Cutting machine for machining automobile parts

Abstract

The invention relates to the technical field of cutting machines, and discloses an automobile part machining cutting machine which comprises a cutting angle change type control mechanism and a thread type cutting position adjusting mechanism. The movable disc is fixedly installed on the inner rotating ball body, the vertical movable frame is fixedly installed on the top of the movable disc, the horizontal threaded rod can drive the vertical movable frame to move directionally during rotation, and the limiting sliding rod can prevent the movable disc from angle change relative to the horizontal threaded rod. According to the cutting machine for machining the automobile parts, by means of the multi-space-angle rotation capacity of an inner rotating ball body in a hollow ring body, a rotating disc cutter can generate a larger-range cutting angle relative to the parts, so that the applicability of the cutting machine in the cutting angle is improved, in addition, the device achieves the cutting angle locking function through liquid pressure, and the cutting efficiency is improved. And a stable work control function is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machines, specifically a cutting machine for processing automotive parts. Background Art

[0002] With the development of modern mechanical processing industry, the requirements for the quality and precision of cutting are continuously increasing, and the requirements for improving production efficiency, reducing production costs, and having a highly intelligent automatic cutting function are also on the rise. The development of numerical control cutting machines must meet the requirements of the development of modern mechanical processing industry. Cutting machines are divided into flame cutting machines, plasma cutting machines, laser cutting machines, water cutting machines, etc.

[0003] For example, the Chinese patent with the publication number "CN220805648U" discloses "a cutting machine for processing automotive interior parts". Its main structure includes a dust suction mechanism, a cutting mechanism, and a clamping mechanism. The cutting mechanism is located above the dust suction mechanism, and the clamping mechanism is located above the cutting mechanism. The dust suction mechanism includes a workbench, and a dust suction hood is fixedly connected to the upper surface of the workbench. The rear end of the dust suction hood is fixedly communicated with a dust suction pipe, the lower end of the dust suction pipe is fixedly communicated with a dust suction pump, the left side of the dust suction pump is fixedly communicated with a dust discharge pipe, and the left side of the dust discharge pipe extends into the collection box. In this cutting machine for processing automotive interior parts, the dust suction pump creates negative pressure inside the dust suction pipe, and absorbs the dust generated during cutting through the dust suction pipe. The collection hood blocks the dust, preventing the dust from flying around, reducing the impact of dust on the health of workers. The dust is transported to the collection box through the dust discharge pipe, and the collection box collects the dust. Finally, the box door is opened to take out the collection box for cleaning.

[0004] However, when this cutting machine for processing automotive interior parts cuts components, since the rotating disc cutter can only generate displacement in the longitudinal angle, its cutting angle can only be longitudinal cutting, resulting in great limitations in the cutting angle of this device. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cutting machine for processing automotive parts. By utilizing the ability of the inner rotating sphere to rotate in multiple spatial angles in the hollow ring body, the rotating disc cutter can generate a larger range of cutting angles relative to the component, so as to improve the applicability of the device in the cutting angle. In addition, the device realizes the locking function of the cutting angle through liquid pressure and has a stable working control function, thus solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solutions: A cutting machine for machining automotive parts, including a cutting motor with a rotating disc cutter fixedly installed at the end of the rotor, further including a cutting angle variable control mechanism, which internally has a hollow ring body fixedly installed directly above the cutting motor and in a hollow state, an inner rotating sphere rotatably installed at the center of the hollow ring body, and an annular air film capable of locking the inner rotating sphere under liquid pressure; and a threaded cutting position adjustment mechanism, which internally has a movable disc fixedly installed on the inner rotating sphere, a vertical movable frame fixedly installed on the top of the movable disc, a horizontal threaded rod capable of driving the vertical movable frame to move directionally when rotating, and a limiting slide rod capable of preventing the movable disc from changing its angle relative to the horizontal threaded rod.

[0007] Preferably, the cutting angle variable control mechanism includes a top fixing plate. A plurality of fan-shaped fixing plates integrally formed with the outer circumferential surface of the hollow ring body are provided, and the fan-shaped fixing plates and the top fixing plate are fixedly connected by longitudinal support rods. A spherical cavity with both ends open is provided at the center of the hollow ring body. An annular liquid flow cavity with an open inner side is provided inside the hollow ring body. The top fixing plate is provided with an annular air film at the intersection of the annular liquid flow cavity and the spherical cavity. A first liquid injection channel integrally formed with the outer circumferential surface of the hollow ring body and used for injecting liquid into the annular liquid flow cavity is provided. An inner rotating sphere capable of rotating is placed inside the spherical cavity of the hollow ring body. A hollow structure with both ends open is provided at the center of the inner rotating sphere. A plate fixing groove is provided at the horizontal center of the hollow structure of the inner rotating sphere. Limiting ring structures integrally formed with the outer periphery of the bottom port and the top port of the inner rotating sphere are provided.

[0008] Preferably, the structural radius of the outer circumferential surface of the inner rotating sphere matches the structural radius of the spherical cavity. The depth of the spherical cavity is less than the structural radius of the outer circumferential surface of the inner rotating sphere. The thickness of the inner rotating sphere is greater than the depth of the spherical cavity, and the structural diameter of the outer circumferential surface of the limiting ring structure is greater than the diameters of both ends of the spherical cavity.

[0009] Preferably, the threaded cutting position adjusting mechanism includes a movable disk fixedly installed at the edge part in the fixed groove of the plate body and two opposing fixed vertical plates. A rotatable horizontal rotating shaft is respectively installed at the center of each of the fixed vertical plates through bearings. A horizontal threaded rod is fixedly installed at the opposing ends of the two horizontal rotating shafts. A limiting slide rod is fixedly installed directly below the horizontal threaded rod on the two fixed vertical plates. A driving motor is fixedly installed at the end of one of the fixed vertical plates through a motor fixed housing. The end of the rotor of the driving motor is fixedly connected to the end of one of the horizontal rotating shafts. An internal threaded hole installed on the rod body of the horizontal threaded rod through a threaded structure is arranged inside the vertical movable frame. A limiting slide hole capable of sliding along the limiting slide rod is arranged inside the vertical movable frame. The bottom end of the vertical movable frame is fixedly installed at the center of the upper surface of the movable disk.

[0010] Preferably, the threaded structure includes an internal threaded structure arranged in the internal threaded hole and an external threaded structure arranged on the rod body of the horizontal threaded rod, and the internal threaded structure matches the external threaded structure.

[0011] Preferably, the cross-sectional structure of the limiting slide hole is the same as that of the limiting slide rod, both are polygonal structures, and the cross-sectional dimension of the limiting slide hole matches the cross-sectional dimension of the limiting slide rod.

[0012] Preferably, a hydraulic telescopic connection mechanism is further included. It internally includes a longitudinal hollow housing fixedly installed at the bottom end of the top fixed plate and in a hollow state inside, a piston plate placed inside the longitudinal hollow housing and capable of moving downward when subjected to liquid pressure, a spiral spring installed inside the longitudinal hollow housing and capable of enabling the piston plate to drive the weighing object to reset upward, and a motor fixed sleeve capable of moving along with the piston plate and driving the cutting motor to move longitudinally.

[0013] Preferably, the hydraulic telescopic connecting mechanism includes a longitudinal telescopic rod. At the top of the longitudinal hollow housing, there is a bottom fixing plate that is integrally structured with it and fixedly installed at the bottom end of the top fixing plate. Inside the longitudinal hollow housing, there is a longitudinal component moving cavity. At the top of the longitudinal hollow housing located in the longitudinal component moving cavity, there is a liquid limiting flow cavity, and the structural radius of the liquid limiting flow cavity is smaller than the structural radius of the longitudinal component moving cavity. On the circumferential side surface of the longitudinal hollow housing, there is a liquid flow channel connecting the external space and the side surface of the liquid limiting flow cavity. At the bottom end of the longitudinal hollow housing, there is a rod body perforation connecting the space below it and the bottom end of the longitudinal component moving cavity. Inside the longitudinal hollow housing located in the longitudinal component moving cavity, there is a piston plate that can move axially along the longitudinal component moving cavity. At the bottom end of the piston plate, there is a longitudinal telescopic rod fixedly installed through the rod body perforation. At the bottom end of the longitudinal telescopic rod, there is a motor fixing sleeve that is integrally structured with it and fixedly installed at the body of the cutting motor. Around the rod body of the longitudinal telescopic rod located inside the longitudinal component moving cavity, there is a spiral spring sleeved.

[0014] Preferably, the structural shape of the cross-section of the rod body perforation is the same as that of the cross-section of the longitudinal telescopic rod, both being a polygonal structure, and the structural dimensions of the cross-section of the rod body perforation match the structural dimensions of the cross-section of the longitudinal telescopic rod.

[0015] Preferably, the bottom end of the spiral spring is fixedly installed on the bottom surface of the structure of the longitudinal component moving cavity, and the top end is fixedly installed on the bottom of the piston plate. The initial elastic strength of the spiral spring is sufficient to make the cutting motor at the highest movable point.

[0016] Compared with the prior art, the present invention provides a cutting machine for processing automotive parts, having the following beneficial effects: Utilizing the ability of the inner rotating sphere to rotate at multiple spatial angles in the hollow ring body, the rotating disc cutter can generate a larger range of cutting angles relative to the part, so as to improve the applicability of the equipment in terms of cutting angles. In addition, this device realizes the locking function of the cutting angle through liquid pressure and has a stable working control function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a three-dimensional sectional view of the present invention; Figure 3 is a three-dimensional view of the cutting angle variable control mechanism in the present invention; Figure 4 is a three-dimensional sectional view of the cutting angle variable control mechanism in the present invention; Figure 5Isometric view of the threaded cutting position adjustment mechanism in the present invention; Figure 6 Isometric sectional view of the threaded cutting position adjustment mechanism in the present invention; Figure 7 Isometric view of the hydraulic telescopic connection mechanism in the present invention; Figure 8 Isometric sectional view of the hydraulic telescopic connection mechanism in the present invention.

[0018] Wherein: 1. Cutting motor; 2. Rotary disk cutter; 3. Cutting angle change control mechanism; 31. Top fixing plate; 32. Longitudinal support rod; 33. Hollow ring body; 34. Sector fixing plate; 35. Spherical cavity; 36. Annular liquid flow cavity; 37. Annular air film; 38. First liquid injection channel; 39. Inner rotating sphere; 310. Hollow structure; 311. Plate fixing groove; 312. Limit ring structure; 4. Threaded cutting position adjustment mechanism; 41. Movable disk; 42. Vertical movable frame; 43. Internal thread hole; 44. Limit sliding hole; 45. Fixed vertical plate; 46. Horizontal rotating shaft; 47. Motor fixing housing; 48. Driving motor; 49. Horizontal threaded rod; 410. Limit sliding rod; 5. Hydraulic telescopic connection mechanism; 51. Longitudinal hollow housing; 52. Bottom fixing plate; 53. Longitudinal component movable cavity; 54. Liquid limit flow cavity; 55. Liquid flow channel; 56. Piston plate; 57. Longitudinal telescopic rod; 58. Rod body perforation; 59. Helical spring; 510. Motor fixing sleeve. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1 and Figure 2 , a cutting machine for automobile part processing, including a cutting motor 1 with a rotary disk cutter 2 fixedly installed at the end of the rotor. First, fixedly install the fixed vertical plate 45 on the fixed frame, then fixedly install the automobile part on the workbench through a clamping device, and take a hydraulic system capable of controlling the liquid pressure, and connect the liquid circuits of the hydraulic system to the liquid flow channel 55 and the first liquid injection channel 38 respectively through pipelines.

[0021] In order to achieve a larger cutting angle range, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up a cutting angle change control mechanism 3, which internally has a hollow ring body 33 fixedly installed directly above the cutting motor 1 and in a hollow state, an inner rotating sphere 39 rotatably installed at the center of the hollow ring body 33, and an annular air film 37 that can lock the inner rotating sphere 39 under liquid pressure. When the cutting angle needs to be adjusted, control the cutting motor 1, and then manually rotate the cutting motor 1 to rotate the cutting angle of the rotary disk cutter 2 to the required position. Then, inject liquid into the inner part of the annular liquid flow chamber 36 through the liquid system. Under the action of the liquid pressure, the annular air film 37 will deform inward until the inner surface of the annular air film 37 wraps the outer surface of the inner rotating sphere 39 with a certain pressure, achieving the locking effect on the inner rotating sphere 39, and further restricting the rotary disk cutter 2 at the adjusted angle to achieve a larger range of cutting angles.

[0022] For the specific structure of the cutting angle change control mechanism 3, please refer to Figure 3 and Figure 4 , including a top fixing plate 31. A plurality of fan-shaped fixing plates 34 integrally formed with it are provided on the outer circumferential surface of the hollow ring body 33. The fan-shaped fixing plates 34 and the top fixing plate 31 are fixedly connected by longitudinal support rods 32. A spherical cavity 35 with both ends open is provided at the center of the hollow ring body 33. An annular liquid flow chamber 36 with an open inner side is provided inside the hollow ring body 33. The top fixing plate 31 is provided with an annular air film 37 at the intersection of the annular liquid flow chamber 36 and the spherical cavity 35. A first liquid injection channel 38 integrally formed with it and used to inject liquid into the inner part of the annular liquid flow chamber 36 is provided on the outer circumferential surface of the hollow ring body 33. A rotatable inner rotating sphere 39 is placed inside the spherical cavity 35 of the hollow ring body 33. A hollow structure 310 with both ends open is provided at the center of the inner rotating sphere 39. A plate fixing groove 311 is provided at the horizontal center of the inner rotating sphere 39 in the hollow structure 310. Limiting ring structures 312 integrally formed with it are provided around the outer periphery of the bottom port and the top port of the inner rotating sphere 39. The structural radius of the outer circumferential surface of the inner rotating sphere 39 matches the structural radius of the spherical cavity 35. The depth of the spherical cavity 35 is less than the structural radius of the outer circumferential surface of the inner rotating sphere 39. The thickness of the inner rotating sphere 39 is greater than the depth of the spherical cavity 35, and the structural diameter of the outer circumferential surface of the limiting ring structure 312 is greater than the calibers at both ends of the spherical cavity 35.

[0023] To achieve the function of adjusting the cutting position, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a threaded cutting position adjustment mechanism 4, which internally has a movable disk 41 fixedly installed on the inner rotating sphere 39, a vertical movable frame 42 fixedly installed on the top of the movable disk 41, a horizontal threaded rod 49 that can drive the vertical movable frame 42 to move directionally during rotation, and a limiting slide rod 410 that can prevent the movable disk 41 from changing its angle relative to the horizontal threaded rod 49. When the driving motor 48 is started, its rotor will rotate the horizontal threaded rod 49 directionally. Due to the threaded structure connection and the existence of the limiting slide rod 410, the vertical movable frame 42 will indirectly drive the cutting motor 1 to displace until the rotary disk cutter 2 moves to the required position, thus realizing the function of adjusting the cutting position.

[0024] For the specific structure of the threaded cutting position adjustment mechanism 4, please refer to Figure 5 and Figure 6 , including a movable disk 41 fixedly installed at the edge part in the plate fixing groove 311 and two opposing fixed vertical plates 45. A rotatable horizontal rotating shaft 46 is respectively installed at the center of each of the fixed vertical plates 45 through bearings. A horizontal threaded rod 49 is fixedly installed at the opposing ends of the two horizontal rotating shafts 46. A limiting slide rod 410 is fixedly installed directly below the horizontal threaded rod 49 on the two fixed vertical plates 45. A driving motor 48 is fixedly installed at the end of one of the fixed vertical plates 45 through a motor fixing housing 47. The end of the rotor of the driving motor 48 is fixedly connected to the end of one of the horizontal rotating shafts 46. An internal threaded hole 43 installed on the rod body of the horizontal threaded rod 49 through a threaded structure is provided inside the vertical movable frame 42. A limiting slide hole 44 that can slide along the limiting slide rod 410 is provided inside the vertical movable frame 42. The bottom end of the vertical movable frame 42 is fixedly installed at the center of the upper surface of the movable disk 41. The threaded structure includes an internal threaded structure provided in the internal threaded hole 43 and an external threaded structure provided on the rod body of the horizontal threaded rod 49, and the internal threaded structure matches the external threaded structure. The structural shape of the cross-section of the limiting slide hole 44 is the same as that of the cross-section of the limiting slide rod 410, both being polygonal structures, and the structural size of the cross-section of the limiting slide hole 44 matches the structural size of the cross-section of the limiting slide rod 410.

[0025] To achieve the stretching application function required for cutting, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8, it is necessary to set up a hydraulic telescopic connection mechanism 5, which is internally provided with a longitudinal hollow housing 51 fixedly installed at the bottom end of the top fixed plate 31 and hollow inside, a piston plate 56 placed inside the longitudinal hollow housing 51 and capable of moving downward when subjected to liquid pressure, a spiral spring 59 installed inside the longitudinal hollow housing 51 and capable of enabling the piston plate 56 to drive the weighing object to reset upward, and a motor fixing sleeve 510 capable of moving longitudinally with the piston plate 56 and driving the cutting motor 1. By injecting liquid into the liquid flow channel 55 through the hydraulic system, the liquid will exert pressure on the piston plate 56. By controlling the liquid pressure, the piston plate 56 can be made to drive the cutting motor 1 to move downward, causing the rotary disk cutter 2 to move downward and cut the component. After the cutting is completed, the liquid is made to flow back into the hydraulic system. Under the action of the spiral spring 59, the cutting motor 1 and the rotary disk cutter 2 will reset upward, thus realizing the telescopic application function required for cutting.

[0026] For the specific structure of the hydraulic telescopic connection mechanism 5, please refer to Figure 7 and Figure 8 , including a longitudinal telescopic rod 57. The top end of the longitudinal hollow housing 51 is provided with a bottom fixed plate 52 which is integrally structured with it and fixedly installed at the bottom end of the top fixed plate 31. The inside of the longitudinal hollow housing 51 is provided with a longitudinal component activity cavity 53. The longitudinal hollow housing 51 is provided with a liquid limit flow cavity 54 at the top of the longitudinal component activity cavity 53, and the structural radius of the liquid limit flow cavity 54 is smaller than the structural radius of the longitudinal component activity cavity 53. The circumferential side surface of the longitudinal hollow housing 51 is provided with a liquid flow channel 55 communicating the external space and the side surface of the liquid limit flow cavity 54. The bottom end of the longitudinal hollow housing 51 is provided with a rod body perforation 58 communicating the space below it and the bottom end of the longitudinal component activity cavity 53. Inside the longitudinal hollow housing 51 and located in the longitudinal component activity cavity 53, a piston plate 56 capable of moving axially along the longitudinal component activity cavity 53 is placed. The bottom end of the piston plate 56 is fixedly installed with a longitudinal telescopic rod 57 passing through the rod body perforation 58. The bottom end of the longitudinal telescopic rod 57 is provided with a motor fixing sleeve 510 which is integrally structured with it and fixedly installed at the body of the cutting motor 1. A spiral spring 59 is sleeved around the outer periphery of the rod of the longitudinal telescopic rod 57 inside the longitudinal component activity cavity 53. The structural shape of the cross-section of the rod body perforation 58 is the same as that of the cross-section of the longitudinal telescopic rod 57, both being polygonal structures, and the structural dimensions of the cross-section of the rod body perforation 58 match the structural dimensions of the cross-section of the longitudinal telescopic rod 57. The bottom end of the spiral spring 59 is fixedly installed on the bottom surface of the bottom structure of the longitudinal component activity cavity 53, and the top end is fixedly installed on the bottom of the piston plate 56. The initial elastic strength of the spiral spring 59 is sufficient to make the cutting motor 1 at the highest movable point.

[0027] During use, first, fixedly install the fixed vertical plate 45 on the fixing frame, and then fixedly install the automotive parts on the workbench surface through the clamping device. Select a hydraulic system capable of controlling the liquid pressure, and dock the liquid circuit of the hydraulic system with the liquid flow channel 55 and the first liquid injection channel 38 through pipes respectively. Start the driving motor 48, and its rotor will rotate the horizontal threaded rod 49 directionally. Due to the connection of the threaded structure and the existence of the limit slide rod 410, the vertical movable frame 42 will indirectly drive the cutting motor 1 to displace until the rotary disk cutter 2 moves to the required position. When the cutting angle needs to be adjusted, control the cutting motor 1, and then manually rotate the cutting motor 1 to rotate the cutting angle of the rotary disk cutter 2 to the required position. Then, inject liquid into the interior of the annular liquid flow chamber 36 through the liquid system. Under the action of the liquid pressure, the annular air film 37 will deform inward until the inner surface of the annular air film 37 wraps the outer surface of the inner rotating sphere 39 with a certain pressure, achieving the locking effect on the inner rotating sphere 39, and further restricting the rotary disk cutter 2 at the adjusted angle. Inject liquid into the liquid flow channel 55 through the hydraulic system, and the liquid will generate pressure on the piston plate 56. By controlling the liquid pressure, the piston plate 56 can drive the cutting motor 1 to move downward, causing the rotary disk cutter 2 to move downward and cut the parts. When the cutting is completed, make the liquid flow back into the hydraulic system. Under the action of the spiral spring 59, the cutting motor 1 and the rotary disk cutter 2 will reset upward.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting machine for processing automotive parts, comprising a cutting motor (1) with a rotary disc cutter (2) fixedly installed at the end of a rotor, characterized in that: Further included is a cutting angle change type control mechanism (3), inside which there is a hollow ring body (33) fixedly installed directly above the cutting motor (1) and in a hollow state, an inner rotating sphere (39) rotatably installed at the center of the hollow ring body (33), and an annular air film (37) capable of locking the inner rotating sphere (39) under liquid pressure; and a threaded cutting position adjustment mechanism (4), inside which there is a movable disk (41) fixedly installed on the inner rotating sphere (39), a vertical movable frame (42) fixedly installed on the top of the movable disk (41), a horizontal threaded rod (49) capable of driving the vertical movable frame (42) to move directionally during rotation, and a limiting slide rod (410) capable of preventing the movable disk (41) from changing its angle relative to the horizontal threaded rod (49).

2. The cutting machine for processing automotive parts according to claim 1, characterized in that: The cutting angle change type control mechanism (3) includes a top fixing plate (31). A plurality of sector fixing plates (34) integrally formed with the outer circumferential surface of the hollow ring body (33) are provided. The sector fixing plates (34) and the top fixing plate (31) are fixedly connected by longitudinal support rods (32). A spherical cavity (35) with both ends open is provided at the center of the hollow ring body (33). An annular liquid flow cavity (36) with an open inner side is provided inside the hollow ring body (33). The top fixing plate (31) is provided with an annular air film (37) at the intersection of the annular liquid flow cavity (36) and the spherical cavity (35). A first liquid injection channel (38) integrally formed with the outer circumferential surface of the hollow ring body (33) and used for injecting liquid into the annular liquid flow cavity (36) is provided. An inner rotating sphere (39) capable of rotating is placed inside the spherical cavity (35) of the hollow ring body (33). A hollow structure (310) with both ends open is provided at the center of the inner rotating sphere (39). A plate fixing groove (311) is provided at the horizontal center of the hollow structure (310) of the inner rotating sphere (39). Limiting ring structures (312) integrally formed with the outer periphery of the bottom port and the top port of the inner rotating sphere (39) are provided.

3. The cutting machine for processing automotive parts according to claim 2, characterized in that: The structural radius of the outer circumferential surface of the inner rotating sphere (39) matches the structural radius of the spherical cavity (35). The depth of the spherical cavity (35) is less than the structural radius of the outer circumferential surface of the inner rotating sphere (39). The thickness of the inner rotating sphere (39) is greater than the depth of the spherical cavity (35). And the structural diameter of the outer circumferential surface of the limiting ring structure (312) is greater than the diameters of both ends of the spherical cavity (35).

4. The cutting machine for processing automotive parts according to claim 3, wherein: The threaded cutting position adjusting mechanism (4) includes a movable disk (41) fixedly installed at the edge part in the plate fixing groove (311) and two opposing fixed vertical plates (45). A rotatable horizontal rotating shaft (46) is respectively installed at the center of each fixed vertical plate (45) through a bearing. A horizontal threaded rod (49) is fixedly installed at the opposing ends of the two horizontal rotating shafts (46). A limiting slide rod (410) is fixedly installed directly below the horizontal threaded rod (49) on the two fixed vertical plates (45). A driving motor (48) is fixedly installed at the end of one of the fixed vertical plates (45) through a motor fixed housing (47). The end of the rotor of the driving motor (48) is fixedly connected to the end of one of the horizontal rotating shafts (46). An internal threaded hole (43) installed on the rod body of the horizontal threaded rod (49) through a threaded structure is arranged inside the vertical movable frame (42). A limiting slide hole (44) capable of sliding along the limiting slide rod (410) is arranged inside the vertical movable frame (42). The bottom end of the vertical movable frame (42) is fixedly installed at the center of the upper surface of the movable disk (41).

5. The cutting machine for processing automotive parts according to claim 4, characterized in that: The threaded structure includes an internal threaded structure arranged in the internal threaded hole (43) and an external threaded structure arranged on the rod body of the horizontal threaded rod (49), and the internal threaded structure matches the external threaded structure.

6. The cutting machine for processing automotive parts according to claim 5, wherein: The structural shape of the cross-section of the limiting slide hole (44) is the same as that of the cross-section of the limiting slide rod (410), both being polygonal structures, and the structural dimensions of the cross-section of the limiting slide hole (44) match the structural dimensions of the cross-section of the limiting slide rod (410).

7. The cutting machine for processing automotive parts according to claim 6, characterized in that: It further includes a hydraulic telescopic connection mechanism (5), which internally has a longitudinal hollow housing (51) fixedly installed at the bottom end of the top fixing plate (31) and in a hollow state inside, a piston plate (56) placed inside the longitudinal hollow housing (51) and capable of moving downward when subjected to liquid pressure, a spiral spring (59) installed inside the longitudinal hollow housing (51) and capable of enabling the piston plate (56) to drive the weighing object to reset upward, and a motor fixing sleeve (510) capable of moving along with the piston plate (56) and driving the cutting motor (1) to move longitudinally.

8. The cutting machine for processing automotive parts according to claim 7, characterized in that: The hydraulic telescopic connecting mechanism (5) includes a longitudinal telescopic rod (57). At the top of the longitudinal hollow housing (51), there is a bottom fixing plate (52) which is of an integral structure with it and fixedly installed at the bottom end of the top fixing plate (31). Inside the longitudinal hollow housing (51), there is a longitudinal component moving cavity (53). At the top of the longitudinal hollow housing (51) and located in the longitudinal component moving cavity (53), there is a liquid limiting flow cavity (54), and the structural radius of the liquid limiting flow cavity (54) is smaller than that of the longitudinal component moving cavity (53). On the circumferential side of the longitudinal hollow housing (51), there is a liquid flow channel (55) connecting the outside space and the side of the liquid limiting flow cavity (54). At the bottom end of the longitudinal hollow housing (51), there is a rod body perforation (58) connecting the space below it and the bottom end of the longitudinal component moving cavity (53). Inside the longitudinal hollow housing (51) and located in the longitudinal component moving cavity (53), there is a piston plate (56) that can move axially along the longitudinal component moving cavity (53). At the bottom end of the piston plate (56), there is a longitudinal telescopic rod (57) that penetrates through the rod body perforation (58). At the bottom end of the longitudinal telescopic rod (57), there is a motor fixing sleeve (510) which is of an integral structure with it and fixedly installed at the body of the cutting motor (1). Outside the rod body of the longitudinal telescopic rod (57) and located inside the longitudinal component moving cavity (53), there is a spiral spring (59) sleeved around it.

9. The cutting machine for processing automotive parts according to claim 8, characterized in that: The structural shape of the cross-section of the rod body perforation (58) is the same as that of the cross-section of the longitudinal telescopic rod (57), both being a polygonal structure, and the structural dimensions of the cross-section of the rod body perforation (58) match those of the cross-section of the longitudinal telescopic rod (57).

10. The cutting machine for machining automotive parts according to claim 9, wherein: The bottom end of the spiral spring (59) is fixedly installed on the bottom surface of the structure of the longitudinal component moving cavity (53), and the top end is fixedly installed at the bottom of the piston plate (56). The initial elastic strength of the spiral spring (59) is sufficient to make the cutting motor (1) at the highest movable point.

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