A machine tool apparatus

Abstract

The present application belongs to the technical field of machine tool, and particularly relates to a machine tool device, which comprises an outer slide rail, a clamping auxiliary unit, an inner slide rail and a first motor. The present application controls the relative position of two clamping auxiliary units installed on the inner slide rail on the outer slide rail by adjusting the position of the inner slide rail on the outer slide rail. When adjusting, the position of the two clamping auxiliary units can be determined according to the length of the part. When the part is relatively long, the distance between the clamping auxiliary unit close to the main machine box and the main machine box also increases correspondingly. Similarly, when the part is relatively short, the distance between the clamping auxiliary unit close to the main machine box and the main machine box also decreases correspondingly. In this way, the part can be stably fixed under the joint action of the claw disc and the two clamping auxiliary units during the clamping process, and the part will not be inclined due to uneven distribution of the clamped points.

Description

Technical Field

[0001] This invention belongs to the field of machine tool technology, and in particular relates to a machine tool device. Background Technology

[0002] Lathes are one of the most widely used machine tools in machinery manufacturing and repair shops. A lathe is a machine tool primarily used to machine rotating workpieces using a cutting tool. Drills, reamers, taps, dies, and knurling tools can also be used on a lathe for corresponding machining operations. Lathes are mainly used for machining shafts, discs, sleeves, and other workpieces with rotating surfaces.

[0003] When using a lathe, the workpiece needs to be clamped on it. During clamping, it is necessary to ensure that the axis of rotation of the workpiece is collinear with the axis of rotation of the lathe's spindle sleeve, which requires centering adjustment of the workpiece. Centering adjustment is a crucial step, as it directly affects the final turning accuracy. Therefore, after each centering and clamping, it is necessary to check whether the workpiece is aligned using a micrometer. If runout is found during the inspection, it needs to be re-clamped. During re-clamping, for thinner and lighter workpieces, centering can be adjusted manually, which is relatively easy. However, for thicker and heavier workpieces, auxiliary tools such as cranes are required for clamping, adjustment, and disassembly, which is more cumbersome.

[0004] This invention designs a machine tool to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention employs the following technical solutions:

[0006] A machine tool includes an outer slide rail, a clamping auxiliary unit, an inner slide rail, and a first motor. The outer slide rail is oscillatingly mounted on the upper side of the machine tool's main housing. The inner slide rail is slidably mounted inside the outer slide rail. The first motor is fixedly mounted on the outer slide rail and is connected to the inner slide rail via a screw. The first motor can drive the inner slide rail to slide within the outer slide rail. Two clamping auxiliary units are slidably mounted inside the inner slide rail.

[0007] The clamping auxiliary unit includes a second motor, a mounting crossbar, a third motor, a Y-shaped plate, a clamping arc plate, a mounting vertical rod, a first toothed plate, a fourth motor, a telescopic rod, a pressure sensor, a second toothed plate, a second gear, and a third gear. The mounting crossbar is slidably mounted within an inner slide rail, on which a second motor capable of controlling the sliding of the mounting crossbar is mounted. A hollow mounting vertical rod is fixedly mounted on the lower side of the inner slide rail, and a telescopic rod is installed inside the vertical rod. The telescopic rod consists of a telescopic inner rod, a telescopic outer sleeve, and a first spring. The telescopic outer sleeve is fixedly mounted on the inner end face of the mounting vertical rod, and the upper end of the telescopic inner rod is slidably mounted within the telescopic outer sleeve. A first spring is installed between the upper end of the telescopic inner rod and the telescopic outer sleeve. A pressure sensor is fixedly mounted on the lower end of the telescopic inner rod. The Y-shaped plate is non-fork type. One end is slidably installed inside the mounting vertical rod, and a fourth motor capable of controlling the up-and-down sliding of the Y-shaped plate is installed inside the mounting horizontal rod; a first toothed plate and a second toothed plate are slidably installed inside the Y-shaped plate, with the upper end of the second toothed plate protruding from the Y-shaped plate and aligned with a pressure sensor; an arc-shaped top plate is fixedly installed at the lower end of the first toothed plate protruding from the Y-shaped plate, and a second spring is installed between the first toothed plate and the Y-shaped plate; the first toothed plate and the second toothed plate are connected by a coaxial second gear and a third gear, the radius of which is twice the radius of the second gear, the second gear meshes with the second toothed plate, and the third gear meshes with the first toothed plate; two clamping arc plates are symmetrically slidably installed on the fork-shaped head of the Y-shaped plate, and a third motor capable of controlling the two clamping arc plates to slide at the same speed is fixedly installed on the Y-shaped plate.

[0008] As a preferred embodiment, a fixing rod is fixedly installed on the upper side of the machine tool main body, and a rotating component is rotatably installed on the upper end of the fixing rod; the outer slide rail is fixedly installed on the rotating component.

[0009] As a preferred embodiment, a positioning plate is fixedly installed on the rotating component, and the positioning plate has a circular hole; the limiting plate is an arc-shaped plate, and the limiting plate has multiple evenly distributed circular through holes. The limiting plate is fixedly installed on the upper side of the machine tool main body box by two symmetrically distributed support plates; when viewed from above the machine tool, when the positioning plate swings to be completely aligned with the axis of the machine tool spindle, the circular hole on the positioning plate is aligned with the circular hole in the middle of the limiting plate; a rod is inserted between the positioning plate and the limiting plate.

[0010] The outer slide rail and the positioning plate are distributed 180 degrees circumferentially.

[0011] As a preferred embodiment, a first transmission block is fixedly installed on the upper side of the inner slide rail, and a first threaded rod is fixedly installed on the output shaft of the first motor. The first threaded rod and the first transmission block are connected to each other through a threaded engagement.

[0012] As a preferred embodiment, two strip-shaped sliders are symmetrically fixedly installed on both sides of the mounting bar, and the mounting bar is slidably installed in the inner slide rail via the two strip-shaped sliders.

[0013] As a preferred embodiment, the second threaded rod is rotatably mounted on the inner slide rail, and the second threaded rod is connected to the output shaft of the second motor via a first gear transmission; the second transmission block is fixedly mounted on the mounting crossbar, and the second transmission block and the second threaded rod are connected to each other via a threaded engagement.

[0014] As a preferred embodiment, a fourth motor is fixedly installed on the inner side of the mounting crossbar, and a winding wheel is fixedly installed on the output shaft of the fourth motor. A pull rope is wound on the winding wheel; the outer end of the pull rope is guided by the guide wheel and then passes into the mounting vertical bar and is fixedly connected to the Y-shaped plate.

[0015] As a preferred embodiment, the fork-shaped end of the Y-shaped plate has two second mounting grooves and two arc-shaped sliding grooves symmetrically opened, and the arc-shaped sliding grooves are connected to the second mounting grooves on the corresponding side.

[0016] The third motor is fixedly installed on the outside of the Y-shaped plate. Two mounting shafts are symmetrically rotated and installed on both sides of the Y-shaped plate. The two mounting shafts are connected to the output shaft of the third motor through synchronous pulleys and synchronous belts. Two fourth gears are fixedly installed on the two mounting shafts and located in the two second mounting slots. Two clamping arc plates are symmetrically slidably installed on both sides of the Y-shaped plate through two arc-shaped sliding grooves. The inner arc surfaces of the two clamping arc plates have teeth, and the two clamping arc plates mesh with the two fourth gears.

[0017] As a preferred embodiment, one end of the non-fork-shaped head of the Y-shaped plate has a first mounting groove, and the second gear and the third gear are coaxially and rotatably mounted in the first mounting groove of the Y-shaped plate.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. This invention controls the relative positions of two clamping auxiliary units mounted on the inner slide rail on the outer slide rail by adjusting the position of the inner slide rail on the outer slide rail. During adjustment, the positions of the two clamping auxiliary units can be determined according to the length of the part. When the part is relatively long, the distance between the clamping auxiliary unit closer to the main unit and the main unit also increases accordingly. Similarly, when the part is relatively short, the distance between the clamping auxiliary unit closer to the main unit and the main unit also decreases accordingly. This ensures that the part can be stably fixed during the clamping process under the combined action of the jaw plate and the two clamping auxiliary units, and will not tilt due to uneven distribution of the clamping points of the part.

[0020] 2. Looking down at the machine tool, when the positioning plate swings to be completely aligned with the machine tool spindle axis, the circular hole on the positioning plate aligns with the central circular hole on the limiting plate. At this point, insert the insertion rod into the circular hole aligned with the limiting plate to limit the orientation of the rotating part. In this state, because the outer slide rail and the positioning plate are distributed at 180 degrees around the rotating part, the outer slide rail and the machine tool spindle axis are completely aligned in the vertical direction. That is, the spindle axis of the part clamped by the two clamping auxiliary units installed on the outer slide rail is completely aligned with the machine tool spindle axis in the vertical direction. In other words, the positioning plate, limiting plate, and insertion rod designed in this invention can align the part clamped on the two clamping auxiliary units with the machine tool spindle axis in the vertical direction.

[0021] 3. After prolonged use, the pull rope may deform and become elongated. During part alignment, the change in the length of the pull rope may cause a deviation between the axis of the aligned part and the axis of the main machine shaft compared to when the pull rope is not elongated, affecting the final machining accuracy. To solve this problem, after a deviation is found between the axis of the aligned part and the axis of the main machine shaft, the second motor is controlled to work. The second motor controls the second transmission block to drive the winding wheel to slide relative to the mounting vertical rod. The pull rope on the winding wheel pulls the Y-shaped plate to move to compensate for the axis deviation caused by the elongation of the pull rope.

[0022] 4. After the part and the machine tool spindle axis are positioned vertically by the limiting plate and the positioning plate, the present invention can determine whether the part and the machine tool spindle axis are collinear by whether the second toothed plate applies pressure to the pressure sensor, that is, whether the part is centered. Compared with the traditional centering of thicker and heavier parts, the reciprocating clamping step is eliminated and the operation is simpler.

[0023] 5. The clamping auxiliary tool designed in this invention can swing relative to the machine tool to meet the clamping requirements of parts placed in different positions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall component appearance.

[0025] Figure 2 This is a schematic diagram of the auxiliary clamping tool.

[0026] Figure 3 This is a schematic diagram of the rotating component installation.

[0027] Figure 4 This is a schematic diagram of the distribution of clamping auxiliary units.

[0028] Figure 5 This is a schematic diagram of the external slide rail structure.

[0029] Figure 6 This is a schematic diagram of the clamping auxiliary unit installation.

[0030] Figure 7 This is a schematic diagram of the inner slide rail installation.

[0031] Figure 8 This is a schematic diagram of the clamping auxiliary unit.

[0032] Figure 9 This is a schematic diagram of the clamping auxiliary unit structure.

[0033] Figure 10 This is a schematic diagram of a Y-shaped plate structure.

[0034] Figure 11 This is a schematic diagram of the installation of the first and second toothed plates.

[0035] Figure 12 This is a schematic diagram of the installation of the clamping arc plate.

[0036] Labels in the diagram: 1. Machine tool; 2. Auxiliary clamping tool; 3. Outer slide rail; 4. Clamping auxiliary unit; 5. Rotating component; 6. Limiting plate; 7. Support plate; 8. Insert rod; 9. Positioning plate; 10. Inner slide rail; 11. First motor; 12. First transmission block; 13. First threaded rod; 14. Second motor; 15. Second transmission block; 16. Mounting crossbar; 17. Third motor; 18. Y-shaped plate; 19. Clamping arc plate; 20. Strip slider; 21. Second threaded rod; 22. First gear; 23. Mounting vertical rod 24. First toothed plate; 25. Pull rope; 26. Winding wheel; 27. Fourth motor; 28. First mounting slot; 29. ​​Second mounting slot; 30. Arc-shaped slide groove; 31. Guide wheel; 32. Telescopic rod; 33. Second toothed plate; 34. Second gear; 35. Third gear; 36. Pressure sensor; 37. Telescopic inner rod; 38. Telescopic outer sleeve; 39. First spring; 40. Arc-shaped top plate; 41. Synchronous belt; 42. Fourth gear; 43. Synchronous pulley; 44. Mounting shaft; 45. Fixing rod; 46. Second spring. Detailed Implementation

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following embodiments and drawings are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0038] A machine tool 1, such as Figure 2 , 3 As shown in Figure 4, it includes an outer slide rail 3, a clamping auxiliary unit 4, a rotating component 5, a limiting plate 6, a support plate 7, an insert rod 8, a positioning plate 9, an inner slide rail 10, a first motor 11, a fixing rod 45, a first transmission block 12, and a first threaded rod 13, wherein... Figure 3 As shown, the limiting plate 6 is an arc-shaped plate with multiple evenly distributed circular through holes, such as... Figure 1As shown, the limiting plate 6 is fixedly installed on the upper side of the main body housing of the machine tool 1 by two symmetrically distributed support plates 7; the fixing rod 45 is fixedly installed on the upper side of the main body housing of the machine tool 1, as shown. Figure 3 As shown, a rotating component 5 is rotatably mounted on the upper end of the fixed rod 45, and a positioning plate 9 is fixedly mounted on the rotating component 5; the positioning plate 9 has a circular hole. Looking down at the machine tool 1, when the positioning plate 9 swings to completely coincide with the spindle axis of the machine tool 1, the circular hole on the positioning plate 9 aligns with the central circular hole on the limiting plate 6; a insertion rod 8 is inserted between the positioning plate 9 and the limiting plate 6; as shown... Figure 2 , 5 As shown, the outer slide rail 3 is fixedly installed on the rotating part 5, and the outer slide rail 3 and the positioning plate 9 are distributed at 180 degrees circumferentially; as Figure 4 As shown, an inner slide rail 10 is slidably installed on the inner side of the outer slide rail 3, as... Figure 7 As shown, a first transmission block 12 is fixedly installed on the upper side of the inner slide rail 10, as... Figure 4 , 6 As shown, the first motor 11 is fixedly mounted on the outer slide rail 3, as... Figure 7 As shown, a first threaded rod 13 is fixedly mounted on the output shaft of the first motor 11, and the first threaded rod 13 is connected to the first transmission block 12 through a threaded engagement; as shown Figure 4 , 6 As shown, two clamping auxiliary units 4 are slidably installed inside the inner slide rail 10.

[0039] Looking down at machine tool 1, when the positioning plate 9 swings to be completely aligned with the spindle axis of machine tool 1, the circular hole on the positioning plate 9 aligns with the central circular hole on the limiting plate 6. At this time, the insert rod 8 is inserted into the circular hole of the positioning plate 9 aligned with the limiting plate 6 to limit the orientation of the rotating part 5. In this state, since the outer slide rail 3 and the positioning plate 9 are distributed at 180 degrees around the rotating part 5, the outer slide rail 3 and the spindle axis of machine tool 1 are completely aligned in the vertical direction. That is, the spindle axis of the part clamped by the two clamping auxiliary units 4 installed on the outer slide rail 3 is completely aligned with the spindle axis of machine tool 1 in the vertical direction. In other words, the present invention, through the designed positioning plate 9, limiting plate 6 and insert rod 8, can align the part clamped on the two clamping auxiliary units 4 with the spindle axis of machine tool 1 in the vertical direction.

[0040] In this invention, the support plate 7, the fixing rod 45 and the main chassis of the machine tool 1 can be fixed by bolts or directly welded by a welding machine.

[0041] The first motor 11 drives the first threaded rod 13 to rotate. The rotation of the first threaded rod 13 causes the first transmission block 12 to slide along the outer slide rail 3. The sliding of the first transmission block 12 causes the inner slide rail 10 to slide. This invention controls the relative position of the two clamping auxiliary units 4 installed on the inner slide rail 10 on the outer slide rail 3 by adjusting the position of the inner slide rail 10 on the outer slide rail 3. During adjustment, the position of the two clamping auxiliary units 4 can be determined according to the length of the part. When the part is relatively long, the distance between the clamping auxiliary unit 4 on the side closer to the main unit box and the main unit box also increases accordingly. Similarly, when the part is relatively short, the distance between the clamping auxiliary unit 4 on the side closer to the main unit box and the main unit box also decreases accordingly. This ensures that the part can be stably fixed during the clamping process under the combined action of the claw plate and the two clamping auxiliary units 4, and will not tilt due to uneven distribution of the clamping points of the part.

[0042] like Figure 8 , 9 As shown, the clamping auxiliary unit 4 includes a second motor 14, a second transmission block 15, a mounting crossbar 16, a third motor 17, a Y-shaped plate 18, a clamping arc plate 19, a strip slider 20, a second threaded rod 21, a first gear 22, a mounting vertical rod 23, a first toothed plate 24, a pull rope 25, a winding wheel 26, a fourth motor 27, a guide wheel 31, a telescopic rod 32, a second toothed plate 33, a second gear 34, a third gear 35, a pressure sensor 36, an arc-shaped top plate 40, a synchronous belt 41, a fourth gear 42, a synchronous pulley 43, and a mounting shaft 44, wherein... Figure 8 As shown, two strip-shaped sliders 20 are symmetrically fixedly installed on both sides of the mounting bar 16, as follows: Figure 4 , 6 As shown, the mounting crossbar 16 is slidably mounted inside the inner slide rail 10 via two strip sliders 20; the second motor 14 is fixedly mounted on the inner slide rail 10, and the second threaded rod 21 is rotatably mounted on the inner slide rail 10, as shown. Figure 8 As shown, the second threaded rod 21 is connected to the output shaft of the second motor 14 via a first gear 22; the second transmission block 15 is fixedly mounted on the mounting crossbar 16, and the second transmission block 15 and the second threaded rod 21 are connected to each other via a threaded engagement; as shown... Figure 9 As shown, a fourth motor 27 is fixedly installed on the inner side of the mounting crossbar 16, as... Figure 9 , 11 As shown, a winding wheel 26 is fixedly mounted on the output shaft of the fourth motor 27, and a pull rope 25 is wound on the winding wheel 26; as Figure 9 As shown, the mounting rod 23 is fixedly installed on the lower side of the inner slide rail 10. The mounting rod 23 has a hollow structure, and the outer end of the pull rope 25 passes through the guide wheel 31 and then enters the mounting rod 23; the telescopic rod 32 is fixedly installed inside the mounting rod 23, as shown. Figure 11As shown, the telescopic rod 32 consists of a telescopic inner rod 37, a telescopic outer sleeve 38, and a first spring 39. The telescopic outer sleeve 38 is fixedly installed on the inner end face of the mounting vertical rod 23. The upper end of the telescopic inner rod 37 is slidably installed inside the telescopic outer sleeve 38. The first spring 39 is installed between the upper end of the telescopic inner rod 37 and the telescopic outer sleeve 38. A pressure sensor 36 is fixedly installed on the lower end of the telescopic inner rod 37. Figure 10 As shown, the fork-shaped end of the Y-shaped plate 18 has two symmetrically opened second mounting grooves 29 and two arc-shaped sliding grooves 30, and the arc-shaped sliding grooves 30 communicate with the second mounting grooves 29 on the corresponding side; the other end of the Y-shaped plate 18 has a first mounting groove 28; as shown Figure 9 As shown, the non-fork-shaped end of the Y-shaped plate 18 is slidably installed inside the mounting vertical rod 23 and fixedly connected to the pull rope 25; as Figure 9 , 11 As shown, the second gear 34 and the third gear 35 are coaxially rotatably mounted in the first mounting groove 28 of the Y-shaped plate 18, and the radius of the third gear 35 is twice the radius of the second gear 34; the second toothed plate 33 is slidably mounted in the Y-shaped plate 18, and the upper end of the second toothed plate 33 protrudes from the Y-shaped plate 18 to align with the pressure sensor 36, and the second gear 34 meshes with the second toothed plate 33; the first toothed plate 24 is slidably mounted in the Y-shaped plate 18, and the lower end of the first toothed plate 24 protrudes from the Y-shaped plate 18 and is fixedly mounted with an arc-shaped top plate 40, and a second spring 46 is installed between the first toothed plate 24 and the Y-shaped plate 18; Figure 8 , 12 As shown, the third motor 17 is fixedly installed on the outside of the Y-shaped plate 18, and the two mounting shafts 44 are symmetrically rotated and installed on both sides of the Y-shaped plate 18. The two mounting shafts 44 are connected to the output shaft of the third motor 17 through a synchronous pulley 43 and a synchronous belt 41. The two fourth gears 42 are fixedly installed on the two mounting shafts 44 and located in the two second mounting slots 29. The two clamping arc plates 19 are symmetrically slidably installed on both sides of the Y-shaped plate 18 through two arc-shaped sliding grooves 30. The inner arc surfaces of the two clamping arc plates 19 have teeth, and the two clamping arc plates 19 mesh with the two fourth gears 42.

[0043] The second motor 14 drives the second threaded rod 21 to rotate via the first gear 22. The rotation of the second threaded rod 21 causes the second transmission block 15 to slide, and the sliding of the second transmission block 15 causes the mounting crossbar 16 to slide along the inner slide rail 10. The sliding of the mounting crossbar 16 causes the fourth motor 27 and the winding wheel 26 installed inside it to slide. The sliding of the winding wheel 26 pulls the Y-shaped plate 18 relative to the mounting vertical rod 23 via the pull rope 25. After long-term use, the pull rope 25 may deform and be stretched. When aligning parts, the change in the length of the pull rope 25 may cause a deviation between the axis of the aligned part and the axis of the main machine shaft compared to when the pull rope 25 is not stretched, affecting the final turning accuracy. To solve this problem, after a deviation is found between the axis of the aligned part and the axis of the main machine shaft, the second motor 14 is controlled to work, so that the second motor 14 controls the winding wheel 26 to slide relative to the mounting vertical rod 23. The pull rope 25 on the winding wheel 26 pulls the Y-shaped plate 18 to move to compensate for the axis deviation caused by the stretching of the pull rope 25.

[0044] This invention assumes the part radius is R. When the part is clamped on the jaw plate and perfectly aligned, i.e., the part axis is collinear with the machine tool 1 spindle axis, the relative positions of the components in the clamping auxiliary unit 4 are such that when the part is removed, the first toothed plate 24 and the second toothed plate 33 move downward under the action of the second spring 46. When the highest point of the inner arc surface of the arc-shaped top plate 40 moves down to the original lowest point of the part, the distance between the second toothed plate 33 and the pressure sensor 36 is R. Thus, when clamping the part, if the distance between the part axis and the spindle axis is L1, then when clamping the part, the Y-shaped plate 18 only needs to move a distance of (L1+R) relative to the mounting vertical rod 23 to achieve clamping. After the arc plate 19 slides out, it is fully inserted into the lower side of the part, that is, the upper end of the second toothed plate 33 moves (L1+R) distance relative to the pressure sensor 36. During the insertion process, the arc-shaped top plate 40 is pressed up by the part by a distance of 2R. Under the action of the second gear 34 and the third gear 35, the second toothed plate 33 moves up by R. At this time, the distance between the upper end of the second toothed plate 33 and the pressure sensor 36 is L1, which is the same as the distance between the part axis and the spindle axis. Therefore, after the control rope 25 pulls the Y-shaped plate 18 to move up relative to the mounting vertical rod 23, when the upper end of the second toothed plate 33 contacts and engages with the pressure sensor 36, the axis of the part is also collinear with the spindle axis of the machine tool 1. If there is a gap at the junction of the lowermost part of the part on the clamping arc plate 19 and the clamping arc plate 19, it can be finely adjusted by controlling the second transmission block 15 to drive the winding wheel 26 to slide through the second motor 14.

[0045] After the part is positioned vertically and vertically by the limiting plate 6 and the positioning plate 9, the present invention can determine whether the part and the spindle axis of the machine tool 1 are collinear by whether the second toothed plate 33 applies pressure to the pressure sensor 36, that is, whether the part is centered. Compared with the traditional centering of thicker and heavier parts, the reciprocating clamping step is eliminated, and the operation is simpler.

[0046] When the fourth motor 27 is working, it can drive the winding wheel 26 to rotate. The rotation of the winding wheel 26 pulls the pull rope 25, and the pull rope 25 pulls the Y-shaped plate 18 to move.

[0047] When the third motor 17 is working, it can drive the two fourth gears 42 to rotate through the synchronous pulley 43 and the synchronous belt 41. The rotation of the fourth gears 42 causes the two clamping arc plates 19 to slide.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

[0049] Implementation: When using the auxiliary clamping tool 2 designed in this invention, manually move the outer slide rail 3 to the position of the part. Then, control the fourth motor 27 to rotate the winding wheel 26, release the pull rope 25, and lower the Y-shaped plate 18, moving the clamping arc plate 19 to the part. Control the third motor 17 to drive the two fourth gears 42 to rotate through the synchronous pulley 43 and synchronous belt 41. The rotation of the fourth gears 42 causes the two clamping arc plates 19 to slide and insert into the lower side of the part, clamping the part. After the part is clamped on the clamping auxiliary unit 4, move the outer slide rail 3. This causes the outer slide rail 3 to rotate relative to the fixed axis. When the circular hole on the positioning plate 9 aligns with the central circular hole on the limiting plate 6, the positioning plate 9 is fixed to the limiting plate 6 by the insert rod 8. At this time, the axis of the part is completely coincident with the axis of the machine tool 1 spindle in the vertical direction. Then, the fourth motor 27 is controlled to work, causing the winding wheel 26 to rotate, the pull rope 25 to wind, and the Y-shaped plate 18 to move upward relative to the mounting vertical rod 23. The part is driven to move upward. During the upward movement, when the upper end of the second toothed plate 33 contacts and engages with the pressure sensor 36, the axis of the part is also collinear with the axis of the machine tool 1 spindle. At this time, the part is centered and can be clamped and fixed.

Claims

1. A machine tool device, characterized in that: It includes an outer slide rail, a clamping auxiliary unit, an inner slide rail, and a first motor. The outer slide rail is oscillatingly mounted on the upper side of the machine tool main body box. The inner slide rail is slidably mounted inside the outer slide rail. The first motor is fixedly mounted on the outer slide rail and is connected to the inner slide rail via a screw. The first motor can drive the inner slide rail to slide inside the outer slide rail. Two clamping auxiliary units are slidably mounted inside the inner slide rail. The clamping auxiliary unit includes a second motor, a mounting crossbar, a third motor, a Y-shaped plate, a clamping arc plate, a mounting vertical rod, a first toothed plate, a fourth motor, a telescopic rod, a pressure sensor, a second toothed plate, a second gear, and a third gear. The mounting crossbar is slidably mounted within an inner slide rail, on which a second motor capable of controlling the sliding of the mounting crossbar is mounted. A hollow mounting vertical rod is fixedly mounted on the lower side of the inner slide rail, and a telescopic rod is installed inside the vertical rod. The telescopic rod consists of a telescopic inner rod, a telescopic outer sleeve, and a first spring. The telescopic outer sleeve is fixedly mounted on the inner end face of the mounting vertical rod, and the upper end of the telescopic inner rod is slidably mounted within the telescopic outer sleeve. A first spring is installed between the upper end of the telescopic inner rod and the telescopic outer sleeve. A pressure sensor is fixedly mounted on the lower end of the telescopic inner rod. The Y-shaped plate is non-fork type. One end is slidably installed inside the mounting vertical rod, and a fourth motor capable of controlling the up-and-down sliding of the Y-shaped plate is installed inside the mounting horizontal rod; a first toothed plate and a second toothed plate are slidably installed inside the Y-shaped plate, with the upper end of the second toothed plate protruding from the Y-shaped plate and aligned with a pressure sensor; an arc-shaped top plate is fixedly installed at the lower end of the first toothed plate protruding from the Y-shaped plate, and a second spring is installed between the first toothed plate and the Y-shaped plate; the first toothed plate and the second toothed plate are connected by a coaxial second gear and a third gear, the radius of which is twice the radius of the second gear, the second gear meshes with the second toothed plate, and the third gear meshes with the first toothed plate; two clamping arc plates are symmetrically slidably installed on the fork-shaped head of the Y-shaped plate, and a third motor capable of controlling the two clamping arc plates to slide at the same speed is fixedly installed on the Y-shaped plate.

2. The machine tool equipment according to claim 1, characterized in that: A fixing rod is fixedly installed on the upper side of the machine tool main body box, and a rotating component is rotatably installed on the upper end of the fixing rod; the outer slide rail is fixedly installed on the rotating component.

3. The machine tool equipment according to claim 2, characterized in that: A positioning plate is fixedly installed on the rotating component, and a circular hole is opened on the positioning plate; the limiting plate is an arc-shaped plate, and a plurality of evenly distributed circular through holes are opened on the limiting plate. The limiting plate is fixedly installed on the upper side of the machine tool main body box by two symmetrically distributed support plates; when viewed from above the machine tool, when the positioning plate swings to be completely aligned with the axis of the machine tool spindle, the circular hole on the positioning plate is aligned with the circular hole in the middle of the limiting plate; a plug rod is inserted between the positioning plate and the limiting plate; The outer slide rail and the positioning plate are distributed 180 degrees circumferentially.

4. The machine tool equipment according to claim 1, characterized in that: A first transmission block is fixedly installed on the upper side of the inner slide rail, and a first threaded rod is fixedly installed on the output shaft of the first motor. The first threaded rod and the first transmission block are connected to each other through threaded engagement.

5. A machine tool device according to claim 1, characterized in that: Two strip-shaped sliders are symmetrically fixed on both sides of the mounting bar, and the mounting bar is slidably installed in the inner slide rail via the two strip-shaped sliders.

6. A machine tool device according to claim 1, characterized in that: The second threaded rod is rotatably mounted on the inner slide rail, and the second threaded rod is connected to the output shaft of the second motor through the first gear transmission; the second transmission block is fixedly mounted on the mounting crossbar, and the second transmission block and the second threaded rod are connected to each other through threaded engagement.

7. A machine tool device according to claim 1, characterized in that: A fourth motor is fixedly installed on the inner side of the mounting crossbar. A winding wheel is fixedly installed on the output shaft of the fourth motor, and a pull rope is wound on the winding wheel. The outer end of the pull rope is guided by the guide wheel and then passes into the mounting vertical bar and is fixedly connected to the Y-shaped plate.

8. A machine tool device according to claim 1, characterized in that: The Y-shaped plate has two second mounting slots and two arc-shaped sliding grooves symmetrically opened at its fork-shaped end. The arc-shaped sliding grooves are connected to the second mounting slots on the corresponding side. The third motor is fixedly installed on the outside of the Y-shaped plate. Two mounting shafts are symmetrically rotated and installed on both sides of the Y-shaped plate. The two mounting shafts are connected to the output shaft of the third motor through synchronous pulleys and synchronous belts. Two fourth gears are fixedly installed on the two mounting shafts and located in the two second mounting slots. Two clamping arc plates are symmetrically slidably installed on both sides of the Y-shaped plate through two arc-shaped sliding grooves. The inner arc surfaces of the two clamping arc plates have teeth, and the two clamping arc plates mesh with the two fourth gears.

9. A machine tool device according to claim 1, characterized in that: The Y-shaped plate has a first mounting groove at one non-fork end, and the second gear and the third gear are coaxially and rotatably mounted in the first mounting groove of the Y-shaped plate.

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