Precise angle bending mechanism for steel wire

Abstract

The utility model discloses a steel wire precise angle bending mechanism which comprises an automatic roller assembly used for extruding and straightening a steel wire, a precise feeding assembly, a wire penetrating positioning table and an automatic bending assembly, the wire penetrating positioning table is arranged on a workbench, and a wire penetrating hole is horizontally formed in the position, right opposite to a discharging conical head, of the wire penetrating positioning table; the automatic bending assembly comprises a bending table, a plane bending pin, a different-face bending pin, a rotating sleeve, a jacking assembly and a rotating assembly, the plane bending pin is cylindrical and conducts in-plane rotating bending on a steel wire, the different-face bending pin comprises a cylindrical section and an inclined section, the inclination angle of the inclined section is set according to the to-be-bent angle of the steel wire, and the rotating sleeve is sleeved with the jacking assembly. According to the mechanism, the plane bending pin and the different-plane bending pin arranged on the bending table are used for achieving bending operation on a steel wire in the horizontal plane and the different plane respectively, free-angle bending of the steel wire in the space is achieved, the reasonable bending structure is used, the equipment cost can be saved, the equipment additional value can be improved, and the production benefit can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a steel wire precision angle bending mechanism. Background Art

[0002] Existing wire bending machines usually use a feed roller mechanism to straighten the coiled wire and feed it to an automatic bending mechanism to complete bending operations at various angles. The most common automatic bending mechanism is to bend the wire at various angles within a plane, but it is difficult to achieve bending outside the plane or in a plane intersecting the plane. Later, a method of adding a rotating axis was derived to drive the wire to rotate at any angle, so that the bending of the wire can be achieved in space. Free bending operations, but the addition of the rotating axis also increases the cost of the bending machine too much, greatly increases the equipment cost, and the benefits of bending the wire are limited. It is not appropriate to increase the equipment cost too much. Therefore, it is necessary for us to use a reasonable bending structure to save equipment costs and reduce the installation of rotating axis robotic arms to achieve free bending of the wire in space, or precise bending of specified angles, so as to enhance the added value of the equipment and improve production efficiency. Utility Model Content

[0003] The purpose of the utility model is to utilize a reasonable bending structure to achieve free bending of the steel wire in space, or precise bending of a specified angle while saving equipment costs and reducing the installation of a rotating shaft robot arm, so as to enhance the added value of the equipment and meet the technical requirements of improving production efficiency. We have designed and provided a steel wire precision angle bending mechanism.

[0004] The technical solutions adopted to solve the above problems are:

[0005] A steel wire precision angle bending mechanism, comprising an automatic roller assembly for extruding and straightening steel wire, a precise feeding assembly, a wire threading positioning platform and an automatic bending assembly,

[0006] The automatic roller assembly uses multiple groups of rollers and transmission components that are tangentially aligned and twist the steel wire to stably feed the front end of the steel wire to the precise feeding assembly.

[0007] The precise feeding assembly comprises a threading sleeve and a discharge cone head. The inner hole of the threading sleeve is larger than the diameter of the steel wire. The steel wire and the inner hole of the discharge cone head arranged at the front end of the threading sleeve are threaded through the sleeve and then precisely discharged.

[0008] The wire threading positioning platform is arranged on the workbench, is cylindrical, and has a wire threading hole horizontally opened opposite to the discharge cone head. The wire threading hole is matched with the steel wire transition to ensure that the steel wire obtains a precise positioning posture at the bending position, and the automatic bending component implements free angle bending on the steel wire.

[0009] The automatic bending assembly includes a bending table, a plane bending pin, a skew bending pin, a rotating sleeve, a lifting assembly and a rotating assembly. The bending table is sleeved with the shaft hole of the wire threading and positioning table. An avoidance step is provided on one side of the upper end of the bending table, and a plurality of bending positioning holes are provided on the other side. A plane bending pin and / or a skew bending pin are screwed in the bending positioning holes. A rotating sleeve is provided at the lower end of the bending table, and a pulley is provided on the outer periphery of the rotating sleeve. The pulley is driven by the rotating assembly to rotate at a precise angle. A lifting assembly is provided below the rotating sleeve, and the lifting assembly drives the bending table to precisely rise and fall.

[0010] Furthermore, the plane bending pin is cylindrical and performs in-plane rotational bending on the steel wire.

[0011] Furthermore, the eccentric bending pin comprises a cylindrical section and an inclined section, and the inclination angle of the inclined section is set according to the bending angle of the steel wire.

[0012] Furthermore, an avoidance groove is arranged on the outer side of the eccentric bending pin so as to provide avoidance space for the steel wire to bend downward.

[0013] Furthermore, the lifting assembly adopts an electric push rod to drive the bending table to move up and down with precise displacement.

[0014] Furthermore, the bending positioning holes are arranged at different positions from the axis according to different bending angles of the steel wire, and the spacing between adjacent bending positioning holes is uniform and larger than the diameter of the steel wire, so that the steel wire can pass through the gap and be rotated and bent by the bending table.

[0015] Furthermore, the inner hole of the discharge cone head is slightly larger than the diameter of the steel wire, and the precisely straightened steel wire is fed to the wire threading positioning platform.

[0016] Furthermore, the steel wire is pushed by the inclined section and cooperates with the rotating component and the lifting component to bend the steel wire according to the set angle.

[0017] The beneficial effects of the utility model are:

[0018] The steel wire precision angle bending mechanism utilizes the flat bending pins and eccentric bending pins provided on the bending table to realize the bending operations on the steel wire in the horizontal plane and eccentric plane respectively, and realizes the free angle bending of the steel wire in space. The steel wire is pushed by the inclined section, and cooperates with the rotating component and the lifting component to bend the steel wire according to the set angle. The use of a reasonable bending structure can save equipment costs, increase equipment added value, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the steel wire precision angle bending mechanism of the embodiment;

[0020] Figure 2 for Figure 1 Sectional view of section AA;

[0021] Figure 3 It is a top view schematic diagram of the wire threading positioning platform and the bending platform described in the embodiment;

[0022] Among them, 1-steel wire, 2-roller, 3-automatic roller assembly, 4-wire threading sleeve, 5-discharging cone head, 6-flat bending pin, 7-bending table, 8-rotating sleeve, 9-lifting assembly, 10-driving pulley, 11-rotating assembly, 12-wire threading positioning table, 13-small radius eccentric bending pin, 14-wire threading hole, 15-large radius eccentric bending pin, 16-avoidance step, 17-avoidance groove. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be described clearly and completely in the following in conjunction with the accompanying drawings in the form of embodiments.

[0024] See also Figures 1 to 3 The present embodiment proposes a precise angle bending mechanism for a steel wire 1, comprising an automatic roller assembly 3 for extruding and straightening the steel wire 1, a precise feeding assembly, a wire threading positioning platform 12 and an automatic bending assembly. The automatic roller assembly 3 utilizes multiple groups of rollers and transmission assemblies that are tangentially aligned and twist the steel wire 1 for stable feeding, so as to stably feed the front end of the steel wire 1 to the precise feeding assembly. The precise feeding assembly comprises a wire threading sleeve 4 and a discharge cone head 5. The inner hole of the wire threading sleeve 4 is larger than the diameter of the steel wire 1. The steel wire 1 and the inner hole of the discharge cone head 5 set at the front end of the wire threading sleeve 4 are inserted into the sleeve and then accurately come out.

[0025] See also Figure 1 and Figure 3 The wire threading positioning platform 12 is arranged on the workbench, is cylindrical, and has a wire threading hole 14 horizontally opened opposite to the discharge cone head 5. The wire threading hole 14 is transitionally matched with the steel wire 1 to ensure that the steel wire 1 obtains a precise positioning posture at the bending position, and the automatic bending component performs free angle bending on the steel wire 1.

[0026] See also Figure 2And the villain 3, the automatic bending assembly includes a bending table 7, a plane bending pin 6, a convex bending pin, a rotating sleeve 8, a lifting assembly and a rotating assembly 11, the bending table 7 is sleeved with the shaft hole of the wire threading positioning table 12, an avoidance step 16 is arranged on one side of the upper end of the bending table 7, and a plurality of bending positioning holes are arranged on the other side, and the plane bending pin 6 and / or the convex bending pin are screwed in the bending positioning hole, a rotating sleeve 8 is arranged at the lower end of the bending table 7, a pulley is arranged on the outer periphery of the rotating sleeve 8, and the pulley is driven by the rotating assembly 11 to realize precise angle rotation, and a lifting assembly is arranged below the rotating sleeve 8, and the lifting assembly drives the bending table 7 to precisely rise and fall.

[0027] See also Figure 2 and Figure 3 The plane bending pin 6 is cylindrical and performs in-plane rotation bending on the steel wire 1. The eccentric bending pin includes a cylindrical section and an inclined section. The inclination angle of the inclined section is set according to the bending angle of the steel wire 1.

[0028] See also Figure 3 An avoidance groove 17 is provided on the outer side of the eccentric bending pin so that there is avoidance space for the steel wire 1 to bend downward.

[0029] A further implementation scheme is that the lifting assembly 9 uses an electric push rod to drive the bending table 7 to move up and down with precise displacement.

[0030] See also Figure 3 The bending positioning holes are arranged at different positions from the axis according to the different bending angles of the steel wire 1, for example Figure 3 The small radius eccentric bending pins 13 and the large radius eccentric bending pins 15 have even spacings between adjacent bending positioning holes, which are larger than the diameter of the steel wire 1 , so that the steel wire 1 can pass through the gaps and be rotated and bent by the bending table 7 .

[0031] A further implementation scheme is that the inner hole of the discharge cone head 5 is slightly larger than the diameter of the steel wire 1 , and the precisely straightened steel wire 1 is fed to the wire threading positioning platform 12 .

[0032] A further implementation scheme is that the steel wire 1 is pushed by the inclined section, and cooperates with the rotating assembly 11 and the lifting assembly to bend the steel wire 1 according to the set angle. For example, if the inclined section is 90 degrees, the lifting assembly pushes and lifts, and the rotating assembly does not move, so that the 90-degree angle of the different planes can be bent; if the inclined section is 45 degrees, the lifting assembly and the rotating assembly act synchronously, and the bending force is synthesized to the normal direction perpendicular to the inclined section, so that the steel wire can be bent at the desired angle, with controllable accuracy, practicality and convenience.

[0033] The above describes in detail the implementation modes of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel wire precision angle bending mechanism, comprising an automatic roller assembly for extruding and straightening steel wire, a precision feeding assembly, a wire threading positioning platform and an automatic bending assembly, characterized in that: The automatic roller assembly uses multiple groups of rollers and transmission components that are tangentially aligned and twist the steel wire to stably feed the front end of the steel wire to the precise feeding assembly. The precise feeding assembly comprises a threading sleeve and a discharge cone head. The inner hole of the threading sleeve is larger than the diameter of the steel wire. The steel wire and the inner hole of the discharge cone head arranged at the front end of the threading sleeve are threaded through the sleeve and then precisely discharged. The wire threading positioning platform is arranged on the workbench, is cylindrical, and has a wire threading hole horizontally opened opposite to the discharge cone head. The wire threading hole is matched with the steel wire transition to ensure that the steel wire obtains a precise positioning posture at the bending position, and the automatic bending component implements free angle bending on the steel wire. The automatic bending assembly includes a bending table, a plane bending pin, a skew bending pin, a rotating sleeve, a lifting assembly and a rotating assembly. The bending table is sleeved with the shaft hole of the wire threading and positioning table. An avoidance step is provided on one side of the upper end of the bending table, and a plurality of bending positioning holes are provided on the other side. A plane bending pin and / or a skew bending pin are screwed in the bending positioning holes. A rotating sleeve is provided at the lower end of the bending table, and a pulley is provided on the outer periphery of the rotating sleeve. The pulley is driven by the rotating assembly to rotate at a precise angle. A lifting assembly is provided below the rotating sleeve, and the lifting assembly drives the bending table to precisely rise and fall.

2. The steel wire precision angle bending mechanism according to claim 1, characterized in that: The plane bending pin is cylindrical and performs in-plane rotation bending on the steel wire.

3. The steel wire precision angle bending mechanism according to claim 1, characterized in that: The eccentric bending pin comprises a cylindrical section and an inclined section, and the inclination angle of the inclined section is set according to the bending angle of the steel wire.

4. The steel wire precision angle bending mechanism according to claim 1, characterized in that: An avoidance groove is arranged on the outer side of the eccentric bending pin.

5. The steel wire precision angle bending mechanism according to claim 1, characterized in that: The jacking assembly adopts an electric push rod to drive the bending table to move up and down with precise displacement.

6. The steel wire precision angle bending mechanism according to claim 1, characterized in that: The bending positioning holes are arranged at different positions from the axis according to different bending angles of the steel wire, and the spacing between adjacent bending positioning holes is uniform and larger than the diameter of the steel wire.

7. The steel wire precision angle bending mechanism according to claim 1, characterized in that: The inner hole of the discharge cone head is slightly larger than the diameter of the steel wire, and the precisely straightened steel wire is fed to the wire threading positioning platform.

8. The steel wire precision angle bending mechanism according to claim 3, characterized in that: The steel wire is pushed by the inclined section and cooperates with the rotating component and the lifting component to bend the steel wire according to the set angle.

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