Turn-milling combined machining device for production of injection molding screw

Abstract

The turning and milling combined machining device for injection molding screw production comprises a machine body and is characterized in that two sets of supporting plates are fixedly installed on the left side of the top end of the machine body, and a machining box is rotationally connected between the two sets of supporting plates. The device has the turning and milling functions and is well suitable for production of single-screw rhomboid screws and auxiliary-screw rhomboid screws of an injection molding machine, the auxiliary ring is installed in the middle of a workpiece raw material firstly, then the auxiliary thread gauge is installed in the middle of the workpiece raw material, on one hand, the good sealing performance of a machining box is guaranteed, and on the other hand, the machining efficiency is improved; on the other hand, complete and continuous threads can be formed in workpiece raw materials, the machining device is also suitable for machining and production of long workpiece raw materials, machining boxes with different lengths do not need to be replaced, the machining application range is wider, and the machining efficiency is improved. The whole process is automatically operated, and the requirements of workers are met.

Description

Technical Field

[0001] The present invention relates to the technical field of screw processing, and in particular to a turning-milling composite processing device for the production of injection screws. Background Art

[0002] The injection screw is an important component of an injection molding machine, and its function is to convey, compact, melt, stir, and apply pressure to plastics.

[0003] Currently, when processing injection screws, in order to prevent the chips generated during processing from splashing, it is usually carried out inside a box. However, since the lengths of the workpiece raw materials to be processed are different, the staff needs to replace processing devices of different lengths. This method results in a relatively high production cost for the enterprise, and also reduces the applicability of the device. There is also another method. When the workpiece raw material is relatively long, the staff sends one end of the workpiece raw material into the box, exposes the other end of the workpiece raw material, and seals it well. After the processing at this end is completed, if continuous threads need to be processed on the workpiece, the workpiece raw material is turned around and sealed again. This method is rather troublesome, time-consuming and laborious, and has a low degree of automation. Summary of the Invention

[0004] To solve the above technical problems, a turning-milling composite processing device for the production of injection screws is provided, and this technical solution solves the problems raised in the above background art.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A turning-milling composite processing device for the production of injection screws, including a machine body. It is characterized in that two groups of support plates are fixedly installed on the left side of the top of the machine body, a processing box is rotatably connected between the two groups of support plates, a processing mechanism is arranged at the top inside the processing box, a first driving motor for driving the processing box to rotate is arranged on the front side of one of the processing boxes, a robotic arm for feeding is installed on the right side of the top of the machine body, a feeding mechanism, a first auxiliary mechanism, and a second auxiliary mechanism are installed between the robotic arm and the processing box, and the first auxiliary mechanism and the second auxiliary mechanism are respectively located on the back and the front side of the feeding mechanism.

[0006] Preferably, an inclined surface is arranged at the bottom inside the processing box, a discharge port is formed through the bottom on the left side of the processing box, a cover plate is installed outside the discharge port, the middle of the top of the cover plate is fixedly connected to the output end of a cylinder, the cylinder is arranged on the left side of the processing box, and a first sealing groove is formed on the right side of the processing box.

[0007] Preferably, the feeding mechanism includes two groups of first fixing blocks welded to the top of the machine body. A first lead screw is rotatably connected between the two groups of first fixing blocks. A movable block is threadedly connected to the first lead screw. The movable block is slidably connected to a first guide rod. Two ends of the first guide rod are respectively fixedly connected to the inner walls of the two groups of first fixing blocks. A first stepping motor for driving the first lead screw to rotate is arranged on the outer side wall of one of the first fixing blocks. A second driving motor is installed on the top of the movable block. An output end of the second driving motor is fixedly installed with a connecting frame.

[0008] Preferably, a first threaded rod is rotatably connected inside the connecting frame. Thread rotation directions of two ends of the first threaded rod are opposite. Clamping members are threadedly connected to both ends of the outer surface of the first threaded rod. A first fixing rod is also welded inside the connecting frame. The clamping members are slidably connected to the first fixing rod. An outer end of the first threaded rod is fixedly connected to an output end of a first servo motor. The first servo motor is fixedly installed on the outer side of the connecting frame.

[0009] Preferably, the processing mechanism includes a second lead screw, a second guide rod and a movable member. The second lead screw is rotatably connected to the inner top of the processing box. The second guide rod is fixedly installed on the inner top of the processing box. The movable member is threadedly connected to the outer surface of the second lead screw. The movable member is slidably connected to the outer surface of the second guide rod. A second stepping motor is installed on the left top of the processing box. An output end of the second stepping motor extends into the processing box and is fixedly connected to the second lead screw. A first rotating gear ring is rotatably connected inside the movable member. A first electric push rod is installed on the outer side of the first rotating gear ring. An output end of the first electric push rod is connected to a mounting seat. A milling cutter is rotatably connected inside the mounting seat. A third driving motor is arranged on the outer side of the movable member. An output end of the third driving motor is fixedly installed with a first driving gear meshing with the first rotating gear ring. A second electric push rod is also arranged on the outer side of the movable member. An output end of the second electric push rod is fixedly connected to a turning tool.

[0010] Preferably, the first auxiliary mechanism includes a fixing member welded to the rear side of the top of the machine body. A third electric push rod is arranged on the outer side of the fixing member. An output end of the third electric push rod is fixedly connected to a fixing frame. A second threaded rod is rotatably connected inside the fixing frame. Thread rotation directions of two ends of the second threaded rod are opposite. A second fixing rod is also fixedly connected inside the fixing frame. Two clamping blocks are slidably connected to the second fixing rod. The two clamping blocks are respectively threadedly connected to both ends of the outer surface of the second threaded rod. A second servo motor is arranged on the outer side of the fixing frame. An outer end of the second threaded rod is fixedly installed on an output end of the second servo motor.

[0011] Preferably, the first auxiliary mechanism further includes an auxiliary ring. A clamping groove adapted to the clamping block is formed on the outer side of the auxiliary ring. A first sealing ring adapted to the first sealing groove is installed on one side of the auxiliary ring close to the processing box. A second rotating gear ring is rotatably connected inside the auxiliary ring. A fourth driving motor is fixedly installed inside the auxiliary ring. The output end of the fourth driving motor is fixedly connected to a second driving gear. The second driving gear meshes with the second rotating gear ring. Two groups of second fixing blocks are welded on the outer side of the second rotating gear ring. A third threaded rod is rotatably connected between the two groups of second fixing blocks. The thread directions of the two ends of the third threaded rod are opposite. Clamping plates are threadedly connected to both ends of the outer surface of the third threaded rod. A third servo motor for driving the third threaded rod to rotate is arranged on the outer side wall of one of the second fixing blocks. The clamping plates are slidably connected to a third fixing rod. The third fixing rod is welded between the two groups of second fixing blocks.

[0012] Preferably, a fourth threaded rod is also rotatably connected to the outer side of the auxiliary ring. Clamping blocks are threadedly connected to both ends of the outer surface of the fourth threaded rod. The clamping blocks are slidably connected to a fourth fixing rod. The fourth fixing rod is fixedly installed on the outer side of the auxiliary ring. The thread directions of the two ends of the fourth threaded rod are opposite. A fourth servo motor is arranged on the outer side wall of the auxiliary ring. The outer end of the fourth threaded rod is fixedly installed at the output end of the fourth servo motor. And sealing gaskets are detachably connected to the sides of the two clamping blocks close to each other.

[0013] Preferably, the second auxiliary mechanism includes two groups of third fixing blocks fixedly connected to the top of the machine body. A third lead screw is rotatably connected between the two groups of third fixing blocks. A movable plate is threadedly connected to the third lead screw. The movable plate is slidably connected to a third guide rod. The two ends of the third guide rod are respectively fixedly connected to the inner walls of the two groups of third fixing blocks. The outer end of the third lead screw is fixedly connected to the output end of a third stepping motor. The third stepping motor is arranged on the outer side wall of one of the third fixing blocks. A fourth electric push rod is arranged on the outer side of the movable plate. The output end of the fourth electric push rod is fixedly installed with a moving plate.

[0014] Preferably, a third rotating gear ring is rotatably connected inside the moving plate. A fifth driving motor is arranged on the outer side of the moving plate. The output end of the fifth driving motor is fixedly connected with a third driving gear meshing with the third rotating gear ring. A fifth threaded rod is rotatably connected to the outer side of the third rotating gear ring. A fifth fixing rod is also fixedly connected to the outer side of the third rotating gear ring. Two groups of clamping strips are slidably connected to the fifth fixing rod. The two groups of clamping strips are respectively threadedly connected to both ends of the outer surface of the fifth threaded rod, and the thread directions of both ends of the fifth threaded rod are opposite. The two groups of clamping strips are used for clamping the auxiliary thread gauge. A second sealing ring adapted to the first sealing groove is also installed on the side of the auxiliary thread gauge close to the processing box. A fifth servo motor for driving the fifth threaded rod to rotate is arranged on the outer side of the third rotating gear ring.

[0015] Compared with the prior art, the present invention provides a turning and milling compound processing device for producing injection molding screws, which has the following beneficial effects: Using the set of devices in the present invention, which has both turning and milling functions and is well applicable to the production of single-screw and secondary-screw of injection molding machines. First, an auxiliary ring is installed in the middle of the workpiece raw material, and then an auxiliary thread gauge is installed in the middle of the workpiece raw material. On the one hand, it ensures good sealing of the processing box, avoids the generated debris from splashing out of the processing box, and is convenient for collecting and cleaning the debris. On the other hand, it can realize the opening of complete and continuous threads on the workpiece raw material. The present invention is also applicable to the processing and production of longer workpiece raw materials, without the need to replace processing boxes of different lengths, and has a stronger processing applicability range. The whole process is automated, convenient and fast, meeting the needs of the staff. 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 external structure of the processing box in the present invention; Figure 3 is a schematic diagram of the internal structure of the processing box in the present invention; Figure 4 is a schematic diagram of the structure of the feeding mechanism in the present invention; Figure 5 is a schematic diagram of the internal structure of the connecting frame in the present invention; Figure 6 is a schematic diagram of the structure of the processing mechanism in the present invention; Figure 7 is a schematic diagram of the structure of the moving part in the present invention; Figure 8 is a schematic diagram of the structure of the first auxiliary mechanism in the present invention; Figure 9 is a schematic diagram of the structure of the first sealing groove in the present invention; Figure 10 Schematic structural diagram of the gasket in the present invention; Figure 11 Internal structural diagram of the auxiliary ring in the present invention; Figure 12 Schematic structural diagram of the second rotating gear ring in the present invention; Figure 13 Schematic structural diagram of the second auxiliary mechanism in the present invention; Figure 14 Schematic structural diagram of the third rotating gear ring in the present invention; Figure 15 Schematic structural diagram of the auxiliary thread gauge in the present invention; Figure 16 Schematic structural diagram of the single spiral rhombus screw rod and the auxiliary spiral rhombus screw rod in the present invention.

[0017] The reference numerals in the figure are: 1, body; 101, robotic arm; 102, support plate; 103, processing box; 104, first driving motor; 105, cover plate; 106, cylinder; 107, first sealing groove; 2, feeding mechanism; 201, first fixing block; 202, first lead screw; 203, first guide rod; 204, first stepping motor; 205, movable block; 206, second driving motor; 207, connecting frame; 208, first threaded rod; 209, first fixing rod; 210, first servo motor; 211, clamping member; 3, processing mechanism; 301, second lead screw; 302, second guide rod; 303, second stepping motor; 304, movable member; 305, first rotating gear ring; 306, third driving motor; 307, first driving gear; 308, first electric push rod; 309, milling cutter; 310, second electric push rod; 311, turning tool; 4, first auxiliary mechanism; 401, fixing member; 402, third electric push rod; 403, fixing frame; 404, second threaded rod; 405, second fixing rod; 406, second servo motor; 407, clamping block; 408, auxiliary ring; 409, clamping groove; 410, first sealing ring; 411, second rotating gear ring; 412, fourth driving motor; 413, second driving gear; 414, second fixing block; 415, third threaded rod; 416, third fixing rod; 417, third servo motor; 418, clamping plate; 419, fourth threaded rod; 420, fourth fixing rod; 421, fourth servo motor; 422, clamping block; 423, gasket; 5. Second auxiliary mechanism; 501. Third fixed block; 502. Third lead screw; 503. Third guide rod; 504. Third stepping motor; 505. Movable plate; 506. Fourth electric push rod; 507. Moving plate; 508. Third rotating gear ring; 509. Fifth driving motor; 510. Third driving gear; 511. Fifth threaded rod; 512. Fifth fixed rod; 513. Fifth servo motor; 514. Clamping strip; 515. Auxiliary thread gauge; 516. Second sealing ring. 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 variations.

[0019] Embodiment 1 Please refer to Figures 1 - 15 As shown, a turning-milling composite machining device for producing injection molding screws includes a machine body 1. It is characterized in that two groups of support plates 102 are fixedly installed on the left side of the top of the machine body 1. A machining box 103 is rotatably connected between the two groups of support plates 102. A machining mechanism 3 is arranged at the top end inside the machining box 103. A first driving motor 104 for driving the machining box 103 to rotate is arranged on the front side of one of the machining boxes 103. A robotic arm 101 for feeding is installed on the right side of the top of the machine body 1. A feeding mechanism 2, a first auxiliary mechanism 4 and a second auxiliary mechanism 5 are installed between the robotic arm 101 and the machining box 103, and the first auxiliary mechanism 4 and the second auxiliary mechanism 5 are respectively located at the back and the front side of the feeding mechanism 2.

[0020] Please refer to Figure 2 and Figure 9 As shown, an inclined surface is arranged at the bottom end inside the machining box 103. A discharge port is penetrated and opened at the left bottom of the machining box 103. A cover plate 105 is installed outside the discharge port. The middle part of the top end of the cover plate 105 is fixedly connected to the output end of a cylinder 106. The cylinder 106 is arranged on the left side of the machining box 103, and a first sealing groove 107 is opened on the right side of the machining box 103.

[0021] Embodiment 2 Please refer to Figure 4As shown in the figure, the feeding mechanism 2 includes two groups of first fixing blocks 201 welded to the top of the machine body 1. A first lead screw 202 is rotatably connected between the two groups of first fixing blocks 201. A moving block 205 is threadedly connected to the first lead screw 202. The moving block 205 is slidably connected to a first guide rod 203. Two ends of the first guide rod 203 are respectively fixedly connected to the inner walls of the two groups of first fixing blocks 201. A first stepping motor 204 for driving the first lead screw 202 to rotate is arranged on the outer side wall of one of the first fixing blocks 201. A second driving motor 206 is installed on the top of the moving block 205. The output end of the second driving motor 206 is fixedly installed with a connecting frame 207.

[0022] Please refer to Figure 5 As shown in the figure, a first threaded rod 208 is rotatably connected in the connecting frame 207. The thread directions of the two ends of the first threaded rod 208 are opposite. Clamping members 211 are threadedly connected to both ends of the outer surface of the first threaded rod 208. A first fixing rod 209 is also welded in the connecting frame 207. The clamping members 211 are slidably connected to the first fixing rod 209. The outer end of the first threaded rod 208 is fixedly connected to the output end of a first servo motor 210. The first servo motor 210 is fixedly installed on the outside of the connecting frame 207.

[0023] Those skilled in the art can understand that by driving the first lead screw 202 to rotate through the output end of the first stepping motor 204, the moving block 205 reciprocates horizontally left and right along the surface of the first guide rod 203, driving the two groups of clamping members 211 to reciprocate horizontally left and right; by driving the first threaded rod 208 to rotate through the output end of the first servo motor 210, the two groups of clamping members 211 approach or separate from each other. When the two groups of clamping members 211 approach, clamping of the workpiece raw material is achieved, and when the two groups of clamping members 211 separate, clamping of the workpiece raw material is released.

[0024] Embodiment 3 Please refer to Figure 4As shown in the figure, the processing mechanism 3 includes a second lead screw 301, a second guide rod 302 and a movable member 304. The second lead screw 301 is rotatably connected to the inner top of the processing box 103. The second guide rod 302 is fixedly installed at the inner top of the processing box 103. The movable member 304 is threadedly connected to the outer surface of the second lead screw 301 and slidably connected to the outer surface of the second guide rod 302. A second stepping motor 303 is installed at the left top of the processing box 103. The output end of the second stepping motor 303 extends into the processing box 103 and is fixedly connected to the second lead screw 301. A first rotating gear ring 305 is rotatably connected to the inside of the movable member 304. A first electric push rod 308 is installed on the outer side of the first rotating gear ring 305. The output end of the first electric push rod 308 is connected to a mounting seat, and a milling cutter 309 is rotatably connected to the mounting seat. A third driving motor 306 is arranged on the outer side of the movable member 304. The output end of the third driving motor 306 is fixedly installed with a first driving gear 307 meshing with the first rotating gear ring 305. And a second electric push rod 310 is also arranged on the outer side of the movable member 304. The output end of the second electric push rod 310 is fixedly connected to a turning tool 311.

[0025] Those skilled in the art can understand that by driving the second lead screw 301 to rotate through the output end of the second stepping motor 303, the movable member 304 makes a horizontal reciprocating movement left and right, realizing driving the milling cutter 309 and the turning tool 311 to make a horizontal reciprocating movement left and right. According to processing common sense, turning is to process a rotating workpiece, while milling is that the workpiece is fixed and the milling cutter rotates around the workpiece for processing. Therefore, in the present invention, by driving the first driving gear 307 to rotate through the output end of the third driving motor 306, the first rotating gear ring 305 rotates, driving the milling cutter 309 to rotate around the center of the first rotating gear ring 305, providing a prerequisite for the "milling" operation of the processing.

[0026] Embodiment 4 Please refer to Figure 4 As shown in the figure, the first auxiliary mechanism 4 includes a fixing member 401 welded to the rear side of the top of the machine body 1. A third electric push rod 402 is arranged on the outer side of the fixing member 401. The output end of the third electric push rod 402 is fixedly connected to a fixing frame 403. A second threaded rod 404 is rotatably connected to the inside of the fixing frame 403. The thread directions of the two ends of the second threaded rod 404 are opposite. A second fixing rod 405 is also fixedly connected to the fixing frame 403. Two groups of clamping blocks 407 are slidably connected to the second fixing rod 405. The two groups of clamping blocks 407 are respectively threadedly connected to the two ends of the outer surface of the second threaded rod 404. A second servo motor 406 is arranged on the outer side of the fixing frame 403. The outer end of the second threaded rod 404 is fixedly installed at the output end of the second servo motor 406.

[0027] Those skilled in the art can understand that, in the initial state, the two sets of clamping blocks 407 are stuck inside the clamping grooves 409 opened on the auxiliary ring 408. By driving the second threaded rod 404 to rotate through the output end of the second servo motor 406, the two sets of clamping blocks 407 move closer to or away from each other. When the two sets of clamping blocks 407 move away, they respectively disengage from the clamping grooves 409, realizing the release of the clamping on the auxiliary ring 408. And by controlling the extension or contraction of the output end of the third electric push rod 402, the two sets of clamping blocks 407 are driven to move forward or to the right.

[0028] Please refer to Figure 11 and Figure 12 As shown in the figure, the first auxiliary mechanism 4 further includes an auxiliary ring 408. A clamping groove 409 adapted to the clamping block 407 is opened on the outer side of the auxiliary ring 408. A first sealing ring 410 adapted to the first sealing groove 107 is installed on the side of the auxiliary ring 408 close to the processing box 103. And a second rotating gear ring 411 is rotatably connected inside the auxiliary ring 408. A fourth driving motor 412 is fixedly installed inside the auxiliary ring 408. The output end of the fourth driving motor 412 is fixedly connected to a second driving gear 413. The second driving gear 413 meshes with the second rotating gear ring 411. Two second fixing blocks 414 are welded on the outer side of the second rotating gear ring 411. A third threaded rod 415 is rotatably connected between the two second fixing blocks 414. The thread directions of the two ends of the third threaded rod 415 are opposite. Clamping plates 418 are threadedly connected to both ends of the outer surface of the third threaded rod 415. A third servo motor 417 for driving the third threaded rod 415 to rotate is arranged on the outer side wall of one of the second fixing blocks 414. The clamping plate 418 is slidably connected to a third fixing rod 416. The third fixing rod 416 is welded between the two second fixing blocks 414.

[0029] Those skilled in the art can understand that when the left end of the workpiece raw material penetrates into the inside of the auxiliary ring 408, by driving the third threaded rod 415 to rotate through the output end of the third servo motor 417, the two sets of clamping plates 418 move closer to each other to clamp and fix the workpiece raw material, and the two sets of clamping blocks 407 release the clamping on the auxiliary ring 408, realizing the installation of the auxiliary ring 408 on the outer surface of the workpiece raw material. And by driving the second driving gear 413 to rotate through the output end of the fourth driving motor 412, the second rotating gear ring 411 rotates, driving the workpiece raw material to rotate, providing a prerequisite for the "turning" operation of the processing.

[0030] Please refer to Figure 10As shown, a fourth threaded rod 419 is rotatably connected to the outside of the auxiliary ring 408. Clamping blocks 422 are threadedly connected to both ends of the outer surface of the fourth threaded rod 419. The clamping blocks 422 are slidably connected to the fourth fixing rod 420. The fourth fixing rod 420 is fixedly installed on the outside of the auxiliary ring 408. The thread directions of the threads opened at both ends of the fourth threaded rod 419 are opposite. A fourth servo motor 421 is provided on the outer wall of the auxiliary ring 408. The outer end of the fourth threaded rod 419 is fixedly installed at the output end of the fourth servo motor 421. And detachable sealing gaskets 423 are connected to the sides of the two clamping blocks 422 that are close to each other.

[0031] Those skilled in the art can understand that when the left end of the workpiece raw material penetrates into the interior of the auxiliary ring 408, a hole is provided on the right side of the auxiliary ring 408. In order to prevent the debris generated during the processing from splashing out of the auxiliary ring 408, the present invention drives the fourth threaded rod 419 to rotate through the output end of the fourth servo motor 421, so that the two clamping blocks 422 approach each other, driving the two sealing gaskets 423 to approach each other, wrapping the surface of the workpiece raw material. The function here is not clamping, and it will not affect the rotation of the workpiece raw material during processing. Moreover, the sealing gasket 423 is detachable. Just select a sealing gasket 423 that fits the workpiece raw material with different outer diameters for processing, which improves the practicability of the device.

[0032] Embodiment 5 Please refer to Figure 13 As shown, the second auxiliary mechanism 5 includes two third fixing blocks 501 fixedly connected to the top of the machine body 1. A third lead screw 502 is rotatably connected between the two third fixing blocks 501. A movable plate 505 is threadedly connected to the third lead screw 502. The movable plate 505 is slidably connected to the third guide rod 503. Both ends of the third guide rod 503 are fixedly connected to the inner walls of the two third fixing blocks 501. The outer end of the third lead screw 502 is fixedly connected to the output end of the third stepping motor 504. The third stepping motor 504 is provided on the outer wall of one of the third fixing blocks 501. A fourth electric push rod 506 is provided on the outside of the movable plate 505. The output end of the fourth electric push rod 506 is fixedly installed with a moving plate 507.

[0033] Please refer to Figure 14 and Figure 15As shown in the figure, a third rotating gear ring 508 is rotatably connected inside the moving plate 507. A fifth driving motor 509 is arranged on the outer side of the moving plate 507. The output end of the fifth driving motor 509 is fixedly connected with a third driving gear 510 that meshes with the third rotating gear ring 508. A fifth threaded rod 511 is rotatably connected to the outer side of the third rotating gear ring 508. A fifth fixing rod 512 is also fixedly connected to the outer side of the third rotating gear ring 508. Two groups of clamping strips 514 are slidably connected to the fifth fixing rod 512. The two groups of clamping strips 514 are respectively threadedly connected to both ends of the outer surface of the fifth threaded rod 511, and the thread directions of the two ends of the fifth threaded rod 511 are opposite. The two groups of clamping strips 514 are used to clamp the auxiliary thread gauge 515. A second sealing ring 516 adapted to the first sealing groove 107 is also installed on the side of the auxiliary thread gauge 515 close to the processing box 103. A fifth servo motor 513 for driving the fifth threaded rod 511 to rotate is arranged on the outer side of the third rotating gear ring 508.

[0034] Those skilled in the art can understand that the output end of the third stepping motor 504 drives the third lead screw 502 to rotate, so that the movable plate 505 reciprocates horizontally left and right along the surface of the third guide rod 503, driving the auxiliary thread gauge 515 to reciprocate horizontally left and right; the output end of the fifth servo motor 513 drives the fifth threaded rod 511 to rotate, so that the two groups of clamping strips 514 approach or move away from each other. When approaching, the auxiliary thread gauge 515 is quickly clamped and installed, and when moving away, the installation of the auxiliary thread gauge 515 is released; and the output end of the fifth driving motor 509 drives the third driving gear 510 to rotate, so that the third rotating gear ring 508 rotates, thereby driving the clamped auxiliary thread gauge 515 to rotate.

[0035] There are two types of screws processed by injection molding machines in real life. One is a single spiral screw, and the other is a secondary spiral screw. As Figure 16 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 will describe it from the Figure 1 perspective as follows: (I) Processing of the secondary spiral screw: When processing the secondary spiral screw with a "conical" tail, a "turning" operation is required: S1. The robotic arm 101 clamps and transfers the external workpiece raw material to be processed, and keeps the workpiece raw material in a horizontal state and located between the two groups of clamping members 211. By the elongation of the output end of the third electric push rod 402, the two groups of clamping blocks 407 and the auxiliary ring 408 are driven to move forward, so that the center of the auxiliary ring 408 coincides with the center of the workpiece raw material. The robotic arm 101 pushes the workpiece raw material to the left, so that the auxiliary ring 408 is located in the middle of the workpiece raw material; S2. Drive the third threaded rod 415 to rotate through the output end of the third servo motor 417, so that the two clamping plates 418 approach each other, install the workpiece raw material on the second rotating gear ring 411, drive the second threaded rod 404 to rotate through the output end of the second servo motor 406, so that the two clamping blocks 407 move away from each other and disengage from the clamping slots 409 respectively, release the clamping of the auxiliary ring 408, and also realize installing the auxiliary ring 408 in the middle of the workpiece raw material. The output end of the third electric push rod 402 resets, and then drive the fourth threaded rod 419 to rotate through the output end of the fourth servo motor 421, so that the two clamping blocks 422 approach each other, drive the two sealing gaskets 423 to approach each other, and wrap the surface of the workpiece raw material. Here, the function is not clamping and will not affect the rotation of the workpiece raw material during the "turning" operation; S3. Drive the first lead screw 202 to rotate through the output end of the first stepping motor 204, so that the moving block 205 and the two clamping members 211 move to the left as a whole, so that the two clamping members 211 move to the position of the auxiliary ring 408 and are located on the front and rear sides of the auxiliary ring 408. Drive the first threaded rod 208 to rotate through the output end of the first servo motor 210, so that the two clamping members 211 approach each other to clamp the auxiliary ring 408, and the robotic arm 101 releases the clamping of the workpiece raw material; S4. Continue to drive the moving block 205 and the two clamping members 211 to move to the left as a whole through the output end of the first stepping motor 204, so that the auxiliary ring 408 and the workpiece raw material move to the left as a whole. The first sealing ring 410 on the auxiliary ring 408 is stuck inside the first sealing groove 107. Then drive the second driving gear 413 to rotate through the output end of the fourth driving motor 412, so that the second rotating gear ring 411 rotates, driving the workpiece raw material to rotate. At the same time, control the extension of the output end of the second electric push rod 310 to drive the turning tool 311 to approach the left end of the workpiece raw material, so as to machine a "cone" at the left end of the workpiece raw material; When threading on the outer surface of the secondary screw, a "milling" operation is required: S5. The output end of the fourth driving motor 412 no longer drives the second rotating gear ring 411 to rotate, so that the workpiece raw material is in a clamped and fixed state. With the cooperation of the rotating milling cutter 309 and the output end of the second stepping motor 303, thread is machined on the outer surface of the secondary screw; S6. Since the other half of the workpiece raw material is outside the processing box 103, if it is still necessary to completely machine a thread on the other half, the output end of the first stepping motor 204 drives the auxiliary ring 408 and the whole workpiece raw material to move to the right to reset. The robotic arm 101 clamps the right end of the workpiece raw material. The two groups of clamping blocks 407 re-clamp the auxiliary ring 408 and reach the reset state. The output end of the fourth electric push rod 506 extends to drive the moving plate 507 to move backward. The center of the auxiliary thread gauge 515 is concentric with the center of the workpiece raw material. Under the action of the output end of the fifth driving motor 509, the clamped auxiliary thread gauge 515 is driven to rotate. At the same time, the output end of the third stepping motor 504 drives the third lead screw 502 to rotate, so that the auxiliary thread gauge 515 moves to the right, thereby realizing the thread connection between the auxiliary thread gauge 515 and the thread machined on the workpiece raw material, and the auxiliary thread gauge 515 is located in the middle of the workpiece raw material; S7. The output end of the first servo motor 210 drives the first threaded rod 208 to rotate, so that the two groups of clamping members 211 approach each other, realizing the clamping of the outer wall of the third rotating gear ring 508. And continue to drive the movable block 205 and the two groups of clamping members 211 as a whole to move to the left through the output end of the first stepping motor 204, so that the third rotating gear ring 508, the auxiliary thread gauge 515 and the whole workpiece raw material move to the left. The second sealing ring 516 on the auxiliary thread gauge 515 is also stuck inside the first sealing groove 107. The purpose of this is that on the one hand, during the subsequent "milling" operation, the generated debris cannot pass through the auxiliary thread gauge 515. If the auxiliary thread gauge 515 is not used, since threads have been machined on the workpiece raw material, the two sealing gaskets 423 cannot tightly wrap the surface of the workpiece raw material, and the generated debris is very likely to pass through the threads of the workpiece raw material. On the other hand, it can realize the machining of a complete and continuous thread on the workpiece raw material, meeting the needs of the staff.

[0036] (2) Single-spiral-ridge screw machining: Similar to the steps of the auxiliary-spiral-ridge screw machining, the "turning" operation is reduced, and only the "milling" operation is required.

[0037] It should also be mentioned that in the present invention, whether it is single-spiral-ridge screw machining or auxiliary-spiral-ridge screw machining, the generated debris will only fall inside the processing box 103. And with the cooperation of the inclined surface arranged at the inner bottom end of the processing box 103, the output end of the air cylinder 106 and the output end of the first driving motor 104, the debris can quickly slide down into the collection box at the bottom, which is convenient and fast, and the whole process is automated.

[0038] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. 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, various changes and improvements will occur to the present invention, and these changes and improvements all 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 turning-milling composite machining device for manufacturing an injection molding screw, comprising a machine body (1), characterized in that, On the left side of the top of the body (1), two sets of support plates (102) are fixedly installed. A processing box (103) is rotatably connected between the two sets of support plates (102). At the top inner part of the processing box (103), a processing mechanism (3) is provided. At the front side of one of the processing boxes (103), a first driving motor (104) for driving the rotation of the processing box (103) is provided. On the right side of the top of the body (1), a robotic arm (101) for feeding is installed. A feeding mechanism (2), a first auxiliary mechanism (4) and a second auxiliary mechanism (5) are installed between the robotic arm (101) and the processing box (103), and the first auxiliary mechanism (4) and the second auxiliary mechanism (5) are respectively located at the back and the front side of the feeding mechanism (2).

2. The turning-milling compound machining device for producing injection molding screws according to claim 1, characterized in that, At the bottom inner part of the processing box (103), an inclined surface is provided. At the left bottom of the processing box (103), a discharge port is penetrated and opened. A cover plate (105) is installed outside the discharge port. The middle part of the top end of the cover plate (105) is fixedly connected to the output end of a cylinder (106). The cylinder (106) is arranged on the left side of the processing box (103), and a first sealing groove (107) is opened on the right side of the processing box (103).

3. The turning-milling compound machining device for manufacturing an injection screw according to claim 1, wherein The feeding mechanism (2) includes two sets of first fixing blocks (201) welded on the top of the body (1). A first lead screw (202) is rotatably connected between the two sets of first fixing blocks (201). A movable block (205) is threadedly connected to the first lead screw (202). The movable block (205) is slidably connected to a first guide rod (203). The two ends of the first guide rod (203) are respectively fixedly connected to the inner walls of the two sets of first fixing blocks (201). On the outer side wall of one of the first fixing blocks (201), a first stepping motor (204) for driving the rotation of the first lead screw (202) is provided. At the top of the movable block (205), a second driving motor (206) is installed. The output end of the second driving motor (206) is fixedly installed with a connecting frame (207).

4. The turning-milling compound machining device for producing injection molding screws according to claim 3, characterized in that, A first threaded rod (208) is rotatably connected inside the connecting frame (207). The thread directions of the threads opened at both ends of the first threaded rod (208) are opposite. Clamping members (211) are threadedly connected to both ends of the outer surface of the first threaded rod (208). A first fixing rod (209) is also welded inside the connecting frame (207). The clamping members (211) are slidably connected to the first fixing rod (209). The outer end of the first threaded rod (208) is fixedly connected to the output end of a first servo motor (210). The first servo motor (210) is fixedly installed outside the connecting frame (207).

5. The turning-milling compound processing device for producing injection molding screws according to claim 1, wherein The processing mechanism (3) includes a second lead screw (301), a second guide rod (302) and a movable member (304). The second lead screw (301) is rotatably connected to the inner top of the processing box (103). The movable member (304) is threadedly connected to the outer surface of the second lead screw (301). A first rotating gear ring (305) is rotatably connected inside the movable member (304). A first electric push rod (308) is installed outside the first rotating gear ring (305). The output end of the first electric push rod (308) is connected to a mounting seat, and a milling cutter (309) is rotatably connected inside the mounting seat. A third driving motor (306) is arranged outside the movable member (304). The output end of the third driving motor (306) is fixedly installed with a first driving gear (307) meshing with the first rotating gear ring (305). And a second electric push rod (310) is also arranged outside the movable member (304). The output end of the second electric push rod (310) is fixedly connected to a turning tool (311).

6. The turning-milling composite machining device for producing an injection molding screw according to claim 1, characterized in that, The first auxiliary mechanism (4) includes a fixing member (401) welded to the rear side of the top of the machine body (1). A third electric push rod (402) is arranged outside the fixing member (401). The output end of the third electric push rod (402) is fixedly connected to a fixing frame (403). A second threaded rod (404) is rotatably connected inside the fixing frame (403). The thread directions of the two ends of the second threaded rod (404) are opposite. A second fixing rod (405) is also fixedly connected inside the fixing frame (403). Two groups of clamping blocks (407) are slidably connected to the second fixing rod (405). The two groups of clamping blocks (407) are respectively threadedly connected to the two ends of the outer surface of the second threaded rod (404). A second servo motor (406) is arranged outside the fixing frame (403). The outer end of the second threaded rod (404) is fixedly installed at the output end of the second servo motor (406).

7. The turning-milling compound processing device for producing an injection molding screw according to claim 6, characterized in that, The first auxiliary mechanism (4) further includes an auxiliary ring (408). A clamping groove (409) adapted to the clamping block (407) is formed outside the auxiliary ring (408). A first sealing ring (410) adapted to the first sealing groove (107) is installed on one side of the auxiliary ring (408) close to the processing box (103). And a second rotating gear ring (411) is rotatably connected inside the auxiliary ring (408). A fourth driving motor (412) is fixedly installed inside the auxiliary ring (408). The output end of the fourth driving motor (412) is fixedly connected to a second driving gear (413). The second driving gear (413) meshes with the second rotating gear ring (411). Two groups of second fixing blocks (414) are welded outside the second rotating gear ring (411). A third threaded rod (415) is rotatably connected between the two groups of second fixing blocks (414). The thread directions of the two ends of the third threaded rod (415) are opposite. Clamping plates (418) are threadedly connected to both ends of the outer surface of the third threaded rod (415).

8. The turning-milling compound machining device for producing an injection molding screw according to claim 7, characterized in that, A fourth threaded rod (419) is rotatably connected to the outer side of the auxiliary ring (408). Clamping blocks (422) are threadedly connected to both ends of the outer surface of the fourth threaded rod (419). The clamping blocks (422) are slidably connected to a fourth fixed rod (420). The fourth fixed rod (420) is fixedly installed on the outer side of the auxiliary ring (408). The thread pitches at both ends of the fourth threaded rod (419) are opposite. A fourth servo motor (421) is provided on the outer side wall of the auxiliary ring (408). The outer end of the fourth threaded rod (419) is fixedly installed at the output end of the fourth servo motor (421). And a sealing gasket (423) is detachably connected to the side where the two clamping blocks (422) face each other.

9. The turning-milling compound machining device for producing an injection molding screw according to claim 1, characterized in that, The second auxiliary mechanism (5) includes two third fixed blocks (501) fixedly connected to the top of the machine body (1). A third lead screw (502) is rotatably connected between the two third fixed blocks (501). A movable plate (505) is threadedly connected to the third lead screw (502). The movable plate (505) is slidably connected to a third guide rod (503). The two ends of the third guide rod (503) are respectively fixedly connected to the inner walls of the two third fixed blocks (501). The outer end of the third lead screw (502) is fixedly connected to the output end of a third stepping motor (504). The third stepping motor (504) is arranged on the outer side wall of one of the third fixed blocks (501). A fourth electric push rod (506) is provided on the outer side of the movable plate (505). The output end of the fourth electric push rod (506) is fixedly installed with a moving plate (507).

10. The turning-milling compound machining device for manufacturing an injection molding screw according to claim 9, characterized in that, A third rotating gear ring (508) is rotatably connected inside the moving plate (507). A fifth driving motor (509) is provided on the outer side of the moving plate (507). The output end of the fifth driving motor (509) is fixedly connected to a third driving gear (510) meshing with the third rotating gear ring (508). A fifth threaded rod (511) is rotatably connected to the outer side of the third rotating gear ring (508). A fifth fixed rod (512) is also fixedly connected to the outer side of the third rotating gear ring (508). Two clamping strips (514) are slidably connected to the fifth fixed rod (512). The two clamping strips (514) are respectively threadedly connected to both ends of the outer surface of the fifth threaded rod (511). And the thread pitches at both ends of the fifth threaded rod (511) are opposite. The two clamping strips (514) are used for clamping an auxiliary thread gauge (515). A second sealing ring (516) adapted to the first sealing groove (107) is also installed on the side of the auxiliary thread gauge (515) close to the processing box (103).

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