A screw press shaft integrated precision machining device

Abstract

The present application relates to the technical field of thread pressing shaft part machining device, in particular to a thread pressing shaft part integrated precision machining device, which comprises a numerical control lathe, a machining structure, a mounting structure, a protection structure, a transfer structure and a feeding structure; the turning tool head and the tapping drill bit are integrated in the same moving seat, the workpiece is clamped once to complete the integrated machining of the external turning and the internal thread tapping, and the production efficiency is improved; the matching mounting structure can synchronously assemble two cutters and independently adjust the position, without repeated tool setting, greatly shortening the auxiliary working hours of type changing; the machining area is closed by the protection structure to block the splashing of iron filings and cutting fluid, and the first collecting box and the second collecting box are matched to realize the zoned recovery of finished products and waste residues, optimize the working environment and reduce the cleaning workload; the feeding structure and the transfer structure are linked to complete the automatic sorting, pushing, grabbing and spindle automatic clamping of the pressing nut, without manual intervention throughout the process, and being suitable for the large-batch automatic precision production of fasteners.

Description

Technical Field

[0001] This invention relates to the technical field of threaded shaft component processing equipment, specifically an integrated precision processing equipment for threaded shaft components. Background Technology

[0002] Threaded shaft clamping components (such as press-fit nuts) are fasteners widely used in electronics, communications, automotive, and aerospace industries. They typically require high-precision internal threads machined into the base material to ensure accurate fit with the shaft diameter. With the increasing demands for component integration and processing efficiency in modern manufacturing, the processing of threaded shaft clamping components is evolving towards an integrated approach of "one-time clamping, multi-process composite."

[0003] However, the current industry typically uses a multi-process approach to process threaded shaft parts. This means that the turning processes, such as outer diameter, end face, and chamfering, are first completed on a lathe, and then the workpiece is transferred to a tapping machine or machining center for thread processing. The workpieces processed in this way need to be clamped and transferred multiple times, which takes a long time and is difficult to meet the high cycle time requirements of mass production. In addition, the existing simple robotic arms and feeding pushers rely only on a single side baffle to limit the crimping of the nut blanks. There is no elastic adaptive limit structure. When there are slight tolerances in the size of the nut blanks, the clamping gap is too large, causing the workpieces to fall during the transfer. If the clamping is too tight, the workpieces are easily squeezed and deformed. Traditional lathe tool holders are mostly single-tool fixed structures, and the turning tool head and tapping drill bit cannot be assembled synchronously. After completing the external turning, the machine needs to be stopped to disassemble the forming tool and replace the tapping tool. Frequent tool disassembly and assembly can easily cause installation misalignment. After each tool change, tool resetting compensation is required, resulting in low tapping tool installation efficiency. Conventional CNC lathe machining stations lack detachable protective covers, resulting in metal chips and high-temperature cutting fluid from turning and tapping splashing without any shielding. The splashing metal chips can easily cut operators, and the high-temperature cutting fluid poses a risk of burns. Waste residue is mixed in various parts of the machine tool and is difficult to clean, making it impossible to achieve centralized waste recycling. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides an integrated precision machining device for threaded shaft components.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an integrated precision machining device for threaded pressure shaft parts, including a CNC lathe and a machining structure disposed on the CNC lathe. The machining structure includes a machining component, a moving component, a moving seat, a mounting seat, a tapping drill bit and a cutting head. The CNC lathe is provided with a machining component, which clamps the workpiece. The machining component is provided with a moving component, and the moving component is provided with a moving seat. The position of the moving seat is adjusted by the moving component. The moving seat is fixedly connected to a mounting seat, and the mounting seat is provided with a mounting structure. The tapping drill bit and the cutting head are mounted through the mounting structure. The mounting structure includes a mounting plate, mounting rails, mounting slots, a locking rod, a pull bar, a first tension spring, and locking holes. Two mounting plates are provided on one side of the mounting base. One mounting plate is fixedly connected to a tapping drill bit, and the other mounting plate is fixedly connected to a cutting head. Each mounting plate is fixedly connected to two mounting rails. The mounting base has two mounting slots, and the mounting rails are slidably connected to the mounting slots. A locking rod is slidably connected to the mounting plate. The mounting base has multiple locking holes arranged in a linear array, and the locking rod engages with the locking holes. A pull bar is fixedly connected to the end of the locking rod, and a first tension spring is fixedly connected between the pull bar and the mounting plate.

[0006] Specifically, the mounting structure also includes guide rods, with two guide rods fixedly connected to each mounting plate, and the pull bar slidably connected to the guide rods.

[0007] Specifically, the machining assembly includes a fixed base, a spindle box, and a rotary chuck. The fixed base is fixedly connected to the CNC lathe, the fixed base is provided with a spindle box, and the rotary chuck is installed on the spindle box to hold and rotate the rivet nut to be machined.

[0008] Specifically, the moving component includes a first screw, a threaded seat, a first slide rail, a slide block, a side plate, a first driving member, a second screw, a second slide rail, a slide groove, and a second driving member. The first screw is rotatably connected to the fixed base, and the threaded seat is fixedly connected to the slide block. The threaded seat is threadedly connected to the first screw. Two first slide rails are fixedly connected to the CNC lathe, and the slide block is slidably connected to the first slide rails. The second driving member is fixedly connected to the fixed base, and the output end of the second driving member is fixedly connected to the first screw. A side plate is fixedly connected to each side of the moving base, and a second screw is rotatably connected between the two side plates. The second screw is threadedly connected to the slide block. The moving base has two slide grooves with a T-shaped cross section. Two second slide rails with a T-shaped cross section are fixedly connected to the slide block, and the second slide rails are slidably connected to the slide grooves. A first driving member is fixedly connected to one of the side plates, and the output end of the first driving member is fixedly connected to the second screw.

[0009] Specifically, the movable base is provided with a protective structure, which includes slots, inserts and a protective cover. The movable base is provided with two slots with a T-shaped cross section, and two inserts with a T-shaped cross section are fixedly connected to the protective cover. The inserts are inserted into the slots.

[0010] Specifically, the protective structure also includes a limiting rod, a limiting hole, a second tension spring, and a pull ring. Two T-shaped limiting rods are slidably connected to the protective cover. Two limiting holes are provided on the movable seat. A second tension spring is fixedly connected between the limiting rod and the protective cover. The limiting rod engages with the limiting hole. A pull ring is fixedly connected to the limiting rod.

[0011] Specifically, a second collection box is provided below the processing structure, a feeding pipe is fixedly connected to the movable seat, and a first collection box is provided at the bottom end of the feeding pipe.

[0012] Specifically, the CNC lathe is equipped with a transfer structure, which includes a fixed plate, a third drive component, a lifting plate, a connecting rod, a fixed plate, a rotating shaft, a transfer plate, and a fourth drive component. A fixed plate is fixedly connected to one side of the CNC lathe, and a third drive component is fixedly connected to the fixed plate. The extension end of the third drive component is fixedly connected to the lifting plate. Multiple connecting rods are fixedly connected to the bottom end of the lifting plate, and a fixed plate is fixedly connected to the bottom end of the connecting rods. A rotating shaft is rotatably connected to the fixed plate, and a transfer plate is fixedly connected to the bottom end of the rotating shaft. A fourth drive component is fixedly connected to the fixed plate, and the output end of the fourth drive component is fixedly connected to the rotating shaft.

[0013] Specifically, the transfer structure also includes guide columns, and two guide columns are fixedly connected to the lifting plate, with the guide columns slidably connected to the fixed plate.

[0014] Specifically, the CNC lathe has a feeding structure on one side, which includes a vibratory feeder, a transfer frame, a placement plate, a fifth driving component, a guide groove, a push plate, a limit block, a stop block, a fixing rod, and a spring. The vibratory feeder and transfer frame are located on one side of the CNC lathe, and the material is fed through the vibratory feeder. A placement plate is fixedly connected to the transfer frame, and a fifth driving component is fixedly connected to the placement plate. A push plate is fixedly connected to the telescopic end of the fifth driving component. A guide groove is provided on the placement plate, and the push plate is slidably connected to the guide groove. A limit block is fixedly connected to the transfer plate, and a fixing rod is fixedly connected to the transfer plate. An L-shaped stop block is slidably connected to the fixing rod, and a spring is fixedly connected between the stop block and the fixing rod. The top section of the stop block is trapezoidal. The limit block and the stop block limit the transfer of the rivet nut, and the height of the limit block is less than the thickness of the rivet nut.

[0015] The beneficial effects of this invention are: (1) The threaded shaft component integrated precision machining device of the present invention integrates the turning head and the tapping drill bit on the same moving seat, realizing the integrated machining of external turning and internal thread tapping under one clamping condition. It does not require changing the tool or re-clamping the workpiece in the middle, avoiding positioning reference conversion error, ensuring machining accuracy and improving machining efficiency.

[0016] (2) The threaded shaft integrated precision machining device of the present invention allows the turning tool head and the tapping drill bit to be installed on the same mounting base at the same time and their positions can be adjusted independently without the need for re-tool setting, thus shortening the auxiliary time and improving the tool changing efficiency.

[0017] (3) The threaded shaft component integrated precision machining device of the present invention forms a shield for the machining area through a protective structure to prevent debris and cutting fluid from splashing. It works with the first collection box and the second collection box to achieve waste residue and finished product classification and recycling, which improves the operating environment and reduces the cleaning difficulty.

[0018] (4) The threaded pressing shaft integrated precision machining device of the present invention realizes automatic sorting, push one by one, automatic material picking and automatic clamping of the pressing nuts through the cooperation of the feeding structure and the transfer structure. It eliminates the need for manual feeding and transfer, reduces labor intensity, improves production efficiency and meets the automated processing needs of mass production. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the transfer frame and the placement plate of the present invention; Figure 3 This is a schematic diagram of the connection structure between the processing structure and the transfer structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the movable base and the protective cover of the present invention; Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of part A. Figure 6 This is a schematic diagram of the connection structure between the transfer plate and the feeding structure of the present invention; Figure 7 This is a schematic diagram of the connection structure between the movable base and the slot of the present invention; Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of section B. Figure 9 This is a schematic diagram of the connection structure between the mounting structure and the tapping drill bit of the present invention; Figure 10 This is a schematic diagram of the structure of the press-fit nut processed according to the present invention.

[0021] In the diagram: 1. CNC lathe; 2. Machining structure; 201. Fixed seat; 202. Spindle box; 203. Rotary chuck; 204. First screw; 205. Threaded seat; 206. First slide rail; 207. Slide; 208. Moving seat; 209. Side plate; 210. First driving component; 211. Second screw; 212. Second slide rail; 213. Slide groove; 214. Mounting seat; 215. Tapping drill bit; 216. Cutting head; 217. Second driving component; 3. Mounting structure; 301. Mounting plate; 302. Mounting rail; 303. Mounting groove; 304. Clamping rod; 305. Tie bar; 306. First tension spring; 307. Guide rod; 308. Clamping hole; 4. Protective structure; 401. Slot; 4 02. Insert block; 403. Protective cover; 404. Limiting rod; 405. Limiting hole; 406. Second tension spring; 407. Pull ring; 5. Transfer structure; 501. Fixing plate; 502. Third driving component; 503. Lifting plate; 504. Guide column; 505. Connecting rod; 506. Fixing plate; 507. Rotating shaft; 508. Transfer plate; 509. Fourth driving component; 6. Feeding structure; 601. Vibrating plate; 602. Transfer frame; 603. Placement plate; 604. Fifth driving component; 605. Guide groove; 606. Push plate; 607. Limiting block; 608. Stop block; 609. Fixing rod; 610. Spring; 7. Discharge pipe; 8. First collection box; 9. Second collection box; 10. Press-fit nut. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, the present invention discloses an integrated precision machining device for threaded shaft components, comprising a CNC lathe 1 and a machining structure 2 mounted on the CNC lathe 1. The machining structure 2 includes a machining component, a moving component, a moving seat 208, a mounting seat 214, a tapping drill bit 215, and a cutting head 216. The CNC lathe 1 is provided with a machining component, which clamps the workpiece. The machining component is provided with a moving component, which is provided with a moving seat 208. The position of the moving seat 208 is adjusted by the moving component. The mounting seat 214 is fixedly connected to the moving seat 208. The mounting seat 214 is provided with a mounting structure 3, which mounts the tapping drill bit 215 and the cutting head 216. The mounting structure 3 includes a mounting plate 301, mounting rails 302, mounting grooves 303, a locking rod 304, a pull bar 305, a first tension spring 306, and locking holes 308. Two mounting plates 301 are provided on one side of the mounting base 214. A tapping drill bit 215 is fixedly connected to one mounting plate 301, and a cutting head 216 is fixedly connected to the other mounting plate 301. Two mounting rails 302 are fixedly connected to each mounting plate 301. The mounting base 214 has two mounting grooves 303, and the mounting rails 302 are slidably connected to the mounting grooves 303. A locking rod 304 is slidably connected to the mounting plate 301. Multiple locking holes 308 are linearly arrayed on the mounting base 214. The locking rod 304 engages with the locking holes 308. A pull bar 305 is fixedly connected to the end of the locking rod 304. The pull bar 305 is connected to the mounting plate 301. A first tension spring 306 is fixedly connected; the mounting structure 3 also includes a guide rod 307, with two guide rods 307 fixedly connected to each mounting plate 301, and a pull bar 305 slidably connected to the guide rod 307; when it is necessary to replace or adjust the cutter head 216 and the tapping drill bit 215, the operator pulls the pull bar 305, causing the locking rod 304 to overcome the tension of the first tension spring 306 and disengage from the locking hole 308, slide the mounting plate 301 along the mounting groove 303, and remove the mounting plate 301 from the mounting base 214 for tool replacement; during installation, the mounting rail 302 on the mounting plate 301 where the new tool is located is aligned with the mounting groove 303 and slid into the required position, the pull bar 305 is released, and the first tension spring 306 pulls the locking rod 304 into the corresponding locking hole 308 and locks it, and the guide rod 307 plays a guiding and limiting role during the sliding process.

[0024] Specifically, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 10As shown, the machining assembly includes a fixed base 201, a spindle box 202, and a rotary chuck 203. The fixed base 201 is fixedly connected to the CNC lathe 1. The spindle box 202 is mounted on the fixed base 201, and the rotary chuck 203 is mounted on the spindle box 202. The rotary chuck 203 clamps and rotates the rivet nut 10 to be machined. The moving assembly includes a first screw 204, a threaded seat 205, a first slide rail 206, a slide block 207, a side plate 209, a first drive component 210, a second screw 211, a second slide rail 212, a slide groove 213, and a second drive component 217. The first screw 204 is rotatably connected to the fixed base 201, and the threaded seat 205 is fixedly connected to the slide block 207. The CNC lathe 1 is threadedly connected to the first screw 204. Two first slide rails 206 are fixedly connected to the CNC lathe 1. A slide block 207 is slidably connected to the first slide rails 206. A second drive member 217 is fixedly connected to the fixed base 201. The output end of the second drive member 217 is fixedly connected to the first screw 204. A side plate 209 is fixedly connected to each side of the movable base 208. A second screw 211 is rotatably connected between the two side plates 209. The second screw 211 is threadedly connected to the slide block 207. The movable base 208 has two T-shaped grooves 213. Two T-shaped second slide rails 212 are fixedly connected to the slide block 207. The second slide rails 212 are slidably connected to the grooves 213. A first driving component 210 is fixedly connected to a side plate 209, and the output end of the first driving component 210 is fixedly connected to a second screw 211. The spindle box 202 is activated to drive the rotating chuck 203, which in turn drives the rivet nut 10 to rotate at high speed. The CNC system controls the second driving component 217 (preferably a servo motor) to start, and the second driving component 217 (preferably a servo motor) drives the first screw 204 to rotate. This rotation, via the threaded seat 205, causes the slide 207 to move up and down along the first slide rail 206 for feeding. Simultaneously, the first driving component 210 is activated, driving the second screw 211 to rotate. This rotation is achieved through the threaded connection between the second screw 211 and the slide 207, and the sliding engagement between the second slide rail 212 and the slide groove 213. The moving seat 208 is driven to perform a transverse feed, aligning the cutter head 216 with the outer diameter and end face of the rivet nut 10 to be machined, completing the outer diameter turning, chamfering and end face flattening operations. The spindle box 202 switches to the tapping speed mode, and the first drive component 210 and the second drive component 217 cooperate to move the cutter head 216 away from the machining area. At the same time, the tapping drill bit 215 is aligned with the center of the pre-made bottom hole of the rivet nut 10. The tapping drill bit 215 rotates and cuts into the bottom hole under the vertical feed drive of the moving component, completing the precision tapping of the internal thread. The generated metal chips fall into the second collection box 9. The finished rivet nut 10 is released by the rotating chuck 203 and falls into the first collection box 8 through the feed tube 7 for collection.

[0025] Specifically, such as Figure 3 , Figure 4 , Figure 5and Figure 7 As shown, the movable base 208 is provided with a protective structure 4, which includes slots 401, inserts 402, and a protective cover 403. The movable base 208 has two slots 401 with T-shaped cross-sections, and two inserts 402 with T-shaped cross-sections are fixedly connected to the protective cover 403. The inserts 402 are inserted into the slots 401. The protective structure 4 also includes limiting rods 404, limiting holes 405, a second tension spring 406, and a pull ring 407. Two limiting rods 404 with T-shaped cross-sections are slidably connected to the protective cover 403, and the movable base 208 has two limiting holes 405. The limiting rods 404 and the protective cover 403 are connected in series. A second tension spring 406 is fixedly connected between the two, and a limiting rod 404 engages with a limiting hole 405. A pull ring 407 is fixedly connected to the limiting rod 404. When it is necessary to remove the protective cover 403, pull the pull ring 407 to make the limiting rod 404 overcome the tension of the second tension spring 406 and exit from the limiting hole 405. Lift the protective cover 403 upward to make the insert 402 disengage from the slot 401, and then remove the protective cover 403 for cleaning. When installing, align the insert 402 with the slot 401 and insert it. Under the action of the second tension spring 406, the limiting rod 404 automatically engages with the limiting hole 405, thus completing the fixation of the protective cover 403.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 6 and Figure 10 As shown, a second collection box 9 is provided below the processing structure 2, and a feeding pipe 7 is fixedly connected to the moving seat 208. A first collection box 8 is provided at the bottom end of the feeding pipe 7. The CNC lathe 1 is provided with a transfer structure 5, which includes a fixed plate 501, a third driving component 502, a lifting plate 503, a connecting rod 505, a fixed plate 506, a rotating shaft 507, a transfer plate 508, and a fourth driving component 509. A fixed plate 501 is fixedly connected to one side of the CNC lathe 1, and a fixed plate 501 is fixed on the fixed plate 501. A third driving component 502 is connected, and a lifting plate 503 is fixedly connected to the telescopic end of the third driving component 502. Multiple connecting rods 505 are fixedly connected to the bottom end of the lifting plate 503. A fixed plate 506 is fixedly connected to the bottom end of the connecting rods 505. A rotating shaft 507 is rotatably connected to the fixed plate 506. A transfer plate 508 is fixedly connected to the bottom end of the rotating shaft 507. A fourth driving component 509 is fixedly connected to the fixed plate 506. The output end of the fourth driving component 509 is fixedly connected to the rotating shaft 507. The transfer structure 5 also includes guide columns 504. Two guide columns 504 are fixedly connected to the lifting plate 503, and the guide columns 504 are slidably connected to the fixing plate 501. A feeding structure 6 is provided on one side of the CNC lathe 1. The feeding structure 6 includes a vibratory plate 601, a transfer frame 602, a placement plate 603, a fifth driving component 604, a guide groove 605, a push plate 606, a limit block 607, a stop block 608, a fixing rod 609, and a spring 610. The vibratory plate 601 and the transfer frame 602 are provided on one side of the CNC lathe 1. The material is fed through the vibratory plate 601. The placement plate 603 is fixedly connected to the transfer frame 602, and the placement plate 603 is fixed with a guide plate 604. A fifth driving component 604 is connected, and a push plate 606 is fixedly connected to the telescopic end of the fifth driving component 604. A guide groove 605 is provided on the placement plate 603, and the push plate 606 is slidably connected to the guide groove 605. A limit block 607 is fixedly connected to the transfer plate 508, and a fixing rod 609 is fixedly connected to the transfer plate 508. A stop block 608 with an L-shaped cross section is slidably connected to the fixing rod 609. A spring 610 is fixedly connected between the stop block 608 and the fixing rod 609. The top cross section of the stop block 608 is trapezoidal. The limit block 607 and the stop block 608 limit the transfer of the rivet nut 10. The height of the limit block 607 is small. Regarding the thickness of the rivet nut 10; the vibratory feeder 601 is activated to transport the rivet nut 10 blank to the placement plate 603 of the transfer frame 602 in a uniform posture. The fifth drive component 604 (preferably an electric push rod) is activated, and the telescopic end of the fifth drive component 604 extends to push the push plate 606 to slide along the guide groove 605, pushing the single rivet nut 10 to the material picking station of the transfer plate 508. The fourth drive component 509 (preferably a servo motor) is activated, and the fourth drive component 509 drives the rotating shaft 507 to rotate, causing the transfer plate 508 to rotate horizontally to below the material picking station. The fifth drive component 604 continues to push the rivet nut 10 blank to the transfer plate. Above 508, the trapezoidal top of the stop 608 contacts the edge of the rivet nut 10 and slides downward against the elastic force of the spring 610 under the guidance of the inclined surface, so that the rivet nut 10 enters between the limit block 607 and the stop 608. The spring 610 resets, so that the stop 608 returns to its original position and together with the limit block 607 clamps the rivet nut 10. The fourth drive member 509 drives the transfer plate 508 to rotate to directly below the rotating chuck 203. The third drive member 502 (preferably an electric push rod) retracts, thereby driving the transfer plate 508 to rise. At the same time, the rivet nut 10 rises, the rotating chuck 203 opens to clamp the rivet nut 10, and the transfer plate 508 returns to its original position.

[0027] In use, the present invention firstly starts the vibratory feeder 601, which transports the blank of the rivet nut 10 to the placement plate 603 of the transfer frame 602 in a uniform posture. Then, the fifth driving member 604 (preferably an electric push rod) is started. The telescopic end of the fifth driving member 604 extends and pushes the push plate 606 to slide along the guide groove 605, pushing the single rivet nut 10 to the material picking station of the transfer plate 508. Then, the fourth drive unit 509 (preferably a servo motor) is activated. The fourth drive unit 509 drives the rotating shaft 507 to rotate, causing the transfer plate 508 to rotate horizontally to below the material handling station. The fifth drive unit 604 continues to push the blank of the rivet nut 10 to above the transfer plate 508. The trapezoidal top of the stop block 608 contacts the edge of the rivet nut 10 and slides downward under the guidance of the inclined surface, overcoming the elastic force of the spring 610, so that the rivet nut 10 enters between the limit block 607 and the stop block 608. The spring 610 resets, causing the stop block 608 to return to its original position and together with the limit block 607, clamps the rivet nut 10. The fourth drive unit 509 drives the transfer plate 508 to rotate to directly below the rotating chuck 203. The third drive unit 502 (preferably an electric push rod) retracts, thereby driving the transfer plate 508 to rise. At the same time, the rivet nut 10 rises, the rotating chuck 203 opens to clamp the rivet nut 10, and the transfer plate 508 returns to its original position. Next, the spindle box 202 is started to drive the rotating chuck 203 to rotate the rivet nut 10 at high speed. The CNC system controls the second drive component 217 (preferably a servo motor) to start. The second drive component 217 (preferably a servo motor) drives the first screw 204 to rotate, which drives the slide 207 to move up and down along the first slide rail 206 through the threaded seat 205. At the same time, the first drive component 210 is started, which drives the second screw 211 to rotate. Through the threaded connection between the second screw 211 and the slide 207 and the sliding engagement between the second slide rail 212 and the slide groove 213, the moving seat 208 is driven to move laterally, moving the cutter head 216. Align the outer diameter and end face of the rivet nut 10 to be machined, and complete the outer diameter turning, chamfering and end face flattening operations. The spindle box 202 switches to the tapping speed mode. The first drive component 210 and the second drive component 217 cooperate to move the cutter head 216 away from the machining area. At the same time, the tapping drill bit 215 is aligned with the center of the pre-made bottom hole of the rivet nut 10. The tapping drill bit 215 rotates and cuts into the bottom hole under the vertical feed drive of the moving component to complete the precision tapping of the internal thread. The generated metal chips fall into the second collection box 9. The finished rivet nut 10 is released by the rotating chuck 203 and falls into the first collection box 8 through the feed tube 7 for collection. When it is necessary to replace or adjust the cutter head 216 and the tapping drill bit 215, the operator pulls the pull bar 305, causing the locking rod 304 to overcome the tension of the first tension spring 306 and disengage from the locking hole 308. The mounting plate 301 is then slid along the mounting groove 303 to remove the mounting plate 301 from the mounting base 214 for tool replacement. During installation, the mounting rail 302 on the mounting plate 301 where the new tool is located is aligned with the mounting groove 303 and slid into the desired position. The pull bar 305 is then released, and the first tension spring 306 pulls the locking rod 304 into the corresponding locking hole 308 and locks it in place. The guide rod 307 acts as a guide and limiter during the sliding process. When it is necessary to remove the protective cover 403, pull the pull ring 407 to make the limiting rod 404 overcome the tension of the second tension spring 406 and exit from the limiting hole 405. Lift the protective cover 403 upward to make the insert 402 disengage from the slot 401, and then remove the protective cover 403 for cleaning. When installing, align the insert 402 with the slot 401 and insert it. Under the action of the second tension spring 406, the limiting rod 404 will automatically engage with the limiting hole 405 to complete the fixing of the protective cover 403.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision machining device for integrated threaded shaft components, characterized in that, The system includes a CNC lathe (1) and a machining structure (2) mounted on the CNC lathe (1). The machining structure (2) includes a machining component, a moving component, a moving seat (208), a mounting seat (214), a tapping drill bit (215), and a cutting head (216). The CNC lathe (1) is equipped with a machining component, which clamps the workpiece. The machining component is equipped with a moving component, which is equipped with a moving seat (208). The position of the moving seat (208) is adjusted by the moving component. The moving seat (208) is fixedly connected to the mounting seat (214). The mounting seat (214) is equipped with a mounting structure (3), which mounts the tapping drill bit (215) and the cutting head (216). The mounting structure (3) includes a mounting plate (301), mounting rails (302), mounting grooves (303), a locking rod (304), a pull bar (305), a first tension spring (306), and locking holes (308). Two mounting plates (301) are provided on one side of the mounting base (214). A tapping drill bit (215) is fixedly connected to one mounting plate (301), and a cutting head (216) is fixedly connected to the other mounting plate (301). Two mounting rails (304, 305, 306, 307, 308) are fixedly connected to each mounting plate (301). 2) The mounting base (214) is provided with two mounting grooves (303), the mounting rail (302) is slidably connected to the mounting grooves (303), the mounting plate (301) is slidably connected with a locking rod (304), the mounting base (214) is provided with multiple locking holes (308) in a linear array, the locking rod (304) engages with the locking holes (308), the end of the locking rod (304) is fixedly connected with a pull bar (305), and a first tension spring (306) is fixedly connected between the pull bar (305) and the mounting plate (301).

2. The integrated precision machining device for threaded shaft components according to claim 1, characterized in that: The mounting structure (3) also includes guide rods (307), and two guide rods (307) are fixedly connected to each mounting plate (301). The pull bar (305) is slidably connected to the guide rods (307).

3. The integrated precision machining device for threaded shaft components according to claim 1, characterized in that: The processing assembly includes a fixed base (201), a spindle box (202), and a rotary chuck (203). The fixed base (201) is fixedly connected to the CNC lathe (1). The spindle box (202) is provided on the fixed base (201). The rotary chuck (203) is installed on the spindle box (202). The rotary chuck (203) clamps the rotating rivet nut (10) to be processed.

4. The integrated precision machining device for threaded shaft components according to claim 3, characterized in that: The moving assembly includes a first screw (204), a threaded seat (205), a first slide rail (206), a slide block (207), a side plate (209), a first drive member (210), a second screw (211), a second slide rail (212), a slide groove (213), and a second drive member (217). The first screw (204) is rotatably connected to the fixed base (201), and the threaded seat (205) is fixedly connected to the slide block (207). The threaded seat (205) is threadedly connected to the first screw (204). Two first slide rails (206) are fixedly connected to the CNC lathe (1), and the slide block (207) is slidably connected to the first slide rails (206). The second drive member (217) is fixedly connected to the fixed base (201). The output end of the second driving member (217) is fixedly connected to the first screw (204). A side plate (209) is fixedly connected to each side of the movable seat (208). A second screw (211) is rotatably connected between the two side plates (209). The second screw (211) is threadedly connected to the slide (207). The movable seat (208) is provided with two T-shaped slide grooves (213). Two T-shaped second slide rails (212) are fixedly connected to the slide (207). The second slide rails (212) are slidably connected to the slide grooves (213). A first driving member (210) is fixedly connected to one of the side plates (209). The output end of the first driving member (210) is fixedly connected to the second screw (211).

5. The integrated precision machining device for threaded shaft components according to claim 1, characterized in that: The movable base (208) is provided with a protective structure (4), which includes a slot (401), a plug (402) and a protective cover (403). The movable base (208) is provided with two slots (401) with a T-shaped cross section. Two plugs (402) with a T-shaped cross section are fixedly connected to the protective cover (403). The plugs (402) are inserted into the slots (401).

6. The integrated precision machining device for threaded shaft components according to claim 5, characterized in that: The protective structure (4) also includes a limiting rod (404), a limiting hole (405), a second tension spring (406), and a pull ring (407). Two T-shaped limiting rods (404) are slidably connected on the protective cover (403). Two limiting holes (405) are provided on the movable seat (208). A second tension spring (406) is fixedly connected between the limiting rod (404) and the protective cover (403). The limiting rod (404) engages with the limiting hole (405). A pull ring (407) is fixedly connected on the limiting rod (404).

7. The integrated precision machining device for threaded shaft components according to claim 1, characterized in that: A second collection box (9) is provided below the processing structure (2), and a feeding pipe (7) is fixedly connected to the moving seat (208). A first collection box (8) is provided at the bottom end of the feeding pipe (7).

8. The integrated precision machining device for threaded shaft components according to claim 1, characterized in that: The CNC lathe (1) is provided with a transfer structure (5), which includes a fixed plate (501), a third drive component (502), a lifting plate (503), a connecting rod (505), a fixed plate (506), a rotating shaft (507), a transfer plate (508), and a fourth drive component (509). A fixed plate (501) is fixedly connected to one side of the CNC lathe (1), and a third drive component (502) is fixedly connected to the fixed plate (501). The telescopic end of the third drive component (502) A lifting plate (503) is fixedly connected. Multiple connecting rods (505) are fixedly connected to the bottom end of the lifting plate (503). A fixed plate (506) is fixedly connected to the bottom end of the connecting rods (505). A rotating shaft (507) is rotatably connected to the fixed plate (506). A transfer plate (508) is fixedly connected to the bottom end of the rotating shaft (507). A fourth driving component (509) is fixedly connected to the fixed plate (506). The output end of the fourth driving component (509) is fixedly connected to the rotating shaft (507).

9. The integrated precision machining device for threaded shaft components according to claim 8, characterized in that: The transfer structure (5) also includes guide columns (504). Two guide columns (504) are fixedly connected to the lifting plate (503), and the guide columns (504) are slidably connected to the fixing plate (501).

10. The integrated precision machining device for threaded shaft components according to claim 8, characterized in that: The CNC lathe (1) has a feeding structure (6) on one side. The feeding structure (6) includes a vibratory feeder (601), a transfer frame (602), a placement plate (603), a fifth driving member (604), a guide groove (605), a push plate (606), a limit block (607), a stop block (608), a fixing rod (609), and a spring (610). The CNC lathe (1) has a vibratory feeder (601) and a transfer frame (602) on one side. The vibratory feeder (601) feeds the material. The transfer frame (602) is fixedly connected to the placement plate (603). The placement plate (604) is fixedly connected to the placement plate (603). The extension end of the fifth driving member (604) is fixedly connected to the push plate (604). 606), the placement plate (603) is provided with a guide groove (605), the push plate (606) is slidably connected to the guide groove (605), the transfer plate (508) is fixedly connected with a limit block (607), the transfer plate (508) is fixedly connected with a fixing rod (609), the fixing rod (609) is slidably connected with a stop block (608) with an L-shaped cross section, the stop block (608) and the fixing rod (609) are fixedly connected with a spring (610), the top cross section of the stop block (608) is a trapezoidal structure, the rivet nut (10) is transferred and limited by the limit block (607) and the stop block (608), the height of the limit block (607) is less than the thickness of the rivet nut (10).

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