Automatic wire shaping device

Abstract

The present invention discloses an automatic wire arrangement and shaping device, comprising: a pre-bending and cutting assembly, the pre-bending and cutting assembly is provided with a pre-bending wheel for pre-bending alloy wire and an automatic cutting unit for cutting the pre-bent alloy wire; an automatic shaping assembly, the automatic shaping assembly is provided with a curved surface tooling for automatically adjusting the orientation of the cut alloy wire and a fixing unit for fixing the adjusted alloy wire; a transfer assembly, the transfer assembly is provided with a clamping claw for grabbing the cut alloy wire and putting it into the curved surface tooling and a motion module for moving the clamping claw. The above automatic wire arrangement and shaping device realizes the automatic wire arrangement and shaping of alloy wire brushes.

Description

Technical Field

[0001] The invention relates to the technical field of brush wire arrangement and shaping, and in particular to an automatic wire arrangement and shaping device. Background Art

[0002] Alloy wire brushes have the characteristics of many contact points, no need for lubrication on the contact surface, long life, low contact pressure, low contact wear rate, small dynamic contact resistance, very little debris, and a wide operating temperature range. They are widely used in many fields such as civil and military.

[0003] Alloy wire brushes are difficult to process, especially in the wire arrangement process. How to arrange multiple alloy wires neatly and tightly together and bend each alloy wire in one direction directly affects the elastic parameters and stability of the final brush. At present, for the alloy wire brush forming process with high quality requirements, manual wire arrangement and shaping is usually required. First, multiple alloy wires are welded together side by side, and then the problematic alloy wires such as inconsistent directions, excessive bending, and misalignment are observed with the naked eye. Then, the welding scar is heated with a welding torch to adjust the problematic alloy wire to a qualified state. This method has a large workload, and the quality is difficult to guarantee, and the scrap rate is high.

[0004] Therefore, how to provide an automatic wire arrangement and shaping device that solves the above-mentioned technical problems is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic wire arrangement and shaping device, which realizes the automatic wire arrangement and shaping of alloy wire brush pieces.

[0006] To achieve the above object, the present invention provides an automatic wire arrangement and shaping device, comprising:

[0007] A pre-bending and cutting assembly, wherein the pre-bending and cutting assembly is provided with a pre-bending wheel for pre-bending the alloy wire and an automatic cutting unit for cutting the pre-bent alloy wire;

[0008] An automatic shaping component, wherein the automatic shaping component is provided with a curved surface tooling for automatically adjusting the orientation of the cut alloy wire and a fixing unit for fixing the adjusted alloy wire;

[0009] A transfer assembly is provided with a clamping claw for grabbing the cut alloy wire and placing it into the arc surface tooling, and a motion module for moving the clamping claw.

[0010] Preferably, the pre-bending and cutting assembly is further provided with a guide unit located between the pre-bending wheel and the automatic cutting unit, and the guide unit is used to guide the pre-bent alloy wire into the automatic cutting unit.

[0011] Preferably, the guide unit comprises a guide member adjacent to one side of the pre-bending wheel disc and a feed wheel adjacent to one side of the automatic cutting unit, and an auxiliary wheel driven by a cutting cylinder is provided on the upper side of the feed wheel.

[0012] Preferably, the automatic cutting unit comprises a first scissors body and a second scissors body having a cutting edge therebetween for cutting the alloy wire, and the first scissors body is driven by a cutting cylinder.

[0013] Preferably, the fixing unit comprises an alignment unit located at two ends of the arc surface tooling and used for aligning the alloy wire in the length direction.

[0014] Preferably, the fixing unit further comprises a limiting unit and a pushing block unit respectively located on both sides of the arc surface tooling and used to tighten the alloy wire in the width direction.

[0015] Preferably, the push block unit comprises a push block and a moving module on which the push block is mounted and drives the push block to move.

[0016] Preferably, a pressing block for pressing the alloy wire downward is provided on the lower side of the motion module.

[0017] Preferably, a hollowed-out observation window is provided in the middle of the pressing block.

[0018] Preferably, the fixing unit further comprises a tightening unit for fixing the curved surface tooling.

[0019] Compared with the above background technology, the automatic wire arrangement and shaping device provided by the present invention includes a pre-bending and cutting component, an automatic shaping component and a transfer component. Among them, the pre-bending and cutting component is provided with a pre-bending wheel and an automatic cutting unit, the pre-bending wheel is used to pre-bend the alloy wire, and the automatic cutting unit is used to cut the pre-bent alloy wire; the automatic shaping component is provided with a curved surface tooling and a fixing unit, the curved surface tooling is used to automatically adjust the orientation of the cut alloy wire, and the fixing unit is used to fix the adjusted alloy wire; the transfer component is provided with a clamp and a motion module, the clamp is used to grab the cut alloy wire and put it into the curved surface tooling, and the motion module is used to move the clamp.

[0020] The above-mentioned automatic wire arrangement and shaping device realizes the automatic arrangement and shaping of alloy wire brushes, and is suitable for occasions where multiple alloy wires are processed into wire arrangement brushes. Compared with the existing conventional manual wire arrangement and shaping process method, the device allows the alloy wire to pass around a pre-bent wheel before cutting the wire, and after cutting the wire, the alloy wire is placed on the curved surface tooling through the transfer component. A sufficient number of alloy wires form alloy wire segments. The bent alloy wire segments automatically adjust their own positions on the curved surface tooling due to gravity. After adjustment, the alloy wire segments are fixed for subsequent tinning operations, thereby realizing the automation of the wire arrangement and shaping process of the alloy wire brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of an automatic wire arrangement and shaping device provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a pre-bending cutting assembly provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of an automatic cutting unit provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the position of a transfer assembly provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a curved surface tooling provided by an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of an automatic shaping component provided by an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the operation of the automatic shaping component provided by an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the tinning area provided in an embodiment of the present invention.

[0030] in:

[0031] 1-workbench, 2-transfer assembly, 3-pre-bending and cutting assembly, 4-automatic shaping assembly, 20-motion module, 30-pre-bending wheel, 31-guide, 32-feed wheel, 33-auxiliary wheel, 34-automatic cutting unit, 35-clamping cylinder, 40-arc surface tooling, 41-alignment unit, 42-limiting unit, 43-tightening unit, 44-moving module, 45-push block, 201-clamp, 202-pressing block, 301-alloy wire, 341-cutting cylinder, 342-first scissors body, 343-second scissors body, 2021-observation window, 3010-alloy wire segment, 3011-tinning area. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Please refer to Figures 1 to 8 ,in, Figure 1 A schematic diagram of the structure of an automatic wire arrangement and shaping device provided in an embodiment of the present invention, Figure 2 A schematic diagram of the structure of a pre-bending cutting assembly provided in an embodiment of the present invention, Figure 3 A schematic diagram of the structure of an automatic cutting unit provided in an embodiment of the present invention, Figure 4 A schematic diagram of the position of a transfer assembly provided in an embodiment of the present invention, Figure 5 A schematic diagram of the structure of the curved surface tooling provided by an embodiment of the present invention, Figure 6 A schematic diagram of the structure of an automatic shaping component provided by an embodiment of the present invention, Figure 7 The following is a schematic diagram of the operation of the automatic shaping component provided by an embodiment of the present invention. Figure 8 A schematic diagram of the tinning area provided in an embodiment of the present invention.

[0035] In a first specific embodiment, the automatic wire arrangement and shaping device provided by the present invention includes a pre-bending and cutting component 3, an automatic shaping component 4 and a transfer component 2.

[0036] Among them, the pre-bending and cutting component 3 is provided with a pre-bending wheel 30 and an automatic cutting unit 34. The pre-bending wheel 30 can be a rotating wheel driven by a motor, and the circumferential surface of the pre-bending wheel 30 is used to pre-bend the alloy wire 301; the automatic cutting unit 34 can be a pair of scissors driven by a cylinder, and the pre-bent alloy wire 301 is cut by the blade of the automatic cutting unit 34, and the cutting length can be set.

[0037] The automatic shaping component 4 is provided with an arc surface tooling 40 and a fixing unit. The arc surface in the arc surface tooling 40 refers to the part where the tooling structure contacts the cut alloy wire 301. The middle part of the tooling structure is hollowed out, and the alloy wire 301 which has its own curvature is placed on the arc surface of the arc surface tooling 40. The two ends of the alloy wire 301 contact the two arc surfaces respectively. Under the action of the center of gravity, the alloy wire 301 automatically adjusts its orientation so that the center of gravity of the alloy wire 301 moves downward, and the arc part of the alloy wire 301 is located below the two ends of the alloy wire 301, without the need for subsequent manual adjustment; the fixing unit can be a tooling structure used to limit the freedom of the alloy wire 301, and the adjusted alloy wire 301 is fixed by the fixing unit.

[0038] The transfer component 2 is provided with a clamp 201 and a motion module 20. The clamp 201 can be a grasping structure on a robot. The alloy wire 301 is grasped and put down by the clamp 201, so that the cut alloy wire 301 is grasped and placed in the curved surface tooling 40; the motion module 20 can adopt a robot to realize both the movement of the clamp 201 and the grasping control of the clamp 201.

[0039] During the operation of the automatic wire arrangement and shaping device, the device allows the alloy wire 301 to pass around a pre-bent wheel 30 before wire cutting. After wire cutting, the alloy wire 301 is placed on the curved surface tooling 40 through the transfer component 2. This process is repeated, and a sufficient number of alloy wires 301 form an alloy wire segment 3010. The alloy wire segment 3010 also has the characteristic of bending. The bent alloy wire segment 3010 automatically adjusts its own position on the curved surface tooling 40 due to the action of gravity. After adjustment, the alloy wire segment 3010 is fixed for subsequent tinning operations, thereby realizing the automation of the alloy wire brush wire arrangement and shaping process.

[0040] The above-mentioned automatic wire arrangement and shaping device realizes the automatic wire arrangement and shaping of alloy wire brush sheets, and is suitable for occasions where multiple alloy wires 301 are processed into wire arrangement brush sheets. The entire adjustment process is simple, reliable, and highly automated. Brushes are usually used on DC motors or electric slip rings, and the transmission of electrical energy or electrical signals during rotation is achieved by pressing the brushes on the rotating body. The brushes and the rotating body are in sliding friction contact, and the performance of electrical transmission and the life of the brushes will be directly affected. In occasions with higher requirements, the use of alloy wire brush sheet type brushes is a better choice; the device solves the problems of multiple manual operations, high requirements, and long time in the process of processing alloy wire 301 into brush sheets, thereby reducing the cost of alloy wire brush sheets.

[0041] Furthermore, the pre-bending and cutting assembly 3 is also provided with a guide unit located between the pre-bending wheel 30 and the automatic cutting unit 34 , and the guide unit is used to guide the pre-bent alloy wire 301 into the automatic cutting unit 34 .

[0042] In this embodiment, the guide unit plays a guiding role for the alloy wire 301. After the alloy wire 301 in the pre-bending wheel 30 is bent, it first enters the guide unit and is accurately introduced into the automatic cutting unit 34 for cutting under the guidance of the guide unit.

[0043] Furthermore, the guide unit includes a guide member 31 adjacent to one side of the pre-bending wheel disc 30 and a feed wheel 32 adjacent to one side of the automatic cutting unit 34 , and an auxiliary wheel 33 driven by a cutting cylinder 341 is provided on the upper side of the feed wheel 32 .

[0044] In this embodiment, the guide member 31 plays a preliminary guiding role for the alloy wire 301, and adjusts the alloy wire 301 in the width and length directions of the alloy wire 301, so that the alloy wire 301 reaches a certain degree of centering; the auxiliary wheel 33 and the feed wheel 32 are arranged from top to bottom, and the alloy wire 301 guided by the guide member 31 is introduced between the auxiliary wheel 33 and the feed wheel 32, and the alloy wire 301 is adjusted in the height direction of the alloy wire 301, so that the alloy wire 301 can meet the requirements of accurately introducing the automatic cutting unit 34. Among them, the alloy wire 301 is wound on the pre-bending wheel 30, and the feed wheel 32 is driven by a stepper motor. The auxiliary wheel 33 is pressed on the feed wheel 32 by the pressing cylinder 35, and the fixed-length feeding of the alloy wire 301 is realized by controlling the rotation angle of the stepper motor.

[0045] Exemplarily, the automatic cutting unit 34 includes a first scissors body 342 and a second scissors body 343 having a cutting edge therebetween for cutting the alloy wire 301 , and the first scissors body 342 is driven by a cutting cylinder 341 .

[0046] In this embodiment, the cutting principle of the automatic cutting unit 34 is the same as that of scissors. The first scissors body 342 and the second scissors body 343 are equivalent to the two parts of the scissors. The cutting cylinder 341 provides driving force to drive the first scissors body 342 to move downward until the first scissors body 342 and the second scissors body 343 achieve cutting of the alloy wire 301.

[0047] Exemplarily, in an embodiment where the transfer component 2 is a conversion robot, the transfer component 2 can move in multiple directions. Before the above-mentioned automatic cutting unit 34 works, the conversion robot needs to clamp the alloy wire 301 to be cut on one side of the cutting device. After the cutting is completed, the conversion robot transfers the alloy wire 301 to the arc tooling 40 of the automatic shaping device 4.

[0048] Furthermore, the fixing unit includes an alignment unit 41 located at both ends of the arc surface tooling 40 and used to align the alloy wire 301 in the length direction; the fixing unit also includes a limit unit 42 and a push block unit respectively located on both sides of the arc surface tooling 40 and used to tighten the alloy wire 301 in the width direction.

[0049] In this embodiment, after the alloy wire segment 3010 automatically adjusts its own position on the arc surface tooling 40, the above-mentioned alignment unit 41, the limit unit 42 and the push block unit are utilized, and then the free gap of the alloy wire segment 3010 on the arc surface tooling 40 is controlled to push the alloy wire segment 3010 into a tight row, thereby realizing the automation of the wire arrangement and shaping process of the alloy wire brush.

[0050] Exemplarily, the push block unit includes a push block 45 and a moving module 44 on which the push block 45 is mounted and drives the push block 45 to move.

[0051] On this basis, a pressing block 202 for pressing the alloy wire 301 downward is provided on the lower side of the motion module 20 .

[0052] In this embodiment, the automatic shaping component 4 has a variety of structures in addition to the curved surface tooling 40, which are combined to achieve positioning and fixation of the alloy wire 301 and the alloy wire segments 3010 composed of it.

[0053] Among them, the pressing block 202 is installed on the conversion manipulator, and the conversion manipulator moves so that the pressing block 202 is pressed just on the upper surface of the alloy wire 301, so that multiple alloy wires 301 are arranged in the same plane without cross-overlapping, allowing the alloy wires 301 to move along the curved surface tooling 40, and the alloy wires 301 are combined to form an alloy wire segment 3010. The alignment unit 41 is a mechanism for driving the positioning block by the cylinder, which is extended by the cylinder to align the two ends of the alloy wire segment 3010. The limiting unit 42 is similar in structure to the alignment unit 41, and its function is to limit the side. It is pushed out to the middle of the curved surface tooling 40 by the cylinder to provide side limit for the alloy wire segment 3010. The moving module 44 serves as a push block feeding module that drives the push block 45. Through the movement of the push block 45, the loose alloy wire segment 3010 is tightened to one side along the curved surface tooling 40.

[0054] In addition, the fixing unit also includes a tightening unit 43 for fixing the curved surface tooling 40 .

[0055] In this embodiment, the function of the tightening unit 43 is to tighten the curved surface tooling 40 . Its structure is similar to the above-mentioned limiting unit 42 and alignment unit 41 . It is pressed on the curved surface tooling 40 by a cylinder to fix the curved surface tooling 40 .

[0056] In order to achieve better technical effects, a hollowed-out observation window 2021 is provided in the middle of the pressing block 202 , through which the arrangement of the alloy wire segments 3010 can be observed.

[0057] In a specific use instruction, the transfer component 2, the pre-bending and cutting component 3 and the automatic shaping component 4 are arranged on the workbench 1. The pre-bending wheel 30 is used to make the alloy wire 301 have a certain bending curvature before cutting. After the alloy wire 301 is cut, it is placed on the arc surface tooling 40 by a robot. The alloy wire segment 3010 will automatically adjust the bending direction on the arc surface tooling 40 due to the action of gravity. The pressure block 202 is covered, and the free gap of the alloy wire segment 3010 is controlled. The push block 45 is pushed to push the alloy wire segment 3010 to a tightened state, and then tinning is applied to both ends of the tightened alloy wire segment 3010, thereby completing the automatic shaping and tinning operations of the brush.

[0058] In a specific operating instruction:

[0059] Manually pass the alloy wire 301 on the pre-bent wheel 30 through the guide 31 and over the feed wheel 32 to start the automatic wire arrangement and shaping;

[0060] The auxiliary wheel 33 presses down to clamp the alloy wire 301 between the two wheels, and the feed wheel 32 rotates to drive the alloy wire 301 to extend to a certain length;

[0061] The switching manipulator moves so that the clamping claw 201 clamps the extended alloy wire 301;

[0062] The automatic cutting unit 34 cuts the extended alloy wire 301;

[0063] The conversion manipulator transfers the cut alloy wire 301 to the curved surface tooling 40, and the alloy wire 301 with a certain curvature automatically adjusts its position on the curved surface tooling 40;

[0064] Repeat the above steps until a set number of alloy wires 301, i.e., alloy wire segments 3010, are formed on the curved surface tooling 40;

[0065] The alloy wire segment 3010 automatically presses the curved surface tooling 40 tightly to prevent the tooling from moving;

[0066] The conversion manipulator moves the pressing block 202 to the top of the curved surface tooling 40, and the program controls the distance between the pressing block 202 and the curved surface tooling 40 to be just enough for the alloy wire segment 3010 to move;

[0067] The limiting unit 42 extends to the middle of the curved surface tooling 40;

[0068] The push block 45 moves to tighten the loose alloy wire segments 3010;

[0069] The alignment units 41 at both ends extend to align the two ends of the tightened alloy wire segment 3010, and now all automatic wire arrangement and shaping actions are completed.

[0070] On this basis, tinning is performed on the exposed tinning areas 3011 at both ends of the alloy wire segment 3010 to connect multiple alloy wires 301 into one wire row. The tinning action can be performed manually or automatically. After the tinning is completed, the various unit mechanisms of the fixed unit are withdrawn and the wire row can undergo subsequent processing steps.

[0071] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0072] The automatic wire arrangement and shaping device provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic wire shaping device, characterized in that: include: A pre-bending and cutting assembly (3), wherein the pre-bending and cutting assembly (3) is provided with a pre-bending wheel (30) for pre-bending the alloy wire (301) and an automatic cutting unit (34) for cutting the pre-bent alloy wire (301); An automatic shaping component (4), the automatic shaping component (4) being provided with a curved surface tooling (40) for automatically adjusting the orientation of the cut alloy wire (301) and a fixing unit for fixing the adjusted alloy wire (301), the curved surface in the curved surface tooling (40) referring to the portion of the tooling structure in contact with the cut alloy wire (301), the middle portion of the tooling structure being hollowed out, the alloy wire (301) having a curvature itself being placed on the curved surface of the curved surface tooling (40), the two ends of the alloy wire (301) being in contact with the two curved surfaces respectively, and under the action of the center of gravity, the alloy wire (301) automatically adjusts its orientation, so that the center of gravity of the alloy wire (301) moves downward, and the curved portion of the alloy wire (301) is located below the two ends of the alloy wire (301); The fixing unit comprises an alignment unit (41) located at two ends of the arc surface tooling (40) and used to align the alloy wire (301) in the length direction; The fixing unit further comprises a limiting unit (42) and a pushing block unit respectively located on both sides of the arc surface tooling (40) and used to tighten the alloy wire (301) in the width direction; The push block unit comprises a push block (45) and a moving module (44) for mounting the push block (45) and driving the push block (45) to move; The fixing unit further comprises a tightening unit (43) for fixing the curved surface tooling (40); A transfer assembly (2), the transfer assembly (2) being provided with a clamp (201) for grabbing the cut alloy wire (301) and placing it into the curved surface tooling (40), and a motion module (20) for moving the clamp (201); A pressing block (202) for pressing the alloy wire (301) downwards is provided on the lower side of the motion module (20).

2. The automatic wire arrangement and shaping device according to claim 1, characterized in that: The pre-bending and cutting assembly (3) is further provided with a guide unit located between the pre-bending wheel (30) and the automatic cutting unit (34), the guide unit being used to guide the pre-bent alloy wire (301) into the automatic cutting unit (34).

3. The automatic wire arrangement and shaping device according to claim 2, characterized in that: The guide unit comprises a guide member (31) adjacent to one side of the pre-bending wheel disc (30) and a feed wheel (32) adjacent to one side of the automatic cutting unit (34); an auxiliary wheel (33) driven by a cutting cylinder (341) is provided on the upper side of the feed wheel (32).

4. The automatic wire arrangement and shaping device according to claim 1, characterized in that: The automatic cutting unit (34) comprises a first scissors body (342) and a second scissors body (343) having a cutting edge therebetween for cutting the alloy wire (301); the first scissors body (342) is driven by a cutting cylinder (341).

5. The automatic wire arrangement and shaping device according to claim 1, characterized in that: A hollowed-out observation window (2021) is provided in the middle of the pressing block (202).

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