Titanium alloy precision workpiece cutting positioning device

Abstract

The invention relates to the technical field of titanium alloy precision workpiece machining, in particular to a titanium alloy precision workpiece cutting and positioning device which comprises a carrying table, a side plate is fixedly installed on one side of the top of the carrying table, a rotating disc is rotatably installed on one side wall of the side plate, and three evenly-distributed alternate positioning assemblies are installed on the outer wall of the rotating disc. The positioning device is used for alternately positioning annular workpieces inside and outside. A first hollow shaft is installed on the other side wall of the side plate in a penetrating mode, and one end of the first hollow shaft is fixedly connected with the rotating disc. Through the alternate positioning assembly, after a workpiece is clamped, positioned and cut, a positioning rod can be rapidly replaced to support and position the inner wall of the ring body, so that the outer wall of the ring body is released, the machining position is rapidly replaced, operation is convenient and rapid, the cutting efficiency is improved, and the machining efficiency is improved. And the positioning rod is driven by the adjusting assembly to rotate by a certain angle, so that the use uniformity of the positioning rod is ensured.

Description

Technical Field

[0001] This invention relates to the field of precision machining technology for titanium alloy workpieces, specifically a precision cutting and positioning device for titanium alloy workpieces. Background Technology

[0002] Titanium alloy precision parts are high-performance components made from titanium alloy as the base material through high-precision machining processes. They are widely used in fields with stringent requirements for material properties and dimensional accuracy. Titanium alloy itself has a perfect balance between high strength and low density, weighing only 60% of steel, yet its strength is comparable. It also has excellent corrosion resistance, can work stably for a long time in seawater, acid and alkaline environments and high temperatures, and has excellent biocompatibility, so it will not cause rejection reactions in the human body.

[0003] Existing precision titanium alloy workpieces require cutting during manufacturing. Positioning is crucial during this process. Current positioning devices utilize clamps for clamping, but machining not only the inner but also the outer wall of the workpiece is involved. Clamping the workpiece on the outer wall can obstruct machining, necessitating the replacement of internal support clamps, which is cumbersome. Therefore, we propose a precision titanium alloy workpiece cutting and positioning device. Summary of the Invention

[0004] The purpose of this invention is to provide a precision cutting and positioning device for titanium alloy workpieces, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision cutting and positioning device for titanium alloy workpieces, comprising a platform, a side plate fixedly installed on one side of the top of the platform, a turntable rotatably installed on one side wall of the side plate, and three evenly distributed alternating positioning components installed on the outer wall of the turntable for alternating positioning of the annular workpiece inside and outside. A first hollow shaft is installed through the other side wall of the side plate. One end of the first hollow shaft is fixedly connected to the turntable. A first gear is fixedly fitted on the outer wall of the first hollow shaft. A second gear meshes with the outer wall of the first gear. A first servo motor is provided on one side of the second gear. The outer end of the drive shaft of the first servo motor is fixedly connected to the second gear.

[0006] By adopting the above technical solution, the annular workpiece is first positioned using three alternating positioning components. Then, the first servo motor drives the turntable to rotate, thereby rotating the annular workpiece. The rotating annular workpiece is then cut by a cutting machine. The initial positioning clamps the workpiece from its outer wall, allowing the inner wall to be cut during the cutting process. After the inner wall is cut, the positioning components are used to quickly change the positioning position, achieving internal support positioning of the inner wall, and then the outer wall is cut. The operation is convenient and quick, which helps to improve the efficiency of the cutting operation.

[0007] In a preferred embodiment of the present invention, the turntable has a hollow structure, and strip-shaped holes are provided on all four sides of the outer wall of the turntable. A first lead screw is rotatably installed in the strip-shaped holes. A matching lead screw slider is fitted on the outer wall of the first lead screw. The outer wall of the lead screw slider is connected to an alternating positioning assembly. The inner end of the first lead screw passes through the inner cavity of the turntable and is fixedly connected to a first bevel gear. A second hollow shaft is rotatably installed in the middle of the inner cavity of the turntable. A second bevel gear is fixedly fitted on the outer wall of the second hollow shaft. The second bevel gear meshes with three first bevel gears. A drive assembly is connected to the second hollow shaft. When positioning the workpiece, the second hollow shaft is driven to rotate by the drive assembly, which in turn drives the three first bevel gears to rotate, thereby causing the first lead screw to rotate and drive the lead screw slider to move. When moving inward, the alternating positioning assembly moves inward, thereby clamping the outer wall of the ring. Conversely, when moving outward, it supports and positions the inner wall of the ring.

[0008] In a preferred embodiment of the present invention, the drive assembly includes a third gear, the outer wall of the third gear is fixedly sleeved on the outer wall of the second hollow shaft, a fourth gear meshes with the outer wall of the third gear, a second servo motor is provided on one side of the fourth gear, the outer end of the drive shaft of the second servo motor is fixedly connected to the fourth gear, and the second servo motor is fixedly connected to the inner wall of the turntable. The second servo motor drives the fourth gear to rotate, which in turn drives the third gear to rotate, which in turn drives the second hollow shaft to rotate, indirectly driving the alternating positioning component to adjust its position to adapt to the ring size.

[0009] In a preferred embodiment of the present invention, an end pipe is fixedly installed in the middle of the outer wall of the turntable, and a plurality of evenly distributed air outlet holes are opened on the outer wall of the end pipe. One end of the second hollow shaft passes through the turntable and is connected to the end pipe, and the other end of the second hollow shaft is fixedly connected to the first hollow shaft. The outer end of the first hollow shaft is connected to a high-pressure air supply pipe through a rotary joint. High-pressure gas can be supplied into the first hollow shaft through the high-pressure gas supply pipe, then enters the second hollow shaft, then enters the end pipe, and finally the gas is discharged through the gas outlet, so that the gas can be blown towards the ring body, thereby helping to cool the ring body during the processing and forming a high-pressure air curtain parallel to the surface of the turntable, which helps to blow away the debris flying towards the turntable, thus preventing the debris from entering the strip hole and forming a protection.

[0010] In a preferred embodiment of the present invention, the alternating positioning assembly includes a fixed shell, which is fixedly connected to a lead screw and a slider. Positioning rods are provided on both sides of the inner cavity of the fixed shell, and the positioning rods movably pass through the fixed shell. A movable block is rotatably connected to the inner end of each positioning rod. A third servo motor is fixedly installed on both sides of one side wall of the inner cavity of the fixed shell. A second lead screw is fixedly connected to the outer end of the drive shaft of the third servo motor. A suitable threaded sleeve is fitted onto the outer wall of the second lead screw, and the threaded sleeve passes through the movable block and is fixedly connected to it. The outer end of the second lead screw is rotatably connected to the inner wall of the fixed shell. One of the third servo motors drives the second lead screw to rotate, which in turn drives the lead sleeve to rotate, causing one of the positioning rods to extend outward. When the positioning rod on the inside extends, the other positioning rod is retracted, which can achieve the internal support and positioning of the ring body from the inside. Similarly, by alternating the extension of the positioning rods, the ring body can be clamped from the outside. Changing the clamping method is convenient and quick, which helps to improve the efficiency of operation.

[0011] In a preferred embodiment of the present invention, the outer wall of the positioning rod is provided with anti-slip texture. The anti-slip texture prevents relative sliding between the positioning rod and the ring body when positioning the positioning rod, increases friction, improves stability, and thus ensures the accuracy of the cutting process.

[0012] In a preferred embodiment of the present invention, an adjustment assembly is installed on one side wall of the movable block. The adjustment assembly includes a housing, on which one side wall of the movable block is fixedly installed. A short shaft is rotatably installed in the inner cavity of the housing. One end of the short shaft movably passes through the housing and the movable block and is fixedly connected to a positioning rod. A worm gear is fixedly fitted on the outer wall of the short shaft. A worm is meshed on the outer wall of the worm gear. One end of the worm is rotatably connected to the inner wall of the housing. A stepper motor is fixedly installed on one side wall of the housing. The drive shaft of the stepper motor passes through the housing and is fixedly connected to one end of the worm. After the positioning rod retracts after use, a stepper motor drives the worm gear to rotate by a certain angle, which in turn drives the worm wheel to rotate by a certain angle, thereby driving the short shaft and the positioning rod to rotate by a certain angle. This adjusts the position of the positioning rod's outer wall corresponding to the ring body, so that when it is extended for use again, the contact position between the positioning rod and the ring body can be changed. This prevents the positioning rod from partially positioning the ring body during long-term use, thus avoiding excessive wear and tear that could render the entire positioning rod unusable and indirectly extending its service life.

[0013] In a preferred embodiment of the present invention, a pressure switch is fixedly installed on the outer wall of the housing; The pressure switch and the stepper motor are electrically connected, so that when the positioning rod retracts, the pressure switch presses against the inner wall of the fixed housing, thereby automatically starting the stepper motor to drive the positioning rod to rotate.

[0014] In a preferred embodiment of the present invention, the movable block is attached to the inner wall of the fixed shell, which can ensure the stability of the movable block's movement.

[0015] In a preferred embodiment of the present invention, mounting holes are provided at the four corners of the top of the platform, which facilitates the installation and fixation of the entire device.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The titanium alloy precision workpiece cutting and positioning device of this application, through alternating positioning components, can quickly change the positioning rod to support and position the inner wall of the ring after the workpiece is clamped and positioned for cutting, thereby releasing the outer wall of the ring and realizing a quick change of the processing position. Moreover, it is convenient and quick to operate, which helps to improve the efficiency of cutting. When the positioning rod is alternately replaced, the retracted positioning rod can be rotated by the adjustment component when the pressure switch is triggered. This changes the contact position with the ring body when it is used again, which helps to avoid excessive local wear on the positioning rod after long-term use, ensures the uniformity of the positioning rod's use, and prevents the positioning rod from deforming due to long-term local pressure, thus extending the service life of the positioning rod. High-pressure gas can be introduced into the first hollow shaft through the high-pressure air pipe, and then enter the end tube through the second hollow shaft. The high-pressure gas is then evenly discharged through the air outlet holes evenly distributed on the outer wall of the end tube, so that the gas can be blown towards the ring body, thereby helping to cool the ring body during the processing and forming a high-pressure air curtain parallel to the surface of the turntable. This helps to blow away debris flying towards the turntable, thus preventing debris from entering the strip hole and forming a protective barrier. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the first overall structure of the titanium alloy precision workpiece cutting and positioning device of the present invention; Figure 2 This is a schematic diagram of the second overall structure of the titanium alloy precision workpiece cutting and positioning device of the present invention; Figure 3 This is a schematic diagram of the inner cavity structure of the turntable of the precision titanium alloy workpiece cutting and positioning device of the present invention; Figure 4 This is a schematic diagram of the alternating positioning component structure of the precision titanium alloy workpiece cutting and positioning device of the present invention; Figure 5 This is a schematic diagram of the adjustment component structure of the titanium alloy precision workpiece cutting and positioning device of the present invention.

[0018] In the picture: 1. Platform; 11. Mounting holes; 12. Side plates; 2. Turntable; 21. End tube; 22. Air outlet; 23. First hollow shaft; 24. First gear; 25. Second gear; 26. First servo motor; 27. Rotary joint; 28. High-pressure air supply pipe; 3. Fixed housing; 31. Positioning rod; 32. Movable block; 33. Third servo motor; 34. Second lead screw; 35. Lead sleeve; 4. First lead screw; 41. Lead screw slider; 42. First bevel gear; 43. Second bevel gear; 44. Second hollow shaft; 45. Third gear; 46. Fourth gear; 47. Second servo motor; 5. Housing; 51. Short shaft; 52. Worm gear; 53. Worm; 54. Stepper motor; 55. Pressure switch. Detailed Implementation

[0019] Please see Figure 1-5 The present invention provides a technical solution: a precision cutting and positioning device for titanium alloy workpieces, including a platform 1, a side plate 12 fixedly installed on one side of the top of the platform 1, a turntable 2 rotatably installed on one side wall of the side plate 12, and three evenly distributed alternating positioning components installed on the outer wall of the turntable 2 for alternating positioning of the inner and outer sides of the annular workpiece. A first hollow shaft 23 is installed through the other side wall of the side plate 12. One end of the first hollow shaft 23 is fixedly connected to the turntable 2. A first gear 24 is fixedly fitted on the outer wall of the first hollow shaft 23. A second gear 25 meshes with the outer wall of the first gear 24. A first servo motor 26 is provided on one side of the second gear 25. The outer end of the drive shaft of the first servo motor 26 is fixedly connected to the second gear 25.

[0020] It should be understood that in actual use, the annular workpiece is first positioned using three alternating positioning components. Then, the first servo motor 26 drives the turntable 2 to rotate, thereby rotating the annular workpiece. The rotating annular workpiece is then cut by a cutting machine. The initial positioning clamps the workpiece from the outer wall, allowing the inner wall of the workpiece to be cut during the cutting process. After the inner wall of the workpiece is cut, the positioning position is quickly changed using the frame positioning components to achieve internal support positioning of the inner wall of the workpiece, allowing the outer wall of the workpiece to be cut again. The operation is convenient and quick, which helps to improve the efficiency of the cutting operation.

[0021] Furthermore, mounting holes 11 are provided at the four corners of the top of the platform 1. The mounting holes 11 facilitate the installation and fixation of the entire device.

[0022] like Figure 1 , Figure 2 as well as Figure 3 As shown, the turntable 2 has a hollow structure. Slotted holes are provided on all four sides of the outer wall of the turntable 2. A first lead screw 4 is rotatably installed inside each slotted hole. A matching lead screw slider 41 is fitted onto the outer wall of the first lead screw 4. The outer wall of the lead screw slider 41 is connected to an alternating positioning assembly. The inner end of the first lead screw 4 penetrates the inner cavity of the turntable 2 and is fixedly connected to a first bevel gear 42. A second hollow shaft 44 is rotatably installed in the middle of the inner cavity of the turntable 2. A second bevel gear 43 is fixedly fitted onto the outer wall of the second hollow shaft 44. The second bevel gear 43 meshes with three first bevel gears 42. A drive assembly is connected to the second hollow shaft 44.

[0023] It should be understood that when positioning the workpiece, the second hollow shaft 44 is driven to rotate by the drive assembly, which in turn enables the second bevel gear 43 to drive the three first bevel gears 42 to rotate, thereby causing the first lead screw 4 to rotate, which in turn drives the lead screw slider 41 to move. When moving inward, it drives the alternating positioning assembly to move inward, thereby achieving clamping of the outer wall of the ring. Conversely, when moving outward, it achieves internal support positioning of the inner wall of the ring.

[0024] Furthermore, the drive assembly includes a third gear 45, the outer wall of the third gear 45 is fixedly sleeved on the outer wall of the second hollow shaft 44, the outer wall of the third gear 45 meshes with a fourth gear 46, a second servo motor 47 is provided on one side of the fourth gear 46, the outer end of the drive shaft of the second servo motor 47 is fixedly connected to the fourth gear 46, and the second servo motor 47 is fixedly connected to the inner wall of the turntable 2.

[0025] It should be understood that in actual use, the second servo motor 47 drives the fourth gear 46 to rotate, which in turn drives the third gear 45 to rotate, which in turn drives the second hollow shaft 44 to rotate, indirectly driving the alternating positioning component to adjust its position to adapt to the ring size.

[0026] Furthermore, an end pipe 21 is fixedly installed in the middle of the outer wall of the turntable 2. The outer wall of the end pipe 21 has multiple evenly distributed air outlets 22. One end of the second hollow shaft 44 passes through the turntable 2 and is connected to the end pipe 21. The other end of the second hollow shaft 44 is fixedly connected to the first hollow shaft 23. The outer end of the first hollow shaft 23 is connected to a high-pressure air supply pipe 28 through a rotary joint 27.

[0027] It should be understood that during use, high-pressure gas can be supplied into the first hollow shaft 23 through the high-pressure gas supply pipe 28, and then the high-pressure gas enters the second hollow shaft 44, then enters the end pipe 21, and finally the gas is discharged through the air outlet 22, so that the gas can be blown towards the ring body, thereby assisting the ring body to cool down during the processing, and forming a high-pressure air curtain parallel to the surface of the turntable 2, which is beneficial to blowing away the debris flying towards the turntable 2, and thus helps to prevent debris from entering the strip hole, forming a protection.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the alternating positioning assembly includes a fixed housing 3, which is fixedly connected to a lead screw and slider 41. Positioning rods 31 are provided on both sides of the inner cavity of the fixed housing 3. The positioning rods 31 movably pass through the fixed housing 3. A movable block 32 is rotatably connected to the inner end of the positioning rod 31. One side wall of the movable block 32 is attached to the inner wall of the fixed housing 3. A third servo motor 33 is fixedly installed on both sides of one side wall of the inner cavity of the fixed housing 3. A second lead screw 34 is fixedly connected to the outer end of the drive shaft of the third servo motor 33. A suitable threaded sleeve 35 is fitted onto the outer wall of the second lead screw 34. The threaded sleeve 35 passes through the movable block 32 and is fixedly connected to it. The outer end of the second lead screw 34 is rotatably connected to the inner wall of the fixed housing 3.

[0029] It should be understood that in actual use, the second lead screw 34 is driven to rotate by one of the third servo motors 33, which in turn drives the lead sleeve 35 to rotate, causing one of the positioning rods 31 to extend outward. When the positioning rod 31 located on the inside extends, the other positioning rod 31 is retracted, which can achieve the internal support and positioning of the ring body from the inside. Similarly, by alternately changing the extension of the positioning rods 31, the ring body can be clamped from the outside. Changing the clamping method is convenient and quick, which helps to improve the efficiency of operation.

[0030] Furthermore, the outer wall of the positioning rod 31 is provided with anti-slip texture. The anti-slip texture prevents relative sliding between the positioning rod 31 and the ring body when positioning the positioning rod 31, increases friction, improves stability, and thus ensures the accuracy of the cutting process.

[0031] Furthermore, an adjustment assembly is installed on one side wall of the movable block 32. The adjustment assembly includes a housing 5, on which one side wall of the movable block 32 is fixedly installed. A short shaft 51 is rotatably installed in the inner cavity of the housing 5. One end of the short shaft 51 movably passes through the housing 5 and the movable block 32 and is fixedly connected to the positioning rod 31. A worm gear 52 is fixedly fitted on the outer wall of the short shaft 51. A worm 53 meshes with the outer wall of the worm gear 52. One end of the worm 53 is rotatably connected to the inner wall of the housing 5. A stepper motor 54 is fixedly installed on one side wall of the housing 5. The drive shaft of the stepper motor 54 passes through the housing 5 and is fixedly connected to one end of the worm 53.

[0032] It should be understood that in actual use, after the positioning rod 31 is retracted after use, the stepper motor 54 drives the worm gear 53 to rotate at a certain angle, thereby driving the worm wheel 52 to rotate at a certain angle, which in turn drives the short shaft 51 and the positioning rod 31 to rotate at a certain angle. This adjusts the position of the outer wall of the positioning rod 31 corresponding to the ring body, so that when it is extended for use again, the contact position between the positioning rod 31 and the ring body can be changed. This prevents the positioning rod 31 from partially positioning the ring body during long-term use, thus avoiding excessive wear and tear that could render the positioning rod 31 unusable and indirectly extending its service life.

[0033] It is worth mentioning that a pressure switch 55 is fixedly installed on the outer wall of the housing 5. It should be understood that the pressure switch 55 is electrically connected to the stepper motor 54, so that when the positioning rod 31 retracts, the pressure switch 55 presses against the inner wall of the fixed housing 3, thereby automatically starting the stepper motor 54 to drive the positioning rod 31 to rotate.

[0034] Furthermore, the components included in the titanium alloy precision workpiece cutting and positioning device of the present invention are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power components, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle below, and the electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a well-known technology in the field. The following mainly introduces the working principle and process, and will not explain the electrical control.

Claims

1. A precision cutting and positioning device for titanium alloy workpieces, comprising a stage (1), characterized in that: A side plate (12) is fixedly installed on one side of the top of the platform (1), and a turntable (2) is rotatably installed on one side wall of the side plate (12). Three evenly distributed alternating positioning components are installed on the outer wall of the turntable (2) for alternating positioning of the annular workpiece inside and outside. A first hollow shaft (23) is installed through the other side wall of the side plate (12). One end of the first hollow shaft (23) is fixedly connected to the turntable (2). A first gear (24) is fixedly fitted on the outer wall of the first hollow shaft (23). A second gear (25) meshes with the outer wall of the first gear (24). A first servo motor (26) is provided on one side of the second gear (25). The outer end of the drive shaft of the first servo motor (26) is fixedly connected to the second gear (25).

2. The precision cutting and positioning device for titanium alloy workpieces according to claim 1, characterized in that: The turntable (2) is a hollow structure. The four sides of the outer wall of the turntable (2) are provided with strip holes. A first lead screw (4) is rotatably installed in the strip holes. A suitable lead screw slider (41) is fitted on the outer wall of the first lead screw (4). The outer wall of the lead screw slider (41) is connected to the alternating positioning component. The inner end of the first lead screw (4) passes through the inner cavity of the turntable (2) and is fixedly connected to a first bevel gear (42). A second hollow shaft (44) is rotatably installed in the middle of the inner cavity of the turntable (2). A second bevel gear (43) is fixedly fitted on the outer wall of the second hollow shaft (44). The second bevel gear (43) meshes with three first bevel gears (42). A drive component is connected to the second hollow shaft (44).

3. The precision cutting and positioning device for titanium alloy workpieces according to claim 2, characterized in that: The drive assembly includes a third gear (45), the outer wall of which is fixedly sleeved on the outer wall of the second hollow shaft (44), and a fourth gear (46) meshing with the outer wall of the third gear (45). A second servo motor (47) is provided on one side of the fourth gear (46), the outer end of the drive shaft of the second servo motor (47) is fixedly connected to the fourth gear (46), and the second servo motor (47) is fixedly connected to the inner wall of the turntable (2).

4. The precision cutting and positioning device for titanium alloy workpieces according to claim 3, characterized in that: An end pipe (21) is fixedly installed in the middle of the outer wall of the turntable (2). The outer wall of the end pipe (21) is provided with a plurality of evenly distributed air outlet holes (22). One end of the second hollow shaft (44) passes through the turntable (2) and is connected to the end pipe (21). The other end of the second hollow shaft (44) is fixedly connected to the first hollow shaft (23). The outer end of the first hollow shaft (23) is connected to a high-pressure air supply pipe (28) through a rotary joint (27).

5. The precision cutting and positioning device for titanium alloy workpieces according to claim 4, characterized in that: The alternating positioning assembly includes a fixed shell (3), which is fixedly connected to a lead screw slider (41). Positioning rods (31) are provided on both sides of the inner cavity of the fixed shell (3). The positioning rods (31) movably pass through the fixed shell (3). The inner end of the positioning rods (31) is rotatably connected to a movable block (32). A third servo motor (33) is fixedly installed on both sides of one side wall of the inner cavity of the fixed shell (3). The outer end of the drive shaft of the third servo motor (33) is fixedly connected to a second lead screw (34). The outer wall of the second lead screw (34) is fitted with a matching thread sleeve (35). The thread sleeve (35) passes through the movable block (32) and is fixedly connected to the movable block (32). The outer end of the second lead screw (34) is rotatably connected to the inner wall of the fixed shell (3).

6. The precision cutting and positioning device for titanium alloy workpieces according to claim 5, characterized in that: The outer wall of the positioning rod (31) is provided with anti-slip texture.

7. The precision cutting and positioning device for titanium alloy workpieces according to claim 5, characterized in that: An adjustment assembly is installed on one side wall of the movable block (32). The adjustment assembly includes a housing (5). The housing (5) is fixedly installed with one side wall of the movable block (32). A short shaft (51) is rotatably installed in the inner cavity of the housing (5). One end of the short shaft (51) movably passes through the housing (5) and the movable block (32) and is fixedly connected to the positioning rod (31). A worm gear (52) is fixedly fitted on the outer wall of the short shaft (51). A worm (53) meshes with the outer wall of the worm gear (52). One end of the worm (53) is rotatably connected to the inner wall of the housing (5). A stepper motor (54) is fixedly installed on one side wall of the housing (5). The drive shaft of the stepper motor (54) passes through the housing (5) and is fixedly connected to one end of the worm (53).

8. The precision cutting and positioning device for titanium alloy workpieces according to claim 7, characterized in that: A pressure switch (55) is fixedly installed on the outer wall of the housing (5).

9. The precision cutting and positioning device for titanium alloy workpieces according to claim 7, characterized in that: The movable block (32) is attached to the inner wall of the fixed shell (3).

10. A precision cutting and positioning device for titanium alloy workpieces according to claim 1, characterized in that: Mounting holes (11) are provided at the four corners of the top of the platform (1).

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