anti-breaking mechanism 200, in this embodiment, the anti-breaking mechanism 200 includes a fixed block 201, a buffer spring 210 is installed at the center position inside the fixed block 201, folding plates 211 are connected to both sides of the surface of the buffer spring 210, an adjusting plate 203 is installed on one side of the surface of the folding plate 211, a sleeve rod 204 is installed on one side of the surface of the adjusting plate 203, a mounting rod 205 is telescopically connected to one side of the surface of the sleeve rod 204, a limiting snap ring 206 is connected to one side of the surface of the mounting rod 205, a fixing snap ring 208 is clamped on one side of the surface of the mounting rod 205, a boring shaft 207 is installed on the surface of the limiting snap ring 206, a docking piece 209 is installed on one side of the surface of the adjusting plate 203, and one side of the surface of the boring shaft 207 is parallel to and corresponds to the surface position of the clamping plate 111;

[0038] Furthermore, the clamping plate 111 is pressed by the hydraulic cylinder 112 and the hydraulic telescopic rod 113 to make the surface of the clamping plate 111 contact with the surface of the pressing block 202. Under the pressing action of the buffer spring 210 and the folding plate 211, the adjusting plate 203 is tilted to both sides, so that the sleeve rod 204 and the installation rod 205 are effectively sleeved correspondingly, and the limit clamping ring 206 is telescopically clamped with one side of the surface of the boring shaft 207. The squeezing force on the boring shaft 207 is used to stop the clamping plate 111 from squeezing the pressing block 202.

[0039] The improvement lies in: utilizing the squeezing force of the clamping plate 111 on the pressing block 202, and under the squeezing and folding of the buffer spring 210 and the folding plate 211, the adjusting plate 203 drives the sleeve rod 204 to lift, and the mounting rod 205 allows the limiting clamping ring 206 to clamp and engage with the surface of the boring shaft 207, effectively preventing the clamping plate 111 from generating squeezing force on the pressing block 202, thereby preventing the boring shaft 207 from boring holes on the side edges of the workpiece and causing the workpiece to break.

[0040] according to Figure 5-Figure 6 As shown, considering the need to realize the positioning function of the positioning mechanism 300, in this embodiment, the positioning mechanism 300 includes a positioning groove 301, a sliding rod 302 is slidably connected to one side of the surface of the positioning groove 301, a support rod 303 is installed on the surface of the sliding rod 302, a collar 304 is installed on one side of the surface of the support rod 303, a push rod 305 is movably connected to one side of the surface of the positioning groove 301, a push block 306 is installed on one side of the surface of the push rod 305, an adapter 307 is installed at the bottom of one side of the surface of the push block 306, a rotating rod 308 is fixedly sleeved on one side of the surface of the adapter 307, a drag block 309 is fixedly installed on the surface of the rotating rod 308, and the surface of the support rod 303 is movably connected to the docking member 209 through the adjustment plate 203;

[0041] Furthermore, the docking piece 209 is lifted up by the adjustment plate 203 and engaged with the surface of the support rod 303, and the slide rod 302 is used to drive the support rod 303 to slide forward and backward, so that the collar 304 can effectively clamp one side of the tail surface of the workpiece, and at the same time, the slide rod 302 generates a thrust on the push rod 305, so that the push block 306 can slide synchronously and contact and rotate with the surface of the adapter 307, so that the rotating rod 308 drives the drag block 309 to rotate, and when the drag block 309 is lifted upward, it can be engaged with the bottom surface of the collar 304 to support the bottom surface of the workpiece;

[0042] The improvement lies in: utilizing the clamping and pushing function of the docking piece 209 and the support rod 303, the collar 304 is clamped and clamped to the side of the tail surface of the workpiece which is clamped to the surface of the clamping plate 111, so as to facilitate the boring shaft 207 to bore the side edges of the workpiece, thereby ensuring the stability of the processing, and at the same time allowing the drag block 309 to clamp and contact with the bottom surface of the collar 304, which can support the bottom surface of the workpiece.

[0043] In short, according to Figure 7As shown, the hydraulic telescopic rod 113 is used to squeeze and slide the slide plate 109 toward one side of the inside of the CNC lathe 100, so that the surface of the clamping plate 111 generates an extrusion force on the pressing block 202. Under the elastic force of the buffer spring 210, the folding plate 211 is bounced on both sides of the buffer spring 210, and the adjusting plate 203 is lifted synchronously. The sleeve rod 204 and the installation rod 205 set on one side are used to extend and retract the limit clamping ring 206, and the limit clamping is engaged with one side of the surface of the boring shaft 207. Under the relative force, the workpiece clamped on the surface of the clamping plate 111 is bored. The adapter 307 drives the rotating rod 308 to rotate under the thrust of the push rod 305 and the push block 306, so that one side of the drag block 309 is lifted up and engaged with the bottom surface of the collar 304, effectively supporting the bottom surface of the workpiece, and achieving the stable operation of boring the side edges of the workpiece.

[0044] In summary, the working principle of the present invention is as follows: the clamping plate 111 is squeezed by the hydraulic cylinder 112 and the hydraulic telescopic rod 113 to make the surface of the clamping plate 111 and the surface of the pressing block 202 squeezed and contacted. The set clamping plate 111 can first limit the workpiece and clamp it. When it is necessary to cut grooves of different sizes, concave holes or perforations of different sizes at different positions on the outer edge of the workpiece, the clamping plate 111 is used to squeeze the pressing block 202. Under the squeezing action of the buffer spring 210 and the folding plate 211, the adjusting plate 203 is effectively lifted, the sleeve rod 204 is docked with the mounting rod 205, the limiting snap ring 206 is displaced, and moves in the opposite direction with the clamping plate 111. When the clamping plate 111 squeezes the pressing block 202 into the fixed block 201, the provided limiting snap ring 206 also limits the surface of the boring shaft 207, thereby preventing the boring shaft 207 from breaking when boring the outer edge of the side of the workpiece;

[0045] While the sleeve rod 204 drives the limiting clamp ring 206 to limit the boring shaft 207, the provided docking piece 209 is synchronously moved toward the side of the clamping plate 111 and is clamped and contacted with the surface of the support rod 303. The positioning groove 301 is used to make the slide rod 302 drive the support rod 303 to slide and adjust, so that the sleeve ring 304 can effectively clamp and limit the surface of the tail of the workpiece, ensuring that the workpiece always maintains a stable state during the side outer edge boring process.

[0046] The slide bar 302 slides on the surface of the positioning groove 301 and is pressed and contacted with the surface of the push rod 305, so that the push block 306 slides at the same time and contacts with the surface of the adapter 307, thereby allowing the rotating rod 308 to rotate, and then allowing one side of the surface of the drag block 309 to lift up. Since a groove is provided at the center position of the bottom surface of the ring 304, the adapter 307 pushes the push block 306 to slide through the push rod 305 and contacts with the adapter 307, so that the rotating rod 308 rotates to drive the drag block 309 to lift up and contact with the surface of the groove, which can support the bottom surface of the workpiece.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A CNC lathe with anti-breakage workpiece, characterized in that: The invention comprises a numerically controlled lathe (100), an anti-breaking mechanism (200) and a positioning mechanism (300), wherein the anti-breaking mechanism (200) is slidably mounted inside the numerically controlled lathe (100), the positioning mechanism (300) is movably mounted on one side of the surface of the anti-breaking mechanism (200), and the positioning mechanism (300) is movably adjusted on one side of the surface of the numerically controlled lathe (100) through the anti-breaking mechanism (200), the numerically controlled lathe (100) comprises a clamping plate (111), the anti-breaking mechanism (200) comprises a pressing block (202), and the clamping plate (111) is movably adjusted on one side of the surface of the numerically controlled lathe (100) through the anti-breaking mechanism (200). The bed (100) slides in parallel with the surface position of the pressing block (202); a limit clamping ring (206) and a docking piece (209) are movably installed on the left and right sides of the surface of the pressing block (202); a boring shaft (207) is telescopically clamped on one side of the surface of the limit clamping ring (206); the positioning mechanism (300) comprises a support rod (303); a sleeve ring (304) is connected to one side of the surface of the support rod (303); the docking piece (209) is telescopically clamped with the support rod (303) and drives the sleeve ring (304) to slide and adjust on one side of the surface of the clamping plate (111).

2. The CNC lathe with anti-breakage workpiece according to claim 1, characterized in that: The numerically controlled lathe (100) comprises a shell (101), a workbench (102) is arranged on the upper surface of the shell (101), a guide rail (103) is installed at the center position of the surface of the workbench (102), a slide groove (104) is opened on the front and rear sides of the upper surface of the guide rail (103), a ball screw (105) is installed on the front and rear sides of the side of the guide rail (103), a slider (106) is slidably sleeved on the surface of the ball screw (105), a slide plate (107) is installed on one side of the surface of the slider (106), a slide groove (108) is opened on the left and right sides of the upper surface of the slide plate (107), and a slide groove (108) is opened on the upper surface of the slide groove (108). The surface is slidably connected with a slide plate 2 (109), a clamping plate (111) is installed at the center position of the front and rear sides of the upper surface of the slide plate 2 (109), a hydraulic cylinder (112) is installed on one side of the surface of the slide plate 2 (109), and hydraulic telescopic rods (113) are installed at both ends of one side of the surface of the hydraulic cylinder (112), and the hydraulic telescopic rod (113) is connected to the cylinder body of the hydraulic cylinder (112) through a flange connection method. The hydraulic telescopic rod (113) is in contact with one side of the surface of the slide plate 2 (109) and drives the slide plate 2 (109) to slide forward and backward on the upper surface of the slide plate 1 (107) through the hydraulic cylinder (112).

3. The CNC lathe with anti-breakage workpiece according to claim 2, characterized in that: The anti-breaking mechanism (200) comprises a fixed block (201), a buffer spring (210) is installed at the center position inside the fixed block (201), folding plates (211) are connected to both sides of the surface of the buffer spring (210), an adjustment plate (203) is installed on one side of the surface of the folding plate (211), a sleeve rod (204) is installed on one side of the surface of the adjustment plate (203), a mounting rod (205) is telescopically clamped on one side of the surface of the sleeve rod (204), a limiting clamping ring (206) is connected to one side of the surface of the mounting rod (205), a fixing clamping ring (208) is clamped on one side of the surface of the mounting rod (205), a boring shaft (207) is installed on the surface of the limiting clamping ring (206), a docking piece (209) is installed on one side of the surface of the adjustment plate (203), and one side of the surface of the boring shaft (207) is parallel to the surface position of the clamping plate (111).

4. The CNC lathe with anti-breakage workpiece according to claim 3, characterized in that: The positioning mechanism (300) comprises a positioning groove (301), a sliding rod (302) is slidably connected to one side of the surface of the positioning groove (301), a supporting rod (303) is installed on the surface of the sliding rod (302), a collar (304) is installed on one side of the surface of the supporting rod (303), a push rod (305) is movably connected to one side of the surface of the positioning groove (301), a push block (306) is installed on one side of the surface of the push rod (305), an adapter (307) is installed at the bottom of one side of the surface of the push block (306), a rotating rod (308) is fixedly sleeved on one side of the surface of the adapter (307), a drag block (309) is fixedly installed on the surface of the rotating rod (308), and the surface of the supporting rod (303) is movably connected to the docking member (209) through the adjustment plate (203).

5. The CNC lathe with anti-breakage workpiece according to claim 4, characterized in that: A groove is provided at the center of the bottom surface of the collar (304). The adapter (307) pushes the push block (306) to slide through the push rod (305) and contacts the adapter (307), so that the rotating rod (308) rotates to drive the drag block (309) to lift upward and engage with the surface of the groove.

6. The CNC lathe with anti-breakage workpiece according to claim 3, characterized in that: The clamping plate (111) slides in correspondence with the pressing block (202) through the ball screw (105) and the slider (106), and is in pressing contact with the surface of the pressing block (202) through the hydraulic cylinder (112) and the hydraulic telescopic rod (113).

7. The CNC lathe with anti-breakage workpiece according to claim 4, characterized in that: The sleeve ring (304) pushes the slide rod (302) to slide and adjust on the surface of the positioning groove (301) through the docking member (209), and simultaneously allows the push rod (305) to slide and adjust the push block (306).

8. The CNC lathe with anti-breakage workpiece according to claim 3, characterized in that: The limiting clamping ring (206) is movably clamped to one side of the surface of the boring shaft (207) through the sleeve connecting rod (204) and the fixed clamping ring (208).

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