Protective wire cutting machine guide wheel rubber sheet replacing device

Abstract

The utility model relates to the technical field of wire cutting machines, in particular to a protective type wire cutting machine guide wheel rubber sheet replacing device which aims at solving the problem that in the prior art, an aluminum disc and a rubber sheet are prone to being damaged due to the fact that the guide wheel rubber sheet is manually replaced, and particularly comprises a bottom plate, a top plate and a connecting plate. A horizontal rotary disc is rotationally arranged between the bottom plate and the top plate, at least two working hole sites are formed in the rotary disc in the circumferential direction of the rotary disc, a positioning ring used for containing a guide wheel is coaxially arranged in each working hole site, and the inner edge of each positioning ring is provided with a positioning hole corresponding to the outer diameter of the guide wheel. The peripheral wall of the positioning hole extends inwards to form a convex ring used for supporting and supporting the guide wheel rubber sheet, and the width of the convex ring is not larger than that of the guide wheel rubber sheet; in the process of replacing the rubber sheet of the guide wheel, the aluminum disc and the rubber sheet can be effectively prevented from being damaged, meanwhile, potential safety hazards caused by falling of the aluminum disc are prevented, and a good protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting machines, in particular to a protective wire cutting machine guide wheel rubber replacement device. Background Art

[0002] The wire cutting machine is an electric machining machine that uses the principle of spark discharge for processing. One of its core components is the guide wheel. The guide wheel includes an inner aluminum disk and an outer rubber layer. The rubber layer is fixed to the outer circumference of the aluminum disk through a vulcanization process to guide the movement of the electrode wire (i.e., metal wire). During the processing, the electrode wire is limited in the groove on the outer circumference of the rubber layer, and the workpiece is cut through spark discharge.

[0003] However, as the production process continues, the guide wheel rubber is easily stretched and deformed due to the reaction force of cutting, which in turn affects the cutting accuracy. Therefore, the guide wheel rubber needs to be replaced regularly to ensure the processing quality. At present, the factory generally uses manual knocking to separate the aluminum plate and the rubber. This method is inefficient and easily damages the bearing on the inner edge of the aluminum plate, increasing production costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a highly efficient and safe protective wire-cutting machine guide wheel rubber replacement device in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protective wire cutting machine guide wheel rubber replacement device, which is characterized by:

[0007] It includes a bottom plate, a top plate and a connecting plate, wherein the top plate is fixedly mounted on the bottom plate through the connecting plate.

[0008] A horizontal rotating disk is rotatably provided between the bottom plate and the top plate, and at least two working holes are opened on the rotating disk along its circumference, and a positioning ring for placing the guide wheel is coaxially provided in each working hole, and the inner edge of the positioning ring is set as a positioning hole corresponding to the outer diameter of the guide wheel, and a convex ring for supporting and holding the guide wheel rubber is extended inwardly from the peripheral wall of the positioning hole, and the width of the convex ring is not greater than the width of the guide wheel rubber;

[0009] A pressing mechanism that cooperates with the guide wheel on the positioning ring is provided on the top plate, and a pressure plate for separating the guide wheel aluminum disc from the guide wheel rubber is connected to the output end of the pressing mechanism, and the diameter of the pressure plate is not larger than the diameter of the guide wheel aluminum disc. Each positioning ring can rotate with the rotating disk to be coaxial and collinear with the pressure plate, and an anti-slipping piece is provided on the positioning ring, and the anti-slipping piece is used to cooperate with the rotating disk to limit the positioning ring from downwardly escaping from the working hole position;

[0010] A material receiving assembly that cooperates with the downward pressing mechanism is provided on the bottom plate, and the material receiving assembly includes a supporting plate arranged between the bottom plate and the turntable, and a flexible pad facing the pressure plate is provided on the supporting plate. The flexible pad is used to receive and protect the guide wheel aluminum plate that falls from under the pressure plate to prevent it from being bumped and damaged.

[0011] The technical problem to be solved by the utility model can be further achieved through the following steps: the material receiving assembly includes a lifting mechanism arranged on the base plate, the lifting mechanism is used to drive the support plate to rise and fall vertically, and an abutment member that cooperates with the support plate extends downward from the bottom of the positioning ring. When the lifting mechanism drives the support plate to rise to cooperate with the abutment member, the flexible pad and the abutment member do not interfere with each other.

[0012] The technical problem to be solved by the utility model can be further achieved through the following steps: the abutment member is specifically an abutment ring, which extends downward from the bottom of the positioning ring and has an inner diameter not less than the outer diameter of the guide wheel aluminum plate.

[0013] The technical problem to be solved by the utility model can be further achieved through the following steps: the flexible pad is a circular plate, and a limiting ring matching the inner edge of the abutment ring is provided on the outer edge of the flexible pad; a first rubber pad is provided at the lower end of the abutment ring, and a second rubber pad matching the first rubber pad is provided on the supporting plate.

[0014] The technical problem to be solved by the utility model can be further achieved through the following steps: the lifting mechanism includes a lifting cylinder installed on the base plate, columnar limiting tubes are fixedly provided on the base plate on both sides of the lifting cylinder, limiting columns that are plugged into the limiting tubes are fixed downwardly at the bottom end of the supporting plate, and a buffer component is provided in the limiting tube between the limiting column and the base plate.

[0015] The technical problem to be solved by the utility model can be further achieved through the following steps: four working holes are evenly arranged along the circumference of the turntable, and for the positioning ring in each working hole, the diameters of the positioning holes are not equal to adapt to guide wheels of different models.

[0016] The technical problem to be solved by the utility model can be further achieved through the following steps: a rotating column is vertically provided between the turntable and the base plate, the rotating column is fixedly connected to the turntable and rotatably mounted on the base plate; the pressing mechanism includes a pressing cylinder vertically mounted on the top plate, the output end of the pressing cylinder passes downward through the top plate and is connected to a pressure plate.

[0017] The technical problem to be solved by the utility model can be further achieved through the following steps: one end of the rotating column is fixedly connected to the turntable, and the other end is rotatably mounted on the base plate; a driven pulley is fixedly provided on the rotating column; a driving motor is installed on the base plate on one side of the rotating column; and an active pulley matching the driven pulley is installed on the output shaft of the driving motor.

[0018] The technical problem to be solved by the utility model can be further achieved through the following steps: one end of the rotating column is rotatably connected to the bottom plate, and the other end upwardly cooperates with the driving motor arranged on the top plate; the output shaft of the driving motor is connected to the rotating column for transmission through a reducer and a coupling; and two downward pressure cylinders are relatively arranged with the rotating column as the axis.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: through the coordinated use of the pressing mechanism and the material receiving assembly, the damage of the aluminum plate and the rubber can be effectively avoided during the replacement of the guide wheel rubber, and the safety hazard caused by the falling of the aluminum plate can be prevented, thereby achieving a good protective effect; by setting the positioning ring and the positioning hole, the device can adapt to guide wheels of different models and meet the needs of wire cutting machines of different specifications, thereby improving adaptability and flexibility of use; by setting the lifting mechanism, the positioning ring can move in the opposite direction to the pressure plate, thereby further improving the efficiency of rubber separation and ensuring the stability of the separation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the guide wheel;

[0021] Figure 2 It is a top view of embodiment 1 of the utility model;

[0022] Figure 3 for Figure 2 G-direction cross-sectional view;

[0023] Figure 4 for Figure 3 Schematic diagram of usage;

[0024] Figure 5 for Figure 4 Schematic diagram of the coordination of the central positioning ring, the rotating disk and the supporting plate;

[0025] Figure 6 It is a front view of embodiment 2 of the utility model.

[0026] In the figure: 1-bottom plate; 2-top plate; 3-connecting plate; 4-turn plate; 5-working hole; 6-positioning ring; 7-positioning hole; 8-convex ring; 9-pressure plate; 10-anti-slip member; 11-support plate; 12-flexible pad; 13-abutment ring; 14-limiting ring; 15-lifting cylinder; 16-limiting cylinder; 17-limiting column; 18-buffer component; 19-rotating column; 20-pressing cylinder; 21-driven pulley; 22-driving pulley; 23-driving motor; 24-reducer;

[0027] 25-guide wheel; 26-rubber; 27-aluminum plate. DETAILED DESCRIPTION

[0028] The specific technical solutions of the present invention are further described below so that those skilled in the art can further understand the present invention, but it does not constitute a limitation on the rights thereof.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0030] [Example 1]

[0031] Please refer to Figure 1-5 A protective wire cutting machine guide wheel rubber replacement device comprises a bottom plate 1, a top plate 2 and a connecting plate 3, wherein the top plate 2 is fixedly mounted above the bottom plate 1 through the connecting plate 3, a horizontal rotary disk 4 is rotatably arranged between the bottom plate 1 and the top plate 2, at least two working holes 5 are opened on the rotary disk 4 along its circumference, a positioning ring 6 for placing a guide wheel 25 is coaxially arranged in each working hole 5, the inner edge of the positioning ring 6 is arranged as a positioning hole 7 corresponding to the outer diameter of the guide wheel, and a convex ring 8 for supporting and holding the guide wheel rubber 26 is extended inwardly from the peripheral wall of the positioning hole 7, and the width of the convex ring 8 is not greater than the width of the guide wheel rubber 26;

[0032] A pressing mechanism cooperating with the guide wheel 25 on the positioning ring 6 is provided on the top plate 2, and a pressure plate 9 is detachably connected to the output end of the pressing mechanism, and the pressure plate 9 is used to separate the guide wheel aluminum plate 27 from the guide wheel rubber 26. The diameter of the pressure plate 9 is not larger than the diameter of the guide wheel aluminum plate 27. Each positioning ring 6 can rotate with the rotating disk 4 to be coaxial and collinear with the pressure plate 9. An anti-slipping member 10 is provided on the positioning ring 6, and the anti-slipping member 10 is used to cooperate with the rotating disk 4 to limit the positioning ring 6 from downwardly disengaging from the working hole 5;

[0033] A material receiving assembly that cooperates with the downward pressing mechanism is provided on the base plate 1, and the material receiving assembly includes a supporting plate 11 arranged between the base plate 1 and the turntable 4, and a flexible pad 12 facing the pressure plate 9 is provided on the supporting plate 11, and the flexible pad 12 is used to receive and protect the guide wheel aluminum plate 27 that falls from under the pressure plate 9 to prevent it from being bumped and damaged.

[0034] The material receiving assembly includes a lifting mechanism arranged on the base plate 1, and the lifting mechanism is used to drive the supporting plate 11 to rise and fall vertically. An abutment member that cooperates with the supporting plate 11 extends downward from the bottom of the positioning ring 6. When the lifting mechanism drives the supporting plate 11 to rise to cooperate with the abutment member, the flexible pad 12 does not interfere with the abutment member.

[0035] The above-mentioned abutment member can be a columnar structure or an annular structure. In order to ensure the contact stability between the positioning ring 6 and the support plate 11, in the present embodiment, the abutment member is specifically an abutment ring 13, which extends downward from the bottom of the positioning ring 6, and its inner diameter is not less than the outer diameter of the guide wheel aluminum disk 27, so as to ensure that when the lifting mechanism drives the support plate 11 to rise to a position matching with the abutment ring 13, the guide wheel aluminum disk 27 can smoothly pass through the abutment ring 13 and fall on the flexible pad 12, while avoiding interference with the abutment ring 13.

[0036] The above-mentioned flexible pad 12 can be a square plate, a triangular plate, a polygonal plate or other structures. In order to ensure the buffering effect, it can also cooperate with the abutment ring 13. In this embodiment, the above-mentioned flexible pad 12 is a circular plate, the center of which is concave downward, and a limit ring 14 is provided on the outer edge of the flexible pad 12 to cooperate with the inner edge of the abutment ring 13; a first rubber pad is provided at the lower end of the abutment ring 13, and a second rubber pad is provided on the support plate 11 to cooperate with the first rubber pad. The inner diameter of the limit ring 14 is equal to the outer diameter of the flexible pad 12, and the outer diameter of the limit ring 14 is equal to the inner diameter of the abutment ring 13. The limit ring 14 and the abutment ring 13 are coaxially arranged; in this way, when the support plate 11 holds up the positioning ring 6, the limit ring 14 can be inserted into the abutment ring 13 to further improve the overall stability.

[0037] The above-mentioned lifting mechanism includes a lifting cylinder 15 installed on the base plate 1, a columnar limiting tube 16 is fixedly provided on the base plate 1 on both sides of the lifting cylinder 15, a limiting column 17 plugged with the limiting tube 16 is fixed downwardly at the bottom end of the supporting plate 11, and a buffer component 18 is provided in the limiting tube 16 between the limiting column 17 and the base plate 1. The buffer component 18 can be a buffer spring or a buffer rubber pad. The output end of the lifting cylinder 15 is detachably connected to the supporting plate 11, and the buffer component 18 can raise the supporting plate 11 to facilitate the disassembly and replacement of the lifting cylinder 15.

[0038] The working hole positions 5 may be evenly arranged with four along the circumference of the turntable 4 , and the diameters of the positioning holes 7 of the positioning rings 6 in each working hole position 5 are not equal, so that different types of guide wheels 25 can be adapted.

[0039] A rotating column 19 is vertically provided between the rotary disk 4 and the bottom plate 1, the rotating column 19 is fixedly connected to the rotary disk 4 and rotatably mounted on the bottom plate 1; the pressing mechanism comprises a pressing cylinder 20 vertically mounted on the top plate 2, the output end of the pressing cylinder 20 passes through the top plate 2 downward and is connected to the pressing plate 9. In this embodiment, there is a total of one pressing cylinder 20, and correspondingly, one material receiving assembly is also provided.

[0040] One end of the rotating column 19 is fixedly connected to the turntable 4, and the other end is rotatably mounted on the bottom plate 1. A driven pulley 21 is fixedly provided on the rotating column 19, and a driving motor 23 is installed on the bottom plate 1 on one side of the rotating column 19. A driving pulley 22 matching the driven pulley 21 is installed on the output shaft of the driving motor 23. A control panel is provided on the top plate 2, and the driving motor 23, the lifting cylinder 15 and the pressing cylinder 20 are all electrically connected to the control panel.

[0041] Working principle: When in use, first install a single guide wheel on the positioning ring 6 that matches its outer diameter, with its rubber part supported on the convex ring 8 and the aluminum disc part suspended in the air, then operate the drive motor 23 through the control panel to rotate the turntable 4 to the corresponding position, so that the guide wheel moves to be coaxially aligned with the pressure plate 9, then operate the lifting cylinder 15 to work, so that the limit ring 14 and the abutment ring 13 are plugged and matched, and the support plate 11 slightly lifts the positioning ring 6 upward, and then operate the pressing cylinder 20 to move the pressure plate 9 downward and press the aluminum disc downward to separate from the rubber. At this time, the aluminum disc falls on the flexible pad 12 to avoid damage from bumps. After the aluminum disc of a guide wheel 25 is separated from the rubber, operate the lifting cylinder 15 to retract, the support plate 11 descends, the limit ring 14 is separated from the abutment ring 13, and the positioning ring 6 returns to its original position. Then operate the drive motor 23 again to rotate the turntable 4 to the next working hole 5, and take out the separated guide wheel rubber 26.

[0042] [Example 2]

[0043] Please refer to Figure 6, which is different from the embodiment 1, in order to facilitate batch operation and improve the efficiency of rubber replacement, the positioning holes 7 of the positioning rings 6 in this embodiment have the same size, one end of the rotating column 19 is rotatably connected to the bottom plate 1, and the other end upwardly cooperates with the driving motor 23 provided on the top plate 2, the output shaft of the driving motor 23 is connected to the rotating column 19 through the reducer 24 and the coupling, and the downward pressure cylinder 20 is provided with two relative to each other with the rotating column 19 as the axis. Correspondingly, two material receiving assemblies are also provided. In this way, not only the structural strength of the rotary disk 4 is effectively enhanced, but also the rubber separation operation of the two guide wheels can be performed synchronously.

[0044] Working principle: When in use, first install the four guide wheels on the four matching positioning rings 6 respectively, and then rotate the turntable 4 to the corresponding position, so that the two guide wheels are moved to be coaxially aligned with the pressure plates 9 of the two downward pressure cylinders 20. Next, operate the lifting cylinder 15 to make the limit ring 14 on the support plate 11 plug and match with the abutment ring 13 on the positioning ring 6, and the support plate 11 slightly lifts the positioning ring 6. Then, operate the two downward pressure cylinders 20 at the same time, so that the two pressure plates 9 move downward at the same time, and press the aluminum plates of the two guide wheels 25 downward until they are separated from the rubber. At this time, the aluminum plates of the two guide wheels 25 fall on the flexible pad 12 respectively, avoiding damage caused by bumps. After the aluminum plates of the two guide wheels 25 are separated from the rubber, operate the lifting cylinder 15 to retract, the support plate 11 descends, the limit ring 14 separates from the abutment ring 13, and the positioning ring 6 returns to its original position. Subsequently, the driving motor 23 is operated again to rotate the turntable 4 to the next working hole position 5, and the other two guide wheels 25 to be processed are moved to a position coaxially aligned with the pressure plate 9 of the downward pressure cylinder 20, and then the above operation is repeated until the aluminum plates and rubber of the four guide wheels 25 are completely separated.

[0045] The utility model can effectively avoid damage to the aluminum plate and the rubber during the replacement of the guide wheel rubber 26 through the coordinated use of the pressing mechanism and the material receiving assembly, and at the same time prevent the safety hazard caused by the falling of the aluminum plate, thereby achieving a good protective effect; by providing the positioning ring 6 and the positioning hole 7, the device can adapt to different models of guide wheels 25 and meet the needs of wire cutting machines of different specifications, thereby improving adaptability and flexibility of use; by providing the lifting mechanism, the positioning ring 6 can move in the opposite direction to the pressure plate 9, thereby further improving the efficiency of rubber separation and ensuring the stability of the separation process.

[0046] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of 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.

Claims

1. A protective wire-cutting machine guide wheel rubber replacement device, characterized in that: It includes a bottom plate, a top plate and a connecting plate, wherein the top plate is fixedly mounted on the bottom plate through the connecting plate. A horizontal rotating disk is rotatably provided between the bottom plate and the top plate, and at least two working holes are opened on the rotating disk along its circumference, and a positioning ring for placing the guide wheel is coaxially provided in each working hole, and the inner edge of the positioning ring is set as a positioning hole corresponding to the outer diameter of the guide wheel, and a convex ring for supporting and holding the guide wheel rubber is extended inwardly from the peripheral wall of the positioning hole, and the width of the convex ring is not greater than the width of the guide wheel rubber; A pressing mechanism that cooperates with the guide wheel on the positioning ring is provided on the top plate, and a pressure plate for separating the guide wheel aluminum disc from the guide wheel rubber is connected to the output end of the pressing mechanism, and the diameter of the pressure plate is not larger than the diameter of the guide wheel aluminum disc. Each positioning ring can rotate with the rotating disk to be coaxial and collinear with the pressure plate, and an anti-slipping piece is provided on the positioning ring, and the anti-slipping piece is used to cooperate with the rotating disk to limit the positioning ring from downwardly escaping from the working hole position; A material receiving assembly that cooperates with the downward pressing mechanism is provided on the bottom plate, and the material receiving assembly includes a supporting plate arranged between the bottom plate and the turntable, and a flexible pad facing the pressure plate is provided on the supporting plate. The flexible pad is used to receive and protect the guide wheel aluminum plate that falls from under the pressure plate to prevent it from being bumped and damaged.

2. The protective wire-cutting machine guide wheel rubber replacement device according to claim 1 is characterized by: The material receiving assembly includes a lifting mechanism arranged on the base plate, and the lifting mechanism is used to drive the support plate to rise and fall vertically. An abutment member that cooperates with the support plate extends downward from the bottom of the positioning ring. When the lifting mechanism drives the support plate to rise to cooperate with the abutment member, the flexible pad and the abutment member do not interfere with each other.

3. The protective wire-cutting machine guide wheel rubber replacement device according to claim 2 is characterized by: The abutment member is specifically an abutment ring, which extends downward from the bottom of the positioning ring and has an inner diameter that is not less than the outer diameter of the guide wheel aluminum disk.

4. The protective wire-cutting machine guide wheel rubber replacement device according to claim 3 is characterized by: The flexible pad is a circular plate, and a limiting ring matching the inner edge of the abutment ring is provided on the outer edge of the flexible pad; a first rubber pad is provided at the lower end of the abutment ring, and a second rubber pad matching the first rubber pad is provided on the supporting plate.

5. The protective wire-cutting machine guide wheel rubber replacement device according to claim 2 or 4, characterized in that: The lifting mechanism includes a lifting cylinder installed on the base plate, columnar limiting tubes are fixedly provided on the base plate on both sides of the lifting cylinder, limiting columns that are plugged into the limiting tubes are fixed downwardly at the bottom end of the supporting plate, and a buffer component is provided in the limiting tube between the limiting column and the base plate.

6. The protective wire-cutting machine guide wheel rubber replacement device according to claim 1, characterized in that: The working holes are evenly arranged with four of them along the circumference of the rotary disk, and the diameters of the positioning holes of the positioning rings in each working hole are not equal to adapt to guide wheels of different models.

7. The protective wire-cutting machine guide wheel rubber replacement device according to claim 1, characterized in that: A rotating column is vertically arranged between the rotating disk and the bottom plate, the rotating column is fixedly connected to the rotating disk and rotatably mounted on the bottom plate; the pressing mechanism comprises a pressing cylinder vertically mounted on the top plate, the output end of the pressing cylinder passes through the top plate downward and is connected to a pressing plate.

8. The protective wire-cutting machine guide wheel rubber replacement device according to claim 7, characterized in that: One end of the rotating column is fixedly connected to the turntable, and the other end is rotatably mounted on the base plate. A driven pulley is fixedly provided on the rotating column, a driving motor is installed on the base plate on one side of the rotating column, and an active pulley matching the driven pulley is installed on the output shaft of the driving motor.

9. The protective wire-cutting machine guide wheel rubber replacement device according to claim 7, characterized in that: One end of the rotating column is rotatably connected to the bottom plate, and the other end cooperates with the driving motor arranged on the top plate. The output shaft of the driving motor is connected to the rotating column for transmission through a reducer and a coupling. Two downward pressure cylinders are relatively arranged with the rotating column as the axis.

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