Automatic locking device for corner combining cutter

Abstract

The utility model relates to an automatic locking device for corner combining cutters, which comprises a cutter holder, a sliding groove is vertically arranged on the cutter holder, a plurality of vertically adjustable corner combining cutters are arranged on the sliding groove, a locking pressing plate is rotatably arranged on the side wall of the cutter holder, an eccentric wheel is rotatably arranged at one end of the locking pressing plate, and a pressing roller is rotatably arranged at the other end of the locking pressing plate. A driver for driving the eccentric wheel to rotate is arranged on the side wall of the tool apron, the eccentric wheel acts on the side wall of the tool apron when rotating so as to drive the locking pressing plate to rotate, and the locking pressing plate rotates to drive the pressing roller on the locking pressing plate to act on the side wall of the corner combining tool to lock the corner combining tool. The locking device has the advantages of being reasonable in structural design, capable of automatically locking the corner combining cutter, high in locking efficiency, reliable in locking 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 an automatic locking device for a corner assembly knife. Background technology:

[0002] Cornering knives are essential components of punching and riveting cornering machines. In practical applications, in order to meet the cornering requirements of most profiles, the cornering knives need to be adjusted vertically. Earlier cornering knives could not be adjusted individually. In order to meet the cornering requirements of different profiles, the cornering components had to be replaced as a whole set. This was not only cumbersome, time-consuming and labor-intensive, but also required the preparation of multiple sets of cornering components, resulting in a high overall cost. In recent years, in order to reduce the adjustment cost, the existing technology uses screw or magnetic suction technology to realize the vertical adjustment of a single cornering knife (usually two cornering knives are required). For example, a Chinese patent discloses an aluminum door and window corner code cornering machine with adjustable cornering knife (authorization announcement number: CN218745973U). This technology uses a servo motor and a lead screw to realize the lifting and lowering adjustment of a single cornering knife. In this way, there is no need to replace the entire set of cornering components, which not only reduces costs, but also makes the adjustment relatively quick and convenient. Although the above technical solution realizes the lifting and lowering adjustment of a single cornering knife, the stability of the cornering knife is relatively poor, and the cornering knife is the main impact component during cornering, so it is necessary to lock the cornering knife. The existing technology for locking the cornering knife mainly adopts two technical ideas. One is to use a precise vertical guide groove (similar to the principle of a guide rail slider) to limit the cornering knife horizontally, and then cooperate with the servo motor or locking nut and other structures for adjustment to limit the vertical position. Although this technical idea can achieve the limit, the cornering knife needs to be adjusted vertically after all, so a gap must be left. It can barely meet the requirements for low processing accuracy, but it cannot meet the processing requirements for high-end doors and windows or doors and windows for home decoration. Another technical idea is to use a threaded connection with a clamping block to press the cornering knife horizontally. This technical solution can achieve the locking of the cornering knife and improve the cornering processing accuracy, but each locking requires manual screw tightening, which affects the adjustment efficiency of the cornering knife, and the threaded connection is easy to loosen after long-term use or frequent replacement, affecting the locking effect. Therefore, based on the existing technology, it is necessary to design a new cornering knife locking technical solution that can not only achieve reliable locking, but also realize automatic locking and significantly improve efficiency.

[0003] 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:

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to provide an automatic locking device for a cornering knife, which has the advantages of reasonable structural design, automatic locking of the cornering knife, high locking efficiency, reliable locking, etc.

[0005] The utility model achieves the above-mentioned purpose by adopting the following technical solutions:

[0006] An automatic locking device for a cornering knife comprises a knife seat, a slide groove is vertically provided on the knife seat, a plurality of vertically adjustable cornering knives are provided on the slide groove, a locking pressure plate is rotatably provided on the side wall of the knife seat, an eccentric wheel is rotatably provided on one end of the locking pressure plate, and a pressure roller is rotatably provided on the other end, a driver for driving the eccentric wheel to rotate is provided on the side wall of the knife seat, when the eccentric wheel rotates, it acts on the side wall of the knife seat and thereby drives the locking pressure plate to rotate, and the rotation of the locking pressure plate drives the pressure roller thereon to act on the side wall of the cornering knife to lock it.

[0007] The locking pressure plate is designed to be L-shaped.

[0008] Two protrusions are vertically spaced apart on the side wall of the tool holder, and the corresponding locking pressure plate is provided with an avoidance hole, a distance is provided between the avoidance hole and the protrusion, a mounting hole A is vertically provided on the protrusion, and the corresponding locking pressure plate is provided with a mounting hole B, and a rotating support shaft A is provided on the mounting hole A and the mounting hole B.

[0009] The locking plate is provided with two threaded holes A at intervals in vertical direction, and the threaded holes A are provided with set screws A, which act on the rotating support shaft A to prevent it from falling off.

[0010] The locking pressure plate is provided with a protrusion at one end of the eccentric wheel, a groove is provided in the middle of the protrusion, a mounting hole is vertically provided on the protrusion, a rotating support shaft B is provided on the mounting hole, an eccentric wheel is rotatably provided on the rotating support shaft B, and the eccentric wheel is located in the groove.

[0011] A threaded hole B is provided on the side wall of the protrusion, and a set screw B is provided on the threaded hole B. The set screw B acts on the rotating support shaft B to prevent it from falling off.

[0012] The locking pressure plate is provided with a mounting groove at one end close to the angle assembly knife, the pressure roller is vertically arranged in the mounting groove, and pressure covers are respectively provided at the upper and lower ends of the mounting groove, and the pressure covers are fastened to the locking pressure plate by screws.

[0013] The locking platen is provided with a plurality of adjusting threaded holes at vertical intervals, and the adjusting threaded holes are provided with adjusting screws, and the front end of the adjusting screws acts on the pressure roller.

[0014] The driver comprises a cylinder seat arranged on the knife seat, a driving cylinder is rotatably arranged on the cylinder seat, a connecting head is arranged on the driving cylinder, the connecting head is rotatably connected to a driving rod, and the driving rod is fixedly arranged on the side wall of the eccentric wheel.

[0015] The utility model adopts the above structure, which can bring the following beneficial effects:

[0016] The locking plate, eccentric wheel and cylinder drive are used to realize that the locking plate is driven to rotate by the rotation of the eccentric wheel, and then the upper pressure roller acts on the side wall of the angle combination knife, which can not only realize automatic locking, but also has high locking efficiency and reliable locking. Description of the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the automatic locking device for corner cutting tools of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model corner cutter automatic locking device from another perspective;

[0019] Figure 3 This is an exploded view of the automatic locking device for corner cutting tools of the utility model;

[0020] Figure 4 It is an exploded view of the automatic locking device for corner cutting tools of the utility model from another perspective;

[0021] Figure 5 It is a structural schematic diagram of the automatic locking device for corner combination cutters of the utility model applied to an existing punching and riveting mechanism;

[0022] In the figure, 1, knife seat, 2, slide groove, 3, cornering knife, 4, locking pressure plate, 5, eccentric wheel, 6, pressure roller, 7, driver, 701, cylinder seat, 702, driving cylinder, 703, connecting head, 704, driving rod, 8, bump, 9, avoidance hole, 10, spacing, 11, mounting hole A, 12, mounting hole B, 13, rotating support shaft A, 14, threaded hole A, 15, set screw A, 16, protrusion, 17, groove, 18, mounting hole, 19, rotating support shaft B, 20, threaded hole B, 21, set screw B, 22, mounting groove, 23, pressure cover, 24, screw, 25, adjusting threaded hole, 26, adjusting screw, 27, existing cornering knife adjustment mechanism, 28, existing punching and riveting mechanism. Specific implementation method:

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Furthermore, the terms “vertical”, “upper end”, “A”, “B”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the location of the indicated technical features.

[0027] 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.

[0028] like Figure 1-5 As shown, the automatic locking device for the cornering knife comprises a knife seat 1, a slide groove 2 is vertically provided on the knife seat 1, a plurality of vertically adjustable cornering knives 3 are provided on the slide groove 2, a locking pressure plate 4 is rotatably provided on the side wall of the knife seat 1, an eccentric wheel 5 is rotatably provided on one end of the locking pressure plate 4, and a pressure roller 6 is rotatably provided on the other end, a driver 7 for driving the eccentric wheel 5 to rotate is provided on the side wall of the knife seat 1, the eccentric wheel 5 rotates and acts on the side wall of the knife seat 1 to drive the locking pressure plate 4 to rotate, the locking pressure plate 4 rotates and drives the pressure roller 6 thereon to act on the side wall of the cornering knife 3, thereby locking the cornering knife 3. The present application adopts the locking pressure plate 4, the eccentric wheel 5 and the driving cylinder 702 to drive the locking pressure plate 4 to rotate by utilizing the eccentric rotation of the eccentric wheel 5 in cooperation with the knife seat 1, thereby causing the pressure roller 6 thereon to act on the side wall of the cornering knife 3, thereby realizing the locking of the cornering knife 3. This application can not only realize automatic locking, but also has high locking efficiency and reliable locking.

[0029] The locking plate 4 is designed to be L-shaped. Considering the structure of the knife seat 1 and the compactness of the structural design, the locking plate 4 is designed to be L-shaped to match the shape of the side wall of the knife seat 1, and the overall design is more compact and reasonable.

[0030] Two protrusions 8 are vertically spaced apart on the side wall of the tool holder 1, and the corresponding locking plate 4 is provided with an avoidance hole 9, and a spacing 10 is provided between the avoidance hole 9 and the protrusion 8 (to leave enough space for the locking plate 4 to rotate and avoid interference), and a mounting hole A11 is vertically provided on the protrusion 8, and a mounting hole B12 is correspondingly provided on the locking plate 4, and a rotation support shaft A13 is provided on the mounting hole A11 and the mounting hole B12. The specific structural form of the locking plate 4 rotating relative to the tool holder 1 is given, which has the advantages of compact structure and reliable rotation.

[0031] The locking plate 4 is provided with two threaded holes A14 spaced apart vertically, and the threaded holes A14 are provided with set screws A15, which act on the rotating support shaft A13 to prevent it from falling off.

[0032] The locking platen 4 is provided with a protrusion 16 at one end of the eccentric wheel 5, a groove 17 is provided in the middle of the protrusion 16, a mounting hole 18 is vertically provided on the protrusion 16, a rotating support shaft B19 is provided on the mounting hole 18, an eccentric wheel 5 is rotatably provided on the rotating support shaft B19, and the eccentric wheel 5 is located in the groove 17. A specific mounting structure of the eccentric wheel 5 is provided to achieve reliable mounting of the eccentric wheel 5, and when the eccentric wheel 5 rotates, it can cooperate with the side wall of the tool holder 1 to drive the locking platen 4 to rotate.

[0033] A threaded hole B20 is provided on the side wall of the protrusion 16, and a set screw B21 is provided on the threaded hole B20. The set screw B21 acts on the rotating support shaft B19 to prevent it from falling off.

[0034] The locking platen 4 is provided with a mounting groove 22 at one end close to the cornering knife 3, the pressing roller 6 is vertically arranged in the mounting groove 22, and the upper and lower ends of the mounting groove 22 are respectively provided with pressure covers 23, and the pressure covers 23 are fastened to the locking platen 4 by screws 24. The specific installation form of the pressing roller 6 is given.

[0035] The locking plate 4 is vertically spaced with a plurality of adjusting threaded holes 25, and the adjusting threaded holes 25 are provided with adjusting screws 26, and the front end of the adjusting screws 26 acts on the pressure roller 6. The position of the pressure roller 6 can be adjusted by the adjusting screws 26 according to actual needs, so that it can better act on the side wall of the cornering knife 3.

[0036] The driver 7 includes a cylinder seat 701 disposed on the knife seat 1, a driving cylinder 702 is rotatably disposed on the cylinder seat 701, a connecting head 703 is disposed on the piston rod of the driving cylinder 702, the connecting head 703 is rotatably connected to a driving rod 704, and the driving rod 704 is fixedly disposed on the side wall of the eccentric wheel 5. The specific structure of the driver 7 is given, and pneumatic drive is realized by using the driving cylinder 702, which can provide continuous and reliable pneumatic driving force.

[0037] Instructions for use of the automatic locking device for the corner cutter of this application:

[0038] In actual operation, the technical solution of the present application is applied to the existing punching and riveting mechanism 28 (only part of the structure of the existing punching and riveting mechanism 28 is shown in the attached figure). First, the existing cornering knife adjustment mechanism 27 (a method of adjustment using a servo motor and a lead screw is shown in the attached figure) is used to adjust the vertical position of the cornering knife 3. When the position of the cornering knife 3 is adjusted, it is locked. First, the driving cylinder 702 is started. The driving cylinder 702 drives the eccentric wheel 5 to rotate through the driving rod 704. When the eccentric wheel 5 rotates, it acts on the side wall of the knife seat 1. Under the action of the side wall of the knife seat 1, the locking plate 4 is driven to rotate. The locking plate 4 rotates so that the pressure roller 6 thereon acts on the side wall of the cornering knife 3, thereby locking the cornering knife 3. When the cornering knife 3 needs to be adjusted, the cornering knife 3 is first released by rotating the driving cylinder 702 in the opposite direction.

[0039] 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.

[0040] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. The automatic locking device for the cornering knife is characterized by: It includes a knife seat, a slide groove is vertically provided on the knife seat, a plurality of vertically adjustable cornering knives are provided on the slide groove, a locking pressure plate is rotatably provided on the side wall of the knife seat, an eccentric wheel is rotatably provided on one end of the locking pressure plate, and a pressure roller is provided on the other end, a driver for driving the eccentric wheel to rotate is provided on the side wall of the knife seat, when the eccentric wheel rotates, it acts on the side wall of the knife seat and then drives the locking pressure plate to rotate, and the rotation of the locking pressure plate drives the pressure roller thereon to act on the side wall of the cornering knife to lock it.

2. The automatic locking device for cornering cutters according to claim 1, characterized in that: The locking pressure plate is designed to be L-shaped.

3. The automatic locking device for cornering cutters according to claim 1 or 2, characterized in that: Two protrusions are vertically spaced apart on the side wall of the tool holder, and the corresponding locking pressure plate is provided with an avoidance hole, a distance is provided between the avoidance hole and the protrusion, a mounting hole A is vertically provided on the protrusion, and the corresponding locking pressure plate is provided with a mounting hole B, and a rotating support shaft A is provided on the mounting hole A and the mounting hole B.

4. The automatic locking device for cornering cutters according to claim 3, characterized in that: The locking plate is provided with two threaded holes A at intervals in vertical direction, and the threaded holes A are provided with set screws A, which act on the rotating support shaft A to prevent it from falling off.

5. The automatic locking device for cornering cutters according to claim 4, characterized in that: The locking pressure plate is provided with a protrusion at one end of the eccentric wheel, a groove is provided in the middle of the protrusion, a mounting hole is vertically provided on the protrusion, a rotating support shaft B is provided on the mounting hole, an eccentric wheel is rotatably provided on the rotating support shaft B, and the eccentric wheel is located in the groove.

6. The automatic locking device for cornering cutters according to claim 5, characterized in that: A threaded hole B is provided on the side wall of the protrusion, and a set screw B is provided on the threaded hole B. The set screw B acts on the rotating support shaft B to prevent it from falling off.

7. The automatic locking device for cornering cutters according to claim 6, characterized in that: The locking pressure plate is provided with a mounting groove at one end close to the angle assembly knife, the pressure roller is vertically arranged in the mounting groove, and pressure covers are respectively provided at the upper and lower ends of the mounting groove, and the pressure covers are fastened to the locking pressure plate by screws.

8. The automatic locking device for cornering cutters according to claim 7, characterized in that: The locking platen is provided with a plurality of adjusting threaded holes at vertical intervals, and the adjusting threaded holes are provided with adjusting screws, and the front end of the adjusting screws acts on the pressure roller.

9. The automatic locking device for cornering cutters according to claim 1 or 8, characterized in that: The driver comprises a cylinder seat arranged on the knife seat, a driving cylinder is rotatably arranged on the cylinder seat, a connecting head is arranged on the driving cylinder, the connecting head is rotatably connected to a driving rod, and the driving rod is fixedly arranged on the side wall of the eccentric wheel.

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