Pay-off device for wire feeding in wire cutting and wire cutting equipment

Abstract

The utility model discloses a pay-off device for wire feeding in wire cutting and wire cutting equipment, and relates to the technical field of wire cutting machining equipment, the pay-off device comprises a fixing support, a pay-off wheel, a rubber friction guide block and an adjusting device, the fixing support is used for being detachably and fixedly connected with a wire frame stand column of numerical control electric spark wire cutting equipment; the wire defending wheel is rotationally connected with the fixed bracket; the rubber friction guide block is used for making contact with the pay-off wheel and can generate friction resistance on the pay-off wheel and limit the pay-off wheel. The fixed end of the adjusting device is fixedly connected with the fixed support, the movable end of the adjusting device is fixedly connected with the rubber friction guide block, the adjusting device is adjusted to enable the rubber friction guide block to be close to or away from the pay-off wheel so as to adjust the friction force between the rubber friction guide block and the pay-off wheel, the structure is simple, operation is convenient, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting processing equipment, in particular to a wire-laying device for wire cutting and wire cutting equipment. Background Art

[0002] CNC wire EDM uses a molybdenum wire that is passed through a pulse current and moves at high speed as an electrode. The electric spark is generated by the discharge between the pulse and the workpiece for cutting. Due to wear or wire breakage, the molybdenum wire used needs to be replaced frequently. However, during the process of replacing the cutting wire in CNC wire EDM equipment, there is a common problem of the pay-off wheel shaking and excessive pay-off due to inertia, which causes the wire storage drum to press the wire and cannot be put on the wire storage drum. Part of the cutting wire that has been put on has to be removed, causing waste, seriously affecting work efficiency, and causing trouble for molybdenum wire replacement. Utility Model Content

[0003] The utility model aims to provide a wire-laying device and wire-cutting equipment for wire cutting, so as to solve the problems existing in the above-mentioned prior art, and has a simple structure, convenient operation and effectively improves work efficiency.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a wire-paying device for wire cutting, comprising: a fixed bracket, a wire-paying wheel, a rubber friction guide block and an adjusting device, wherein the fixed bracket is used for being detachably fixedly connected to a wire rack column of a numerical control electric spark wire cutting device; the wire-paying wheel is used for being rotatably connected to the fixed bracket; the rubber friction guide block is used for contacting the wire-paying wheel and being able to generate friction resistance to the wire-paying wheel and being able to limit the wire-paying wheel; the fixed end of the adjusting device is fixedly connected to the fixed bracket, and the movable end of the adjusting device is fixedly connected to the rubber friction guide block, and adjusting the adjusting device can make the rubber friction guide block approach or move away from the wire-paying wheel so as to adjust the friction between the rubber friction guide block and the wire-paying wheel.

[0006] Preferably, the adjusting device comprises a connecting bracket and a telescopic member, one end of the connecting bracket is fixedly connected to the fixed bracket, the fixed end of the telescopic member is fixedly connected to the connecting bracket, and the movable end of the telescopic member is fixedly connected to the rubber friction guide block.

[0007] Preferably, the telescopic member includes a guide cylinder, an elastic member, a loading guide block and a loading screw, the guide cylinder is fixedly connected to the connecting bracket, the loading guide block is slidably connected in the guide cylinder, the elastic member is arranged in the guide cylinder, and one end of the elastic member is fixedly connected to the loading guide block, and the other end is fixedly connected to the rubber friction guide block, the rubber friction guide block is slidably connected to the guide cylinder, the bottom wall of the guide cylinder is provided with a threaded hole, the loading screw is threadedly connected to the threaded hole, and one end of the loading screw extends into the guide cylinder and abuts against the loading guide block.

[0008] Preferably, the elastic member is a spring, and the expansion and contraction direction of the spring is the radial direction of the pay-off wheel.

[0009] Preferably, a receiving groove is provided at one end of the rubber friction guide block away from the elastic member, the outer edge of the pay-off wheel is used to abut against the receiving groove, and a gap is provided between the side wall of the pay-off wheel and the side wall of the receiving groove.

[0010] Preferably, it also includes a support screw, a first gasket, a second gasket and a nut, one end of the support screw is fixedly connected to the fixed bracket, the pay-off wheel is used to be sleeved on the outside of the support screw, the first gasket and the second gasket are respectively arranged on both sides of the pay-off wheel and sleeved on the outside of the support screw, and the nut is threadedly connected to the support screw and is arranged on the outside of the first gasket.

[0011] Preferably, the fixing bracket is provided with a first fixing hole and a second fixing hole, and the first fixing hole and the second fixing hole are used for allowing bolts to pass through so as to be fixedly connected with the wire rack column of the CNC electric spark wire cutting equipment.

[0012] The utility model also provides a wire cutting device, comprising: the wire-laying device for wire cutting as described above.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model provides a wire-paying device and wire-cutting equipment for wire cutting. The friction between the rubber friction guide block and the wire-paying wheel can be adjusted by arranging an adjustment device and a rubber friction guide block, thereby preventing the wire-paying wheel from over-paying due to inertia. In addition, the rubber friction guide block can limit the wire-paying wheel to prevent the wire-paying wheel from shaking, thereby preventing the wire storage drum from pressing the wire and being unable to put the wire on the wire storage drum, avoiding the removal of part of the cutting wire that has been put on, saving costs, effectively improving work efficiency, and facilitating the replacement of molybdenum wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A front view of a wire-laying device for wire cutting provided by the utility model;

[0017] Figure 2 for Figure 1 Side view of

[0018] Figure 3 for Figure 1 Bottom view of

[0019] Figure 4 A front view of the wire cutting device provided by the utility model;

[0020] In the figure: 1. first gasket; 2. nut; 3. support screw; 4. pay-off wheel; 5. rubber friction guide block; 6. spring; 7. loading guide block; 8. loading screw; 9. connecting bracket; 10. second gasket; 11. first fixing hole; 12. second fixing hole; 13. fixing bracket; 14. guide cylinder; 15. wire rack column; 16. wire pulley; 17. cutting wire; 18. wire storage cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model aims to provide a wire-laying device and wire-cutting equipment for wire cutting, so as to solve the problems existing in the above-mentioned prior art, and has a simple structure, convenient operation and effectively improves work efficiency.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1

[0025] This embodiment provides a wire-laying device for wire cutting. Figures 1 to 3As shown, it includes: a fixed bracket 13, a pay-off wheel 4, a rubber friction guide block 5 and an adjusting device, wherein the fixed bracket 13 is used to be detachably fixedly connected to the wire rack column 15 of the CNC electric spark wire cutting equipment; the pay-off wheel is used to be rotatably connected to the fixed bracket 13; the rubber friction guide block 5 is used to contact the pay-off wheel 4 and can generate friction resistance to the pay-off wheel 4 and can limit the pay-off wheel 4; the fixed end of the adjusting device is fixedly connected to the fixed bracket 13, and the movable end of the adjusting device is fixedly connected to the rubber friction guide block 5. Adjusting the adjusting device can make the rubber friction guide block 5 is close to or away from the pay-off wheel 4 to adjust the friction between the rubber friction guide block 5 and the pay-off wheel 4. By setting the adjusting device and the rubber friction guide block 5, the friction between the rubber friction guide block 5 and the pay-off wheel 4 can be adjusted, so as to avoid the situation where the pay-off wheel 4 over-pays the wire due to inertia. In addition, the rubber friction guide block 5 can limit the pay-off wheel 4 to avoid the pay-off wheel 4 from shaking, so as to avoid the wire storage drum 18 from pressing the wire and being unable to put the wire on the wire storage drum 18, avoid removing the part of the cutting wire 17 that has been put on, save costs, effectively improve work efficiency, and facilitate the replacement of molybdenum wire.

[0026] In a preferred scheme of the present embodiment, the adjusting device includes a connecting bracket 9 and a telescopic member, one end of the connecting bracket 9 is fixedly connected to the fixed bracket 13, the fixed end of the telescopic member is fixedly connected to the connecting bracket 9, and the movable end of the telescopic member is fixedly connected to the rubber friction guide block 5. The structure is simple and the operation is convenient. The friction force between the rubber friction guide block 5 and the pay-off wheel 4 can be adjusted by telescoping the telescopic member.

[0027] In a preferred scheme of the present embodiment, the telescopic member includes a guide cylinder 14, an elastic member, a loading guide block 7 and a loading screw 8. The guide cylinder 14 is fixedly connected to the connecting bracket 9, the loading guide block 7 is slidably connected in the guide cylinder, the elastic member is arranged in the guide cylinder, and one end of the elastic member is fixedly connected to the loading guide block 7, and the other end is fixedly connected to the rubber friction guide block 5. The rubber friction guide block 5 is slidably connected to the guide cylinder 14. A threaded hole is arranged on the bottom wall of the guide cylinder 14, the loading screw 8 is threadedly connected to the threaded hole, and one end of the loading screw 8 extends into the guide cylinder 14 and abuts against the loading guide block 7. The structure is simple and the materials are convenient to obtain. The guide cylinder can ensure the stability of the movement of the rubber friction guide block 5. By rotating the loading screw 8, the friction force between the rubber friction guide block 5 and the pay-off wheel 4 can be adjusted.

[0028] In a preferred solution of the present embodiment, the elastic member is a spring 6, the expansion and contraction direction of the spring 6 is the radial direction of the pay-off wheel 4, and the structure is simple and the material is convenient to obtain.

[0029] In a preferred scheme of the present embodiment, a receiving groove is provided at one end of the rubber friction guide block 5 away from the elastic member, the outer edge of the pay-off wheel 4 is used to abut and be placed in the groove, and a gap is provided between the side wall of the pay-off wheel 4 and the side wall of the receiving groove, and a gap of 0.2 mm is left between the placement groove on the rubber friction guide block 5 and the outer sides of the pay-off wheel 4.

[0030] In a preferred scheme of the present embodiment, the wire-paying device for wire cutting also includes a support screw 3, a first gasket 1, a second gasket 10 and a nut 2. One end of the support screw 3 is fixedly connected to a fixed bracket 13. The pay-off wheel 4 is used to be sleeved on the outside of the support screw 3. The first gasket 1 and the second gasket 10 are respectively arranged on both sides of the pay-off wheel 4 and sleeved on the outside of the support screw 3. The nut 2 is threadedly connected to the support screw 3 and is arranged on the outside of the first gasket 1. It has a simple structure and is easy to use. By rotating the thread, the pay-off wheel 4 can rotate freely while avoiding large swings to the left and right.

[0031] In a preferred solution of the present embodiment, a first fixing hole 11 and a second fixing hole 12 are provided on the fixing bracket 13. The first fixing hole 11 and the second fixing hole 12 are used to allow bolts to pass through to be fixedly connected to the wire rack column 15 of the CNC electric spark wire cutting equipment. The structure is simple and convenient to fix.

[0032] Embodiment 2

[0033] This embodiment also provides a wire cutting device, such as Figure 4 As shown, it includes: a wire-releasing device for wire cutting as in the first embodiment, a wire rack column 15, a wire storage drum 18 and a wire guide wheel 16.

[0034] Usage process: fix the fixed bracket 13 of the pay-off device for wire cutting on the wire frame column 15 with bolts, the pay-off wheel 4 is a standard specification wire cutting molybdenum wire produced by a professional manufacturer, install the first gasket 1, the pay-off wheel 4, and the second gasket 10 on the support screw 3 respectively, screw on the nut 2, so that the pay-off wheel 4 can rotate freely, adjust the position of the starting point of the wire storage barrel 18, take out the wire head of the cutting wire 17 in the pay-off wheel 4, pull the cutting wire 17 through the guide wheel 16, and fix the wire head to the fixing bolt at the starting point of the wire storage barrel 18, turn the loading screw 8, apply a certain friction force to the pay-off wheel 4, rotate the wire storage barrel 18, and feel that the cutting wire 17 reaches the appropriate tightening force, then start the automatic wire feeding program on the wire cutting controller until the cutting wire 17 is neatly arranged and covers 2 / 3 of the wire storage barrel 18, thereby completing the wire feeding work.

[0035] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A wire-laying device for wire cutting, characterized in that: include: A fixed bracket, the fixed bracket is used to be detachably fixedly connected to a wire rack column of a CNC wire-cutting electric discharge device; A pay-off wheel, the pay-off wheel being used for being rotatably connected to the fixed bracket; A rubber friction guide block, the rubber friction guide block is used to contact the pay-off wheel and can generate friction resistance to the pay-off wheel and can limit the pay-off wheel; as well as An adjusting device, wherein the fixed end of the adjusting device is fixedly connected to the fixed bracket, and the movable end of the adjusting device is fixedly connected to the rubber friction guide block. Adjusting the adjusting device can make the rubber friction guide block approach or move away from the pay-off wheel to adjust the friction between the rubber friction guide block and the pay-off wheel.

2. The wire-laying device for wire cutting according to claim 1, characterized in that: The adjusting device comprises a connecting bracket and a telescopic member, one end of the connecting bracket is fixedly connected to the fixed bracket, the fixed end of the telescopic member is fixedly connected to the connecting bracket, and the movable end of the telescopic member is fixedly connected to the rubber friction guide block.

3. The wire-laying device for wire cutting according to claim 2, characterized in that: The telescopic member includes a guide cylinder, an elastic member, a loading guide block and a loading screw. The guide cylinder is fixedly connected to the connecting bracket, the loading guide block is slidably connected to the guide cylinder, the elastic member is arranged in the guide cylinder, and one end of the elastic member is fixedly connected to the loading guide block, and the other end is fixedly connected to the rubber friction guide block, the rubber friction guide block is slidably connected to the guide cylinder, the bottom wall of the guide cylinder is provided with a threaded hole, the loading screw is threadedly connected to the threaded hole, and one end of the loading screw extending into the guide cylinder abuts against the loading guide block.

4. The wire-laying device for wire cutting according to claim 3, characterized in that: The elastic member is a spring, and the expansion and contraction direction of the spring is the radial direction of the pay-off wheel.

5. The wire-laying device for wire cutting according to claim 3, characterized in that: An accommodating groove is arranged at one end of the rubber friction guide block away from the elastic member, the outer edge of the pay-off wheel is used to abut against the inside of the accommodating groove, and a gap is arranged between the side wall of the pay-off wheel and the side wall of the accommodating groove.

6. The wire-laying device for wire cutting according to claim 1, characterized in that: It also includes a support screw, a first gasket, a second gasket and a nut. One end of the support screw is fixedly connected to the fixed bracket. The pay-off wheel is used to be sleeved on the outside of the support screw. The first gasket and the second gasket are respectively arranged on both sides of the pay-off wheel and sleeved on the outside of the support screw. The nut is threadedly connected to the support screw and is arranged on the outside of the first gasket.

7. The wire-laying device for wire cutting according to claim 1, characterized in that: The fixing bracket is provided with a first fixing hole and a second fixing hole, and the first fixing hole and the second fixing hole are used for bolts to pass through so as to be fixedly connected with the wire rack column of the CNC electric spark wire cutting equipment.

8. A wire cutting device, characterized in that: include: A wire-laying device for wire cutting as claimed in any one of claims 1 to 7.

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