High-precision metal wire bending equipment
By using a combination of a precise calibration mechanism and a core bending mechanism in the metal wire bending equipment, the problem of wave deformation after straightening of the metal wire is solved, and high-precision metal wire bending is achieved.
Patent Information
- Application Number
- CN202421455711.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-24
AI Technical Summary
After the existing bending machines straighten the metal wire, the wire will appear slight waves, resulting in insufficient subsequent bending accuracy.
A high-precision metal wire bending device is designed, and the precise calibration mechanism includes a camera, a crimping base and a crimping head. By accurately straightening and controlling the movement of the bending mechanism, the amount of wire protrusion is offset.
The linearity of the metal wire is improved, the high accuracy of the bent product is ensured, and the compact arrangement of the structure can be achieved in a limited space.
Smart Images
Figure CN222754309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of metal wire bending, in particular to a high-precision metal wire bending device. Background Art
[0002] The bending machine is a rotary bending device used in wire bending machines. The bending machine generally includes a wire straightening mechanism, a wire feeding mechanism, and a bending mechanism. The bent or deformed wire is straightened by the wire straightening mechanism, and then the wire is output by the wire feeding mechanism. Finally, the wire is positioned and bent by the bending mechanism to form a structure of the corresponding shape.
[0003] Existing bending machines generally use multiple wheel groups or roller groups to straighten wires. With this straightening method, the straightened wire will have slight waves. After the bending equipment corrects the wavy deformation area of the wire, the metal wire will extend a short distance in the transmission direction, causing the subsequent bending core mechanism to bend the starting end of the extended metal wire beyond the pre-set starting end, resulting in insufficient precision of the bent product.
[0004] The purpose of this utility model is to design a high-precision metal wire bending device in view of the problems existing in the above-mentioned prior art. Utility Model Content
[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a high-precision metal wire bending device, which can effectively solve at least one problem existing in the above-mentioned prior art.
[0006] The technical solution of the utility model is:
[0007] A high-precision metal wire bending device, comprising:
[0008] A wire conveying mechanism, used for receiving metal wires and outputting the metal wires;
[0009] A precise correction mechanism, the precise correction mechanism comprising a camera, a wire crimping base, and a plurality of wire crimping heads, the camera being arranged at the front side of the output path of the metal wire, the wire crimping base being arranged at the lower side of the output path of the metal wire movably up and down, and the wire crimping heads being arranged at the upper side of the output path of the metal wire movably left and right, respectively, for precisely straightening the metal wire;
[0010] A core bending mechanism, used for receiving the precisely straightened metal wire, wherein the core bending mechanism is arranged to move left and right;
[0011] A control system is used to control the movement of the core bending mechanism and the left and right positions of the wire pressing head.
[0012] Furthermore, the wire crimping base is driven by a corresponding driving cylinder, and the wire crimping base is provided with a V-shaped groove. After the wire crimping base is lowered, it is sunk into the frame, and after the wire crimping base is raised, the metal wire is accommodated in the V-shaped groove.
[0013] Furthermore, a plurality of laterally distributed screw rod assemblies are arranged above the wire crimping base, each screw rod assembly is driven by a driving cylinder, and the driving cylinder drives one of the wire crimping heads to move up and down.
[0014] Furthermore, the wire pressing head is configured as a V-shaped structure that matches the V-shaped groove, and the wire pressing head presses the metal wire into the V-shaped groove after moving downward.
[0015] Furthermore, the bending core mechanism includes a bending core shaft, which is driven by a corresponding motor. The bending core shaft and the motor are arranged on a movable frame, and the movable frame is connected to the right side of the frame through a track, and the movable frame is driven by a corresponding driving cylinder.
[0016] Furthermore, the control system controls the movement amount of the core bending mechanism by controlling the extension amount of the driving cylinder.
[0017] Furthermore, the precise correction mechanism includes a backlight plate and a light source. The backlight plate is arranged at the rear side of the output path of the metal wire, and the light source is arranged at the front side of the output path of the metal wire.
[0018] Therefore, the utility model provides the following effects and / or advantages:
[0019] The present application improves the straightness of the output metal wire by a precise correction mechanism, and offsets the protrusion of the metal wire after being straightened by controlling the left and right movement of the bending core mechanism.
[0020] The present application has a compact structure through the arrangement of various structures, and can realize the arrangement of various structures in a limited space to achieve high-precision metal wire bending.
[0021] The present application can accurately control the position of the wire pressing head at the bent and deformed portion of the metal wire to precisely press and straighten it.
[0022] The present application sets a preset radius threshold, and controls the clamping action of the wire pressing head differently for different radii by judging whether the radius is greater than or less than the preset radius threshold, so as to adapt to different bending conditions of metal wires.
[0023] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.
[0024] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of an embodiment of the utility model from one perspective.
[0026] Figure 2 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model.
[0027] Figure 3 It is a structural schematic diagram of the precision correction mechanism and the core bending mechanism.
[0028] Figure 4 It is a schematic diagram of the working state of the embodiment of the utility model, in which the wire crimping base is raised and one of the wire crimping heads is pressed down.
[0029] Figure 5 It is a structural schematic diagram of the wire pressing base.
[0030] Figure 6 It is a structural schematic diagram of the screw rod assembly. DETAILED DESCRIPTION
[0031] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:
[0032] Embodiment 1
[0033] refer to Figure 1-6 , a high-precision metal wire bending device, comprising:
[0034] A straightening mechanism 1, used for receiving a metal wire 100 and preliminarily straightening the metal wire 100, the straightening mechanism 1 comprises a transverse straightening wheel set 102 and a longitudinal straightening wheel set 101, the transverse straightening wheel set 102 comprises a plurality of rollers staggered vertically, the longitudinal straightening wheel set 101 comprises a plurality of rollers staggered horizontally;
[0035] The wire conveying mechanism 2 is used to receive the metal wire 100 and output the metal wire 100;
[0036] A precise correction mechanism 3, the precise correction mechanism comprising a backlight plate 301, a light source 302, a camera 303, a wire pressing base 304, and a plurality of wire pressing heads 305, wherein the backlight plate 301 is arranged at the rear side of the output path of the metal wire 100, the light source 302 and the camera 303 are arranged at the front side of the output path of the metal wire 100, the wire pressing base 304 is arranged at the lower side of the output path of the metal wire 100 movably up and down, and the wire pressing heads 305 are respectively arranged at the upper side of the output path of the metal wire 100 movably left and right, for precisely straightening the metal wire 100;
[0037] The core bending mechanism 4 is used to receive the accurately straightened metal wire 100, and the core bending mechanism 4 is arranged to move left and right;
[0038] The control system is used to control the movement amount of the core bending mechanism 4 and the left and right position of the wire pressing head 305.
[0039] In this embodiment, the control system is used to obtain an image of the metal wire taken by a camera, and perform image analysis on the image of the metal wire to obtain the bending position of the image of the metal wire. The shape analysis can be obtained using the Canny algorithm in the prior art, thereby directly obtaining the curved portion of the image of the metal wire as the bending position of the metal wire.
[0040] The control system can control the wire pressing head 305 to move left and right, thereby controlling the left and right position of the wire pressing head 305, so as to press and straighten the metal wire at the bent position.
[0041] In this embodiment, the light source 302 and the camera 303 are arranged at the front side of the output path of the metal wire 100 and emit light toward the metal wire 100, thereby illuminating the metal wire 100, so that the camera 303 can take a clear photo of the metal wire 100. The backlight plate 301 is arranged at the rear side of the output path of the metal wire 100, so that the backlight plate 301 can be a white or other color panel, and the light source 302 is irradiated on the backlight plate 301, and then the camera 303 is used to take a photo, so that a clearer photo of the metal wire 100 can be obtained. Through this structure, the camera 303 can take a front view of the metal wire 100 from front to back, so as to obtain the bending condition of the metal wire 100 in the up and down directions. The wire crimping base 304 can be movably arranged up and down. Under normal circumstances, the wire crimping head 305 can be sunk below the frame or flush with the frame, and the wire crimping head 305 rises above the frame, thereby avoiding the output path of the metal wire 100 and allowing the metal wire 100 to be output smoothly. When the metal wire 100 needs to be accurately straightened, the wire crimping base 304 rises and the wire crimping head 305 descends, thereby straightening the metal wire 100.
[0042] In this embodiment, the bending core mechanism 4 can be directly adopted from the prior art, which can generally include a rotatable bending core shaft 401, and a fixed seat 402 arranged on the inner ring of the bending core shaft 401, and a through-core shaft 403 can be arranged on the fixed seat 402 to facilitate the passage of the metal wire 100, wherein the fixed seat 402 and the bending core shaft 401 can be respectively moved up and down, so that the metal wire 100 can pass through, and after the metal wire 100 is bent, the fixed seat 402 and the bending core shaft 401 sink together, so that the subsequent cutting mechanism can cut off the metal wire 100. Among them, since the through-core shaft 403 of the bending core mechanism 4 is generally provided with a groove parallel to the metal wire 100, so that the metal wire 100 can pass through, and the top thereof is an open structure, so that the through-core shaft 403 can rise and clamp the metal wire 100 in the horizontal direction, or descend to release the metal wire 100. If the metal wire 100 is bent in the front-to-back direction, it can generally be accurately straightened by the through-core shaft 403, and when the metal wire 100 is bent in the up-and-down direction, it cannot be straightened. Therefore, this embodiment proposes correction by the precise correction mechanism 3.
[0043] At the same time, after the metal wire 100 is precisely straightened, the originally bent part of the metal wire 100 is straightened, thereby unfolding the bent part, and the lateral length of the metal wire 100 has a certain amount of extension, which will pass through the core-penetrating shaft 403 and extend to a certain length. If the wire transmission mechanism 2 and the core bending mechanism 4 are directly controlled to work to realize the bending action of the metal wire 100, a certain amount of excess will appear at the front end of the metal wire 100. This embodiment obtains the extension amount of the metal wire 100 after straightening, controls the core bending mechanism 4 to move according to the extension amount, so that the core bending mechanism 4 moves to the right by a certain distance, offsets the excess amount that will appear at the front end of the metal wire 100 after being straightened, and ensures the accuracy of the bent product. Obtaining the extension amount of the metal wire 100 after straightening can be achieved by a laser projector and a laser receiver, which is a prior art. The control system drives the extension amount as the movement amount of the core bending mechanism 4.
[0044] Further, refer to Figure 5 The wire pressing base 304 is driven by a corresponding driving cylinder, and the wire pressing base 304 is provided with a V-shaped groove. After the wire pressing base 304 is lowered, it is sunk into the frame, and after the wire pressing base 304 is raised, the metal wire 100 is accommodated in the V-shaped groove. The V-shaped groove is used to accommodate the metal wire 100, so that the metal wire 100 is compressed and can be pressed straight along the V-shaped groove.
[0045] Further, refer to Figure 6A plurality of laterally distributed screw rod assemblies 5 are arranged above the wire crimping base 304, each screw rod assembly 5 is driven by a driving cylinder 501, and the driving cylinder 501 drives one of the wire crimping heads 305 to move up and down. The wire crimping head 305 is arranged to be a V-shaped structure matched with the V-shaped groove. After the wire crimping head 305 moves downward, the metal wire 100 is pressed tightly into the V-shaped groove.
[0046] In this embodiment, the threaded rods included in the screw assembly 5 are arranged in sequence from top to bottom, and each threaded rod drives a connecting seat with a thread, and the connecting seat is connected to a driving cylinder 501, so that the driving cylinder 501 can be moved in the left and right directions respectively. Preferably, the number of the screw assembly 5 and the wire pressing head 305 are both 3, which can be used for pressing above different bending parts.
[0047] Furthermore, the bending core mechanism 4 includes a bending core shaft 401, which is driven by a corresponding motor. The bending core shaft 401 and the motor are arranged on a movable frame 6, which is connected to the right side of the frame through a track, and the movable frame 6 is driven by a corresponding driving cylinder.
[0048] The movable frame 6 can be freely moved left and right through the track connection structure, and can be driven to move by the driving cylinder. Preferably, the driving cylinder is a stepping motor, and the movement amount of the movable frame 6 can be accurately controlled by controlling the number of steps of the stepping motor, thereby controlling the bending core mechanism 4 to move according to the extension amount.
[0049] Furthermore, the control system controls the movement amount of the core bending mechanism 4 by controlling the extension amount of the driving cylinder.
[0050] It should be noted that in the claims, any reference signs placed between brackets shall not be constructed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The utility model can be implemented with the aid of hardware comprising several different components and with the aid of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same hardware item. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.
[0051] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0052] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
Claims
1. A high-precision metal wire bending device, characterized in that: include: A wire conveying mechanism, used for receiving metal wires and outputting the metal wires; A precise correction mechanism, the precise correction mechanism comprising a camera, a wire crimping base, and a plurality of wire crimping heads, the camera being arranged at the front side of the output path of the metal wire, the wire crimping base being arranged at the lower side of the output path of the metal wire movably up and down, and the wire crimping heads being arranged at the upper side of the output path of the metal wire movably left and right, respectively, for precisely straightening the metal wire; A core bending mechanism, used for receiving the precisely straightened metal wire, wherein the core bending mechanism is arranged to move left and right; A control system is used to control the movement of the core bending mechanism and the left and right positions of the wire pressing head.
2. A high-precision metal wire bending device according to claim 1, characterized in that: The wire crimping base is driven by a corresponding driving cylinder. The wire crimping base is provided with a V-shaped groove. After the wire crimping base is lowered, it is sunk into the frame. After the wire crimping base is raised, the metal wire is accommodated in the V-shaped groove.
3. A high-precision metal wire bending device according to claim 2, characterized in that: A plurality of laterally distributed screw rod assemblies are arranged above the wire crimping base, each screw rod assembly is driven by a driving cylinder, and the driving cylinder drives one of the wire crimping heads to move up and down.
4. A high-precision metal wire bending device according to claim 3, characterized in that: The wire pressing head is configured as a V-shaped structure matched with the V-shaped groove, and the wire pressing head presses the metal wire into the V-shaped groove after moving downward.
5. The high-precision metal wire bending device according to claim 1, characterized in that: The bending core mechanism includes a bending core shaft, which is driven by a corresponding motor. The bending core shaft and the motor are arranged on a movable frame, which is connected to the right side of the frame through a track, and the movable frame is driven by a corresponding driving cylinder.
6. A high-precision metal wire bending device according to claim 5, characterized in that: The control system controls the movement amount of the core bending mechanism by controlling the extension amount of the driving cylinder.
7. The high-precision metal wire bending device according to claim 1, characterized in that: The precise correction mechanism comprises a backlight plate and a light source. The backlight plate is arranged at the rear side of the output path of the metal wire, and the light source is arranged at the front side of the output path of the metal wire.