Door and window screw corner combining unit, double-head corner combining machine and four-head corner combining machine

Abstract

The utility model relates to a door and window screw corner combining unit, a double-head corner combining machine and a four-head corner combining machine, the door and window screw corner combining unit comprises a base, a working table is arranged on the base, a positioning clamp is arranged at the upper end of the working table, two screw corner combining structures are vertically arranged on the base, and each screw corner combining structure comprises a three-translation mechanism. And a punching mechanism, a screw driving mechanism and a glue injection mechanism are arranged at the tail ends of the three translation mechanisms correspondingly, and the punching mechanism, the screw driving mechanism and the glue injection mechanism are arranged in the direction perpendicular to the profile. The double-end corner combining machine comprises a rack A, two door and window screw corner combining units are arranged on the rack A at intervals, and corner combining machining is conducted on the two corners of a door and a window at the same time. The four-head corner combining machine comprises a rack B, a platform A and a platform B are transversely arranged on the rack B in a spaced mode, two door and window screw corner combining units are longitudinally arranged on the platform A and the platform B in a spaced mode respectively, and meanwhile corner combining machining is conducted on the four corners of a door and a window. The corner combining machine has the advantages of reasonable structural design, independent punching, nailing and glue injection on two sides, high integration degree, high corner combining efficiency and the like.

Description

Technical field:

[0001] The utility model relates to the technical field of door and window corner assembly equipment, in particular to a door and window screw corner assembly unit, a double-head corner assembly machine and a four-head corner assembly machine. Background technology:

[0002] In order to improve the quality of corner assembly, the corner assembly machine has been extended to the screw corner assembly machine. The working principle of the screw corner assembly machine (also called screw corner assembly machine) is relatively simple, that is, the corner assembly code is connected to the frame profile by screws to achieve the corner assembly of doors and windows.

[0003] The structure of the existing screw corner assembly machine is such as a profile nailing corner assembly machine disclosed in a Chinese patent (authorization announcement number: CN218426789U). This technology realizes the drilling and screwing of profiles, which can basically meet the needs of screw corner assembly. However, as users' requirements for the quality and efficiency of door and window corner assembly continue to increase, the existing screw corner assembly machine can no longer meet the higher corner assembly requirements, which is mainly reflected in the following aspects. For example, the existing screw corner assembly machine mainly assembles the single corner of doors and windows, while doors and windows usually consist of four corners, and thus need to be assembled one by one, and the overall efficiency is low. For another example, after the corner assembly of doors and windows, it is usually necessary to punch holes, inject glue and seal, but the existing screw corner assembly machine usually does not have this function, which requires the doors and windows after the corner assembly to be clamped, injected glue and sealed again, which limits the efficiency of the entire corner assembly process. For another example, the existing screw corner assembly machine usually shares a lifting mechanism for the drilling and screwing mechanisms, which results in that when the height of the processing position on both sides is inconsistent, only one side can be processed first, and then the other side can be processed, which affects the processing efficiency. Therefore, it is necessary to optimize and improve the existing screw angle assembly machine in order to further improve the angle assembly efficiency.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility model content:

[0005] The purpose of the utility model is to solve the problems existing in the prior art and to provide a door and window screw corner assembly unit, a double-head corner assembly machine and a four-head corner assembly machine, which have the advantages of reasonable structural design, independent drilling, nailing and glue injection on both sides, high degree of integration and high corner assembly efficiency.

[0006] The utility model achieves the above-mentioned purpose by adopting the following technical solutions:

[0007] The door and window screw corner assembly unit comprises a base, a workbench is provided on the base, a positioning fixture is provided on the upper end of the workbench, the positioning fixture positions and clamps two profiles with a 90° angle, two screw corner assembly structures are respectively provided on the base, the two screw corner assembly structures are vertically arranged, each screw corner assembly structure corresponds to a profile for corner assembly, the screw corner assembly structure comprises three translation mechanisms, the three translation mechanisms move in the length direction of the profile, vertically and in a direction perpendicular to the profile in turn, a punching mechanism, a screw driving mechanism and a glue injection mechanism are respectively arranged at the ends of the three translation mechanisms, and the punching mechanism, the screw driving mechanism and the glue injection mechanism are arranged in a direction perpendicular to the profile.

[0008] The positioning fixture includes two positioning blocks for positioning the corners of the two profiles and two support plates for positioning the edges of the profiles. The two positioning blocks are vertically arranged, and the two support plates are vertically arranged. The positioning blocks and the support plates on the same side are aligned. The side pressure slides are vertically arranged on the workbench, and the side pressure slides are provided with side pressure plates. The workbench is provided with side pressure cylinders, and the side pressure cylinders are connected to the side pressure plates. The side pressure plates cooperate with the support plates to clamp the profiles.

[0009] The three-translational mechanism includes a guide rail A arranged along the length direction of the profile, a slide A is provided on the guide rail A, a nut seat A and a nut A are provided on the slide A, a motor A is provided on the base, the motor A is connected to a lead screw A, the lead screw A is installed on the nut A, a stand is provided on the slide A, a guide rail B is vertically provided on the stand, a slide B is provided on the guide rail B, a nut seat B and a nut B are provided on the slide B, a motor B is vertically provided on the upper end of the stand, the motor B is connected to a lead screw B, the lead screw B is installed on the nut B, a guide rail C is provided on the slide B along a direction perpendicular to the profile, a slide C is provided on the guide rail C, a nut seat C and a nut C are provided on the slide C, a motor C is provided at the end of the slide B, the motor C is connected to a lead screw C, the lead screw C is installed on the nut C, and a punching mechanism, a screw driving mechanism and a glue injection mechanism are respectively provided on the slide C.

[0010] The punching mechanism comprises a punching motor arranged on a slide seat C in a direction perpendicular to the profile, and a punching tool is arranged on the punching motor.

[0011] The screw driving mechanism includes a guide rail D arranged on a slide C along a direction perpendicular to the profile, a slide D is arranged on the guide rail D, an automatic screw locking machine is arranged on the slide D, a driving cylinder A is arranged on the slide C, and the driving cylinder A is connected to the slide D.

[0012] The glue injection mechanism includes a guide rail E arranged on a slide C along a direction perpendicular to the profile, a slide E is provided on the guide rail E, a drive cylinder B is provided on the slide C, the drive cylinder B is connected to the slide E, a glue barrel and a glue injection cylinder are provided on the slide E, and the glue injection cylinder is connected to the glue barrel.

[0013] The double-head corner assembly machine comprises a frame A, on which two door and window screw corner assembly units as described above are arranged at intervals, and the distance between the two door and window screw corner assembly units is adjustable. The two door and window screw corner assembly units cooperate to perform corner assembly processing on two corners of the door and window at the same time.

[0014] An adjusting guide rail A is provided on the frame A, wherein one of the door and window screw angle assembly units is arranged at one end of the frame A, and the other door and window screw angle assembly unit is slidably arranged on the adjusting guide rail A. An adjusting nut seat A and an adjusting nut A are provided at the bottom of the door and window screw angle assembly unit arranged on the adjusting guide rail A. An adjusting motor A is provided at one end of the frame A, and the adjusting motor A is connected to an adjusting screw A, and the adjusting screw A is connected to the adjusting nut A.

[0015] The four-head corner assembly machine comprises a frame B, on which a platform A and a platform B are arranged at intervals in the transverse direction, and the distance between the platforms A and B is adjustable, two door and window screw corner assembly units are arranged at intervals in the longitudinal direction on the platform A, and two door and window screw corner assembly units are arranged at intervals in the longitudinal direction on the platform B, and the four door and window screw corner assembly units cooperate to perform corner assembly processing on the four corners of the door and window at the same time.

[0016] An adjusting guide rail B is horizontally provided on the frame B, the platform A is arranged at one end of the frame B, the platform B is slidably arranged on the adjusting guide rail B, an adjusting nut seat B and an adjusting nut B are arranged at the lower end of the platform B, an adjusting motor B is arranged at the end of the frame B, the adjusting motor B is connected with an adjusting screw B, and the adjusting screw B is installed on the adjusting nut B, and adjusting guide rails C are longitudinally provided on the upper ends of the platforms A and B respectively, one of the door and window screw angle assembly units is arranged at one end of the platform A or the platform B, and the other door and window screw angle assembly unit is slidably arranged on the adjusting guide rail C and an adjusting nut seat C and an adjusting nut C are arranged at the bottom thereof, and adjusting motors C are respectively provided at the ends of the platforms A and B, the adjusting motor C is connected with an adjusting screw C, and the adjusting screw C is installed on the adjusting nut C.

[0017] The utility model adopts the above structure, which can bring the following beneficial effects:

[0018] By adopting a simpler positioning fixture, the 90° corner positioning and clamping of the two profiles can be achieved, and the two profiles can be corner-assembled separately using a two-screw corner assembly structure set vertically; the drilling, screwing and glue injection processes are integrated on the three-platform mechanism, which is not only compact in structure but also highly integrated. There is no need for subsequent separate glue injection, which helps to improve the efficiency of door and window corner assembly. Description of the drawings:

[0019] Figure 1 It is a top view structural schematic diagram of the door and window screw corner assembly unit of the utility model;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the door and window screw corner assembly unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the bottom view of the structure of the door and window screw corner assembly unit of the utility model;

[0023] Figure 5 This is a schematic diagram of the side and rear structure of the door and window screw corner assembly unit of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the double-head angle combining machine of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the four-head corner assembly machine of the utility model;

[0026] In the figure, 1, base, 2, workbench, 3, positioning fixture, 301, positioning block, 302, support plate, 303, side pressure slide, 304, side pressure plate, 305, side pressure cylinder, 4, profile, 5, screw angle assembly structure, 6, three-translation mechanism, 601, guide rail A, 602, slide seat A, 603, nut seat A, 604, nut A, 605, motor A, 606, screw Bar A, 607, stand, 608, guide rail B, 609, slide B, 610, nut seat B, 611, nut B, 612, motor B, 613, lead screw B, 614, guide rail C, 615, slide C, 616, nut seat C, 617, nut C, 618, motor C, 619, lead screw C, 7, punching mechanism, 701, punching motor, 702, punching knife Tools, 8. Screw-driving mechanism, 801. Guide rail D, 802. Slide seat D, 803. Automatic screw locking machine, 804. Drive cylinder A, 9. Glue injection mechanism, 901. Guide rail E, 902. Slide seat E, 903. Drive cylinder B, 904. Glue barrel, 905. Grouting cylinder, 10. Frame A, 11. Adjust guide rail A, 12. Adjust nut seat A, 13. Adjust nut A, 14. Adjust motor A, 15. Adjust lead screw A, 16. Frame B, 17. Platform A, 18. Platform B, 19. Adjust guide rail B, 20. Adjust nut seat B, 21. Adjust nut B, 22. Adjust motor B, 23. Adjust lead screw B, 24. Adjust guide rail C, 25. Adjust nut seat C, 26. Adjust nut C, 27. Adjust motor C, 28. Adjust lead screw C. Specific implementation method:

[0027] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0029] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0030] In addition, the terms "front end", "rear end", "lateral", "longitudinal", "vertical", "A", "B", etc. are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the position of the indicated technical features.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "provided with", "set", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1-5 As shown, the door and window screw corner assembly unit includes a base 1, a workbench 2 is provided on the base 1, a positioning fixture 3 is provided on the upper end of the workbench 2, the positioning fixture 3 positions and clamps two profiles 4 with a 90° angle, two screw corner assembly structures 5 are respectively provided on the base 1, the two screw corner assembly structures 5 are vertically arranged, each screw corner assembly structure 5 corresponds to a profile 4 for corner assembly processing, the screw corner assembly structure 5 includes three translation mechanisms 6, the three translation mechanisms 6 move along the length direction of the profile 4, vertically and in a direction perpendicular to the profile, a punching mechanism 7, a screw driving mechanism 8 and a glue injection mechanism 9 are respectively arranged at the ends of the three translation mechanisms 6, and the punching mechanism 7, the screw driving mechanism 8 and the glue injection mechanism 9 are arranged in a direction perpendicular to the profile 4. A simpler positioning fixture 3 is used to realize the 490° corner positioning and clamping of the two profiles, and a vertically arranged two-screw corner assembly structure 5 is used to perform corner assembly processing on the two profiles 4 respectively; the drilling, screw driving and glue injection processes are integrated on the three-platform mechanism 6, which is not only compact in structure but also highly integrated, and does not require subsequent separate glue injection, which helps to improve the efficiency of door and window corner assembly.

[0033] The positioning fixture 3 includes two positioning blocks 301 for positioning the corners of the two profiles 4 and two supporting plates 302 for positioning the edges of the profiles 4. The two positioning blocks 301 are vertically arranged, and the two supporting plates 302 are vertically arranged. The positioning blocks 301 and supporting plates 302 on the same side are aligned. The side pressure slide grooves 303 are vertically arranged on the workbench 2. The side pressure slide grooves 303 are provided with side pressure plates 304. The workbench 2 is provided with side pressure cylinders 305. The side pressure cylinders 305 are connected to the side pressure plates 304. The side pressure plates 304 cooperate with the supporting plates 302 to clamp the profiles 4. The specific structure of the positioning fixture 3 is given. A relatively simple structure is used to realize the positioning and clamping of the two profiles at the corners, providing a positioning reference for subsequent drilling, screwing and injection.

[0034] The three-translational mechanism 6 includes a guide rail A601 arranged along the length direction of the profile 4, a slide seat A602 is arranged on the guide rail A601, a nut seat A603 and a nut A604 are arranged on the slide seat A602, a motor A605 is arranged on the base 1, the motor A605 is connected to a lead screw A606, the lead screw A606 is installed on the nut A604, a stand 607 is arranged on the slide seat A602, a guide rail B608 is vertically arranged on the stand 607, a slide seat B609 is arranged on the guide rail B608, a nut seat B610 and a nut B611 are arranged on the slide seat 609, and the stand 60 7 is vertically provided with a motor B612, the motor B612 is connected with a lead screw B613, the lead screw B613 is mounted on a nut B611, the slide B609 is provided with a guide rail C614 in a direction perpendicular to the profile 4, the guide rail C614 is provided with a slide C615, the slide C615 is provided with a nut seat C616 and a nut C617, the end of the slide B609 is provided with a motor C618, the motor C618 is connected with a lead screw C619, the lead screw C619 is mounted on a nut C617, and the slide C615 is provided with a punching mechanism 7, a screw driving mechanism 8 and a glue injection mechanism 9. The servo lead screw transmission is used for translation adjustment in space, which has the advantages of fast operation speed and high operation accuracy.

[0035] The punching mechanism 7 includes a punching motor 701 arranged on a slide seat C615 in a direction perpendicular to the profile 4, and a punching tool 702 is arranged on the punching motor 701. The punching mechanism 7 cooperates with the three-translation mechanism 6 to punch holes on the outside of the profile, and the holes punched here include screw installation holes and glue injection holes.

[0036] The screw-driving mechanism 8 includes a guide rail D801 arranged on a slide C615 in a direction perpendicular to the profile 4, a slide D802 is arranged on the guide rail D801, an automatic screw-locking machine 803 is arranged on the slide D802, and a driving cylinder A804 is arranged on the slide C615, and the driving cylinder A804 is connected to the slide D802. The automatic screw-locking machine 803 belongs to the prior art, and can realize the actions of automatic screwing and automatic screw-driving, and can be directly customized or purchased. Cooperating with the three-translational mechanism 6, the screw is threadedly connected to the angle code through the mounting hole (the hole processed by the punching mechanism 7). The angle code here refers to the angle code used for corner assembly, which belongs to the prior art. At the same time, the threaded hole is processed on the angle code in advance, and the screw is directly tightened on the threaded hole of the angle code through the mounting hole, thereby fastening the profile 4 and the angle code together.

[0037] The glue injection mechanism 9 includes a guide rail E901 arranged on a slide seat C615 in a direction perpendicular to the profile 4, a slide seat E902 is arranged on the guide rail E901, a driving cylinder B903 is arranged on the slide seat C615, the driving cylinder B903 is connected to the slide seat E902, a glue barrel 904 and a glue injection cylinder 905 are arranged on the slide seat E902, and the glue injection cylinder 905 is connected to the glue barrel 904. The specific structure of the glue injection mechanism 9 is given, and the corners of the door and window assembly are sealed by glue injection.

[0038] like Figure 6 As shown, the double-head angle assembly machine includes a frame A10, on which two door and window screw angle assembly units as described above are arranged at intervals (the base 1 is installed on the frame A10), and the distance between the two door and window screw angle assembly units is adjustable, and the two door and window screw angle assembly units cooperate to perform angle assembly processing on two corners of the door and window at the same time. The two adjacent corners of the door and window can be angled at the same time, and the efficiency of door and window angle assembly is further improved.

[0039] The frame A10 is provided with an adjustment rail A11, one of the door and window screw angle assembly units is arranged at one end of the frame A10, and the other door and window screw angle assembly unit is slidably arranged on the adjustment rail A11, and the bottom of the door and window screw angle assembly unit arranged on the adjustment rail A11 is provided with an adjustment nut seat A12 and an adjustment nut A13, and one end of the frame A10 is provided with an adjustment motor A14, and the adjustment motor A14 is connected to an adjustment screw A15, and the adjustment screw A15 is connected to the adjustment screw A13. A servo screw transmission is used to adjust the spacing between the two door and window screw angle assembly units according to the size of the door and window.

[0040] like Figure 7As shown, a four-head corner assembly machine includes a frame B16, on which a platform A17 and a platform B18 are arranged at a lateral interval, and the distance between the platforms A17 and B18 is adjustable, two door and window screw corner assembly units are arranged at a longitudinal interval on the platform A17, and two door and window screw corner assembly units are arranged at a longitudinal interval on the platform B18, and the four door and window screw corner assembly units cooperate to perform corner assembly processing on the four corners of doors and windows at the same time.

[0041] An adjusting guide rail B19 is transversely provided on the frame B16, the platform A17 is arranged at one end of the frame B16, the platform B18 is slidably arranged on the adjusting guide rail B19, an adjusting nut seat B20 and an adjusting nut B21 are arranged at the lower end of the platform B18, an adjusting motor B22 is arranged at the end of the frame B16, the adjusting motor B22 is connected with an adjusting screw B23, and the adjusting screw B23 is installed on the adjusting nut B21, and adjusting guide rails C24 are longitudinally provided on the upper ends of the platforms A17 and B18 respectively, one of the door and window screw angle assembly units is arranged at one end of the platform A17 or the platform B18, and the other door and window screw angle assembly unit is slidably arranged on the adjusting guide rail C24 and an adjusting nut seat C25 and an adjusting nut C26 are arranged at the bottom thereof, and adjusting motors C27 are respectively arranged at the ends of the platforms A17 and B18, the adjusting motor C27 is connected with an adjusting screw C28, and the adjusting screw C28 is installed on the adjusting nut C23. Servo screw drive is used to achieve adaptive spacing adjustment according to the size of doors and windows, thereby meeting the angle requirements of doors and windows of different models.

[0042] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0043] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. Door and window screw corner unit, characterized in that: It includes a base, a workbench is provided on the base, a positioning fixture is provided on the upper end of the workbench, the positioning fixture positions and clamps two profiles with a 90° angle, two screw angle structures are respectively provided on the base, the two screw angle structures are vertically arranged, each screw angle structure corresponds to a profile for angle processing, the screw angle structure includes three translation mechanisms, the three translation mechanisms move along the length direction of the profile, vertically and in a direction perpendicular to the profile in turn, a punching mechanism, a screw driving mechanism and a glue injection mechanism are respectively arranged at the ends of the three translation mechanisms, and the punching mechanism, the screw driving mechanism and the glue injection mechanism are arranged in a direction perpendicular to the profile.

2. The door and window screw corner assembly unit according to claim 1, characterized in that: The positioning fixture includes two positioning blocks for positioning the corners of the two profiles and two support plates for positioning the edges of the profiles. The two positioning blocks are vertically arranged, and the two support plates are vertically arranged. The positioning blocks and the support plates on the same side are aligned. The side pressure slides are vertically arranged on the workbench, and the side pressure slides are provided with side pressure plates. The workbench is provided with side pressure cylinders, and the side pressure cylinders are connected to the side pressure plates. The side pressure plates cooperate with the support plates to clamp the profiles.

3. The door and window screw corner assembly unit according to claim 1 or 2, characterized in that: The three-translational mechanism includes a guide rail A arranged along the length direction of the profile, a slide A is provided on the guide rail A, a nut seat A and a nut A are provided on the slide A, a motor A is provided on the base, the motor A is connected to a lead screw A, the lead screw A is installed on the nut A, a stand is provided on the slide A, a guide rail B is vertically provided on the stand, a slide B is provided on the guide rail B, a nut seat B and a nut B are provided on the slide B, a motor B is vertically provided on the upper end of the stand, the motor B is connected to a lead screw B, the lead screw B is installed on the nut B, a guide rail C is provided on the slide B along a direction perpendicular to the profile, a slide C is provided on the guide rail C, a nut seat C and a nut C are provided on the slide C, a motor C is provided at the end of the slide B, the motor C is connected to a lead screw C, the lead screw C is installed on the nut C, and a punching mechanism, a screw driving mechanism and a glue injection mechanism are respectively provided on the slide C.

4. The door and window screw corner assembly unit according to claim 3, characterized in that: The punching mechanism comprises a punching motor arranged on a slide seat C in a direction perpendicular to the profile, and a punching tool is arranged on the punching motor.

5. The door and window screw corner assembly unit according to claim 4, characterized in that: The screw driving mechanism includes a guide rail D arranged on a slide C along a direction perpendicular to the profile, a slide D is arranged on the guide rail D, an automatic screw locking machine is arranged on the slide D, a driving cylinder A is arranged on the slide C, and the driving cylinder A is connected to the slide D.

6. The door and window screw corner assembly unit according to claim 5, characterized in that: The glue injection mechanism includes a guide rail E arranged on a slide C along a direction perpendicular to the profile, a slide E is provided on the guide rail E, a drive cylinder B is provided on the slide C, the drive cylinder B is connected to the slide E, a glue barrel and a glue injection cylinder are provided on the slide E, and the glue injection cylinder is connected to the glue barrel.

7. Double-head angle combining machine, characterized in that: The machine comprises a frame A, on which two door and window screw corner assembly units as claimed in claim 6 are arranged at intervals, and the distance between the two door and window screw corner assembly units is adjustable. The two door and window screw corner assembly units cooperate to perform corner assembly processing on two corners of the door and window at the same time.

8. The double-head angle combining machine according to claim 7, characterized in that: An adjusting guide rail A is provided on the frame A, wherein one of the door and window screw angle assembly units is arranged at one end of the frame A, and the other door and window screw angle assembly unit is slidably arranged on the adjusting guide rail A. An adjusting nut seat A and an adjusting nut A are provided at the bottom of the door and window screw angle assembly unit arranged on the adjusting guide rail A. An adjusting motor A is provided at one end of the frame A, and the adjusting motor A is connected to an adjusting screw A, and the adjusting screw A is connected to the adjusting nut A.

9. Four-head corner assembly machine, characterized in that: The machine comprises a frame B, on which a platform A and a platform B are arranged at a lateral interval, and the distance between the platforms A and B is adjustable; on the platform A, two door and window screw corner assembly units as claimed in claim 6 are arranged at a longitudinal interval, and on the platform B, two door and window screw corner assembly units as claimed in claim 6 are arranged at a longitudinal interval, and the four door and window screw corner assembly units cooperate to perform corner assembly processing on the four corners of doors and windows at the same time.

10. The four-head angle combining machine according to claim 9, characterized in that: An adjusting guide rail B is horizontally provided on the frame B, the platform A is arranged at one end of the frame B, the platform B is slidably arranged on the adjusting guide rail B, an adjusting nut seat B and an adjusting nut B are arranged at the lower end of the platform B, an adjusting motor B is arranged at the end of the frame B, the adjusting motor B is connected with an adjusting screw B, and the adjusting screw B is installed on the adjusting nut B, and adjusting guide rails C are longitudinally provided on the upper ends of the platforms A and B respectively, one of the door and window screw angle assembly units is arranged at one end of the platform A or the platform B, and the other door and window screw angle assembly unit is slidably arranged on the adjusting guide rail C and an adjusting nut seat C and an adjusting nut C are arranged at the bottom thereof, and adjusting motors C are respectively provided at the ends of the platforms A and B, the adjusting motor C is connected with an adjusting screw C, and the adjusting screw C is installed on the adjusting nut C.

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