Water spraying structure of upper machine head for wire cutting

Abstract

The utility model discloses a water spraying structure of a wire cutting upper machine head, and belongs to the technical field of electrode wire cutting equipment. The wire cutting upper machine head water spraying structure comprises a wire penetrating base, a first liquid outlet hole and a wire guide hole which are sequentially connected are formed in the wire penetrating base, the first liquid outlet hole is connected with a cooling liquid system, and when the cooling system conveys cooling liquid to the wire penetrating base, the first liquid outlet hole conveys the cooling liquid into the wire guide hole. Cooling liquid of a cooling liquid system can enter the wire guide hole through the first liquid outlet hole, the cooling liquid can make direct contact with the electrode wire in the wire penetrating base, the contact time of the cooling liquid in the upper machine head and the electrode wire is greatly prolonged, and the problem that in the prior art, cooling efficiency is low is solved.

Description

Technical Field

[0001] The utility model belongs to the field of electrode wire cutting equipment, in particular to a water spray structure on a wire cutting machine head. Background Art

[0002] In the existing technology, the cooling of the wire cutting upper head is achieved by providing water holes in the upper head, allowing the coolant to enter the upper head from the side and then flow out from the bottom of the upper head, so that the coolant is sprayed onto the surface of the electrode wire along the outer wall of the wire guide tube. There is a problem that the coolant does not directly contact the electrode wire in the upper head, and the cooling efficiency is low. Utility Model Content

[0003] The purpose of the utility model is to provide a water spray structure for the upper head of a wire cutting machine, so that the coolant is in direct contact with the electrode wire in the wire threading base, which greatly increases the direct contact time between the coolant in the upper head and the electrode wire, and solves the problem of low cooling efficiency in the existing technology.

[0004] The technical solution of the utility model is that the water spray structure of the upper head of the wire cutting machine is connected with the cooling liquid system of the machine tool.

[0005] The water spray structure of the upper head of the wire cutting machine includes: a wire threading base, wherein a first liquid outlet hole and a wire guide hole connected in sequence are provided in the wire threading base, and the first liquid outlet hole is connected to the coolant system.

[0006] When the cooling system delivers cooling liquid to the wire threading base, the first liquid outlet delivers the cooling liquid into the wire guide hole.

[0007] In a further embodiment, the wire cutting upper head water spray structure also includes: a wire threading upper cover, which is installed on the top of the wire threading base, and the wire threading upper cover and the wire threading base enclose a liquid inlet cavity, which is used to connect to the coolant system.

[0008] The first liquid outlet is connected to the liquid inlet cavity and the guide wire hole.

[0009] In a further embodiment, the threading base is further provided with a second liquid outlet, the top end of which is communicated with the liquid inlet cavity, and the bottom end of which is arranged on the side or bottom end of the threading base.

[0010] In a further embodiment, the water spray structure of the wire cutting upper head also includes: a wire threading lower cover and a wire guide tube.

[0011] The wire threading lower cover and the wire guide tube are installed at the bottom end of the wire threading base, and the wire threading lower cover and the wire threading base enclose a liquid outlet cavity.

[0012] The wire guide tube extends a predetermined distance toward the outside through the wire threading lower cover, and the outer wall of the wire guide tube and the inner wall of the wire threading lower cover are spaced apart by a predetermined distance, thereby further increasing the contact time between the coolant and the wire guide tube.

[0013] In a further embodiment, the wire cutting upper head water spray structure further includes: installing a lower cover.

[0014] The wire threading lower cover is installed on the wire threading base by installing the lower cover.

[0015] In a further embodiment, a liquid outlet groove is provided at the top end of the wire guide tube, one end of the liquid outlet groove is connected to the wire guide hole, and the other end thereof is connected to the liquid outlet cavity.

[0016] In a further embodiment, the water spray structure of the wire cutting upper head also includes: a first eye module, which is arranged between the wire guide tube and the wire threading base.

[0017] One end of the liquid outlet groove is connected to the wire guide hole between the first eye module and the wire threading base.

[0018] In a further embodiment, a third liquid outlet is provided at the bottom end of the wire guide tube, one end of the third liquid outlet is connected to the wire guide hole, and the other end thereof is connected to the outside.

[0019] In a further embodiment, the water spray structure of the wire cutting upper head further includes: a second eye module, which is installed at the bottom end of the wire guide tube.

[0020] One end of the third liquid outlet is connected to the guide wire hole above the second eye module.

[0021] In a further embodiment, a plurality of the second liquid outlet holes are distributed around the circumference of the guide wire hole.

[0022] The beneficial effect of the present invention is that: through the connection between the first liquid outlet hole and the wire guide hole, the coolant of the coolant system can enter the wire guide hole through the first liquid outlet hole, and the coolant can directly contact the electrode wire in the wire threading base, which greatly increases the contact time between the coolant in the upper head and the electrode wire, and solves the problem of low cooling efficiency in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall axonometric sectional schematic diagram of the upper machine head of the utility model.

[0024] Figure 2 It is an independent axonometric schematic diagram of the wire threading base of the present utility model.

[0025] Figure 3 It is a schematic diagram of the overall appearance of the upper machine head of the utility model.

[0026] Figure 4 It is a partially enlarged schematic diagram of the wire guide tube of the utility model.

[0027] Figure 5 It is a schematic diagram of the overall appearance of the upper head of the utility model from another angle.

[0028] The reference numerals shown in the figure are: wire threading base 1, first liquid outlet hole 101, wire guide hole 102, second liquid outlet hole 103, wire threading upper cover 2, liquid inlet cavity 201, wire threading lower cover 3, liquid outlet cavity 301, wire guide tube 4, third liquid outlet hole 401, liquid outlet trough 402, installation lower cover 5, first eye module 6, second eye module 7. DETAILED DESCRIPTION

[0029] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0030] The present application discloses a water spray structure for the upper head of a wire cutting machine. The upper head is installed on the wire feeding device of the wire cutting machine and is connected to the coolant system of the machine tool, so that the coolant is in direct contact with the electrode wire in the wire threading base, which greatly increases the direct contact time between the coolant in the upper head and the electrode wire, and solves the problem of low cooling efficiency in the existing technology.

[0031] The water spray structure of the upper head of the wire cutting machine comprises: a wire threading base 1, in which a first liquid outlet 101 and a wire guide hole 102 connected in sequence are provided, and the first liquid outlet 101 is connected to the cooling liquid system.

[0032] When the cooling system delivers the cooling liquid to the wire threading base 1 , the first liquid outlet 101 delivers the cooling liquid into the wire guide hole 102 .

[0033] like Figure 1 The wire cutting upper head water spray structure shown also includes: a wire threading upper cover 2, which is installed on the top of the wire threading base 1. The wire threading upper cover 2 and the wire threading base 1 enclose a liquid inlet cavity 201, which is used to connect to the coolant system.

[0034] The first liquid outlet 101 is connected to the liquid inlet cavity 201 and the guide wire hole 102 .

[0035] like Figure 1 and 2 The threading base 1 shown is further provided with a second liquid outlet 103 , the top end of which is communicated with the liquid inlet cavity 201 , and the bottom end of which is arranged on the side or bottom end of the threading base 1 .

[0036] In this embodiment, a plurality of second liquid outlet holes 103 are distributed around the circumference of the guide wire hole 102 .

[0037] In this embodiment, the wire threading base 1 is provided with at least three second liquid outlet holes 103 . In a preferred embodiment, five second liquid outlet holes 103 are provided and are evenly distributed around the circumference of the wire guide hole 102 .

[0038] The second liquid outlet 103 can further improve the cooling efficiency.

[0039] like Figure 1 The water spray structure of the upper head of the wire cutting machine shown also includes: a wire threading lower cover 3 and a wire guide tube 4.

[0040] The wire threading lower cover 3 and the wire guide tube 4 are installed at the bottom end of the wire threading base 1 , and the wire threading lower cover 3 and the wire threading base 1 enclose a liquid outlet cavity 301 .

[0041] The wire guide tube 4 passes through the wire threading lower cover 3 and extends to the outside by a predetermined distance. The outer wall of the wire guide tube 4 and the inner wall of the wire threading lower cover 3 are spaced apart by a predetermined distance.

[0042] In this embodiment, the bottom of the liquid outlet cavity 301 is a curved surface structure or a truncated cone structure with a larger upper portion and a smaller lower portion. Figure 1 The bottom of the liquid chamber 301 is a curved structure that is larger at the top and smaller at the bottom.

[0043] The outer wall of the wire guide tube 4 and the inner wall of the wire threading lower cover 3 are spaced apart by a predetermined distance so that the coolant in the liquid outlet cavity 301 can flow out along the wire guide tube 4, further increasing the contact time between the coolant and the wire guide tube 4 and improving the cooling efficiency.

[0044] like Figure 1 The water spray structure of the upper head of the wire cutting machine shown further includes: installing a lower cover 5.

[0045] The wire threading lower cover 3 is mounted on the wire threading base 1 through the mounting lower cover 5 .

[0046] like Figure 1 The threading lower cover 3 and the installation lower cover 5 shown are matched through a flange structure, so that the threading lower cover 3 is installed at the bottom end of the threading base 1. A sealing ring can also be provided between the threading lower cover 3 and the installation lower cover 5, or the threading base 1, the installation lower cover 5 and the threading lower cover 3 can be screwed together in sequence.

[0047] Regarding the wire guide tube 4, Figure 1 、 3 A liquid outlet groove 402 is provided at the top end of the wire guide tube 4 shown in FIG. 4 . One end of the liquid outlet groove 402 is connected to the wire guide hole 102 , and the other end thereof is connected to the liquid outlet cavity 301 .

[0048] like Figure 3The liquid outlet groove 402 shown includes two transverse grooves, two vertical grooves and two longitudinal grooves connected in sequence. The transverse groove is opened at the top of the threaded portion of the wire guide tube 4 and is connected to the wire guide hole 102. The vertical groove is opened in the threaded portion at the top of the wire guide tube 4. The longitudinal groove is opened on the step portion of the wire guide tube 4 and is connected to the liquid outlet cavity 301.

[0049] In this embodiment, the water spray structure of the upper head of the wire cutting machine further includes: a first eye module 6, which is arranged between the wire guide tube 4 and the wire threading base 1.

[0050] One end of the liquid outlet groove 402 is connected to the wire guide hole 102 between the first eye module 6 and the wire threading base 1.

[0051] like Figure 4 The bottom end of the wire guide tube 4 is provided with a third liquid outlet 401 , one end of the third liquid outlet 401 is connected to the wire guide hole 102 , and the other end thereof is connected to the outside.

[0052] There are several third liquid outlet holes 401 . In a preferred embodiment, the bottom side wall of the wire guide tube 4 is provided with four third liquid outlet holes 401 equally divided around the circumference of the central axis of the wire guide tube 4 .

[0053] In this embodiment, the water spray structure of the upper head of the wire cutting machine further includes: a second eye module 7, which is installed at the bottom end of the wire guide tube 4.

[0054] One end of the third liquid outlet 401 is connected to the guide wire hole 102 above the second eye module 7 .

[0055] Working method: First use the wire feeding device and the upper machine head to thread the wire, and then perform wire cutting.

[0056] When the wire cutting operation is performed, the coolant system delivers the coolant into the first liquid outlet 101 , the wire guide hole 102 and the second liquid outlet 103 through the liquid inlet cavity 201 .

[0057] The coolant in the wire guide hole 102 directly contacts the electrode wire and flows out along the electrode wire.

[0058] The cooling liquid in the second liquid outlet hole 103 enters the liquid outlet cavity 301 and then flows out along the outer wall of the wire guide tube 4 .

[0059] When the coolant in the wire guide hole 102 passes through the liquid outlet trough 402, the first eye module 6, the third liquid outlet 401 and the second eye module 7, because the through-hole diameters of the first eye module 6 and the second eye module 7 are smaller than the diameter of the wire guide hole 102, part of the coolant in the wire threading base 1 passes through the first eye module 6 and the second eye module 7, and the other part flows out from the liquid outlet trough 402 and the third liquid outlet 401, which can flush out the fine slag above the first eye module 6 and the second eye module 7, so that the coolant in the wire guide hole 102 has not only a cooling function but also a slag discharge function, especially in the process of the electrode wire moving upward, the fine slag in the first eye module 6 and the second eye module 7 can be brought to the top of the first eye module 6 and the second eye module 7 and then flushed out by the coolant through the liquid outlet trough 402 and the third liquid outlet 401.

[0060] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The water spray structure on the wire cutting machine head is connected to the coolant system of the machine tool; It is characterized in that The water spray structure of the upper head of the wire cutting machine includes: a wire threading base, wherein the wire threading base is provided with a first liquid outlet and a wire guide hole connected in sequence, and the first liquid outlet is connected to the coolant system; When the cooling system delivers cooling liquid to the wire threading base, the first liquid outlet delivers the cooling liquid into the wire guide hole.

2. The water spray structure of the upper head of the wire cutting machine according to claim 1, characterized in that: The invention also includes: a wire threading upper cover, the wire threading upper cover is installed on the top of the wire threading base, the wire threading upper cover and the wire threading base enclose a liquid inlet cavity, and the liquid inlet cavity is used to connect to the coolant system; The first liquid outlet is connected to the liquid inlet cavity and the guide wire hole.

3. The water spray structure of the upper head of the wire cutting machine according to claim 2, characterized in that: The threading base is further provided with a second liquid outlet hole, the top end of which is communicated with the liquid inlet cavity, and the bottom end of which is arranged on the side or bottom end of the threading base.

4. The water spray structure of the upper head of the wire cutting machine according to claim 3, characterized in that: Also includes: wire threading lower cover and wire guide tube; The wire threading lower cover and the wire guide tube are installed at the bottom end of the wire threading base, and the wire threading lower cover and the wire threading base enclose a liquid outlet cavity; The wire guide tube passes through the wire threading lower cover and extends to the outside by a predetermined distance. The outer wall of the wire guide tube is spaced a predetermined distance from the inner wall of the wire threading lower cover.

5. The water spray structure of the upper head of the wire cutting machine according to claim 4, characterized in that: Also includes: Install the lower cover; The wire threading lower cover is installed on the wire threading base by installing the lower cover.

6. The water spray structure of the upper head of the wire cutting machine according to claim 4, characterized in that: A liquid outlet groove is provided at the top end of the wire guide tube, one end of the liquid outlet groove is connected to the wire guide hole, and the other end thereof is connected to the liquid outlet cavity.

7. The water spray structure of the upper head of the wire cutting machine according to claim 6, characterized in that: Also includes: A first eye module is arranged between the wire guide tube and the wire threading base; One end of the liquid outlet groove is connected to the wire guide hole between the first eye module and the wire threading base.

8. The water spray structure of the upper head of the wire cutting machine according to claim 4, characterized in that: A third liquid outlet is provided at the bottom end of the wire guide tube, one end of the third liquid outlet is connected to the wire guide hole, and the other end thereof is connected to the outside.

9. The water spray structure of the upper head of the wire cutting machine according to claim 8, characterized in that: Also includes: A second eye module is mounted on the bottom end of the wire guide tube; One end of the third liquid outlet is connected to the guide wire hole above the second eye module.

10. The water spray structure of the upper head of the wire cutting machine according to claim 3, characterized in that: A plurality of the second liquid outlet holes are distributed around the circumference of the guide wire hole.

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