Cutting wire deflection mechanism with barrier structure

Abstract

The utility model provides a kind of cutting wire steering mechanism with barrier structure, it includes steering carrier plate, steering cover plate, steering core plate, steering guide pulley, barrier core plate and barrier tooth block, the cutting wire steering mechanism is enclosed by steering core plate and steering guide pulley in cutting wire steering space and forms steering guide groove, the steering process of cutting wire is guided, ensure that cutting wire moves according to predetermined steering path, barrier core plate and steering guide pulley outer wall are enclosed and form the return guide groove that is communicated with steering guide groove, when cutting wire in steering guide groove deviates steering path, it can enter return guide groove, barrier tooth block is blocked to cutting wire entering return guide groove, avoid its continue to move along return guide groove, cutting wire end portion deviates conveying path and enters return guide groove, can be clamped between adjacent barrier tooth block, it is convenient to pull back to original position and re-conveying cutting wire, avoid cutting wire further deviates steering path and causes blockage, it is favorable to improve the stability of cutting wire conveying.

Description

Technical Field

[0001] This utility model relates to wire electrical discharge cutting equipment, and more particularly to a wire turning mechanism with a baffle structure. Background Technology

[0002] Patent document CN219324850U discloses a cutting wire steering mechanism, which includes a machine tool, a steering assembly, and a clamping plate that cooperates with the steering assembly. The steering assembly includes a rotatable guide wheel. The inner center of the clamping plate is provided with an arc-shaped steering surface that cooperates with the outer peripheral end face of the guide wheel. A steering channel for passing through the cutting wire is provided between the outer peripheral end face of the guide wheel and the steering surface. A gap is formed between the outer end face and the steering surface. The width of the gap is smaller than the diameter of the cutting wire. After the cutting wire passes through the steering channel, it achieves a preset angle of steering. The gap between the outer end face and the steering surface facilitates the rotation of the guide wheel. The width of the gap is smaller than the outer diameter of the cutting wire, which effectively prevents the cutting wire from deviating from the steering channel when passing through it, thus providing a structural basis for achieving automatic wire threading. However, in this wire-directing mechanism, the wire is fed along the deflection channel. To prevent the wire from deviating from the deflection channel, high installation accuracy is required between the outer end face of the guide wheel and the deflection surface. Even with precise installation, the end of the wire still has a significant chance of getting stuck in the gap between the outer end face of the guide wheel and the deflection surface, causing wire threading failure. Therefore, it is necessary to optimize the structure of this wire-directing mechanism to overcome the above-mentioned defects. Utility Model Content

[0003] The purpose of this invention is to provide a wire turning mechanism with a baffle structure to ensure the smooth wire threading operation.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A wire deflection mechanism with a baffle structure includes:

[0006] Steering plate, which has a load-bearing space;

[0007] A steering cover plate, which is located outside the steering carrier plate and forms a cutting wire steering space between the steering carrier plate and the steering cover plate;

[0008] Steering core plate, which is installed between steering carrier plate and steering cover plate, has a steering notch on its side, which extends along the steering path of the cutting wire;

[0009] The steering guide wheel is located in the steering carrier plate and the steering cover plate, and corresponds to the position of the steering core plate. Its outer wall is adapted to the shape of the steering recess. The steering core plate and the steering guide wheel form a steering guide groove in the turning space of the cutting wire. The steering guide groove guides the turning process of the cutting wire.

[0010] Also includes:

[0011] The partition core plate is installed between the steering plate and the steering cover plate, and is located on both sides of the steering guide wheel. The side of the partition core plate has a relief recess that is adapted to the shape of the outer wall of the steering guide wheel. The partition core plate and the outer wall of the steering guide wheel form a rewinding guide groove that communicates with the steering guide groove. When the cutting wire in the steering guide groove deviates from the steering path, it can enter the rewinding guide groove.

[0012] The partition teeth are provided in several parts, and each partition tooth width is formed in the relief recess of the partition core plate. They extend radially towards the steering guide wheel along the relief recess and are arranged sequentially along the circumference of the relief recess. The partition teeth block the cutting wire entering the rewind guide groove to prevent it from continuing to move along the rewind guide groove.

[0013] In one embodiment of this utility model, the turning notch includes:

[0014] The input straight section is a straight structure located at one end of the steering core plate and tangent to the outer wall of the steering guide wheel;

[0015] The output straight section is a flat structure located at the other end of the steering core plate and tangent to the outer wall of the steering guide wheel;

[0016] The steering arc segment is an arc-shaped structure located in the middle of the steering core plate and adapted to the shape of the steering guide wheel. The input straight segment and the output straight segment are respectively connected to the two ends of the steering arc segment, so that the cutting wire can move along the input straight segment, the steering arc segment and the output straight segment.

[0017] In one embodiment of this utility model, an input carrier plate is provided on the outer side of the steering carrier plate, the input carrier plate corresponds to the position of the input straight section, and has a bearing space inside;

[0018] An input cover plate is provided on the outside of the input carrier plate. The position of the input cover plate corresponds to that of the input carrier plate, and a cutting wire input space is formed between the input carrier plate and the input cover plate.

[0019] An input core plate is provided between the input cover plate and the input carrier plate. An input groove is provided in the input core plate. The input groove is connected to the input straight section. The cutting wire can enter the input straight section along the input groove.

[0020] In one embodiment of this utility model, a carrier plate guide groove is provided on the edge of the input carrier plate, and the carrier plate guide groove is connected to one side of the input slot.

[0021] The edge of the input cover plate is provided with a cover plate guide groove, which is connected to the other side of the input slot and interlocks with the carrier plate guide groove to form an inverted conical input port. The cutting wire can move from the inverted conical input port into the input slot.

[0022] In one embodiment of this utility model, the steering carrier plate and the input carrier plate are respectively installed on the support beam. The support beam is also provided with a transition top plate, which is located outside the input carrier plate, the input cover plate and the input core plate, and corresponds to the position of the inverted conical input port. A wire feeding end is installed in the transition top plate, which is connected to the inverted conical input port. The cutting wire can be fed into the inverted conical input port through the wire feeding end.

[0023] In one embodiment of this utility model, fixed guide wheels and movable guide wheels are installed in the input carrier plate, input cover plate and input core plate. The fixed guide wheels and movable guide wheels are arranged on both sides of the input slot. When the cutting wire moves along the input slot, it is clamped and positioned by the fixed guide wheels and movable guide wheels.

[0024] In one embodiment of this utility model, the movable guide wheel is mounted on the end of the piston rod of the clamping cylinder via a rotating shaft. The clamping cylinder drives the movable guide wheel to approach or move away from the fixed guide wheel to clamp or release the cutting wire.

[0025] The advantages of this utility model are:

[0026] The wire turning mechanism uses a turning core plate and a turning guide wheel to form a turning guide groove in the wire turning space, guiding the turning process of the wire and ensuring that the wire moves along the predetermined turning path. The baffle core plate and the outer wall of the turning guide wheel form a rewinding guide groove that communicates with the turning guide groove. When the wire deviates from the turning path in the turning guide groove, it can enter the rewinding guide groove. The baffle teeth block the wire entering the rewinding guide groove to prevent it from continuing to move along the rewinding guide groove. When the end of the wire deviates from the conveying path and enters the rewinding guide groove under the action of centrifugal force, it can be stuck between adjacent baffle teeth blocks, which makes it easy to detect in time, pull the wire back to its original position and re-convey it, and prevent the wire from deviating further from the turning path and causing entanglement and blockage. This helps to improve the stability of the wire conveying. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the cutting wire turning mechanism with a baffle structure proposed in this utility model;

[0028] Figure 2 This is an exploded view of the wire-directing mechanism. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] like Figure 1 , Figure 2 As shown, the cutting wire steering mechanism with a baffle structure proposed in this utility model includes a steering carrier plate 100, a steering cover plate 200, a steering core plate 300, a steering guide wheel 400, a baffle core plate 500, and a baffle tooth block 510. The steering carrier plate has a bearing space. The steering cover plate is located outside the steering carrier plate, forming a cutting wire steering space between the steering carrier plate and the steering cover plate. The steering core plate is installed between the steering carrier plate and the steering cover plate, and its side has a steering recess extending along the steering path of the cutting wire. The steering guide wheel is located in the steering carrier plate and the steering cover plate, and its position corresponds to that of the steering core plate. Its outer wall is adapted to the shape of the steering recess. The steering core plate and the steering guide wheel form a steering guide groove in the cutting wire steering space. The turning process of the cutting wire is guided by the turning guide groove. The baffle core plate is installed between the turning carrier plate and the turning cover plate, and is arranged on both sides of the turning guide wheel. The side of the baffle core plate has a relief recess, which is adapted to the shape of the outer wall of the turning guide wheel. The baffle core plate and the outer wall of the turning guide wheel form a rewinding guide groove that communicates with the turning guide groove. When the cutting wire deviates from the turning path in the turning guide groove, it can enter the rewinding guide groove. There are several baffle teeth, and the width of each baffle tooth is formed in the relief recess of the baffle core plate. They extend radially towards the turning guide wheel along the relief recess and are arranged sequentially along the circumference of the relief recess. The baffle teeth block the cutting wire that enters the rewinding guide groove and prevents it from continuing to move along the rewinding guide groove.

[0031] In this embodiment, the outer wall of the steering guide wheel is provided with a guide ring groove that is recessed inward, which can assist in guiding the feeding process of the cutting wire. The steering carrier plate and the steering cover plate are respectively provided with a clearance opening adapted to the steering guide wheel, and each clearance opening is provided with an auxiliary tooth block corresponding to the position of the partition tooth block. When the end of the cutting wire deviates from the feeding path and enters the rewind guide groove, it is stuck between the adjacent partition tooth blocks under the action of centrifugal force, preventing it from continuing to be fed along the rewind guide groove. Its deviation state can be observed from the gap between the auxiliary tooth blocks or sensed by the cutting wire feeding state sensor. At this time, the cutting wire can be pulled back to its original position and fed again.

[0032] In this embodiment, the steering notch includes an input straight section 310, an output straight section 320, and a steering arc section 330. The input straight section is a flat structure located at one end of the steering core plate and tangent to the outer wall of the steering guide wheel. The output straight section is a flat structure located at the other end of the steering core plate and tangent to the outer wall of the steering guide wheel. The steering arc section is an arc-shaped structure located in the middle of the steering core plate and adapted to the shape of the steering guide wheel. The input straight section and the output straight section are respectively connected to both ends of the steering arc section, so that the cutting wire can move along the input straight section, the steering arc section, and the output straight section.

[0033] In this embodiment, an input carrier plate 310 is provided on the outer side of the steering carrier plate, which corresponds to the position of the input straight section and has a bearing space inside; an input cover plate 620 is provided on the outer side of the input carrier plate, which corresponds to the position of the input carrier plate, and a cutting wire input space is formed between the input carrier plate and the input cover plate; an input core plate 630 is provided between the input cover plate and the input carrier plate, and an input slot 631 is opened in the input core plate, which connects with the input straight section, and the cutting wire can enter the input straight section along the input slot.

[0034] In this embodiment, a carrier plate guide groove 611 is provided on the edge of the input carrier plate, which is connected to one side of the input slot; a cover plate guide groove 621 is provided on the edge of the input cover plate, which is connected to the other side of the input slot and engages with the carrier plate guide groove to form an inverted conical input port, from which the cutting wire can move into the input slot.

[0035] In this embodiment, the steering carrier plate and the input carrier plate are respectively installed on the support beam 700. The support beam is also provided with a transition top plate 710. The transition top plate is located outside the input carrier plate, the input cover plate and the input core plate, and corresponds to the position of the inverted conical input port. The transition top plate is equipped with a wire feeding end 720, which is connected to the inverted conical input port. The cutting wire can be fed into the inverted conical input port through the wire feeding end.

[0036] In this embodiment, fixed guide wheels 810 and movable guide wheels 820 are installed in the input carrier plate, input cover plate, and input core plate. The fixed guide wheels and movable guide wheels are arranged on both sides of the input slot. When the cutting wire moves along the input slot, it is clamped and positioned by the fixed guide wheels and movable guide wheels. The fixed guide wheels and movable guide wheels are also provided with meshing transmission gears on their sides, so that the fixed guide wheels and movable guide wheels rotate synchronously and avoid slippage.

[0037] In this embodiment, the movable guide wheel is mounted on the end of the piston rod of the clamping cylinder 910 via a rotating shaft. The clamping cylinder drives the movable guide wheel to move closer to or away from the fixed guide wheel to clamp or release the cutting wire. A buffer spring 920 is also provided between the piston rod and the clamping cylinder to apply a buffering force to the clamping operation of the cutting wire.

[0038] The traction force required during the wire feeding process is provided by the traction drive mechanism, which uses existing technology and therefore will not be described in detail.

[0039] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A wire guiding mechanism with a baffle structure, comprising: Steering plate, which has a load-bearing space; A steering cover plate, which is located outside the steering carrier plate and forms a cutting wire steering space between the steering carrier plate and the steering cover plate; Steering core plate, which is installed between steering carrier plate and steering cover plate, has a steering notch on its side, which extends along the steering path of the cutting wire; Steering guide wheel, which is located in the steering carrier plate and steering cover plate and corresponds to the position of the steering core plate. Its outer wall is adapted to the shape of the steering recess. The steering core plate and the steering guide wheel are enclosed in the cutting wire steering space to form a steering guide groove. Its characteristic is that it further includes: The partition core plate is installed between the steering plate and the steering cover plate, and is arranged on both sides of the steering guide wheel. The side of the partition core plate has a relief recess, which is adapted to the shape of the outer wall of the steering guide wheel. The relief recess is formed between the outer wall of the steering guide wheel and the partition core plate to form a rewinding guide groove that communicates with the steering guide groove. The partition tooth block has several parts, and the width of each partition tooth is formed in the recess of the partition core plate. It extends radially towards the steering guide wheel along the recess and is arranged sequentially along the circumference of the recess.

2. The cutting wire steering mechanism with a baffle structure according to claim 1, characterized in that, The steering notch includes: The input straight section is a straight structure located at one end of the steering core plate and tangent to the outer wall of the steering guide wheel; The output straight section is a flat structure located at the other end of the steering core plate and tangent to the outer wall of the steering guide wheel; The steering arc segment is an arc-shaped structure located in the middle of the steering core plate and adapted to the shape of the steering guide wheel. The input straight segment and the output straight segment are respectively connected to the two ends of the steering arc segment.

3. The cutting wire steering mechanism with a baffle structure according to claim 2, characterized in that: An input carrier plate is provided on the outer side of the steering carrier plate. This input carrier plate corresponds to the position of the input straight section and has a load-bearing space inside. An input cover plate is provided on the outside of the input carrier plate. The position of the input cover plate corresponds to that of the input carrier plate, and a cutting wire input space is formed between the input carrier plate and the input cover plate. An input core plate is provided between the input cover plate and the input carrier plate. An input groove is provided in the input core plate, and the input groove is connected to the input straight section.

4. A cutting wire steering mechanism with a baffle structure according to claim 3, characterized in that: The input carrier plate has a carrier plate guide groove on its edge, and the carrier plate guide groove is connected to one side of the input slot. The edge of the input cover plate is provided with a cover plate guide groove, which is connected to the other side of the input groove and interlocks with the carrier plate guide groove to form an inverted cone-shaped input port.

5. A wire-directing mechanism with a baffle structure according to claim 4, characterized in that: The steering carrier plate and the input carrier plate are respectively installed on the support crossbeam. The support crossbeam is also provided with a transition top plate. The transition top plate is located outside the input carrier plate, the input cover plate and the input core plate, and corresponds to the position of the inverted conical input port. The transition top plate is equipped with a wire feed end, which is connected to the inverted conical input port.

6. A wire-directing mechanism with a baffle structure according to claim 3, characterized in that: Fixed guide wheels and movable guide wheels are installed in the input carrier plate, input cover plate and input core plate, and the fixed guide wheels and movable guide wheels are arranged on both sides of the input slot.

7. A wire-directing mechanism with a baffle structure according to claim 1, characterized in that: The movable guide wheel is mounted on the end of the piston rod of the clamping cylinder via a rotating shaft. The clamping cylinder drives the movable guide wheel to move closer to or away from the fixed guide wheel.

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