Water accumulation preventing cutting guide wheel and wire cut electric discharge machine
By designing the structure of the line driving groove and external drain on the wheel main body of the cutting guide wheel, the problem of water accumulation after long-term use of the guide wheel is solved, and a longer service life and higher cooling efficiency are achieved.
Patent Information
- Application Number
- CN202421567022.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing cutting guide wheels are prone to water accumulation after long-term use, affecting their service life and performance.
A cutting guide wheel that is water-proof is designed, which is equipped with a linear driving groove on the wheel surface of the wheel main body, and forms a wheel surface gap between the inner wall of the shell cavity and the wheel main body. The shell cavity is equipped with an external drain on one side of the wheel main body to form a flow guide path to discharge coolant.
It effectively prevents the problem of water accumulation in the cutting guide wheel, extends the service life, and improves the cooling efficiency of the guide wheel.
Smart Images
Figure CN222754573U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cutting guide wheels, in particular to a water accumulation-proof cutting guide wheel and an electric spark wire cutting machine. Background Art
[0002] In an existing wire-cut electric discharge machine, a copper wire is generally wound around a plurality of guide wheels, and the guide wheels are driven to rotate by winding and unwinding the copper wire. In the existing guide wheels, water is added as a coolant during the cutting process, and the coolant is directly applied to the guide wheels to provide cooling for the guide wheels. When the guide wheels are used for a long time, water is easily accumulated in the internal and external structures of the guide wheels, and the accumulated water is difficult to be discharged from the guide wheels. After long-term use, the service life of the guide wheels will be affected, for example, the guide wheels will be rusted. Utility Model Content
[0003] The purpose of the utility model is to propose a cutting guide wheel that prevents water accumulation, which has a wire drive groove on the wheel surface of the wheel body, and the inner wall of the shell cavity is designed to form a wheel surface gap with the wheel body, and the shell cavity is also provided with an external drainage port on one side of the wheel body, thereby forming a diversion path in the wheel body, which can transfer the coolant to the outside.
[0004] The utility model also provides an electric spark wire cutting machine, which uses the above-mentioned cutting guide wheel.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A water-proof cutting guide wheel comprises: a wheel seat, a wheel shell and a wheel body;
[0007] The shell cavity of the wheel shell is sleeved on the outer side of the wheel seat; the wheel seat is provided with a seat cavity; the wheel body is rotatably limited in the seat cavity; one side of the wheel body covers the opening of the seat cavity; the wheel surface of the wheel body is provided with a wire drive groove; the shell cavity extends to the wheel body, and the inner wall of the shell cavity forms a wheel surface gap with the wheel surface of the wheel body; the shell cavity is provided with a plurality of external drainage outlets on the other side of the wheel body.
[0008] It can be optimized to further include: a built-in sealing plug;
[0009] The built-in sealing plug is arranged in the seat cavity, and one side of the wheel body abuts against the built-in sealing plug to seal the opening at one end of the seat cavity.
[0010] Optimally, the opening at one end of the seat cavity forms built-in gaps with the wheel body at multiple positions, the built-in gaps are located in the inner circle of the built-in sealing plug, and the multiple built-in gaps are connected in sequence from the outside to the middle of the seat cavity.
[0011] Optimally, at least one of the seat cavity and the wheel body is provided with an annular liquid conducting groove on the facing side, wherein the liquid conducting groove of one forms the built-in gap with the other; and the notches of some of the liquid conducting grooves face the built-in sealing plug.
[0012] Optimally, the plurality of liquid-conducting grooves are distributed in sequence from the outside to the middle of the seat cavity.
[0013] Preferably, the shell cavity is provided with a built-in drain port on the outer ring of the built-in sealing plug.
[0014] Preferably, the wheel housing is provided with a liquid inlet, and the liquid inlet partially exposes the wire drive slot; the inner diameter of the liquid inlet gradually decreases from the outside to the inside, and is connected to the wire drive slot at the smallest inner diameter.
[0015] It can be optimized to further include: bearings and thread locks;
[0016] One or more bearings are installed in the housing cavity;
[0017] The wheel body is provided with a wheel axle and a wheel disc, one end of the wheel axle is connected to one side of the wheel disc, and the other end of the wheel axle is matched with the inner ring of the bearing; the outer ring of the bearing is fixed to the seat cavity; the wheel disc covers the opening of the seat cavity, and the wheel disc is provided with the wire drive groove;
[0018] The seat cavity is provided with a cavity baffle; the threaded hole of the threaded locking element is threadedly matched with the external thread structure of the wheel shaft, and the threaded locking element is pressed against the inner ring of the bearing; the outer ring of the bearing is pressed toward the cavity baffle.
[0019] It can be optimized to further include: an end cover;
[0020] The cavity baffle is disposed at one end opening of the seat cavity, and the end cover is detachably mounted at the other end opening of the seat cavity, and the end cover presses the outer ring of the bearing against the cavity baffle.
[0021] An electric spark wire cutting machine uses the above-mentioned water accumulation-proof cutting guide wheel.
[0022] Compared with the prior art, one of the above technical solutions has the following beneficial effects:
[0023] The present solution provides a cutting guide wheel that prevents water accumulation, which has a wire drive groove on the wheel surface of the wheel body, and the inner wall of the shell cavity is designed to form a wheel surface gap with the wheel body. The shell cavity is also provided with an external drain port on one side of the wheel body, thereby forming a diversion path in the wheel body, which can transfer the coolant to the outside, solving the problem of water accumulation in the cutting guide wheel after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a schematic structural diagram of one embodiment of a cutting guide wheel;
[0025] Figure 2 is a schematic cross-sectional structure diagram of one embodiment of a cutting guide wheel;
[0026] Figure 3 yes Figure 2 Enlarged view of part A in the middle;
[0027] Figure 4 yes Figure 2 Enlarged view of middle part B;
[0028] in:
[0029] Wheel seat 1, wheel shell 2, wheel body 3; built-in sealing plug 4; bearing 5, thread lock 6; end cover 7;
[0030] Seat cavity 11; internal gap 12; liquid guide groove 111; cavity baffle 112;
[0031] Shell cavity 21, wheel surface gap 22; external drain port 23; internal drain port 24; liquid inlet 25;
[0032] Line drive slot 30; axle 31, wheel disc 32. DETAILED DESCRIPTION
[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0034] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.
[0035] like Figure 1-4 , a water-proof cutting guide wheel, comprising: a wheel seat 1, a wheel shell 2 and a wheel body 3;
[0036] The shell cavity 21 of the wheel shell 2 is sleeved on the outer side of the wheel seat 1; the wheel seat 1 is provided with a seat cavity 11; the wheel body 3 is rotatably limited in the seat cavity 11; one side of the wheel body 3 covers the opening of the seat cavity 11; the wheel surface of the wheel body 3 is provided with a wire drive groove 30; the shell cavity 21 extends to the wheel body 3, and the inner wall of the shell cavity 21 forms a wheel surface gap 22 with the wheel surface of the wheel body 3; the shell cavity 21 is provided with a plurality of external drainage outlets 23 on the other side of the wheel body 3.
[0037] The present solution provides a cutting guide wheel that prevents water accumulation, which has a wire drive groove 30 on the wheel surface of the wheel body 3, and the inner wall of the shell cavity 21 is designed to form a wheel surface gap 22 with the wheel body 3. The shell cavity 21 is also provided with an external drain port 23 on one side of the wheel body 3, thereby forming a diversion path in the wheel body 3, which can transfer the coolant to the outside, solving the problem of water accumulation in the cutting guide wheel after long-term use.
[0038] Specifically, the cutting guide wheel is mainly used in the electric spark wire cutting machine. When it is necessary to drive the cutting guide wheel to rotate, it is only necessary to wind the copper wire 8 around the wire driving groove 30 of the cutting guide wheel. The winding and unwinding of the copper wire 8 can drive the wire driving groove 30 to rotate, thereby driving the wheel body 3 to rotate; and under the rotation of the cutting guide wheel, it is necessary to use coolant to cool the cutting guide wheel, especially the part of the wheel body 3; for this reason, the present scheme provides a wire driving groove 30 on the wheel surface of the wheel body 3, and the wire driving groove 30 on the wheel surface of the wheel body 3 is used to accommodate the copper wire 8. At the same time, the wheel body 3 also forms a wheel surface gap 22 with the inner wall of the shell cavity 21 on the wheel surface; the present scheme can set the output position of the coolant on the wheel surface of the wheel body 3 The top of the wire drive groove 30 is close to the output position of the coolant; after the coolant falls into the wire drive groove 30, the coolant can be diverted along the length direction of the wire drive groove 30, and the wire drive groove 30 and its copper wire 8 can be cooled; at the same time, when the coolant can overflow outside the wire drive groove 30, the coolant is transferred from the wheel surface of the wheel body 3 to the wheel surface gap 22, and then transferred to one side of the wheel body 3; the coolant flows through one side of the wheel body 3, thereby cooling one side of the wheel body 3; the shell cavity 21 is provided with a plurality of external drainage ports 23 on one side of the wheel body 3, and the external drainage ports 23 can divert the coolant on one side of the wheel body 3 to the outside, thereby preventing the coolant from accumulating in the cutting guide wheel. Therefore, this solution solves the problem that the cutting guide wheel is prone to water accumulation after long-term use.
[0039] It can be optimized to further include: a built-in sealing plug 4;
[0040] The built-in sealing plug 4 is disposed in the seat cavity 11 , and one side of the wheel body 3 abuts against the built-in sealing plug 4 , so that the opening at one end of the seat cavity 11 is sealed.
[0041] In this solution, a built-in sealing plug 4 can be set between the opening at one end of the seat cavity 11 and one side of the wheel body 3. When one side of the wheel body 3 is against the built-in sealing plug 4, the gap between the seat cavity 11 and the wheel body 3 can be filled, so that the gap between the two is sealed, which can effectively prevent the coolant from entering the seat cavity 11 from the opening of the seat cavity 11, thereby preventing the coolant from accumulating in the seat cavity 11.
[0042] Optimally, the opening at one end of the seat cavity 11 forms a built-in gap 12 with the wheel body 3 at multiple positions, and the built-in gap 12 is located in the inner circle of the built-in sealing plug 4. Multiple built-in gaps 12 are connected in sequence from the outside to the middle of the seat cavity 11.
[0043] In some embodiments, the built-in sealing plug 4 may become loose after long-term use, so this embodiment reserves a built-in gap 12; specifically, the opening at one end of the seat cavity 11 forms a built-in gap 12 with the wheel body 3, and the built-in gap 12 is mainly located in the inner circle of the built-in sealing plug 4; when the coolant passes through the built-in sealing plug 4, it will be placed in the inner circle of the built-in sealing plug 4; because the built-in gaps 12 are arranged and connected from the outside to the middle of the seat cavity 11, the coolant first flows from the outside to the inside to the middle of the seat cavity 11, and then flows from the inside to the outside, and passes through the built-in sealing plug 4, and finally discharged outside the cutting guide wheel. In this way, this embodiment has two paths for discharging coolant, one is the channel formed between the wheel surface gap 22, one side of the wheel body 3 and the external drain port 23, and the other is the channel formed between the wheel surface gap 22 and the built-in gap 12. In this way, this embodiment can effectively drain the coolant, solving the problem of easy water accumulation in the cutting guide wheel after long-term use.
[0044] Optimally, at least one of the seat cavity 11 and the wheel body 3 is provided with an annular liquid conducting groove 111 on the facing side, wherein the liquid conducting groove 111 of one forms the built-in gap 12 with the other; and the notch of part of the liquid conducting groove 111 faces the built-in sealing plug 4.
[0045] The liquid guide groove 111 can effectively increase the residence time of the coolant at a certain position. The coolant that crosses the built-in sealing plug 4 needs to fill the outside of the liquid guide groove 111 before overflowing outside the liquid guide groove 111, and then transfer to another liquid guide groove 111 through the built-in gap 12. Therefore, it is increasingly difficult for the coolant to pass through the liquid guide grooves 111 from top to bottom. When the coolant is placed in a liquid guide groove 111, if the coolant does not fill the liquid guide groove 111, it will be guided to the bottom of the liquid guide groove 111 along the annular structure of the liquid guide groove 111, shortening the transfer path of the coolant inside the wheel seat 1, and avoiding the accumulation of the coolant inside the wheel seat 1.
[0046] Optimally, the plurality of liquid-conducting grooves 111 are distributed sequentially from the outside to the middle of the seat cavity 11 .
[0047] Since the opening of the liquid guide groove 111 faces the built-in sealing plug 4 and the liquid guide grooves 111 are distributed in sequence from the outside to the middle of the seat cavity 11, when the coolant enters from the outermost liquid guide groove 111 from top to bottom, if it does not overflow from the liquid guide groove 111, it will flow along the annular liquid guide groove 111 and finally be output from the bottom of the liquid guide groove 111; in this way, after a small amount of coolant passes through the built-in sealing plug 4, it will not directly flow through the interior of the wheel seat 1, which increases the difficulty of entering the middle of the wheel seat 1, thereby preventing the coolant from accumulating in the middle of the wheel seat 1 and affecting the mechanical structure inside the seat cavity 11.
[0048] Optimally, the shell cavity 21 is provided with a built-in drain port 24 on the outer ring of the built-in sealing plug 4 .
[0049] The built-in drain port 24 is arranged close to the built-in sealing plug 4, so that the built-in drain port 24 can discharge the coolant outside the cutting guide wheel at the discharge end of the coolant.
[0050] Optimally, the wheel housing 2 is provided with a liquid inlet 25, and the liquid inlet 25 partially exposes the wire drive slot 30; the inner diameter of the liquid inlet 25 gradually decreases from the outside to the inside, and is connected to the wire drive slot 30 at the smallest inner diameter.
[0051] The wheel housing 2 is provided with a liquid inlet 25 which can be used to lead the copper wire 8 of the wire drive groove 30 out of the cutting guide wheel, and can also be used to input coolant. The inner diameter of the liquid inlet 25 gradually decreases from the outside to the inside, and the formed inclined surface can guide the coolant into the wire drive groove 30, thereby increasing the probability of the coolant contacting the wire drive groove 30, improving the utilization rate of the coolant, and avoiding splashing of the coolant.
[0052] It can be optimized to further include: a bearing 5 and a thread locking member 6;
[0053] One or more bearings 5 are installed in the housing 11;
[0054] The wheel body 3 is provided with a wheel axle 31 and a wheel disc 32, one end of the wheel axle 31 is connected to one side of the wheel disc 32, and the other end of the wheel axle 31 is matched with the inner ring of the bearing 5; the outer ring of the bearing 5 is fixed to the seat cavity 11; the wheel disc 32 covers the opening of the seat cavity 11, and the wheel disc 32 is provided with the wire drive slot 30;
[0055] The seat cavity 11 is provided with a cavity baffle 112 ; the threaded hole of the threaded locking member 6 is threadedly matched with the external thread structure of the wheel axle 31 , and the threaded locking member 6 is pressed against the inner ring of the bearing 5 ; the outer ring of the bearing 5 is pressed toward the cavity baffle 112 .
[0056] The wheel body 3 is provided with a wheel axle 31 and a wheel disc 32. The wheel axle 31 can be inserted into the seat cavity 11 and connected to the bearing 5 of the seat cavity 11, so that the wheel body 3 can be rotatably limited in the seat cavity 11. This solution can further improve the fixing stability of the wheel body 3 through the threaded lock 6, so that the wheel disc 32 can fully press the opening of the seat cavity 11 or the built-in sealing plug 4, and when the outer ring of the bearing 5 is actively or passively pressed against the cavity baffle 112, the position of the bearing 5 is fixed; at the same time, the wheel axle 31 of this solution can be inserted into the inner ring of the bearing 5, and cooperate with the external thread structure of the wheel axle 31 through the threaded hole of the threaded lock 6; when the thread is fully matched, the threaded lock 6 is pressed against the inner ring of the bearing 5, and the positions of the wheel axle 31 and the inner ring of the bearing 5 are relatively fixed, so that the position of the wheel body 3 is fixed; thereby, it is convenient to disassemble the wheel body 3 and improve the fixing stability of the wheel body 3. At the same time, since the outer ring of the bearing 5 of the present solution is pressed toward the cavity baffle 112, the present solution can use either a single bearing 5 or a double bearing 5, and the double bearings 5 can be arranged close to each other or at intervals (i.e., the two bearings 5 are separated by an intermediate spacer 33 to extend the spacing between the bearings 5 and make the movement of different positions of the axle 31 smoother).
[0057] It can be optimized to further include: an end cover 7;
[0058] The cavity baffle 112 is disposed at one end opening of the housing cavity 11 , and the end cover 7 is detachably mounted at the other end opening of the housing cavity 11 . The end cover 7 presses the outer ring of the bearing 5 against the cavity baffle 112 .
[0059] In this solution, the bearing 5 can be installed in the seat cavity 11 first, so that the bearing 5 is against the cavity baffle 112, and then the wheel body 3 is installed, so that the wheel shaft 31 of the wheel body 3 passes through the inner ring of the bearing 5, and then the thread lock 6 is installed on the external thread structure of the wheel shaft 31, so that the thread lock 6 is against the inner ring of the bearing 5, and the position installation of the wheel body 3 is completed; in this solution, the step of installing the end cover 7 can be preferably used as the last installation step, and the end cover 7 can be detachably installed in the opening of the seat cavity 311 away from the cavity baffle 112, which presses the outer ring of the bearing 5 against the cavity baffle 112, so that the position of the outer ring of the bearing 5 is locked. When the end cover 7 needs to be removed, the tool can be inserted into the opening of the seat cavity 11 to remove the end cover 7. Among them, the end cover 7 is installed at the opening of the seat cavity 11, and it can be a well-known detachable installation method, as long as the outer ring position of the bearing 5 is pressed against the cavity baffle 112, threaded fixation (for example, the outer thread of the end cover 7 cooperates with the inner thread of the seat cavity 11), screw fixation (for example, screw fixation to the seat cavity 11), clamp fixation (for example, the clamp end cover 7 of the clamp is locked to the seat cavity 11), mechanical device clamping (for example, by a cylinder or oil cylinder), etc.
[0060] An electric spark wire cutting machine uses the above-mentioned water accumulation-proof cutting guide wheel.
[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A cutting guide wheel for preventing water accumulation, characterized in that: include: Wheel seat, wheel shell and wheel body; The shell cavity of the wheel shell is sleeved on the outer side of the wheel seat; the wheel seat is provided with a seat cavity; the wheel body is rotatably limited in the seat cavity; one side of the wheel body covers the opening of the seat cavity; the wheel surface of the wheel body is provided with a wire drive groove; the shell cavity extends to the wheel body, and the inner wall of the shell cavity forms a wheel surface gap with the wheel surface of the wheel body; the shell cavity is provided with a plurality of external drainage outlets on the other side of the wheel body.
2. The water-proof cutting guide wheel according to claim 1, characterized in that: Also includes: Built-in sealing plug; The built-in sealing plug is arranged in the seat cavity, and one side of the wheel body abuts against the built-in sealing plug to seal the opening at one end of the seat cavity.
3. The water-proof cutting guide wheel according to claim 2, characterized in that: The opening at one end of the seat cavity forms built-in gaps with the wheel body at multiple positions, and the built-in gaps are located in the inner circle of the built-in sealing plug. The multiple built-in gaps are connected in sequence from the outside to the middle of the seat cavity.
4. The water-proof cutting guide wheel according to claim 3, characterized in that: At least one of the seat cavity and the wheel body is provided with an annular liquid conducting groove on a facing surface, wherein the liquid conducting groove of one forms the built-in gap with the other; and the notches of some of the liquid conducting grooves face the built-in sealing plug.
5. The water-proof cutting guide wheel according to claim 4, characterized in that: The plurality of liquid-conducting grooves are distributed in sequence from the outside to the middle of the seat cavity.
6. A water-proof cutting guide wheel according to any one of claims 2 to 5, characterized in that: The shell cavity is provided with a built-in drain port on the outer ring of the built-in sealing plug.
7. A water-proof cutting guide wheel according to any one of claims 1 to 5, characterized in that: The wheel housing is provided with a liquid inlet, and the liquid inlet partially exposes the wire drive groove; the inner diameter of the liquid inlet gradually decreases from the outside to the inside, and is connected to the wire drive groove at the smallest inner diameter.
8. A water-proof cutting guide wheel according to any one of claims 1 to 5, characterized in that: Also includes: bearings and thread locks; One or more bearings are installed in the housing cavity; The wheel body is provided with a wheel axle and a wheel disc, one end of the wheel axle is connected to one side of the wheel disc, and the other end of the wheel axle is matched with the inner ring of the bearing; the outer ring of the bearing is fixed to the seat cavity; the wheel disc covers the opening of the seat cavity, and the wheel disc is provided with the wire drive groove; The seat cavity is provided with a cavity baffle; the threaded hole of the threaded locking element is threadedly matched with the external thread structure of the wheel shaft, and the threaded locking element is pressed against the inner ring of the bearing; the outer ring of the bearing is pressed toward the cavity baffle.
9. The water-proof cutting guide wheel according to claim 8, characterized in that: Also includes: End caps; The cavity baffle is disposed at one end opening of the seat cavity, and the end cover is detachably mounted at the other end opening of the seat cavity, and the end cover presses the outer ring of the bearing against the cavity baffle.
10. An electric spark wire cutting machine, characterized in that: Use the water accumulation-proof cutting guide wheel described in any one of claims 1 to 9.