Special high-precision turning, milling and grinding integrated machining machine for tail part of screw rod of injection molding machine

Abstract

The high-precision turning, milling and grinding integrated machining special machine for the tail of the screw of the injection molding machine comprises a machine body, and a mechanical arm used for feeding and discharging is installed on the front side of the top of the machine body. Through cooperative use of the moving mechanism, the left end clamping mechanism and the machining mechanism, the two ends of a single-screw rhomboid screw or an auxiliary-screw rhomboid screw can be clamped and fixed no matter the single-screw rhomboid screw or the auxiliary-screw rhomboid screw is machined, the clamping mode does not generate a dead angle area, the traditional mode that clamping is conducted only through the single end is changed, the situation that a workpiece is affected by centrifugal force is avoided, and the machining efficiency is improved. Therefore, the accuracy of thread engraving and milling is improved, waste chips generated by engraving and milling can be collected in the waste collecting box, and the cleanliness of the environment is guaranteed; besides, a storage mechanism and a detection mechanism are arranged for cooperative use, a milling cutter, a grinding head and a drilling head used in the machining process can be automatically replaced, threads on machined workpieces can be detected, substantive improvement is achieved, and the device is beneficial to application and popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machine screw processing, and specifically relates to a special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw. Background Technique

[0002] The injection screw is an important component of an injection molding machine. Its function is to convey, compact, melt, stir and apply pressure to plastics, all of which are completed by the rotation of the screw in the barrel. In the production and processing of injection screws, first, threading operations are performed on the outer wall of the screw to form a threaded section, and then the threaded section is finely polished.

[0003] Currently, when processing injection screws, most of the existing devices usually only clamp one end of the workpiece, exposing the tail of the workpiece. However, in this way, the workpiece is easily affected by centrifugal force, resulting in inaccurate engraving and milling of the thread, reducing the processing efficiency and quality of the injection screw; in addition, the "waste chips" generated during processing are prone to fly, which is not convenient for the staff to clean and collect, and it is difficult to meet the needs of the staff. Summary of the Invention

[0004] To solve the above technical problems, a special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw is provided. This technical solution solves the problems proposed in the above background technique that most of the existing devices usually only clamp one end of the workpiece, exposing the tail of the workpiece. However, in this way, the workpiece is easily affected by centrifugal force, resulting in inaccurate engraving and milling of the thread, reducing the processing efficiency and quality of the injection screw; in addition, the "waste chips" generated during processing are prone to fly, which is not convenient for the staff to clean and collect.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw, including a machine body. A robotic arm for loading and unloading is installed on the front side of the top of the machine body. A fixing frame is welded on the left side of the top of the machine body. A rotating frame is rotatably connected inside the fixing frame. A first driving motor for driving the rotating frame to rotate is arranged on the front side of the fixing frame. The top of the rotating frame is connected to a sliding frame through a moving mechanism. The sliding frame is slidably connected to the outer wall of the rotating frame, and the right end of the sliding frame is rotatably connected to a shielding frame. A second driving motor for driving the shielding frame to rotate is installed outside the sliding frame. A left-end clamping mechanism is arranged on the left side inside the rotating frame. A processing mechanism and a limiting mechanism are installed on the right side inside the sliding frame. In addition, a storage mechanism and a detection mechanism are installed on the top of the machine body. A waste collection box is arranged on the right side of the machine body.

[0006] Preferably, the moving mechanism includes a first fixing block welded to the left side of the top of the rotating frame. The right side of the first fixing block is fixedly connected to a connecting block through a first guiding rod. A first lead screw is rotatably connected between the connecting block and the first fixing block. A first stepping motor for driving the first lead screw to rotate is arranged outside the first fixing block. A movable block is threadedly connected to the first lead screw. The bottom of the movable block is welded to a sliding frame, and the movable block is slidably connected to the first guiding rod.

[0007] Preferably, the left end clamping mechanism includes a fourth driving motor installed on the left side of the rotating frame. The output end of the fourth driving motor extends into the rotating frame and is fixedly connected to a first rotating plate. A plurality of groups of installation grooves are formed on the right side of the first rotating plate. A second lead screw is rotatably connected inside the installation groove. A second guiding rod is also fixedly installed in the installation groove. A second clamping member is slidably connected to the second guiding rod. The second clamping member is threadedly connected to the second lead screw, and the outer end of the second lead screw extends outside the installation groove and is fixedly connected to a driven gear. An end face gear is also rotatably connected to the circumferential surface of the first rotating plate. A third driving motor is fixedly installed on the first rotating plate. The middle of the outer end of one of the driven gears is fixedly connected to the output end of the third driving motor.

[0008] Preferably, the limiting mechanism includes a first electric push rod fixedly installed at the inner bottom end of the shielding frame. The output end of the first electric push rod is fixedly connected to a first double-headed cylinder. Both output ends of the first double-headed cylinder are fixedly connected to a first clamping member.

[0009] Preferably, the processing mechanism includes a second rotating plate rotatably connected inside the shielding frame. A connecting tooth is fixedly installed at the outer end of the second rotating plate. A fifth driving motor is arranged on the inner wall of the shielding frame. The connecting tooth is engaged with a driving tooth fixedly installed at the output end of the fifth driving motor. A second stepping motor is connected to the inner wall of the second rotating plate. The output end of the second stepping motor is provided with a third lead screw. A lifting block is threadedly connected to the third lead screw. The lifting block is slidably connected to a third guiding rod welded inside the second rotating plate. A multi-stage electric telescopic rod is fixedly connected to the left side of the lifting block. A moving plate is fixedly connected to the sliding rod at the end of the multi-stage electric telescopic rod. When the multi-stage electric telescopic rod is fully extended, the length of the multi-stage electric telescopic rod is adapted to the sum of the lengths of the rotating frame and the sliding frame.

[0010] Preferably, the movable plate is internally rotatably connected with a first electric lifting rod, the output end of the first electric lifting rod is fixedly connected with the first lifting member, a hair dryer is installed at the bottom of the first lifting member, the outer surface of the first electric lifting rod is connected with a first driven wheel, a sixth driving motor is arranged on the top of the movable plate, the output end of the sixth driving motor is connected with the first driving wheel, the first driving wheel is connected to the first driven wheel through a first belt, and a seventh driving motor is installed on the left side of the first lifting member, the output end of the seventh driving motor is fixedly connected with the installation frame, the installation frame is internally rotatably connected with a connecting member, the An eighth driving motor for driving the connecting member to rotate is installed on the outside of the mounting frame, and a ninth driving motor is arranged on the outer end of the connecting member, a fixing frame is installed on the output end of the ninth driving motor, a first threaded rod is rotatably connected in the fixing frame, and the threads opened at both ends of the first threaded rod have opposite rotation directions, a first fixing rod is also installed in the fixing frame, two groups of third clamping members are slidably connected to the first fixing rod, the two groups of the third clamping members are respectively threadedly connected to the two ends of the outer surface of the first threaded rod, a first servo motor for driving the first threaded rod to rotate is arranged on the outside of the fixing frame, and the two groups of the third clamping members are used to clamp a milling cutter or a grinding head.

[0011] Preferably, a second electric lifting rod is fixedly connected to the mounting rod of the multi-stage electric telescopic rod, the output end of the second electric lifting rod is fixedly connected to the second lifting member, the second electric push rod is rotatably connected inside the second lifting member, a passive gear is installed on the outer wall of the second electric push rod, a tenth driving motor is arranged on the outer side of the second lifting member, the output end of the tenth driving motor is fixedly connected to a driving gear meshing with the passive gear, and the output end of the second electric push rod is fixedly connected to a connecting frame, the interior of the connecting frame is rotatably connected to a fourth screw rod, a moving frame and a moving disk are threadedly connected to the fourth screw rod, the moving frame and the moving disk are both slidably connected to a fourth guide rod, and a third stepping motor for driving the fourth screw rod to rotate is installed on the outer side of the connecting frame.

[0012] Preferably, a second threaded rod is rotatably connected inside the moving frame. Both ends of the second threaded rod are threadedly connected with fourth clamping members. Both groups of the fourth clamping members are slidably connected with the second fixing rod. The second fixing rod is welded inside the moving frame. And a second servo motor for driving the second threaded rod to rotate is arranged on the outer side of the moving frame. The two groups of the fourth clamping members are used for clamping the drilling head. And a rotating member is rotatably connected inside the moving disk. Internal teeth and external teeth are respectively installed on the inner and outer circumferential surfaces of the rotating member. A first gear and several groups of second gears are also rotatably connected inside the moving disk. A transmission motor for driving the first gear to rotate is fixedly installed on the inner wall of the moving disk. Several groups of toothed plates are also slidably connected inside the moving disk. The several groups of toothed plates are respectively meshed with the several groups of second gears. The first gear is meshed with the external teeth. The second gears are meshed with the internal teeth. And the outer ends of the toothed plates are welded with abutting cross plates. An abutting inclined plate is installed at the outer end of the abutting cross plate.

[0013] Preferably, the storage mechanism includes second fixing blocks, a fifth lead screw, a fifth guide rod and a storage member. Two groups of the second fixing blocks are respectively installed on the front and rear sides of the top of the machine body. The fifth lead screw is rotatably connected between the two groups of second fixing blocks. The fifth guide rod is fixedly installed between the two groups of second fixing blocks. The storage member is threadedly connected with the fifth lead screw and is slidably connected with the fifth guide rod. A fourth stepping motor for driving the fifth lead screw to rotate is arranged on the outer side of one of the second fixing blocks. Several groups of milling cutters, grinding heads and drilling heads are arranged inside the storage member.

[0014] Preferably, the detection mechanism includes third fixing blocks. Two groups of the third fixing blocks are both welded on the rear side of the top of the machine body. A sixth lead screw is rotatably connected between the two groups of third fixing blocks. A moving member is threadedly connected with the sixth lead screw. The moving member is slidably connected with the sixth guide rod. The sixth guide rod is welded between the two groups of third fixing blocks. A fifth stepping motor for driving the sixth lead screw to rotate is installed on the outer side of one of the third fixing blocks. A flipping motor is arranged on the top of the outer side of the moving member. The output end of the flipping motor is fixedly connected with a flipping plate. And a third electric push rod is rotatably connected inside the flipping plate. A motor is arranged on the outer side wall of the flipping plate. The output end of the motor is fixedly installed with a second driving wheel. A second driven wheel is connected to the third electric push rod. The second driving wheel is in transmission connection with the second driven wheel through a second belt. The output end of the third electric push rod is fixedly connected with a mounting plate. A second double-headed cylinder is fixedly installed on the outer side of the mounting plate. Fifth clamping members are installed at both output ends of the second double-headed cylinder. The two groups of the fifth clamping members are used for clamping the thread gauge.

[0015] Compared with the prior art, the present invention provides a special machine for high-precision turning, milling and grinding of the tail of an injection molding machine screw, and has the following beneficial effects: Through the combined use of a moving mechanism, a left-end clamping mechanism and a processing mechanism, the present invention can clamp and fix both ends of a single-screw rhombic screw or a secondary-screw rhombic screw during processing. The clamping method will not produce dead zones, changing the traditional single-end clamping method, avoiding the influence of centrifugal force on the workpiece, thereby improving the accuracy of thread carving and milling. Moreover, the "waste chips" generated during carving and milling can be collected in a waste collection box, ensuring a clean environment. In addition, the present invention secondly sets up the combined use of a storage mechanism and a detection mechanism, which can automatically replace the milling cutters, grinding heads and drilling heads used during the processing and detect the threads on the processed workpieces. Therefore, the present invention realizes the automated batch production of injection molding machine screws without manual operation, with substantial improvements, and this device is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structures of the rotating frame and the sliding frame in the present invention; Figure 3 is a schematic diagram of the internal structures of the rotating frame and the sliding frame in the present invention; Figure 4 is a schematic diagram of the structure of the left-end clamping mechanism in the present invention; Figure 5 is a schematic diagram of the internal structure of the shielding frame in the present invention; Figure 6 In the present invention Figure 5 is an enlarged schematic diagram of the structure at A proposed in the present invention; Figure 7 is a schematic diagram of the structure of the processing mechanism in the present invention; Figure 8 is a schematic diagram of the structure of the moving plate in the present invention; Figure 9 is a schematic diagram of the internal structure of the fixed frame in the present invention; Figure 10 is a schematic diagram of the internal structure of the connecting frame in the present invention; Figure 11 is a schematic diagram of the internal structure of the moving disk in the present invention; Figure 12 is a schematic diagram of the structure of the storage mechanism in the present invention; Figure 13 is a schematic diagram of the structure of the detection mechanism in the present invention; Figure 14 is a schematic diagram of the structures of the single-screw rhombic screw and the secondary-screw rhombic screw in the present invention.

[0017] The reference numerals in the drawings are: 1. Body; 101. Robotic arm; 102. Fixing frame; 103. First driving motor; 104. Rotating frame; 105. Sliding frame; 106. Second driving motor; 107. Shielding frame; 108. First electric push rod; 109. First double-headed cylinder; 110. First clamping member; 111. Waste collection box 2. Moving mechanism; 201. First fixing block; 202. First guiding rod; 203. Connecting block; 204. First lead screw; 205. First stepping motor; 206. Movable block 3. Left-end clamping mechanism; 301. First rotating plate; 302. Second lead screw; 303. Second guiding rod; 304. Driven gear; 305. Face gear; 306. Third driving motor; 307. Second clamping member; 308. Fourth driving motor 4. Processing mechanism; 401. Second rotating plate; 402. Connecting tooth; 403. Driving tooth; 404. Fifth driving motor; 405. Second stepping motor; 406. Third lead screw; 407. Third guiding rod; 408. Lifting block; 409. Multistage electric telescopic rod; 410. Moving plate; 411. First electric lifting rod; 412. Sixth driving motor; 413. First driving wheel; 414. First driven wheel; 415. First lifting member; 416. Hair dryer; 417. Seventh driving motor; 418. Mounting frame; 419. Eighth driving motor; 420. Connecting member; 421. Ninth driving motor; 422. Fixed frame; 423. First threaded rod; 424. First fixed rod; 425. First servo motor; 426. Third clamping member; 427. Second electric lifting rod; 428. Second lifting member; 429. Second electric push rod; 430. Tenth driving motor; 431. Driving gear; 432. Driven gear; 433. Connecting frame; 434. Fourth lead screw; 435. Fourth guiding rod; 436. Third stepping motor; 437. Moving frame; 438. Second threaded rod; 439. Second fixed rod; 440. Second servo motor; 441. Fourth clamping member; 442. Moving disk; 443. Rotating member; 444. First gear; 445. Second gear; 446. Transmission motor; 447. Rack; 448. Contact transverse plate; 449. Contact inclined plate 5. Storage mechanism; 501. Second fixed block; 502. Fifth lead screw; 503. Fifth guiding rod; 504. Fourth stepping motor; 505. Storage member 6. Detection mechanism; 601. Third fixed block; 602. Sixth lead screw; 603. Sixth guide rod; 604. Fifth stepper motor; 605. Moving part; 606. Tipping motor; 607. Tipping plate; 608. Third electric push rod; 609. Second driven wheel; 610. Electric motor; 611. Second driving wheel; 612. Mounting plate; 613. Second double-headed cylinder; 614. Fifth clamping part; 615. Thread gauge. Detailed implementation manners

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variants.

[0019] Embodiment 1 Please refer to Figures 1 - 13 As shown, a special machine for high-precision turning, milling and grinding of the tail of an injection molding machine screw includes a machine body 1. A robotic arm 101 for loading and unloading is installed on the front side of the top of the machine body 1. A fixing frame 102 is welded on the left side of the top of the machine body 1. A rotating frame 104 is rotatably connected inside the fixing frame 102. A first driving motor 103 for driving the rotation of the rotating frame 104 is arranged on the front side of the fixing frame 102. The top of the rotating frame 104 is connected to a sliding frame 105 through a moving mechanism 2. The sliding frame 105 is slidably connected to the outer wall of the rotating frame 104, and the right end of the sliding frame 105 is rotatably connected to a shielding frame 107. A second driving motor 106 for driving the rotation of the shielding frame 107 is installed outside the sliding frame 105. A left-end clamping mechanism 3 is arranged on the left side inside the rotating frame 104. A processing mechanism 4 and a limiting mechanism are installed on the right side inside the sliding frame 105. A storage mechanism 5 and a detection mechanism 6 are also installed on the top of the machine body 1. A waste collection box 111 is arranged on the right side of the machine body 1.

[0020] Embodiment 2 Please refer to Figure 2 and Figure 3 As shown, the moving mechanism 2 includes a first fixed block 201 welded on the left side of the top of the rotating frame 104. The right side of the first fixed block 201 is fixedly connected to a connecting block 203 through a first guide rod 202. A first lead screw 204 is rotatably connected between the connecting block 203 and the first fixed block 201. A first stepper motor 205 for driving the rotation of the first lead screw 204 is arranged outside the first fixed block 201. A moving block 206 is threadedly connected to the first lead screw 204. The bottom of the moving block 206 is welded to the sliding frame 105. The moving block 206 is slidably connected to the first guide rod 202.

[0021] Those skilled in the art can understand that the output end of the first stepper motor 205 drives the first lead screw 204 to rotate, so that the moving block 206 moves left and right reciprocally, thereby driving the sliding frame 105 to move left and right reciprocally along the outer wall of the rotating frame 104.

[0022] Example 3 Please refer to Figure 3 and Figure 4 As shown, the left clamping mechanism 3 includes a fourth driving motor 308. The fourth driving motor 308 is installed on the left side of the rotating frame 104. The output end of the fourth driving motor 308 extends into the rotating frame 104 and is fixedly connected to the first rotating plate 301. A number of groups of installation grooves are provided on the right side of the first rotating plate 301. A second lead screw 302 is rotatably connected inside the installation groove. A second guide rod 303 is also fixedly installed in the installation groove. A second clamping member 307 is slidably connected to the second guide rod 303. The second clamping member 307 is threadedly connected to the second lead screw 302. The outer end of the second lead screw 302 extends outside the installation groove and is fixedly connected to the driven gear 304. An end face gear 305 is also rotatably connected to the circumferential surface of the first rotating plate 301. A third driving motor 306 is fixedly installed on the first rotating plate 301. The middle part of the outer end of one of the driven gears 304 is fixedly connected to the output end of the third driving motor 306.

[0023] Those skilled in the art can understand that by driving one of the driven gears 304 to rotate through the output end of the third driving motor 306, the end face gear 305 rotates, driving all the second lead screws 302 to rotate synchronously. Further, all the second clamping members 307 move synchronously towards the position close to the center of the first rotating plate 301 or away from the center of the first rotating plate 301, so as to clamp or release the workpiece. And by driving the first rotating plate 301 to rotate through the output end of the fourth driving motor 308, the workpiece in the clamped state can be driven to rotate.

[0024] Example 4 Please refer to Figure 3 As shown, the limiting mechanism includes a first electric push rod 108. The first electric push rod 108 is fixedly installed at the inner bottom end of the shielding frame 107. The output end of the first electric push rod 108 is fixedly connected to a first double-headed air cylinder 109. Both output ends of the first double-headed air cylinder 109 are fixedly connected to the first clamping members 110.

[0025] Those skilled in the art can understand that by controlling the elongation or contraction of the output end of the first electric push rod 108, the first double-headed air cylinder 109 and the two groups of first clamping members 110 as a whole move to the left or to the right; and by controlling the elongation or contraction of the two output ends of the first double-headed air cylinder 109, the two groups of first clamping members 110 are driven to move away from or close to each other. And when they are close, the outer wall of the workpiece can also be clamped.

[0026] Example 5 Please refer to Figure 2 , Figure 5 ,Figure 6 and Figure 7 As shown in Figure 7 , the processing mechanism 4 includes a second rotating plate 401 which is rotatably connected inside the shielding frame 107. A connecting tooth 402 is fixedly installed at the outer end of the second rotating plate 401. A fifth driving motor 404 is arranged on the inner wall of the shielding frame 107. The connecting tooth 402 meshes with a driving tooth 403 which is fixedly installed at the output end of the fifth driving motor 404. A second stepping motor 405 is connected to the inner wall of the second rotating plate 401. A third lead screw 406 is installed at the output end of the second stepping motor 405. A lifting block 408 is threadedly connected to the third lead screw 406. The lifting block 408 is slidably connected to a third guide rod 407 which is welded inside the second rotating plate 401. A multi-stage electric telescopic rod 409 is fixedly connected to the left side of the lifting block 408. A moving plate 410 is fixedly connected to the sliding rod at the end of the multi-stage electric telescopic rod 409. When the multi-stage electric telescopic rod 409 is fully extended, the length of the multi-stage electric telescopic rod 409 is adapted to the sum of the lengths of the rotating frame 104 and the sliding frame 105.

[0027] Those skilled in the art can understand that the output end of the fifth driving motor 404 drives the driving tooth 403 to rotate, causing the connecting tooth 402 and the second rotating plate 401 as a whole to rotate, thereby driving all the structures located on the left side of the second rotating plate 401 to rotate synchronously; and the output end of the second stepping motor 405 drives the third lead screw 406 to rotate, causing the lifting block 408 to reciprocate up and down along the outer wall of the third guide rod 407, realizing that all the structures connected to the lifting block 408 can reciprocate up and down; and the multi-stage electric telescopic rod 409 can be said to be composed of two parts, one part is the mounting rod, and the other part is several groups of sliding rods. The right end of the mounting rod is fixed to the left side wall of the lifting block 408. The several groups of sliding rods slide relative to each other, and can be completely received inside the mounting rod or completely extended outside the mounting rod, that is to say, the multi-stage electric telescopic rod 409 can drive the moving plate 410 to reciprocate left and right.

[0028] Please refer to Figure 8 and Figure 9As shown in the figure, a first electric lifting rod 411 is rotatably connected inside the moving plate 410. The output end of the first electric lifting rod 411 is fixedly connected to a first lifting member 415. A hair dryer 416 is installed at the bottom of the first lifting member 415. A first driven wheel 414 is connected to the outer surface of the first electric lifting rod 411. A sixth driving motor 412 is arranged on the top of the moving plate 410. The output end of the sixth driving motor 412 is connected to a first driving wheel 413. The first driving wheel 413 is in transmission connection with the first driven wheel 414 through a first belt. A seventh driving motor 417 is installed on the left side of the first lifting member 415. The output end of the seventh driving motor 417 is fixedly connected to a mounting frame 418. A connecting member 420 is rotatably connected inside the mounting frame 418. An eighth driving motor 419 for driving the connecting member 420 to rotate is installed outside the mounting frame 418. A ninth driving motor 421 is arranged at the outer end of the connecting member 420. The output end of the ninth driving motor 421 is installed with a fixing frame 422. A first threaded rod 423 is rotatably connected inside the fixing frame 422. The thread directions of the two ends of the first threaded rod 423 are opposite. A first fixing rod 424 is also installed inside the fixing frame 422. Two groups of third clamping members 426 are slidably connected to the first fixing rod 424. The two groups of third clamping members 426 are respectively threadedly connected to the two ends of the outer surface of the first threaded rod 423. A first servo motor 425 for driving the first threaded rod 423 to rotate is arranged outside the fixing frame 422. The two groups of third clamping members 426 are used for clamping a milling cutter or a grinding head.

[0029] Those skilled in the art can understand that the output end of the first electric lifting rod 411 drives the first lifting member 415 to move up and down, so as to drive the hair dryer 416 to move up and down and the milling cutter or grinding head clamped by the two groups of third clamping members 426 to move up and down. The output end of the sixth driving motor 412 drives the first driving wheel 413 to rotate. Driven by the first belt, the first driven wheel 414 and the first electric lifting rod 411 as a whole rotate synchronously, driving the milling cutter or grinding head clamped by the two groups of third clamping members 426 to rotate with the first electric lifting rod 411 as the "center". The output end of the seventh driving motor 417 drives the mounting frame 418 to rotate, so that the milling cutter or grinding head clamped by the two groups of third clamping members 426 rotates in the vertical plane. And the output end of the eighth driving motor 419 drives the connecting member 420 to rotate, so that the milling cutter or grinding head clamped by the two groups of third clamping members 426 rotates in another vertical plane, and these two vertical planes are perpendicular to each other. In summary, the milling cutter or grinding head in the clamped state can be well adjusted in angle and is suitable for milling and grinding during the processing of the screw of the injection molding machine. The output end of the first servo motor 425 drives the first threaded rod 423 to rotate, causing the two groups of third clamping members 426 to approach or move away from each other. When approaching, the milling cutter or the grinding head is firmly clamped, and when moving away, the clamping of the milling cutter or the grinding head is released.

[0030] Please refer to Figure 7 and Figure 10 As shown in the figure, a second electric lifting rod 427 is fixedly connected to the mounting rod of the multi-stage electric telescopic rod 409. The output end of the second electric lifting rod 427 is fixedly connected to the second lifting member 428. A second electric push rod 429 is rotatably connected inside the second lifting member 428. A passive gear 432 is mounted on the outer wall of the second electric push rod 429. A tenth driving motor 430 is arranged outside the second lifting member 428. The output end of the tenth driving motor 430 is fixedly connected to a driving gear 431 that meshes with the passive gear 432. The output end of the second electric push rod 429 is fixedly connected to a connecting frame 433. A fourth lead screw 434 is rotatably connected inside the connecting frame 433. A moving frame 437 and a moving disk 442 are threadedly connected to the fourth lead screw 434. Both the moving frame 437 and the moving disk 442 are slidably connected to a fourth guide rod 435. A third stepping motor 436 for driving the fourth lead screw 434 to rotate is mounted on the outside of the connecting frame 433.

[0031] Please refer to Figure 10 and Figure 11 As shown in the figure, a second threaded rod 438 is rotatably connected inside the moving frame 437. Both ends of the second threaded rod 438 are threadedly connected to fourth clamping members 441. The two groups of fourth clamping members 441 are both slidably connected to a second fixing rod 439. The second fixing rod 439 is welded inside the moving frame 437. A second servo motor 440 for driving the second threaded rod 438 to rotate is arranged outside the moving frame 437. The two groups of fourth clamping members 441 are used to clamp the drilling head. A rotating member 443 is rotatably connected inside the moving disk 442. Internal teeth and external teeth are respectively installed on the inner and outer circumferential surfaces of the rotating member 443. A first gear 444 and several second gears 445 are also rotatably connected inside the moving disk 442. A transmission motor 446 for driving the first gear 444 to rotate is fixedly installed on the inner wall of the moving disk 442. Several toothed plates 447 are also slidably connected inside the moving disk 442. The several toothed plates 447 are respectively meshed with the several second gears 445. The first gear 444 is meshed with the external teeth. The second gears 445 are meshed with the internal teeth. The outer ends of the toothed plates 447 are welded with abutting cross plates 448. An abutting inclined plate 449 is installed at the outer end of the abutting cross plate 448.

[0032] Those skilled in the art can understand that the output end of the second electric lifting rod 427 drives the second lifting member 428 to move up and down, so as to drive the connecting frame 433 to move up and down, thereby driving the drill bit clamped by the two groups of fourth clamping members 441 to move up and down and the overall up and down movement of all the abutting cross plates 448 and abutting inclined plates 449; The output end of the tenth driving motor 430 drives the driving gear 431 to rotate, so that the driven gear 432 and the second electric push rod 429 rotate synchronously as a whole, so that the connecting frame 433, the drill bit, and the overall abutting cross plate 448 and abutting inclined plate 449 rotate with the second electric push rod 429 as the "center"; The output end of the third stepping motor 436 drives the fourth lead screw 434 to rotate, so that the moving frame 437 and the moving disk 442 reciprocate back and forth along the fourth guide rod 435 synchronously, realizing that both the moving frame 437 and the moving disk 442 can move to the middle of the connecting frame 433, and the middle of the connecting frame 433 and the center of the second electric push rod 429 are on the same straight line; The output end of the second servo motor 440 drives the rotating second threaded rod 438 to rotate, so that the two groups of fourth clamping members 441 approach or move away from each other. When approaching, the drill bit is firmly clamped, and when moving away, the clamping of the drill bit is released; The output end of the transmission motor 446 drives the first gear 444 to rotate. The first gear 444 meshes with the external teeth, driving the external teeth, the rotating member 443 and the internal teeth to rotate as a whole, driving all the second gears 445 to rotate synchronously, so that all the toothed plates 447 move synchronously towards the center position of the moving disk 442 or away from the center position of the moving disk 442, thereby driving the overall abutting cross plate 448 and abutting inclined plate 449 to move synchronously towards the center position of the moving disk 442 or away from the center position of the moving disk 442.

[0033] Embodiment 6 Please refer to Figure 12 As shown, the storage mechanism 5 includes a second fixing block 501, a fifth lead screw 502, a fifth guide rod 503 and a storage member 505. Two groups of second fixing blocks 501 are provided and installed on the front and rear sides of the top of the machine body 1. The fifth lead screw 502 is rotatably connected between the two groups of second fixing blocks 501. The fifth guide rod 503 is fixedly installed between the two groups of second fixing blocks 501. The storage member 505 is threadedly connected to the fifth lead screw 502 and is slidably connected to the fifth guide rod 503. A fourth stepping motor 504 for driving the fifth lead screw 502 to rotate is provided on the outside of one of the second fixing blocks 501. A number of milling cutters, grinding heads and drill bits are provided in the storage member 505.

[0034] Those skilled in the art can understand that by driving the fifth lead screw 502 to rotate through the output end of the fourth stepping motor 504, the storage member 505 reciprocates back and forth along the fifth guide rod 503, driving a plurality of groups of milling cutters, grinding heads and drilling heads stored thereon to reciprocate back and forth, and they can all move to the middle of the fifth guide rod 503 in sequence.

[0035] Embodiment 7 Please refer to Figure 13 As shown, the detection mechanism 6 includes a third fixing block 601. Two groups of third fixing blocks 601 are arranged and welded to the rear side of the top of the machine body 1. A sixth lead screw 602 is rotatably connected between the two groups of third fixing blocks 601. A moving member 605 is threadedly connected to the sixth lead screw 602. The moving member 605 is slidably connected to the sixth guide rod 603. The sixth guide rod 603 is welded between the two groups of third fixing blocks 601. A fifth stepping motor 604 for driving the sixth lead screw 602 to rotate is installed on the outside of one of the third fixing blocks 601. A turning motor 606 is arranged on the top of the outside of the moving member 605. The output end of the turning motor 606 is fixedly connected to a turning plate 607. And a third electric push rod 608 is rotatably connected inside the turning plate 607. A motor 610 is arranged on the outer side wall of the turning plate 607. The output end of the motor 610 is fixedly installed with a second driving wheel 611. A second driven wheel 609 is connected to the third electric push rod 608. The second driving wheel 611 is in transmission connection with the second driven wheel 609 through a second belt. The output end of the third electric push rod 608 is fixedly connected to a mounting plate 612. A second double-headed cylinder 613 is fixedly installed on the outside of the mounting plate 612. Both output ends of the second double-headed cylinder 613 are installed with fifth clamping members 614. The two groups of fifth clamping members 614 are used for clamping the thread gauge 615.

[0036] Those skilled in the art can understand that by driving the turning plate 607 to rotate through the output end of the turning motor 606, the turning plate 607 can be in a vertical or horizontal state; by driving the sixth lead screw 602 to rotate through the output end of the fifth stepping motor 604, the moving member 605 reciprocates horizontally left and right, realizing the left and right reciprocating movement of the thread gauge 615; and by controlling the extension or contraction of the two output ends of the second double-headed cylinder 613, the two groups of fifth clamping members 614 approach or move away from each other, thus realizing the rapid installation and disassembly of the thread gauge 615.

[0037] There are two types of screws processed and formed by injection molding machines in real life. One is a single spiral screw, and the other is a secondary spiral screw. As Figure 14 shown, the tail of the single spiral screw is "cylindrical", while the tail of the secondary spiral screw is "conical". In order to clearly describe the working principle of the present invention, we take Figure 1 as the azimuth angle for elaboration, as follows: S1. Drive the shielding frame 107 to rotate upward through the output end of the second drive motor 106, opening the opening at the right end of the sliding frame 105. Clamp the external workpiece with the robotic arm 101 and transfer it into the rotating frame 104. Drive one set of driven gears 304 to rotate through the output end of the third drive motor 306, causing all the second clamping members 307 to move synchronously towards the position close to the center of the first rotating plate 301 to clamp the left end of the workpiece, so that the device can be well applicable to workpieces with different outer diameters for processing; S2. Drive the first lead screw 204 to rotate through the output end of the first stepping motor 205, causing the movable block 206 to move to the right, thereby driving the sliding frame 105 to move to the right along the outer wall of the rotating frame 104, making the workpiece located inside the rotating frame 104 and the sliding frame 105. The output end of the second drive motor 106 rotates in the reverse direction, and the shielding frame 107 covers the opening at the right end of the sliding frame 105, so that the device can be well applicable to workpieces with different lengths for processing; S3. When processing a single spiral diamond screw with a "cylindrical" tail, control the output end of the first electric push rod 108 to extend, causing the two first clamping members 110 to move to the tail of the workpiece. Then, control the two output ends of the first double-headed cylinder 109 to contract to drive the two first clamping members 110 to approach each other and clamp the outer wall of the tail of the workpiece; Drive the second lifting member 428 to move downward through the output end of the second electric lifting rod 427. Then, under the action of the output end of the third stepping motor 436, move the moving frame 437 to the middle of the connecting frame 433, that is, the center of the drilling head and the center of the second electric push rod 429 are on the same straight line. And under the combined use of the output end of the second electric push rod 429 and the output end of the tenth drive motor 430, make the drilling head move to the left and rotate at the same time, so as to drill the right end of the tail of the workpiece; According to the outer diameter of the workpiece, control the rotation of the output end of the second stepping motor 405 to drive the rotation of the third lead screw 406, and then the lifting block 408 reciprocates up and down, so that the milling cutter clamped by the two groups of third clamping members 426 moves to the outer wall of the workpiece. After that, the output end of the second electric lifting rod 427 drives the second lifting member 428 to move downward again, so that the center of the second electric push rod 429 is on the same straight line as the drilling center at the right end of the tail of the workpiece. Under the action of the output end of the third stepping motor 436 again, the moving disk 442 moves to the middle of the connecting frame 433, that is, the center of the moving disk 442 and the center of the second electric push rod 429 are on the same straight line. By extending the output end of the second electric push rod 429, drive all the abutting cross plates 448 and the abutting inclined plates 449 to extend into the drilling hole as a whole, and drive the first gear 444 to rotate through the output end of the transmission motor 446, so that all the abutting cross plates 448 and the abutting inclined plates 449 move synchronously away from the center position of the moving disk 442, and the outer wall of the abutting cross plate 448 abuts against the inner wall of the drilling hole, so as to realize the clamping of the right end of the tail of the workpiece; After that, control the multi-stage electric telescopic rod 409 to drive the milling cutter to move left and right, and the angle of the milling cutter can be adjusted well. Also, drive the first rotating plate 301 to rotate through the output end of the fourth driving motor 308, so as to drive the workpiece in the clamped state to rotate, thus realizing the carving and milling of the thread on the outer wall of the tail of the workpiece. Since both ends of the workpiece are in the clamped state, the carving and milling are more accurate, meeting the needs of the staff. And it should be noted here that during processing, it is also necessary to drive the driving gear 403 to rotate through the output end of the fifth driving motor 404, so that the second rotating plate 401 rotates, which is also a way to drive the milling cutter to rotate. And because the second electric push rod 429 rotates inside the second lifting member 428, there is no problem of movement interference; S4. When processing the secondary spiral screw with a "conical" tail, also clamp the outer wall of the tail of the workpiece by moving the two groups of first clamping members 110 closer to each other. First, use the milling cutter to process a "conical" shape at the tail of the workpiece, and then repeat the above steps. Still let the moving disk 442 move to the middle of the connecting frame 433, and then drive the first gear 444 to rotate through the output end of the transmission motor 446, so that all the abutting cross plates 448 and the abutting inclined plates 449 move synchronously towards the center position of the moving disk 442, and the outer wall of the abutting inclined plate 449 abuts against the "conical" outer wall, so as to realize the clamping of the right end of the tail of the workpiece. After that, use the milling cutter to carve and mill the thread. And because both ends of the workpiece are also in the clamped state, the carving and milling are more accurate, further meeting the needs of the staff; S5. Whether it is the tail processing of the single-screw rhombic screw or the tail processing of the secondary-screw rhombic screw, the "waste chips" generated all fall inside the rotating frame 104 and the sliding frame 105. Then, the output end of the first stepping motor 205 drives the sliding frame 105 to move to the right along the outer wall of the rotating frame 104, so that the right end of the sliding frame 105 moves directly above the waste collection box 111. The output end of the second driving motor 106 drives the shielding frame 107 to rotate upward, opening the opening at the right end of the sliding frame 105. Then, the output end of the first driving motor 103 drives the rotating frame 104 to rotate, making the opening at the right end of the sliding frame 105 tilt downward, thus realizing pouring the "waste chips" into the waste collection box 111 for collection, maintaining the environmental cleanliness and meeting the needs of the staff; S6. During processing, if the milling cutter, grinding head, and drilling head are damaged, the output end of the second driving motor 106 drives the shielding frame 107 to rotate upward by ninety degrees, making the second rotating plate 401 in a horizontal state. The output end of the fourth stepping motor 504 drives the fifth lead screw 502 to rotate, so that the required milling cutter, grinding head, and drilling head can move to the middle of the fifth guide rod 503 in sequence. And under the action of the output end of the second stepping motor 405, two groups of third clamping members 426 or two groups of fourth clamping members 441 can move directly above the middle of the fifth guide rod 503. The output end of the multi-stage electric telescopic rod 409 drives two groups of third clamping members 426 to move downward, and then two groups of third clamping members 426 can clamp the milling cutter or grinding head. Similarly, the output end of the second electric push rod 429 drives two groups of fourth clamping members 441 to move downward, and then two groups of fourth clamping members 441 can clamp the drilling head, which is convenient and fast; S7. And after the single-screw rhombic screw or the secondary-screw rhombic screw is processed, the thread on it can also be detected. The output end of the flipping motor 606 drives the flipping plate 607 to rotate, making the flipping plate 607 in a horizontal state, so that the center of the thread gauge 615 and the center of the single-screw rhombic screw or the secondary-screw rhombic screw are on the same straight line. The output end of the fifth stepping motor 604 drives the sixth lead screw 602 to rotate, making the moving member 605 move horizontally to the left, realizing that the thread gauge 615 moves to the right end position of the single-screw rhombic screw or the secondary-screw rhombic screw. Then, under the cooperation of the motor 610 and the third electric push rod 608, the thread gauge 615 moves to the left and rotates at the same time, observing whether the thread gauge 615 can be screwed onto the single-screw rhombic screw or the secondary-screw rhombic screw. And according to the different thread requirements of processing, the thread gauge 615 can be replaced adaptively. Thus, the present invention realizes the automated batch production of injection molding machine screws, does not require manual operation, has a substantial improvement, and this device is conducive to popularization and use.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw, comprising a machine body (1), characterized in that, A robotic arm (101) for loading and unloading is installed on the front side of the top of the machine body (1). A fixing frame (102) is welded to the left side of the top of the machine body (1). A rotating frame (104) is rotatably connected inside the fixing frame (102). The top of the rotating frame (104) is connected to a sliding frame (105) through a moving mechanism (2). The sliding frame (105) is slidably connected to the outer wall of the rotating frame (104). The right end of the sliding frame (105) is rotatably connected to a shielding frame (107). A left-end clamping mechanism (3) is arranged on the left side inside the rotating frame (104). A processing mechanism (4) and a limiting mechanism are installed on the right side inside the sliding frame (105). A storage mechanism (5) and a detection mechanism (6) are also installed on the top of the machine body (1). A waste collection box (111) is arranged on the right side of the machine body (1).

2. The special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The moving mechanism (2) includes a first fixing block (201) welded to the left side of the top of the rotating frame (104). The right side of the first fixing block (201) is fixedly connected to a connecting block (203) through a first guiding rod (202). A first lead screw (204) is rotatably connected between the connecting block (203) and the first fixing block (201). A moving block (206) is threadedly connected to the first lead screw (204). The bottom of the moving block (206) is welded to the sliding frame (105). The moving block (206) is slidably connected to the first guiding rod (202).

3. A special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The left-end clamping mechanism (3) includes a fourth driving motor (308). The fourth driving motor (308) is installed on the left side of the rotating frame (104). The output end of the fourth driving motor (308) extends into the rotating frame (104) and is fixedly connected to a first rotating plate (301). A plurality of groups of installation grooves are formed on the right side of the first rotating plate (301). A second lead screw (302) is rotatably connected inside the installation groove. A second guiding rod (303) is also fixedly installed inside the installation groove. A second clamping member (307) is slidably connected to the second guiding rod (303). The second clamping member (307) is threadedly connected to the second lead screw (302). The outer end of the second lead screw (302) extends outside the installation groove and is fixedly connected to a driven gear (304). An end face gear (305) is also rotatably connected to the circumferential surface of the first rotating plate (301). A third driving motor (306) is fixedly installed on the first rotating plate (301). The middle of the outer end of one of the driven gears (304) is fixedly connected to the output end of the third driving motor (306).

4. The special-purpose machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The limiting mechanism includes a first electric push rod (108). The first electric push rod (108) is fixedly installed at the bottom end inside the shielding frame (107). The output end of the first electric push rod (108) is fixedly connected to a first double-headed cylinder (109). Both output ends of the first double-headed cylinder (109) are fixedly connected to a first clamping member (110).

5. The special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The processing mechanism (4) includes a second rotating plate (401), the second rotating plate (401) is rotatably connected inside the shielding frame (107), a connecting tooth (402) is fixedly installed at the outer end of the second rotating plate (401), a fifth driving motor (404) is arranged on the inner wall of the shielding frame (107), the connecting tooth (402) meshes with a driving tooth (403), the driving tooth (403) is fixedly installed at the output end of the fifth driving motor (404), and a second stepping motor (405) is connected to the inner wall of the second rotating plate (401). The output end of the second stepping motor (405) is provided with a third lead screw (406), a lifting block (408) is threadedly connected to the third lead screw (406), the lifting block (408) is slidably connected to a third guide rod (407), the third guide rod (407) is welded inside the second rotating plate (401), a multi-stage electric telescopic rod (409) is fixedly connected to the left side of the lifting block (408), and a moving plate (410) is fixedly connected to the end sliding rod of the multi-stage electric telescopic rod (409). When the multi-stage electric telescopic rod (409) is fully extended, the length of the multi-stage electric telescopic rod (409) is adapted to the sum of the lengths of the rotating frame (104) and the sliding frame (105).

6. The special-purpose machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 5, wherein, A first electric lifting rod (411) is rotatably connected inside the moving plate (410), the output end of the first electric lifting rod (411) is fixedly connected to a first lifting member (415), a hair dryer (416) is installed at the bottom of the first lifting member (415), a seventh driving motor (417) is installed on the left side of the first lifting member (415), the output end of the seventh driving motor (417) is fixedly connected to a mounting frame (418), a connecting member (420) is rotatably connected inside the mounting frame (418), and a ninth driving motor (421) is arranged at the outer end of the connecting member (420). The output end of the ninth driving motor (421) is provided with a fixed frame (422), a first threaded rod (423) is rotatably connected inside the fixed frame (422), the thread directions of the two ends of the first threaded rod (423) are opposite, a first fixed rod (424) is further installed inside the fixed frame (422), two groups of third clamping members (426) are slidably connected to the first fixed rod (424), and the two groups of third clamping members (426) are respectively threadedly connected to the two ends of the outer surface of the first threaded rod (423). The two groups of third clamping members (426) are used for clamping a milling cutter or a grinding head.

7. A special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 5, characterized in that, A second electric lifting rod (427) is fixedly connected to the mounting rod of the multi-stage electric telescopic rod (409). The output end of the second electric lifting rod (427) is fixedly connected to a second lifting member (428). A second electric push rod (429) is rotatably connected inside the second lifting member (428). A passive gear (432) is mounted on the outer wall of the second electric push rod (429). A tenth driving motor (430) is arranged outside the second lifting member (428). The output end of the tenth driving motor (430) is fixedly connected to a driving gear (431) that meshes with the passive gear (432). The output end of the second electric push rod (429) is fixedly connected to a connecting frame (433). A fourth lead screw (434) is rotatably connected inside the connecting frame (433). A moving frame (437) and a moving disk (442) are threadedly connected to the fourth lead screw (434). The moving frame (437) and the moving disk (442) are both slidably connected to a fourth guide rod (435).

8. A special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 7, characterized in that, A second threaded rod (438) is rotatably connected inside the moving frame (437). Two fourth clamping members (441) are threadedly connected to both ends of the second threaded rod (438). The two groups of fourth clamping members (441) are both slidably connected to a second fixing rod (439). The second fixing rod (439) is welded inside the moving frame (437). The two groups of fourth clamping members (441) are used to clamp a drill bit. A rotating member (443) is rotatably connected inside the moving disk (442). Inner teeth and outer teeth are respectively installed on the inner and outer circumferential surfaces of the rotating member (443). A group of first gears (444) and several groups of second gears (445) are also rotatably connected inside the moving disk (442). A transmission motor (446) for driving the first gear (444) to rotate is fixedly installed on the inner wall of the moving disk (442). Several groups of toothed plates (447) are also slidably connected inside the moving disk (442). The several groups of toothed plates (447) are respectively meshed with the several groups of second gears (445). The first gear (444) is meshed with the outer teeth. The second gear (445) is meshed with the inner teeth. The outer end of the toothed plate (447) is welded with an abutting cross plate (448). An abutting inclined plate (449) is installed at the outer end of the abutting cross plate (448).

9. The special machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The storage mechanism (5) includes second fixing blocks (501), a fifth lead screw (502), a fifth guide rod (503), and a storage member (505). Two groups of second fixing blocks (501) are arranged on the front and rear sides of the top of the machine body (1). The fifth lead screw (502) is rotatably connected between the two groups of second fixing blocks (501). The fifth guide rod (503) is fixedly installed between the two groups of second fixing blocks (501). The storage member (505) is threadedly connected to the fifth lead screw (502). The storage member (505) is slidably connected to the fifth guide rod (503). Several groups of milling cutters, grinding heads, and drill bits are arranged inside the storage member (505).

10. The special-purpose machine for high-precision turning, milling and grinding of the tail part of an injection molding machine screw according to claim 1, characterized in that, The detection mechanism (6) includes a third fixed block (601). Two sets of the third fixed blocks (601) are arranged and welded to the rear side of the top of the machine body (1). A sixth lead screw (602) is rotatably connected between the two sets of third fixed blocks (601). A moving member (605) is threadedly connected to the sixth lead screw (602). The moving member (605) is slidably connected to a sixth guide rod (603). The sixth guide rod (603) is welded between the two sets of third fixed blocks (601). A turnover motor (606) is arranged on the outer top of the moving member (605). The output end of the turnover motor (606) is fixedly connected to a turnover plate (607). A third electric push rod (608) is rotatably connected inside the turnover plate (607). A motor (610) is arranged on the outer side wall of the turnover plate (607). The output end of the motor (610) is fixedly installed with a second driving wheel (611). A second driven wheel (609) is connected to the third electric push rod (608). The second driving wheel (611) is in transmission connection with the second driven wheel (609) through a second belt. The output end of the third electric push rod (608) is fixedly connected to a mounting plate (612). A second double-headed cylinder (613) is fixedly installed on the outer side of the mounting plate (612). Two output ends of the second double-headed cylinder (613) are both installed with fifth clamping members (614). The two sets of fifth clamping members (614) are used for clamping a thread gauge (615).

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