A CNC lathe

Abstract

The present invention relates to the field of mechanical processing technology, and specifically to a CNC lathe, including a clamping mechanism, characterized in that the clamping mechanism includes a mounting base, an outer clamping block, a clamping slot, an inner support block and an inner clamping assembly. A clamping slot is provided on the upper surface of the mounting base, and a plurality of clamping slots are evenly distributed along the circumferential direction of the mounting base. The bottom of the outer clamping block is placed inside the clamping slot, and the outer clamping block is slidably connected to the clamping slot. An inner support block is provided in the middle of the mounting base, and the inner support block passes through the mounting base, and the inner support block is slidably connected to the mounting base. The inner clamping assembly is placed in the cavity of the inner support block. The clamping mechanism clamps tubular materials, which can prevent the materials from being deformed by being clamped and from shaking during processing, so that the tubular materials are clamped during processing, thereby improving the qualified rate of products and facilitating the normal processing and use of parts.

Description

Technical Field

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

[0002] A lathe fixture refers to a fixture used on a lathe to process the inner and outer rotating surfaces and end faces of a workpiece. The lathe fixture plays a role in tightening and fixing the workpiece.

[0003] When the lathe processes tubular materials, it clamps the material from the outer wall. If the clamping force is too large, the tubular material will be deformed, affecting the quality and efficiency of the processed products and being unfavorable for the normal processing and use of parts. At the same time, when the tubular material is deformed, it will affect the clamping of the material, and the material will shake during the processing, seriously affecting the product qualification rate. During the processing, a lot of metal scraps will be scattered on the surface of the base, which is troublesome to clean up. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides a CNC lathe, which utilizes a clamping mechanism to clamp tubular materials, thereby preventing the materials from being deformed by being clamped and preventing the materials from shaking during processing, so that the tubular materials can be clamped during the processing, thereby improving the qualified rate of the products and facilitating the normal processing and use of parts. The lathe can gather scattered waste chips together for easy cleaning.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a CNC lathe, including a lathe base, a processing device, a clamping mechanism, a control mechanism and a transmission mechanism, the processing device including an adjusting seat, a slide rail is fixedly provided on the upper surface of the lathe base, the adjusting seat sleeve is arranged on the outer wall of the slide rail, and the adjusting seat is slidably connected to the slide rail, an air pressure plate is fixedly provided on the upper inner side of the adjusting seat, an air bag is provided below the air pressure plate, the lower end of the air pressure plate is contacted with the air bag, the air bag is fixedly connected to the upper surface of the lathe base, a plurality of air holes are provided on the side of the air bag close to the adjusting seat, the control mechanism is fixedly connected to one side of the lathe base, and a control knob is provided on the front side of the control mechanism, the transmission mechanism is placed on the side of the control mechanism close to the processing device, and the clamping mechanism is connected to the side of the transmission mechanism close to the processing device.

[0006] Specifically, the clamping mechanism includes a mounting base, an outer clamping block, a clamping slot, an inner support block and an inner clamping assembly. The upper surface of the mounting base is provided with a clamping slot, and a plurality of clamping slots are evenly distributed along the circumferential direction of the mounting base. The bottom of the outer clamping block is placed inside the clamping slot, and the outer clamping block is slidably connected to the clamping slot. An inner support block is provided in the middle of the mounting base, and the inner support block passes through the mounting base, and the inner support block is slidably connected to the mounting base, and the inner clamping assembly is placed in the inner support block cavity.

[0007] Specifically, the inner tightening assembly includes a conical column, a sloped top plate, a return pressure plate, a spring groove, a first spring and a Z-shaped top block. The conical column is placed in the middle part of the inner support block cavity, a spring groove is provided at the upper end of the conical column, the lower end of the first spring is placed in the spring groove, and the lower end of the first spring is fixedly connected to the spring groove, the first spring is fixedly connected to the top of the inner support block cavity, the side wall of the inner support block is provided with a first rotation groove, and the two side walls of the Z-shaped top block are rotatably connected to the first rotation groove through a rotating shaft, the return pressure plate is fixedly sleeved on the outer wall of the conical column, and the return pressure plate is placed above the end of the Z-shaped top block, the lower surface of the return pressure plate can contact the upper surface of the end of the Z-shaped top block, the sloped top plate is fixedly sleeved on the outer wall of the conical column, the sloped top plate is placed below the end of the Z-shaped top block, and the slope of the sloped top plate can contact the slope of the end of the Z-shaped top block.

[0008] Specifically, the side wall of the inner support block is also provided with a second rotation groove, the second rotation groove is placed below the first rotation groove, a rotation shaft is fixedly connected to the middle of the second rotation groove, a rotating plate is sleeved on the outer wall of the rotating shaft, and the rotating plate is rotatably connected to the rotating shaft, an inclined surface is provided on the inner side of the rotating plate that is compatible with the bottom of the conical column, the inclined surface on the inner side of the rotating plate contacts the bottom of the conical column, and a pressing column is fixedly connected to the outer upper surface of the rotating plate.

[0009] Specifically, the transmission mechanism includes a supporting shell, which is fixedly connected to the mounting base. A connecting hole is provided in the middle of a side of the supporting shell that contacts the mounting base. The bottom of the inner supporting block is placed in the supporting shell, and the inner supporting block is slidably connected to the connecting hole. A pressing column is placed in the supporting shell, and the pressing column can contact the inner wall of the supporting shell on the side close to the mounting base.

[0010] The transmission mechanism further comprises a mounting plate, a sliding column, a support column, a connecting plate, a spur gear, a rotating shaft and a transmission plate. A supporting column is fixedly provided at the bottom of the supporting shell, a sliding groove is provided in the middle of the supporting column, the sliding column passes through the top of the supporting column, and the sliding column is slidably connected to the supporting column, a connecting plate is fixedly provided in the middle of the four supporting columns, a supporting plate is fixedly provided at both ends of the connecting plate, a rotating shaft passes through the supporting plate, and the rotating shaft is rotatably connected to the supporting plate, a spur gear is provided in the middle of the two rotating shafts, the two spur gears are meshed, a transmission plate is connected to both ends of the rotating shaft, and the rotating shaft is fixedly connected to the transmission plate, a protective shell is fixedly connected to the outer wall of the supporting shell, a first motor is fixedly provided between the protective shell and the supporting shell, the output end of the first motor passes through the side wall of the supporting shell, and the output end of the first motor is rotatably connected to the supporting shell, and the output end of the first motor is fixedly connected to the rotating shaft, a sliding shaft is provided at the lower end of the sliding column, the bottom of the transmission plate is U-shaped, the transmission plate is sleeved on the outer surface of the sliding shaft, and the transmission plate is slidably connected to the sliding shaft, the top of the sliding column is fixedly connected to the mounting plate, and the bottom of the inner support block is fixedly connected to the upper surface of the mounting plate.

[0011] Beneficial effects of the present invention:

[0012] (1) In the CNC lathe described in the present invention, the adjustment seat is adjusted to move along the direction of the slide rail before processing. The adjustment seat drives the air pressure plate to move synchronously during the movement. The air pressure plate squeezes the air bag during the movement. The gas in the air bag is ejected from the air hole. The gas blows the debris on the upper surface of the lathe base to one side, which is convenient for cleaning and collecting waste chips, saving time and improving work efficiency.

[0013] (2) The CNC lathe described in the present invention pushes the conical column to move toward the top of the inner support block cavity. During the movement of the conical column, the conical column drives the inclined top plate and the return pressure plate to move synchronously. During the movement of the inclined top plate, the inner end of the Z-shaped top block moves upward. During the upward movement of the Z-shaped top block, the Z-shaped top block rotates along the axis of the middle of the first rotating groove. The outer end of the Z-shaped top block presses against the inner wall of the tubular material to support the tubular material, thereby preventing the material from being deformed by being clamped and preventing the material from shaking during the processing. Further, the tubular material is clamped during the processing, so that the material is fixed firmly during the processing, the qualified rate of the product is improved, and it is beneficial to the normal processing and use of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 The present invention provides a schematic structural diagram of a CNC lathe.

[0016] Figure 2 A three-dimensional diagram of the clamping mechanism provided by the present invention.

[0017] Figure 3 A three-dimensional diagram of the inner support block provided by the present invention.

[0018] Figure 4 The present invention provides Figure 3 AA direction cross-sectional view.

[0019] Figure 5 This is a front sectional view of the transmission mechanism provided by the present invention.

[0020] Figure 6 The present invention provides Figure 5 Cross-sectional view along BB direction.

[0021] Figure 7 A plan view of the transmission plate provided by the present invention.

[0022] In the figure: 1, lathe base; 2, processing device; 21, slide rail; 22, air pressure plate; 23, air bag; 24, air hole; 25, adjustment seat; 3, clamping mechanism; 31, mounting base; 32, outer clamping block; 33, clamping slide; 34, inner support block; 341, first rotating groove; 342, second rotating groove; 35, inner top clamping assembly; 351, conical column; 352, inclined top plate; 353, return pressure plate; 354, spring groove; 355, first A spring; 356, a Z-shaped top block; 36, a rotating plate; 361, a pressing column; 362, a rotating shaft; 4, a control mechanism; 41, a control knob; 5, a transmission mechanism; 51, a supporting shell; 511, a protective shell; 512, a first motor; 52, a connecting hole; 53, a mounting plate; 54, a sliding column; 55, a supporting column; 551, a sliding groove; 56, a connecting plate; 561, a supporting plate; 57, a spur gear; 58, a rotating shaft; 59, a transmission plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 7As shown, a CNC lathe comprises a lathe base 1, a processing device 2, a clamping mechanism 3, a control mechanism 4 and a transmission mechanism 5. The processing device 2 comprises an adjusting seat 25. A slide rail 21 is fixedly provided on the upper surface of the lathe base 1. The adjusting seat 25 is sleeved on the outer wall of the slide rail 21, and the adjusting seat 25 is slidably connected to the slide rail 21. A pressure plate 22 is fixedly provided on the upper inner side of the adjusting seat 25. An air bag 23 is provided below the pressure plate 22. The lower end of the pressure plate 22 is in contact with the air bag 23. The air bag 23 is fixedly connected to the upper surface of the lathe base 1. A plurality of air holes 24 are provided on the side of the air bag 23 close to the adjusting seat 25. The control mechanism 4 is fixedly connected to one side of the lathe base 1, and a control knob 41 is provided on the front side of the control mechanism 4. The transmission mechanism 5 is placed on the side of the control mechanism 4 close to the processing device 2. The clamping mechanism 3 is connected to the side of the transmission mechanism 5 close to the processing device 2. By setting the lathe base The seat 1 provides a support and installation platform for the processing device 2. By setting up the processing device 2, the debris can be concentrated during the material processing process, which is convenient for cleaning and collecting the waste chips. By setting up the clamping mechanism 3 to clamp the tubular material, it can be avoided that the material is deformed by the clamping and the material shakes during the processing. The tubular material is clamped during the processing, which improves the qualified rate of the product and is beneficial to the normal processing and use of the parts. The operation of each component is controlled by the control mechanism 4. Before processing, the adjustment seat 25 is adjusted to move along the direction of the slide rail 21. The adjustment seat 25 drives the air pressure plate 22 to move synchronously during the movement. The air pressure plate 22 squeezes the air bag 23 during the movement. The gas in the air bag 23 is ejected from the air hole 24. The gas blows the debris on the upper surface of the lathe base 1 to one side, which is convenient for cleaning and collecting the waste chips, saving time and improving work efficiency.

[0025] Specifically, the clamping mechanism 3 includes a mounting base 31, an outer clamping block 32, a clamping slot 33, an inner support block 34 and an inner clamping assembly 35. The upper surface of the mounting base 31 is provided with a clamping slot 33, and a plurality of clamping slots 33 are evenly distributed along the circumferential direction of the mounting base 31. The bottom of the outer clamping block 32 is placed inside the clamping slot 33, and the outer clamping block 32 is slidably connected to the clamping slot 33. An inner support block 34 is provided in the middle of the mounting base 31, and the inner support block 34 passes through the mounting base 31, and the inner support block 34 is slidably connected to the mounting base 31, and the inner clamping assembly 35 is placed in the cavity of the inner support block 34. First, the tubular processing material is placed between the four outer clamping blocks 32, and the four outer clamping blocks 32 are controlled by the control knob 41 to slide along the clamping slot 33 toward the middle of the mounting base 31, so as to clamp the tubular material and put it in a clamping state, thereby realizing external clamping of the tubular material.

[0026] Specifically, the inner tightening assembly 35 includes a conical column 351, a sloped top plate 352, a return pressure plate 353, a spring groove 354, a first spring 355 and a Z-shaped top block 356. The conical column 351 is placed in the middle of the cavity of the inner support block 34. The upper end of the conical column 351 is provided with a spring groove 354. The lower end of the first spring 355 is placed in the spring groove 354, and the lower end of the first spring 355 is fixedly connected to the spring groove 354. The first spring 355 is fixedly connected At the top of the inner support block 34 cavity, the side wall of the inner support block 34 is provided with a first rotation groove 341, and the two side walls of the Z-shaped top block 356 are rotatably connected to the first rotation groove 341 through a rotating shaft. The return pressure plate 353 is fixedly sleeved on the outer wall of the conical column 351, and the return pressure plate 353 is placed above the end of the Z-shaped top block 356. The lower surface of the return pressure plate 353 can contact the upper surface of the end of the Z-shaped top block 356. The inclined top plate 352 is fixedly sleeved on the outer wall of the conical column 351. The outer wall, the inclined top plate 352 is placed below the end of the Z-shaped top block 356, and the inclined surface of the inclined top plate 352 can contact the inclined surface of the end of the Z-shaped top block 356, pushing the conical column 351 to move towards the top direction of the inner support block 34 cavity. During the movement, the conical column 351 drives the inclined top plate 352 and the return pressure plate 353 to move synchronously. During the movement, the inclined top plate 352 pushes the inner end of the Z-shaped top block 356 to move upward. During the upward movement of the Z-shaped top block 356, the Z-shaped top block 356 rotates along the axis direction of the middle part of the first rotating groove 341. The outer end of the Z-shaped top block 356 presses against the inner wall of the tubular material to support the tubular material, avoiding the material from being clamped and deformed, and avoiding the material from shaking during the processing. Further, the tubular material is clamped during the processing, so that the material is fixed and stable during the processing, the qualified rate of the product is improved, and it is beneficial to the normal processing and use of parts.

[0027] Specifically, the side wall of the inner support block 34 is also provided with a second rotating groove 342, and the second rotating groove 342 is placed below the first rotating groove 341. A rotating shaft 362 is fixedly connected to the middle of the second rotating groove 342. The rotating plate 36 is sleeved on the outer wall of the rotating shaft 362, and the rotating plate 36 is rotatably connected to the rotating shaft 362. The inner side of the rotating plate 36 is provided with an inclined surface adapted to the bottom of the conical column 351. The inclined surface on the inner side of the rotating plate 36 contacts the bottom of the conical column 351. A pressing column 361 is fixedly connected to the outer upper surface of the rotating plate 36. The inner support block 34 continues to move, and the pressing column 361 contacts the inner wall of the support shell 51 and squeezes each other. The pressing column 361 squeezes the outer end of the rotating plate 36 to move away from the connecting hole 52. The rotating plate 36 rotates along the rotating shaft 362, and the inner end of the rotating plate 36 presses the lower end of the conical column 351 and pushes the conical column 351 to move toward the top of the cavity of the inner support block 34.

[0028] Specifically, the transmission mechanism 5 includes a support shell 51, which is fixedly connected to the mounting base 31. A connecting hole 52 is provided in the middle of a side of the support shell 51 that contacts the mounting base 31. The bottom of the inner support block 34 is placed in the support shell 51, and the inner support block 34 is slidably connected to the connecting hole 52. A pressing column 361 is placed in the support shell 51. The pressing column 361 can contact the inner wall of the support shell 51 on the side close to the mounting base 31. When the inner support block 34 moves toward the connecting hole 52, the pressing column 361 contacts the inner wall of the support shell 51 and squeezes each other. The pressing column 361 squeezes the outer end of the rotating plate 36 to move away from the connecting hole 52.

[0029] Specifically, the transmission mechanism 5 also includes a mounting plate 53, a sliding column 54, a support column 55, a connecting plate 56, a spur gear 57, a rotating shaft 58 and a transmission plate 59. The support column 55 is fixedly provided at the bottom of the support shell 51, a sliding groove 551 is provided in the middle of the support column 55, the sliding column 54 passes through the top of the support column 55, and the sliding column 54 is slidably connected to the support column 55, a connecting plate 56 is fixedly provided in the middle of the four support columns 55, support plates 561 are fixedly provided at both ends of the connecting plate 56, the rotating shaft 58 passes through the support plate 561, and the rotating shaft 58 is connected to the support column 55. The support plate 561 is rotatably connected, a spur gear 57 is provided in the middle of the two rotating shafts 58, and the two spur gears 57 are meshed. Both ends of the rotating shaft 58 are connected to a transmission plate 59, and the rotating shaft 58 is fixedly connected to the transmission plate 59. The outer wall of the supporting shell 51 is fixedly connected to a protective shell 511, and a first motor 512 is fixedly provided between the protective shell 511 and the supporting shell 51. The output end of the first motor 512 passes through the side wall of the supporting shell 51, and the output end of the first motor 512 is rotatably connected to the supporting shell 51, and the output end of the first motor 512 is rotatably connected to the rotating shell 51. The driving shaft 58 is fixedly connected, the lower end of the sliding column 54 is provided with a sliding shaft, the bottom of the transmission plate 59 is U-shaped, the transmission plate 59 is sleeved on the outer surface of the sliding shaft, and the transmission plate 59 is slidably connected with the sliding shaft, the top of the sliding column 54 is fixedly connected to the mounting plate 53, and the bottom of the inner support block 34 is fixedly connected to the upper surface of the mounting plate 53. The first motor 512 is controlled by the control knob 41 to make the first motor 512 rotate clockwise, the first motor 512 drives the rotating shaft 58 to rotate clockwise, and the rotating shaft 58 drives the spur gear 57 to rotate synchronously during the clockwise rotation. The power is transmitted to another rotating shaft 58 through the spur gear 57. The two rotating shafts 58 simultaneously drive the upper end of the transmission plate 59 to rotate. The other U-shaped end of the transmission plate 59 moves upward. During the upward movement of the U-shaped end of the transmission plate 59, the sliding column 54 is driven to move upward along the direction of the sliding groove 551. During the upward movement of the sliding column 54, the mounting plate 53 is pushed to move upward. The mounting plate 53 moves toward the connecting hole 52. During the movement of the mounting plate 53, the bottom of the inner support block 34 is pushed to move synchronously. During the movement of the inner support block 34, the inner support block 34 enters the tubular material.

[0030] When in use, before processing, the adjustment seat 25 is adjusted to move along the direction of the slide rail 21. The adjustment seat 25 drives the air pressure plate 22 to move synchronously during the movement. The air pressure plate 22 squeezes the air bag 23 during the movement. The gas in the air bag 23 is ejected from the air hole 24. The gas blows the debris on the upper surface of the lathe base 1 to one side, which is convenient for cleaning and collecting waste chips, saving time and improving work efficiency. First, the tubular processing material is placed between the four outer clamping blocks 32, and the four outer clamping blocks 32 are controlled by the control knob 41 to slide along the clamping slide groove 33 toward the middle of the mounting base 31 to clamp the tubular material and put it in a pre-tightened state. At this time, the control knob 41 is used to control the four outer clamping blocks 32 to slide along the clamping slide groove 33 toward the middle of the mounting base 31 to clamp the tubular material. The control knob 41 controls the first motor 512, so that the first motor 512 rotates clockwise, and the first motor 512 drives the rotating shaft 58 to rotate clockwise. The rotating shaft 58 drives the spur gear 57 to rotate synchronously during the clockwise process, and the power is transmitted to the other rotating shaft 58 through the spur gear 57. The two rotating shafts 58 simultaneously drive the upper end of the transmission plate 59 to rotate, and the other U-shaped end of the transmission plate 59 moves upward. During the upward movement of the U-shaped end of the transmission plate 59, the sliding column 54 is driven to move upward along the direction of the sliding groove 551. During the upward movement of the sliding column 54, the mounting plate 53 is pushed to move upward, and the mounting plate 53 moves toward the direction close to the connecting hole 52. During the movement of the mounting plate 53, the bottom of the inner support block 34 is pushed to move synchronously. During the movement of the inner support block 34, the inner support block 34 enters the tubular material. The inner support block 34 continues to move, and the pressing column 361 contacts and squeezes the inner wall of the support shell 51. The pressing column 361 squeezes the outer end of the rotating plate 36 to move away from the connecting hole 52. The rotating plate 36 rotates along the rotating shaft 362. The inner end of the rotating plate 36 presses the lower end of the conical column 351 and pushes the conical column 351 to move toward the top of the cavity of the inner support block 34. During the movement of the conical column 351, the inclined top plate 352 and the return pressure plate 353 are driven to move synchronously. During the movement of plate 352, the inner end of the Z-shaped top block 356 is pushed upward. During the upward movement of the end of the Z-shaped top block 356, the Z-shaped top block 356 rotates along the axis direction of the middle part of the first rotating groove 341. The outer end of the Z-shaped top block 356 presses against the inner wall of the tubular material to support the tubular material, thereby preventing the material from being deformed by being clamped and preventing the material from shaking during the processing. The tubular material is further clamped during the processing, which makes the material fixed and stable during the processing, improves the qualified rate of the product, and is beneficial to the normal processing and use of the parts. The outer clamping block 32 is adjusted again for clamping so that the tubular material is in a state of being fixed.

[0031] 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 to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 the present invention is defined by the attached claims and their equivalents.

Claims

1. A CNC lathe, characterized in that: The invention comprises a lathe base (1), a processing device (2), a clamping mechanism (3), a control mechanism (4) and a transmission mechanism (5), wherein the processing device (2) comprises an adjustment seat (25), a slide rail (21) is fixedly provided on the upper surface of the lathe base (1), the adjustment seat (25) is sleeved on the outer wall of the slide rail (21), and the adjustment seat (25) is slidably connected to the slide rail (21), an air pressure plate (22) is fixedly provided on the upper inner side of the adjustment seat (25), an air bag (23) is provided under the air pressure plate (22), and the air pressure plate (22) is provided with a plurality of air bags. The lower end is arranged in contact with the airbag (23), the airbag (23) is fixedly connected to the upper surface of the lathe base (1), a plurality of air holes (24) are provided on the side of the airbag (23) close to the adjustment seat (25), the control mechanism (4) is fixedly connected to one side of the lathe base (1), and a control knob (41) is provided on the front side of the control mechanism (4), the transmission mechanism (5) is arranged on the side of the control mechanism (4) close to the processing device (2), and the clamping mechanism (3) is connected to the side of the transmission mechanism (5) close to the processing device (2); The clamping mechanism (3) comprises a mounting base (31), an outer clamping block (32), a clamping slot (33), an inner support block (34) and an inner clamping assembly (35); a clamping slot (33) is provided on the upper surface of the mounting base (31); a plurality of clamping slots (33) are evenly distributed along the circumferential direction of the mounting base (31); a bottom of the outer clamping block (32) is placed inside the clamping slot (33); the outer clamping block (32) is slidably connected to the clamping slot (33); an inner support block (34) is provided in the middle of the mounting base (31); the inner support block (34) passes through the mounting base (31); the inner support block (34) is slidably connected to the mounting base (31); and the inner clamping assembly (35) is placed in the cavity of the inner support block (34); The inner tightening assembly (35) comprises a conical column (351), a sloped top plate (352), a return pressure plate (353), a spring groove (354), a first spring (355) and a Z-shaped top block (356); the conical column (351) is placed in the middle of the cavity of the inner support block (34); the upper end of the conical column (351) is provided with a spring groove (354); the lower end of the first spring (355) is placed in the spring groove (354); the lower end of the first spring (355) is fixedly connected to the spring groove (354); the first spring (355) is fixedly connected to the top of the cavity of the inner support block (34); the side wall of the inner support block (34) is provided with a first rotary The rotating groove (341), the two side walls of the Z-shaped top block (356) are rotatably connected to the first rotating groove (341) through a rotating shaft, the return pressure plate (353) is fixedly sleeved on the outer wall of the conical column (351), and the return pressure plate (353) is placed above the end of the Z-shaped top block (356), and the lower surface of the return pressure plate (353) can contact the upper surface of the end of the Z-shaped top block (356), and the inclined top plate (352) is fixedly sleeved on the outer wall of the conical column (351), and the inclined top plate (352) is placed below the end of the Z-shaped top block (356), and the inclined surface of the inclined top plate (352) can contact the inclined surface of the end of the Z-shaped top block (356); The side wall of the inner support block (34) is also provided with a second rotating groove (342), the second rotating groove (342) is placed below the first rotating groove (341), a rotating shaft (362) is fixedly connected to the middle of the second rotating groove (342), a rotating plate (36) is sleeved on the outer wall of the rotating shaft (362), and the rotating plate (36) is rotatably connected to the rotating shaft (362), an inclined surface matching the bottom of the conical column (351) is provided on the inner side of the rotating plate (36), the inclined surface on the inner side of the rotating plate (36) contacts the bottom of the conical column (351), and a pressing column (361) is fixedly connected to the outer upper surface of the rotating plate (36).

2. A CNC lathe according to claim 1, characterized in that: The transmission mechanism (5) comprises a support shell (51), the support shell (51) is fixedly connected to the mounting base (31), a connection hole (52) is provided in the middle of a side of the support shell (51) in contact with the mounting base (31), the bottom of the inner support block (34) is placed in the support shell (51), and the inner support block (34) is slidably connected to the connection hole (52), and a pressing column (361) is placed in the support shell (51), and the pressing column (361) can contact the inner wall of the support shell (51) on the side close to the mounting base (31).

3. A CNC lathe according to claim 2, characterized in that: The transmission mechanism (5) further comprises a mounting plate (53), a sliding column (54), a support column (55), a connecting plate (56), a spur gear (57), a rotating shaft (58) and a transmission plate (59); a support column (55) is fixedly provided at the bottom of the support housing (51); a sliding groove (551) is provided in the middle of the support column (55); the sliding column (54) passes through the top of the support column (55), and the sliding column (54) is slidably connected to the support column (55); a connecting plate (56) is fixedly provided in the middle of the four support columns (55); support plates (561) are fixedly provided at both ends of the connecting plate (56); a rotating shaft (58) passes through the support plate (561), and the rotating shaft (58) is rotatably connected to the support plate (561); a spur gear (57) is provided in the middle of the two rotating shafts (58); the two spur gears (57) are meshed, and both ends of the rotating shaft (58) are connected to the A transmission plate (59) is connected, and the rotating shaft (58) is fixedly connected to the transmission plate (59); a protective shell (511) is fixedly connected to the outer wall of the support shell (51); a first motor (512) is fixedly arranged between the protective shell (511) and the support shell (51); an output end of the first motor (512) passes through the side wall of the support shell (51), and the output end of the first motor (512) is rotationally connected to the support shell (51); the output end of the first motor (512) is fixedly connected to the rotating shaft (58); a sliding shaft is arranged at the lower end of the sliding column (54); the bottom of the transmission plate (59) is U-shaped; the transmission plate (59) is sleeved on the outer surface of the sliding shaft, and the transmission plate (59) is slidably connected to the sliding shaft; the top of the sliding column (54) is fixedly connected to the mounting plate (53); and the bottom of the inner support block (34) is fixedly connected to the upper surface of the mounting plate (53).

Images