A precision milling combined machine tool for machining corner fittings

Abstract

The present application relates to the technical field of machining machine tools, and discloses a precision milling combined machine tool for machining corner pieces, which comprises a base, a conveying belt fixed symmetrically on one side of the base, a material moving block sliding on the base, and grinding racks symmetrically arranged and sliding on the base; a motor three is fixed on the grinding rack, a transmission belt is fixed at the output end of the motor three, a conical shell is fixed on one side of the grinding rack, a tool bar is rotatably arranged in the conical shell, a grinding head one is fixed at one end of the tool bar, a transmission wheel is fixed at the other end of the tool bar, the transmission belt is connected with the transmission wheel for transmission, a cavity is arranged in the tool bar, and a moving rod is slidingly arranged in the cavity of the tool bar. In the present application, the surface and internal hole and groove of the corner piece are processed, the multi-surface machining requirement of the corner piece can be realized, the grinding racks arranged symmetrically are used for precisely milling the two sides of the corner piece, the machining precision of the two sides of the corner piece can be ensured, the quality of the finished corner piece is improved, the internal and external machining of the corner piece can be simultaneously realized, and the overall quality of the corner piece is ensured.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, specifically a precision milling combination machine tool for machining corner pieces. Background Technology

[0002] In the processing of corner pieces, milling is usually required, which often relies on multi-functional machine tools to automate the corner piece milling process and obtain the desired finished parts.

[0003] In the prior art, such as the application with application number CN202320091326.4, entitled "Precision Grinding and Milling Machine Tool for Brake Disc End Face," the machine tool includes a base platform, a corner bracket shaft with an external cone, a corner bracket sleeve, and a corner bracket sleeve seat. A grinding wheel shaft is installed in the grinding wheel sleeve seat hole, forming a grinding wheel sleeve assembly. The corner bracket shaft is installed in the corner bracket sleeve hole, and the corner bracket sleeve is installed in the corner bracket sleeve seat hole, forming a corner bracket sleeve seat assembly. The grinding wheel sleeve assembly and the corner bracket sleeve seat assembly are mounted parallel or side-by-side on the base platform.

[0004] However, existing milling machine tools can only mill the surface of corner pieces, but cannot mill the internal areas of corner pieces. They cannot mill irregularly shaped corner pieces, have limited functionality, and have low processing accuracy. Therefore, it is necessary to design a precision milling combination machine tool for processing corner pieces. Summary of the Invention

[0005] The purpose of this invention is to provide a precision milling combination machine tool for processing corner pieces, so as to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A precision milling combination machine tool for processing corner pieces includes a base, a conveyor belt symmetrically fixed on one side of the base, a transfer block for moving corner pieces sliding on the base, and a grinding frame symmetrically distributed on the base.

[0008] A motor is fixed on the grinding frame. A transmission belt is fixedly connected to the output end of the motor. A conical shell is fixed on one side of the grinding frame. A tool bar is rotatably installed inside the conical shell. A grinding head for removing burrs from the side of corner pieces is fixed at one end of the tool bar, and a transmission wheel is fixed at the other end. The transmission belt is connected to the transmission wheel for transmission. A cavity is provided inside the tool bar, and a moving rod slides inside the cavity of the tool bar.

[0009] Furthermore, the two conveyor belts are located on both sides of the grinding frame, and symmetrically distributed slides for mounting the grinding frame are fixed on the base. A lead screw is provided between the two slides, and a motor is fixed on the base. The output end of the motor is fixedly connected to the lead screw. Guide rods are fixed on both sides of the lead screw, and the guide rods are fixed to one side of the slide.

[0010] Furthermore, a cylinder for discharging corner pieces is fixed on the base. The cylinder is located at one end of the conveyor belt for discharging corner pieces. A limiting cylinder for limiting the corner pieces is fixed at one end of the conveyor belt near the base. The limiting cylinder is located at the top of the conveyor belt.

[0011] Furthermore, the transfer block is provided with a threaded hole, and guide holes are provided on both sides of the threaded hole on the transfer block. The guide holes are slidably connected to the guide rod, and the threaded hole is threadedly connected to the lead screw. A platform is fixed on the transfer block, and symmetrically distributed end plates are fixed at both ends of the platform. A limit plate is fixed on one side of the platform, and a flip plate for clamping corner pieces is rotatably mounted on the other end.

[0012] A second motor is fixed on the material transfer block, and a flipping rod is fixedly connected to the output end of the second motor. The flipping plate is fixedly connected to the flipping rod.

[0013] Furthermore, a second grinding head is fixed to one end of the moving rod, and a first spring is fixed to the other end. The second grinding head is engaged inside the first grinding head, and the first spring is fixedly connected to the inner end wall of the cavity. A through groove is provided on the tool bar, which communicates with the cavity. Push rods are rotatably mounted on both sides of the moving rod.

[0014] An arc-shaped frame is fixed on the tool holder, and a motor four is symmetrically fixed on the arc-shaped frame. A lead screw two is fixed to the output end of the motor four, and a push block is threadedly connected to the lead screw two. The push block is slidably connected to the outer side of the tool holder. The push block is provided with a sliding groove. A spring two is fixed to one end of the sliding groove, and a round shaft is slidably provided at the other end. The round shaft is connected to one end of the spring two.

[0015] One side of the push block is fixed with a bolt for fixing the round shaft. The bolt passes through the push block and is fixedly connected to the round shaft. The end of the push rod away from the moving rod is fixedly connected to the round shaft.

[0016] Furthermore, a stand is fixed on the base, and the stand is set at one end of the conveyor belt for feeding corner pieces. A cylinder two is fixed on the stand, and a push rod rotates at the output end of the cylinder two. A lifting frame rotates at the end of the push rod away from the cylinder two. The lifting frame is slidably installed on the top of the stand, and a moving plate is fixed at the end of the lifting frame away from the push rod. A slide table two is fixed on the moving plate, and a slider one slides on the slide table two. Symmetrically distributed limiting claws are fixedly installed below the slider one.

[0017] Furthermore, a motor five is fixedly installed inside the slider one, and an installation rod is slidably installed on the slider one and below the motor five. Springs three are fixedly connected to both ends of the installation rod, and one end of the springs three is fixedly connected to the outside of the slider one. A horizontal groove one is provided on the installation rod, and the horizontal groove one is set perpendicular to the axis of the installation rod. A drive rod one slides in the horizontal groove one, and a swing arm one is fixedly connected to the drive rod one.

[0018] Furthermore, the end of the swing arm away from the drive rod is fixedly connected to the output end of the motor five. A cylinder three is fixedly mounted on the mounting rod. A limit block is fixedly connected to the output end of the cylinder three. The limit block is connected to two limit claws. A motor six is ​​fixedly mounted on the mounting rod and located on both sides of the limit block. A grinding wheel for grinding corner pieces is fixedly connected to the output end of the motor six.

[0019] Furthermore, a cutting frame is fixed on the base. The cutting frame is located on one side of the conveyor belt used for feeding corner pieces. A slide table three is fixed on the cutting frame. A slider two is fixed on the slide table three. A slide table four is fixed on the slider two. The slide table four is perpendicular to the slide table three. A slider three is slidably mounted on the slide table four. A slide table five is fixed on the slider three. A slider four is slidably mounted on the slide table five.

[0020] A pull rod is rotatably connected to the slider four. An arc plate is fixed to one end of the slider three. An arc groove is provided on the arc plate. A movable seat slides on the arc groove. One side of the movable seat is rotatably connected to the pull rod. A top plate is fixed on the movable seat. A cylinder four is fixed on one side of the top plate. A side frame is fixed to the output end of the cylinder four. A positioning frame is slidably provided on one side of the side frame.

[0021] Furthermore, the positioning frame is slidably connected to the output end of the cylinder four. A spring four is fixedly connected to the side of the positioning frame away from the side frame. One end of the spring four is fixedly connected to the side of the top plate. When the positioning frame contacts the inner wall of the slot on the corner piece, symmetrically distributed guide posts are fixed on the side frame. Each guide post is fitted with a spring five at both ends. One end of the spring five is fixedly connected to the side frame, and the other end is fixedly connected to a tool holder.

[0022] Both sides of the tool holder are connected to spring five. A drive motor is fixed on one side of the tool holder, and a horizontal groove two is provided on the other side. A cutting tool is fixed to the output end of the drive motor. A drive rod two slides in the horizontal groove two. A swing arm two is fixed on the drive rod two. A motor seven is fixed in the side frame. The output end of the motor seven is connected to the end of the swing arm two.

[0023] The beneficial effects of this invention are:

[0024] 1. The present invention provides a precision milling combination machine tool for processing corner pieces, wherein the corner pieces are subjected to surface and internal hole and groove treatment, which can meet the multi-face processing requirements of the corner pieces. At the same time, the symmetrically arranged grinding frames perform precision milling on both sides of the corner pieces, which can ensure the processing accuracy on both sides of the corner pieces, making the corner pieces have the same processing accuracy and improving the quality of the finished corner pieces.

[0025] 2. The precision milling combination machine tool for processing corner pieces of the present invention has a simple structure and multiple processing functions. When processing the surface of corner pieces, a grinding wheel is used, while for the internal processing of irregular corner pieces, a moving rod is extended to enter the interior of the irregular corner piece, thus satisfying the internal processing of irregular corner pieces. The internal and surface processing are carried out simultaneously, which can precisely process the inside and outside of corner pieces and ensure the overall quality of corner pieces. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of the precision milling combination machine tool of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the combined machine tool of the present invention;

[0029] Figure 3 This is a schematic diagram of the material transfer block of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the grinding frame of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the tool holder of the present invention;

[0032] Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point A in the middle;

[0033] Figure 7 This is a schematic diagram of the structure of the support frame of the present invention;

[0034] Figure 8 This is a partial structural schematic diagram of the support frame of the present invention;

[0035] Figure 9 This is a schematic diagram of the mounting rod of the present invention;

[0036] Figure 10 This is a schematic diagram of the cutting frame of the present invention;

[0037] Figure 11 This is a partial structural schematic diagram of the cutting frame of the present invention;

[0038] Figure 12 This is the present invention. Figure 11 Schematic diagram of the main structure at point B;

[0039] Figure 13 This is a schematic diagram of the structure of the slide table four of the present invention;

[0040] Figure 14 This is the present invention. Figure 13 Sectional view along the CC direction.

[0041] The attached diagram is described below:

[0042] 1. Base; 2. Conveyor belt; 3. Transfer block; 4. Grinding frame; 5. Stand; 6. Cutting frame; 11. Slide table one; 12. Lead screw one; 13. Guide rod; 14. Cylinder one; 21. Limiting cylinder; 31. Threaded hole; 32. Guide hole; 33. Limiting plate; 34. End plate; 35. Tilting plate; 36. Motor two; 40. Arc frame; 41. Conical shell; 42. Motor three; 43. Transmission belt ; 44. Tool holder; 45. Grinding head one; 46. Drive wheel; 47. Moving rod; 48. Through slot; 49. Push rod; 51. Lifting frame; 52. Cylinder two; 53. Push rod; 54. Moving plate; 55. Slide two; 56. Slider one; 57. Limiting claw; 58. Mounting rod; 59. Motor five; 61. Slide three; 62. Slider two; 63. Slide four; 64. Slider three; 65. Slide 5; 66. Arc plate; 67. Movable seat; 68. Side frame; 69. Motor 7; 400. Motor 4; 401. Lead screw 2; 402. Push block; 403. Bolt; 404. Slide groove; 405. Spring 2; 406. Round shaft; 471. Grinding head 2; 581. Horizontal groove 1; 582. Spring 3; 583. Grinding wheel; 584. Motor 6; 585. Cylinder 3; 586. Limit block 591. Swing arm one; 592. Drive rod one; 651. Slider four; 652. Pull rod; 661. Arc groove; 671. Top plate; 672. Cylinder four; 673. Positioning frame; 674. Spring four; 681. Guide post; 682. Tool holder; 683. Spring five; 684. Drive motor; 685. Cutting tool; 686. Cross groove two; 691. Swing arm two; 692. Drive rod two. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] A precision milling combination machine tool for processing corner pieces, which performs milling operations on corner pieces to machine grooves, such as... Figure 1 As shown, the combined machine tool includes a base 1, with a symmetrically distributed conveyor belt 2 fixed on one side of the base 1. A transfer block 3 is slidably disposed on the base 1. The transfer block 3 moves horizontally to the corner pieces to switch and adjust the processing position. A symmetrically distributed grinding frame 4 is slidably disposed on the base 1. The two grinding frames 4 are located on both sides of the transfer block 3 to perform grinding on both sides of the corner pieces on the transfer block 3.

[0045] Two conveyor belts 2 are used for feeding and discharging corner pieces respectively, and the two conveyor belts 2 are located on both sides of the grinding frame 4. A stand 5 is fixedly installed on the base 1. The stand 5 is set at one end of the conveyor belt 2 used for feeding corner pieces. A cutting frame 6 is fixedly installed on the base 1. The cutting frame 6 is set on one side of the conveyor belt 2 used for feeding corner pieces.

[0046] like Figure 2 As shown, two symmetrically distributed slides 11 are fixed on the base 1. The two slides 11 are used to install two grinding frames 4 and drive the grinding frames 4 to move. A lead screw 12 is set between the two slides 11. Guide rods 13 are fixed on both sides of the lead screw 12. The guide rods 13 are fixedly connected to one side of the slide 11. One end of the lead screw 12 is fixedly connected to the output end of the motor. The motor drives the lead screw 12 to rotate.

[0047] A cylinder 14 is fixedly installed on the base 1. The cylinder 14 is located at one end of the conveyor belt 2 used for corner piece discharge. The output end of the cylinder 14 faces the conveyor belt 2. A limit cylinder 21 is fixedly installed at one end of the conveyor belt 2 near the base 1. The limit cylinder 21 is located at the top of the conveyor belt 2. The output end of the limit cylinder 21 presses the corner piece on the conveyor belt 2 to stop the subsequent corner piece from being conveyed, thereby controlling the number of corner pieces discharged.

[0048] like Figure 3 As shown, the transfer block 3 has a threaded hole 31, and guide holes 32 are provided on both sides of the threaded hole 31 on the transfer block 3. The guide holes 32 are slidably connected to the guide rod 13, and the threaded hole 31 is threadedly connected to the lead screw 12. A platform is fixed on the transfer block 3. End plates 34 are symmetrically distributed at both ends of the platform. A limiting plate 33 is fixed on one side of the platform, and a flipping plate 35 is rotatably provided at the other end. A second motor 36 is fixed on the transfer block 3. A flipping rod is fixedly connected to the output end of the second motor 36. The flipping plate 35 is fixedly connected to the flipping rod. The second motor 36 controls the rotation of the flipping rod to control the rotation of the flipping plate 35 to clamp the corner piece on the platform, thereby fixing the corner piece on the platform.

[0049] like Figure 4 , Figure 5 , Figure 6 As shown, the grinding frame 4 is slidably mounted on the corresponding slide table 11. A motor 3 42 is fixedly mounted on the grinding frame 4. The output end of the motor 3 42 is connected to a transmission belt 43. A conical shell 41 is fixedly mounted on one side of the grinding frame 4. A tool bar 44 is rotatably mounted inside the conical shell 41. A grinding head 45 is fixedly mounted on one end of the tool bar 44, and a transmission wheel 46 is fixedly mounted on the other end. The transmission belt 43 is connected to the transmission wheel 46 to transmit the power of the motor 3 42 to the tool bar 44, thereby driving the tool bar 44 to rotate.

[0050] The tool holder 44 has a cavity, and a moving rod 47 is slidably arranged in the cavity. One end of the moving rod 47 is fixedly equipped with a second grinding head 471, which is located inside a first grinding head 45. The other end of the moving rod 47 is fixedly equipped with a first spring, which is fixedly connected to the inner end wall of the cavity. A through groove 48 is opened on the tool holder 44, which communicates with the cavity. Push rods 49 are rotatably connected to both sides of the moving rod 47.

[0051] An arc-shaped frame 40 is fixedly mounted on the tool holder 44. A symmetrically distributed motor 400 is fixedly mounted on the arc-shaped frame 40. A lead screw 401 is fixedly connected to the output end of the motor 400. A push block 402 is threadedly connected to the lead screw 401. The push block 402 is slidably connected to the outer side of the tool holder 44. A groove 404 is provided on the push block 402. A spring 405 is fixedly mounted at one end of the groove 404, and a round shaft 406 is slidably mounted at the other end. The round shaft 406 contacts one end of the spring 405. A detachable bolt 403 is fixedly mounted on one side of the push block 402. The bolt 403 passes through the push block 402 and tightens the round shaft 406, locking the position of the round shaft 406. Conversely, the bolt 403 is removed to release the fixation of the round shaft 406.

[0052] The end of the push rod 49 away from the moving rod 47 is fixedly connected to the round shaft 406. When the lead screw 401 rotates, it drives the push block 402 to translate along the axis of the tool holder 44. The push block 402 pushes the round shaft 406 and the push rod 49 connected to it to move, so that the moving rod 47 can move in and out. When the grinding head 471 at the end of the moving rod 47 extends, it can perform grinding on the inside of the hole groove of the corner piece.

[0053] like Figure 7 , Figure 8 , Figure 9 As shown, cylinder 2 52 is fixedly mounted on the upright frame 5. A push rod 53 is rotatably connected to the output end of cylinder 2 52. A lifting frame 51 is rotatably connected to the end of the push rod 53 away from cylinder 2 52. The lifting frame 51 is vertically and slidably mounted on the top of the upright frame 5. A movable plate 54 is fixedly mounted at the end of the lifting frame 51 away from the push rod 53. A slide table 2 55 is fixedly mounted on the movable plate 54. A slider 1 56 is slidably mounted on the slide table 2 55. A symmetrically distributed limiting claw 57 is fixedly mounted below the slider 1 56. A motor 59 is fixedly mounted inside the slider 1 56. An installation rod 58 is located below the motor 59 and is slidably connected to the slider 1 56.

[0054] Springs 582 are fixedly connected to both ends of the mounting rod 58. One end of the springs 582 is fixedly connected to the outside of the slider 56. A horizontal groove 581 is provided on the mounting rod 58. The horizontal groove 581 is perpendicular to the axis of the mounting rod 58. A drive rod 592 is slidably provided in the horizontal groove 581. A swing arm 591 is fixedly connected to the drive rod 592. The end of the swing arm 591 away from the drive rod 592 is fixedly connected to the output end of the motor 59. The motor 59 controls the rotation of the swing arm 591, so that the mounting rod 58 moves horizontally.

[0055] A cylinder 3 585 is fixedly installed on the mounting rod 58. The output end of the cylinder 3 585 is fixedly connected to a limit block 586. When the cylinder 3 585 pushes the limit block 586 to move between the two limit claws 57, the mounting rod 58 is limited and fixed by the limit block 586 contacting the two limit claws 57, ensuring the positional accuracy of the mounting rod 58 and improving the machining accuracy. A motor 6 584 is fixedly installed on the mounting rod 58 and on both sides of the limit block 586. The output ends of the two motors 6 584 are fixedly connected to grinding wheels 583. The grinding wheels 583 are located at the top of the corner piece and perform grinding on the top of the corner piece.

[0056] like Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, a slide table 61 is fixedly mounted on the cutting frame 6. The slide table 61 is vertically mounted, and a slider 62 is fixedly mounted on the slide table 61. A horizontally mounted slide table 63 is fixedly mounted on the slider 62. The slide table 63 is perpendicular to the slide table 61, and a slider 64 is slidably mounted on the slide table 63. A slide table 65 is fixedly mounted on the slider 64, and a slider 651 is slidably mounted on the slide table 65. A pull rod 652 is rotatably connected to the slider 651.

[0057] An arc-shaped plate 66 is fixedly provided at one end of the slider 64. An arc-shaped groove 661 is provided on the arc-shaped plate 66. A movable seat 67 is slidably provided on the arc-shaped groove 661. One side of the movable seat 67 is rotatably connected to the pull rod 652. The position of the movable seat 67 on the arc-shaped groove 661 is changed by moving the pull rod 652. A top plate 671 is fixedly provided on the movable seat 67. A cylinder 672 is fixedly provided on one side of the top plate 671. The output end of the cylinder 672 passes through the movable seat 67 and is fixedly connected to a side frame 68. A positioning frame 673 is slidably provided on one side of the side frame 68. The positioning frame 673 is slidably connected to the output end of the cylinder 672. A spring 674 is fixedly connected to the side of the positioning frame 673 away from the side frame 68. One end of the spring 674 is fixedly connected to the side of the top plate 671, pushing the positioning frame 673 to fit against the side frame 68.

[0058] When the positioning frame 673 contacts the inner wall of the slot on the corner piece, the positioning frame 673 is locked in place. At this time, the positioning frame 673 is in close contact with the slot of the corner piece. After the side frame 68 is moved further, the side frame 68 can penetrate into the corner piece for cutting. The side frame 68 is fixedly provided with symmetrically distributed guide posts 681. Each guide post 681 has a spring 683 sleeved at both ends. One end of the spring 683 is fixedly connected to the side frame 68, and the other end is fixedly connected to a tool holder 682. Both sides of the tool holder 682 are connected to the spring 683, and a drive motor 684 is fixedly connected to one side of the tool holder 682. The output end of the drive motor 684 is fixedly connected to a cutting tool 685 for cutting the corner piece.

[0059] A transverse groove 686 is provided on the other side of the tool holder 682. A drive rod 692 is slidably provided in the transverse groove 686. A swing arm 691 is fixedly provided on the drive rod 692. A motor 69 is fixedly provided in the side frame 68. The output end of the motor 69 is fixedly connected to the end of the swing arm 691 away from the drive rod 692 to control the rotation of the swing arm 691, so as to move the drive rod 692 in the transverse groove 686, thereby moving the tool holder 682 up and down and adjusting the position of the cutting tool 685.

[0060] The working principle is as follows:

[0061] The corner piece is fed into the machine tool via the feeding conveyor belt 2. When the corner piece moves to the center of the platform on the transfer block 3, the corner piece is pushed by the flip plate 35. Then, the corner piece is clamped by the flip plate 35 and the limiting plate 33, and the end plate 34 fixes the two ends of the corner piece. Then, the corner piece moves to one side of the cutting frame 6, and the corner piece is cut by the cutting tool 685 on the cutting frame 6. Holes and grooves are machined on both sides of the corner piece. At the same time, the cutting tool 685 extends into the inside of the corner piece to process the inside of the corner piece and remove the burrs inside the corner piece.

[0062] Then, the corner piece is moved to one side of the stand 5, and the grinding wheel 583 is moved down so that the grinding wheel 583 can process the top of the corner piece, remove the burrs on the top of the corner piece, and grind the top of the corner piece to make the top of the corner piece flat.

[0063] Furthermore, when cylinder 3 585 pushes the limit block 586 to move between the two limit claws 57, the limit block 586 limits the mounting rod 58, and the grinding wheel 583 moves down, which can process the chamfer on the corner piece, remove the chamfer burrs, ensure the positional accuracy of the mounting rod 58, and improve the processing precision.

[0064] Then, when the corner piece is located between the two grinding frames 4, the power of the motor 3 42 drives the tool holder 44 to rotate, so that the tool holder 44 rotates continuously. The grinding head 1 45 and the grinding head 2 471 grind the two sides of the corner piece. Then, the moving rod 47 is moved by the lead screw 2 401, so that the grinding head 2 471 is inserted into the hole groove on the side of the corner piece to polish the inner wall of the hole groove, so as to ensure the overall quality of the corner piece.

[0065] 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A precision milling assembly machine for machining corner fittings, comprising a base (1), characterized in that, One side of the base (1) is symmetrically fixed with a material conveying belt (2), the base (1) is slidably provided with a material moving block (3) for moving the corner piece, and the base (1) is slidably provided with symmetrically distributed grinding frames (4); The grinding frame (4) is fixed with a motor three (42), the output end of the motor three (42) is fixedly connected with a transmission belt (43), one side of the grinding frame (4) is fixed with a conical shell (41), the conical shell (41) is rotatably provided with a tool bar (44), one end of the tool bar (44) is fixedly provided with a grinding head one (45) for removing the burr on the side surface of the corner piece, the other end is fixedly provided with a transmission wheel (46), the transmission belt (43) is connected with the transmission wheel (46) for transmission, the tool bar (44) is provided with a cavity, and the tool bar (44) is slidably provided with a moving rod (47) in the cavity; One end of the moving rod (47) is fixedly provided with a grinding head two (471), the other end is fixedly provided with a spring one, the grinding head two (471) is clamped in the grinding head one (45), the spring one is fixedly connected with the inner end wall of the cavity, the tool bar (44) is provided with a through groove (48), the through groove (48) is communicated with the cavity, and the moving rod (47) is rotatably provided with a push rod (49) on both sides; The tool bar (44) is fixedly provided with an arc-shaped frame (40), the arc-shaped frame (40) is symmetrically fixed with a motor four (400), the output end of the motor four (400) is fixedly connected with a lead screw two (401), the lead screw two (401) is threadedly connected with a push block (402), the push block (402) is slidably connected with the outer side of the tool bar (44), the push block (402) is provided with a sliding groove (404), one end of the sliding groove (404) is fixedly provided with a spring two (405), and the other end is slidably provided with a circular shaft (406), and the circular shaft (406) is connected with one end of the spring two (405); One side of the push block (402) is fixedly provided with a bolt (403) for fixing the circular shaft (406), the bolt (403) is fixedly connected with the circular shaft (406) through the push block (402), and the end of the push rod (49) away from the moving rod (47) is fixedly connected with the circular shaft (406); The base (1) is fixedly provided with a cutting frame (6), the cutting frame (6) is arranged on one side of the material conveying belt (2) for feeding the corner piece, the cutting frame (6) is fixedly provided with a sliding table three (61), the sliding table three (61) is fixedly provided with a sliding block two (62), the sliding block two (62) is fixedly provided with a sliding table four (63), the sliding table four (63) is arranged perpendicularly to the sliding table three (61), the sliding table four (63) is slidably provided with a sliding block three (64), the sliding block three (64) is fixedly provided with a sliding table five (65), and the sliding table five (65) is slidably provided with a sliding block four (651). The slider four (651) is rotationally connected with a pull rod (652), one end of the slider three (64) is fixedly connected with an arc-shaped plate (66), the arc-shaped plate (66) is provided with an arc-shaped slot (661), the arc-shaped slot (661) is slidably connected with a moving seat (67), one side of the moving seat (67) is rotationally connected with the pull rod (652), the moving seat (67) is fixedly connected with a top plate (671), one side of the top plate (671) is fixedly connected with a cylinder four (672), the output end of the cylinder four (672) is fixedly connected with a side frame (68), one side of the side frame (68) is slidably connected with a positioning frame (673); The base (1) is fixedly connected with a stand (5), the stand (5) is arranged at one end of the material conveying belt (2) for the corner piece feeding, the stand (5) is fixedly connected with a cylinder two (52), the output end of the cylinder two (52) is rotationally connected with a top rod (53), the end, away from the cylinder two (52), of the top rod (53) is rotationally connected with a lifting frame (51), the lifting frame (51) is slidably arranged on the top of the stand (5), the end, away from the top rod (53), of the lifting frame (51) is fixedly connected with a moving plate (54), the moving plate (54) is fixedly connected with a sliding table two (55), the sliding table two (55) is slidably connected with a sliding block one (56), the lower portion of the sliding block one (56) is fixedly connected with symmetrically distributed limiting claws (57); The sliding block one (56) is fixedly connected with a motor five (59) inside, the sliding block one (56) is slidably connected with a mounting rod (58) above and below the motor five (59), the two ends of the mounting rod (58) are fixedly connected with springs three (582), one end of the spring three (582) is fixedly connected with the outer side of the sliding block one (56), the mounting rod (58) is provided with a horizontal slot one (581), the horizontal slot one (581) is arranged perpendicularly to the axis of the mounting rod (58), the horizontal slot one (581) is slidably connected with a driving rod one (592), the driving rod one (592) is fixedly connected with a swing arm one (591); The two material conveying belts (2) are arranged on the two sides of the grinding frame (4), the base (1) is fixedly connected with symmetrically distributed sliding tables one (11) for mounting the grinding frame (4), a lead screw one (12) is arranged between the two sliding tables one (11), the base (1) is fixedly connected with a motor one, the output end of the motor one is fixedly connected with the lead screw one (12), lead screws one (12) are fixedly arranged on the two sides of the lead screw one (12), and the lead screws one (12) are fixedly arranged on one side of the sliding table one (11).

2. The precision milling assembly machine for machining corner fittings according to claim 1, characterized in that, The base (1) is fixedly connected with a cylinder one (14) for corner piece discharging, the cylinder one (14) is arranged at one end of the material conveying belt (2) for corner piece discharging, one end of the material conveying belt (2), close to the base (1), is fixedly connected with a limiting cylinder (21) for corner piece limiting, and the limiting cylinder (21) is arranged on the top of the material conveying belt (2).

3. The precision milling assembly machine for machining corner fittings according to claim 1, characterized in that, The material moving block (3) is provided with a threaded hole (31), and guide holes (32) are arranged on the material moving block (3) and located on both sides of the threaded hole (31); the guide holes (32) are in sliding connection with guide rods (13); the threaded hole (31) is in threaded connection with a lead screw (12); the material moving block (3) is fixedly provided with a material table; the material table is fixedly provided with end plates (34) which are symmetrically distributed at both ends of the material table; the material table is fixedly provided with a limiting plate (33) on one side; and a turnover plate (35) for clamping the corner piece is rotatably arranged at the other end of the material table. The material moving block (3) is fixedly provided with a motor two (36), the output end of the motor two (36) is fixedly connected with a turnover rod, and the turnover plate (35) is fixedly connected with the turnover rod.

4. The precision milling assembly machine for machining corner fittings according to claim 1, characterized in that, The end, away from the driving rod one (592), of the swing arm one (591) is fixedly connected with the output end of the motor five (59); the mounting rod (58) is fixedly provided with a cylinder three (585); the output end of the cylinder three (585) is fixedly connected with a limiting block (586); the limiting block (586) is connected with two limiting claws (57); the mounting rod (58) is fixedly provided with a motor six (584) and located on both sides of the limiting block (586); the output end of the motor six (584) is fixedly connected with a grinding wheel (583) for grinding the corner piece.

5. The precision milling assembly machine for machining corner fittings according to claim 1, characterized in that, The positioning frame (673) is in sliding connection with the output end of the cylinder four (672); the positioning frame (673) is fixedly connected with a spring four (674) on the side, away from the side frame (68); one end of the spring four (674) is fixedly connected with the side surface of the top plate (671); when the positioning frame (673) is in contact with the inner wall of the notch on the corner piece, the side frame (68) is fixedly provided with symmetrically distributed guide columns (681); each guide column (681) is sleeved with a spring five (683) at both ends; one end of the spring five (683) is fixedly connected with the side frame (68); and the other end is fixedly connected with a tool holder (682); The tool holder (682) is connected with the spring five (683) at both sides; the tool holder (682) is fixedly provided with a driving motor (684) on one side; the other side is provided with a horizontal groove two (686); the output end of the driving motor (684) is fixedly connected with a cutting tool (685); a driving rod two (692) is slidably arranged in the horizontal groove two (686); the driving rod two (692) is fixedly provided with a swing arm two (691); the side frame (68) is fixedly provided with a motor seven (69); and the output end of the motor seven (69) is connected with the end portion of the swing arm two (691).

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