A wire free bending forming equipment

Abstract

The present invention discloses a wire material free bending forming device, comprising a base and a forming panel arranged thereon; a wire feeding mechanism, a wire transfer mechanism and a straightening mechanism are arranged on one side of the forming panel; a mandrel and a linear motion slide are arranged on the other side of the forming panel, and the linear motion slide is arranged around the mandrel; a double rotating worktable is arranged on the linear motion slide, and a free bending die is arranged on the double rotating worktable, and the double rotating worktable can drive the free bending die to rotate to a specified position. Compared with the existing linear material bending forming equipment, the present invention has the advantages of simplified structure, low production cost, high material forming quality and production efficiency.

Description

Technical Field

[0001] The invention belongs to the field of wire forming and relates to a wire free bending forming device. Background Art

[0002] Wire parts are large in quantity and wide in scope. In addition to common tension, compression and torsion springs, there are also various special-shaped springs and some wire decorations such as hangers, hooks for daily necessities, etc. They are widely used in aerospace, automobile transportation, industrial automation, ships, daily life and other fields. Some usage scenarios have very high requirements for the production quality of parts, and their production efficiency has a great impact on the cost of the enterprise.

[0003] At present, the commonly used production equipment on the market are spring coiling machines, universal spring machines and wire forming machines. Among them, the main production equipment for special-shaped wire parts is universal spring machines and wire forming machines. The forming process is that the tool collides with the steel wire and then pushes and bends it to make it bend and deform, and then cooperates with the wire feeding and wire transfer mechanisms to complete various shapes, mainly including various angles and spirals. Among them, when the tool collides with the steel wire, it is easy to cause pit defects on the surface of the steel wire, and different forming features require different tools to match. The universal spring machine is equipped with eight slides to provide different tools and switch them according to needs, but the eight slides require eight servo motors to control or one servo motor drives a set of gear transmissions, which makes the entire system have too many servo axes, complex structure, and high cost.

[0004] In summary, the existing technology obviously has inconveniences and shortcomings in practical use, and it is necessary to improve it. Summary of the invention

[0005] The invention discloses a wire free bending forming device, the main purpose of which is to solve the problems of redundant number of servo axes, complex structure and high cost of current production equipment.

[0006] The main purpose of the present invention can be achieved through the following technical solutions:

[0007] A wire free bending forming device comprises a base and a forming panel arranged thereon; a wire feeding mechanism, a wire transfer mechanism and a straightening mechanism are arranged on one side of the forming panel; a core shaft and a linear motion slide are arranged on the other side of the forming panel, and the linear motion slide is arranged around the core shaft; a double rotating worktable is arranged on the linear motion slide, and a free bending mold is arranged on the double rotating worktable, and the double rotating worktable can drive the free bending mold to rotate to a specified position.

[0008] Furthermore, the double rotary worktable includes a first driving mechanism and a second driving mechanism, the first driving mechanism is fixed on a linear motion slide, the second driving mechanism is vertically arranged to the first driving mechanism and connected through a connecting seat, the first driving mechanism can rotate in a plane formed by an X-axis and a Y-axis, the second driving mechanism can rotate in a plane formed by a Y-axis and a Z-axis, the X-axis is the axial direction of the second driving mechanism, the Y-axis is the direction in which the core shaft delivers the wire, the Z-axis is the axial direction of the first driving mechanism, and the X, Y, and Z axes constitute a right-handed spiral rectangular coordinate system.

[0009] Furthermore, a first transmission mechanism is provided at an output end of the first driving mechanism, a second transmission mechanism is provided at an output end of the second driving mechanism, and a free bending mold is fixedly connected to an end of the second transmission mechanism.

[0010] Furthermore, the connecting seat includes a connecting seat one and a connecting seat two, one side end of the connecting seat is fixedly connected to the linear motion slide, and its upper end is fixedly connected to the first transmission mechanism, the bottom of the connecting seat two is fixedly connected to the top of the first transmission mechanism, and its side end is fixedly connected to the second transmission mechanism.

[0011] Furthermore, the free bending mold includes a bottom plate and a bending plate arranged thereon, the bottom plate is fixedly connected to the second transmission mechanism, and support plates are arranged on both sides of the bending plate.

[0012] Furthermore, a bending hole is provided on the upper portion of the bending plate, and chamfers are provided at both ends of the bending hole. The chamfers are used to avoid wires during the production process to avoid crushing and ensure the surface quality.

[0013] Furthermore, the bending plate is also provided with an oblique opening, and the oblique opening intersects with the bending hole to form a gap, and the gap is smaller than the diameter of the bending hole.

[0014] Furthermore, the free bending mold is made of a high-strength and high-hardness material.

[0015] Furthermore, the fixed connection method is screw connection.

[0016] Furthermore, the first driving mechanism and the second driving mechanism are servo motors.

[0017] Compared with the prior art, the present invention has the following advantages: the present invention provides a wire forming device, which can avoid the collision between the tool and the wire surface when forming wire parts, and improve the surface quality of the wire forming. At the same time, compared with the eight-claw universal spring machine used in the original forming method, it achieves better forming quality with fewer servo axes and simpler structure, reduces the equipment cost of wire part manufacturing, and improves the forming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0019] Attached Figure 2 This is a schematic diagram of the front structure of a formed panel in a preferred embodiment of the present invention;

[0020] Attached Figure 3 This is a schematic diagram of the structure of the double rotating worktable in a preferred embodiment of the present invention.

[0021] Attached Figure 4 1 is a schematic diagram of the front structure of the free bending mold in a preferred embodiment of the present invention;

[0022] Attached Figure 5 It is a schematic diagram of the oblique structure of the free bending die in a preferred embodiment of the present invention;

[0023] Attached Figure 6 Schematic diagram of the spiral forming effect of the wire in a preferred embodiment of the present invention;

[0024] Attached Figure 7 Schematic diagram of the wire angle forming effect in a preferred embodiment of the present invention;

[0025] The present invention can be clearly understood by referring to the following reference numerals.

[0026] Among them: 1. straightening mechanism; 2. wire turning mechanism; 3. wire feeding mechanism; 4. linear motion slide; 5. double rotary worktable; 501. first driving mechanism; 5011. first transmission mechanism; 502. second driving mechanism; 5021. second transmission mechanism; 503. connecting seat; 5031. connecting seat one; 5032. connecting seat two; 6. free bending mold; 601. bottom plate; 602. bending plate; 603. supporting plate; 604. bending hole; 605. chamfer; 606. bevel; 607. gap; 7. base; 8. forming panel; 9. mandrel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In addition, in the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] A wire free bending forming device according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-2 As shown, the present invention provides a wire free bending forming device, including a base 7 and a forming panel 8 arranged thereon; a wire feeding mechanism 3, a wire turning mechanism 2 and a straightening mechanism 1 are arranged on one side of the forming panel 8; the straightening mechanism 1 and the wire feeding mechanism 3 include a straightening function and a wire feeding function, the wire passes through the straightening mechanism 1 and reaches the wire feeding mechanism 3 after being straightened, and the wire feeding motor drives the wire feeding roller to push the wire along the guide groove into the core shaft 9; the wire turning mechanism 2 includes a large gear and a corresponding driving servo motor and a small gear that drive the entire straightening mechanism 1 and the wire feeding mechanism 3 to rotate, so that the wire can rotate around the core shaft 9 at any angle; the A core shaft 9 and a linear motion slide 4 are arranged on the other side of the forming panel 8. The core shaft 9 is driven to rotate by a servo motor to cooperate with the wire forming and avoid interference between the wire and the core shaft 9; the linear motion slide 4 is arranged around the core shaft 9, and the linear motion slide 4 refers to a servo linear motion mechanism that moves along the radial direction of the wire on the front panel, on which various tools and molds can be installed, and it moves linearly in the direction of the steel wire; it is characterized in that a double rotating worktable 5 is arranged on the linear motion slide 4, and a free bending mold 6 is arranged on the double rotating worktable 5, and the double rotating worktable 5 can drive the free bending mold 6 to rotate to a specified position.

[0031] In this embodiment, a cutting mechanism may also be installed on the linear motion slide 4, and the cutting mechanism is used to cut the wire after the wire bending forming is completed.

[0032] like Figure 3 As shown, the double-rotation bending mechanism 5 is a bidirectional rotation mechanism composed of two driving mechanisms that can rotate the bending die around two axes, and can rotate the bending die around two axes to a specified angle. The mechanism is installed on a linear motion slide 4 just below the core shaft 9, so that it can move linearly up and down as a whole.

[0033] Preferably, the double rotary worktable 5 includes a first driving mechanism 501 and a second driving mechanism 502, the first driving mechanism 501 is fixed on the linear motion slide 4, the second driving mechanism 502 is vertically arranged to the first driving mechanism 501, and is connected through a connecting seat 503, the first driving mechanism 501 can rotate in a plane formed by an X-axis and a Y-axis, the second driving mechanism 502 can rotate in a plane formed by a Y-axis and a Z-axis, the X-axis is the axial direction of the second driving mechanism 502, the Y-axis is the direction in which the core shaft 9 sends out the wire, the Z-axis is the axial direction of the first driving mechanism 501, and the X, Y, and Z axes constitute a right-handed spiral rectangular coordinate system.

[0034] The output end of the first driving mechanism 501 is provided with a first transmission mechanism 5011, the output end of the second driving mechanism 502 is provided with a second transmission mechanism 5021, and the end of the second transmission mechanism 5021 is fixedly connected to the free bending mold 6. The connecting seat 503 includes a connecting seat 1 5031 and a connecting seat 2 5032, the side end of the connecting seat 1 5031 is fixedly connected to the linear motion slide 4, and the upper end thereof is fixedly connected to the first transmission mechanism 5011, the bottom of the connecting seat 2 5032 is fixedly connected to the top of the first transmission mechanism 5011, and the side end thereof is fixedly connected to the second transmission mechanism 5021.

[0035] Preferably, in this embodiment, the first driving mechanism 501 and the second driving mechanism 502 are servo motors.

[0036] like Figure 4-5 As shown, the free bending mold 6 includes a base plate 601 and a bending plate 602 arranged thereon, the base plate 601 is fixedly connected to the second transmission mechanism 5021, and support plates 603 are arranged on both sides of the bending plate 602, and the support plates 603 are used to share the pressure on the bending plate 602 during wire bending production.

[0037] Furthermore, a bending hole 604 is provided on the upper portion of the bending plate 602, and chamfers 605 are provided at both ends of the bending hole 604. The chamfers 605 are used to avoid wires during the production process to avoid crushing and ensure the surface quality.

[0038] The bending plate 602 is also provided with an oblique opening 606, which intersects with the bending hole 604 to form a gap 607. The gap 607 is smaller than the diameter of the bending hole 604. The oblique opening 606 can be used to form a spiral shape with a small pitch to prevent interference from the bending block.

[0039] The free bending die 6 is made of a high-strength and high-hardness material. In this embodiment, the material is tool steel or die steel.

[0040] In this embodiment, during production, the wire is straightened by the straightening mechanism 1, and then enters the wire feeding mechanism 3 through the wire transfer mechanism 2. The large gear in the wire transfer mechanism 2 and its corresponding driving servo motor and small gear can drive the straightening mechanism 1 and the wire feeding mechanism 3 to rotate around the core shaft 9 at any angle, so as to make the wire rotate around the center of the core shaft 9 to achieve a complex forming shape. The wire passes through the groove on the wire feeding wheel in the wire feeding mechanism 3, and passes through the forming panel 8 and enters the core shaft 9 under the push of the wire feeding mechanism 3. The threading work is completed, and the double rotary worktable 5 is controlled to rise and fall by the linear motion slide 4, and the first driving machine is used to drive the wire to rotate around the core shaft 9. The first driving mechanism 501 and the second driving mechanism 502 cooperate and rotate to adjust the bending hole 604 on the free bending die 6 to align with the wire, and the wire feeding mechanism 3 is controlled to make the wire pass through the bending hole 604. Then, the free bending die 6 can be controlled to move left and right by the first driving mechanism 501, and the free bending die 6 can be controlled to move up and down by the second driving mechanism 502 to obtain the required production angle. The wire is bent after passing through the bending hole 604. Through the coordinated movement of various mechanisms, after reaching the required production length, the wire is cut off by the cutting mechanism set on the other linear motion slide 4 to complete the production of one part.

[0041] Due to the chamfer 605 design on the bending hole 604, during the rotation process, the hole edge can be prevented from squeezing the wire surface, thereby obtaining a good forming effect. At the same time, due to the coordinated rotation of the first driving mechanism 501 and the second driving mechanism 502, any production angle can be obtained, thereby realizing free bending of the wire.

[0042] The above specific embodiments further explain the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wire free bending forming device, comprising a base (7) and a forming panel (8) arranged thereon; a wire feeding mechanism (3), a wire transfer mechanism (2) and a straightening mechanism (1) are arranged on one side of the forming panel (8); a core shaft (9) and a linear motion slide (4) are arranged on the other side of the forming panel (8), and the linear motion slide (4) is arranged around the core shaft (9); characterized in that: A double rotating worktable (5) is arranged on the linear motion slide (4), and a free bending die (6) is arranged on the double rotating worktable (5), and the double rotating worktable (5) can drive the free bending die (6) to rotate to a specified position; the free bending die (6) comprises a bottom plate (601) and a bending plate (602) arranged thereon, the bottom plate (601) is fixedly connected to the second transmission mechanism (5021), and support plates (603) are arranged on both sides of the bending plate (602); a bending hole (604) is arranged on the upper part of the bending plate (602), and the bending hole (604) is formed on the bending plate (602), and chamfers (605) are arranged at both ends of the bending hole (604); The plate (602) is also provided with an oblique opening (606), wherein the oblique opening (606) intersects with the bending hole (604) to form a slit (607), wherein the slit (607) is smaller than the diameter of the bending hole (604); the double rotary worktable (5) comprises a first driving mechanism (501) and a second driving mechanism (502), wherein the first driving mechanism (501) is fixed on the linear motion slide (4), and the second driving mechanism (502) is vertically arranged with the first driving mechanism (501) and connected via a connecting seat (503), wherein the first driving mechanism (501) can rotate within a plane formed by an X-axis and a Y-axis, and the second driving mechanism (502) can rotate within a plane formed by a Y-axis and a Z-axis.

2. A wire free bending forming device as claimed in claim 1, characterized in that: The output end of the first driving mechanism (501) is provided with a first transmission mechanism (5011), the output end of the second driving mechanism (502) is provided with a second transmission mechanism (5021), and the end of the second transmission mechanism (5021) is fixedly connected to a free bending mold (6); the connecting seat (503) comprises a connecting seat 1 (5031) and a connecting seat 2 (5032), the side end of the connecting seat 1 (5031) is fixedly connected to the linear motion slide (4), and the upper end thereof is fixedly connected to the first transmission mechanism (5011), the bottom of the connecting seat 2 (5032) is fixedly connected to the top of the first transmission mechanism (5011), and the side end thereof is fixedly connected to the second transmission mechanism (5021).

3. A wire free bending forming device as claimed in claim 1, characterized in that: The free bending die (6) is made of a high-strength and high-hardness material.

4. A wire free bending forming device as claimed in claim 2, characterized in that: The fixed connection method is screw connection.

5. The wire free bending forming equipment according to claim 1, characterized in that: The first driving mechanism (501) and the second driving mechanism (502) are servo motors.

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