Guide wheel structure and wire cutting machine

Abstract

The utility model provides a guide wheel structure and a wire cutting machine. The guide wheel structure comprises a driving device, a limiting device, a deflection device, a frame, a base, a switch box, a copper bar and a guide wheel. A driving device and a limiting device are installed on the frame, the limiting device is arranged on the side face of the driving device, the stroke is limited through the limiting device, and the driving device is connected with the base and drives the base and a deflection device, a switch box, a copper bar and a guide wheel which are installed on the base to move linearly. The switch box is provided with two copper bars, a gap is arranged between the two copper bars, and the guide wheel is rotatably connected with a deflection device and deflects through the deflection device. The deflection device can adapt to the change of the diamond wire outlet angle, and the driving device is matched with the limiting device to adapt to the change of the diamond wire outlet position.

Description

Technical Field

[0001] The utility model relates to the field of wire cutting machine structure, and specifically, to a guide wheel structure and a wire cutting machine. Background Technology

[0002] Currently, the multi-wire cutting method is mostly used to cut the material to be processed into a sheet product with a certain thickness. The wire cutting machine used in the wire cutting method is provided with a roller, a diamond wire, a guide wheel and other structures. The diamond wire will be wound on a roller with a certain length and diameter, and one end of the diamond wire will be turned through the guide wheel. In actual use, since the diamond wire is wound on the roller, the diameter of the roller will be increased in disguise, so that the outlet angle changes, and the roller has a certain length so that the diamond wire will be discharged from any position in the length direction of the roller, which means that the outlet direction of the diamond wire is constantly changing relative to the position of the guide wheel. If the guide wheel cannot constantly adapt to this change, it is likely to cause the diamond wire to be derailed from the guide wheel. Therefore, it is necessary to provide a guide wheel structure that can adapt to the change of the outlet direction of the diamond wire. Patent document CN104972567A provides a guide wheel in a multi-wire cutting machine to prevent the two ends of the steel wire from sliding off the guide wheel. It forcibly restricts the derailment by increasing the height of both sides of the guide wheel, which is different from the present application. Patent document CN103950120A provides a six-guide wheel multi-wire cutting machine, which fails to solve the problem of wire derailment. Contents of utility model

[0003] Aiming at the defects in the prior art, the purpose of this utility model is to provide a guide wheel structure and a wire cutting machine.

[0004] A guide wheel structure provided by the utility model includes: a driving device, a limiting device, a deflection device, a frame, a base, a switch box, a copper rod and a guide wheel;

[0005] The frame is provided with a driving device and a limiting device, the limiting device is arranged on the side of the driving device and the travel is limited by the limiting device, the driving device is connected to the base and drives the base and the deflection device, switch box, copper rod and guide wheel installed on the base to move linearly;

[0006] Two copper rods are installed on the switch box and a gap is set between the two copper rods. The guide wheel is rotatably connected to the deflection device and deflection is achieved through the deflection device;

[0007] The deflection device comprises: a rotating seat and a first rotating shaft;

[0008] The first rotating shaft is connected to the base, and the rotating seat is rotatably connected to the first rotating shaft;

[0009] The guide wheel is rotatably mounted on one end of the connecting member via a second rotating shaft, and the other end of the connecting member is fixedly mounted on the rotating seat.

[0010] Preferably, the driving device includes: a motor, a coupling, a connecting sleeve, a bushing, a lead screw, and a transmission shaft;

[0011] The motor is connected to the coupling and then to the lead screw, driving the lead screw to rotate about its axis. The bushing is mounted on the lead screw and moves axially along the lead screw by the rotation of the lead screw;

[0012] One end of the connecting sleeve is connected to the bushing, and the other end is connected to the transmission shaft. The transmission shaft moves together with the bushing.

[0013] Preferably, the limiting device includes: a first limit switch, an L-shaped iron sheet, and a second limit switch;

[0014] The L-shaped iron sheet is mounted on the connecting sleeve and moves together with the connecting sleeve. The first limit switch and the second limit switch are respectively arranged at both ends of the L-shaped iron sheet along the moving direction.

[0015] Preferably, both ends of the frame are respectively a top plate and a bottom plate, and the top plate and the bottom plate are connected by side plates;

[0016] The motor and the coupling are mounted on the bottom plate. One end of the lead screw is rotatably connected to the top plate, and the other end passes through the bottom plate and is connected to the coupling. Both ends of the transmission shaft pass through the top plate and the bottom plate respectively and are slidably connected to the top plate and the bottom plate. The connecting sleeve and the bushing are located between the top plate and the bottom plate;

[0017] The first limit switch and the second limit switch are respectively mounted at positions near both ends of the side plate.

[0018] Preferably, a dust cover is mounted on the top plate. The dust cover is located at the place where the transmission shaft passes through the top plate. The transmission shaft passes through the dust cover and is connected to the base.

[0019] Preferably, the first limit switch, the second limit switch, and the switch box are connected to a control device, and the control device is connected to the motor.

[0020] Preferably, the plane where the deflection direction of the deflection device is located is perpendicular to the linear movement direction of the driving device.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] 1. The present application adopts a deflection device to adapt to the change of the wire outlet angle of the diamond wire, and adopts a driving device in cooperation with a limiting device to adapt to the change of the wire outlet position of the diamond wire;

[0023] 2. The diamond wire of the present application does not need to forcibly adapt to the position of the guide wheel, avoiding excessive force and friction between the diamond wire and the guide wheel, and can extend the service life of the diamond wire and the guide wheel. Description of the Drawings

[0024] Other features, objects, and advantages of the present utility model will become more apparent from the following detailed description of non - restrictive embodiments read in conjunction with the accompanying drawings:

[0025] Figure 1 It is a three - dimensional structure schematic diagram of the guide wheel structure;

[0026] Figure 2 It is the front view of the guide wheel structure;

[0027] Figure 3 It is the bottom view of the guide wheel structure;

[0028] As shown in the figure:

[0029] Detailed Embodiment

[0030] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all fall within the protection scope of the present utility model.

[0031] This embodiment provides a guide wheel structure for a wire cutting machine, which is characterized by including: a driving device, a limiting device, a deflecting device, a frame 5, a dust cover 11, a base 12, a switch box 13, a copper bar 14, a second rotating shaft 17, a guide wheel 18, and a connecting member 19; wherein, the driving device includes: a motor 1, a coupling 2, a connecting sleeve 3, a bushing 4, a lead screw 9, and a transmission shaft 10; the limiting device includes: a first limit switch 6, an L - shaped iron sheet 7, and a second limit switch 8; the deflecting device includes: a rotating seat 15 and a first rotating shaft 16.

[0032] As Figures 1-3 shown, both ends of the frame 5 are respectively a top plate and a bottom plate, and the top plate and the bottom plate are connected by side plates; the motor 1 and the coupling 2 are installed on the bottom plate, one end of the lead screw 9 is rotatably connected to the top plate, and the other end passes through the bottom plate and then connects to the coupling 2, both ends of the transmission shaft 10 pass through the top plate and the bottom plate respectively and are slidably connected to the top plate and the bottom plate, the connecting sleeve 3 and the bushing 4 are located between the top plate and the bottom plate, and the first limit switch 6 and the second limit switch 8 are respectively installed at positions near both ends of the side plates.

[0033] The motor 1 is connected to the coupling 2 and then to the lead screw 9 to drive the lead screw 9 to rotate about its axis. The bushing 4 is installed on the lead screw 9 and moves axially along the lead screw 9 by the rotation of the lead screw 9. One end of the connecting sleeve 3 is connected to the bushing 4 and the other end is connected to the transmission shaft 10. The transmission shaft 10 moves together with the bushing 4. A dust cover 11 is installed on the top plate. The dust cover 11 is located at the place where the transmission shaft 10 passes through the top plate. After passing through the dust cover 11, the transmission shaft 10 is connected to the base 12.

[0034] The transmission shaft 10 drives the base 12 and the deflection device, switch box 13, copper bar 14 and guide wheel 18 installed on the base 12 to move linearly. The first rotating shaft 16 is connected to the base 12, and the rotating seat 15 is rotatably connected to the first rotating shaft 16. The guide wheel 18 is rotatably installed at one end of the connecting member 19 through the second rotating shaft 17, and the other end of the connecting member 19 is fixedly installed on the rotating seat 15.

[0035] The L-shaped iron sheet 7 is installed on the connecting sleeve 3 and moves together with the connecting sleeve 3. The two ends of the L-shaped iron sheet 7 along the moving direction are respectively provided with a first limit switch 6 and a second limit switch 8. Two copper bars 14 are installed on the switch box 13 and a gap is provided between the two copper bars 14. The guide wheel 18 is rotatably connected to the deflection device and deflects through the deflection device. The first limit switch 6, the second limit switch 8 and the switch box 13 are connected to the control device, and the control device is connected to the motor 1.

[0036] In an embodiment, the plane where the deflection direction of the deflection device is located is perpendicular to the linear moving direction of the driving device.

[0037] Working principle:

[0038] The diamond wire of the wire cutting machine is wound on the drum. When the number of layers of the wound diamond wire is relatively large, it will equivalently increase the diameter of the drum, that is, affect the angle between the wire outlet direction of the diamond wire and the guide wheel. At the same time, due to the relatively long length of the drum, the diamond wire will exit from any position along this length, thus affecting the position of the diamond wire outlet relative to the guide wheel. Considering these two situations together, it is very easy for the wire to come off.

[0039] In this embodiment, first, the motor 1 drives the lead screw 9 to rotate. The rotation of the lead screw 9 drives the bushing 4 thereon to move linearly. The bushing 4 drives the transmission shaft 10 to move linearly through the connecting sleeve 3. The transmission shaft 10 drives the base 12 connected thereto and structures such as the guide wheel 18 on the base 12 to move, so that the guide wheel 18 can adapt to the change of the diamond wire outlet position through the change of its position.

[0040] In actual work, a groove is provided in the middle of the circumferential side of the guide wheel 18. The diamond wire falls into the groove. When the wire outlet angle of the diamond wire changes, the diamond wire will exert pressure on the two side walls of the groove. Under the action of the pressure, the guide wheel 18 and the connected rotating seat 15 will deflect adaptively through the first rotating shaft 16 to avoid wire detachment caused by excessive change in the wire outlet angle of the diamond wire.

[0041] In addition, the diamond wire passes between two copper bars 14. When the position change of the guide wheel 18 cannot adapt to the change in the wire outlet position of the diamond wire due to reasons such as deviation, the diamond wire will touch one of the two copper bars 14. The switch box 13 transmits a signal to the control device according to the touched copper bar 14, and the control device adjusts the working state of the motor according to the signal. The first limit switch 6 and the second limit switch 8 are electromagnetic induction devices. When the L-shaped iron sheet 7 passes by, the corresponding first limit switch 6 or second limit switch 8 transmits a signal to the control device, and the control device adjusts the working state of the motor according to the signal.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 should not be construed as a limitation to the present application.

[0043] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined arbitrarily.

Claims

1. A guide wheel structure, characterized in that: include: A driving device, a limiting device, a deflecting device, a frame (5), a base (12), a switch box (13), a copper rod (14) and a guide wheel (18); The frame (5) is provided with a driving device and a limiting device, the limiting device is provided on the side of the driving device and the travel is limited by the limiting device, the driving device is connected to the base (12) and drives the base (12) and the deflection device, the switch box (13), the copper rod (14) and the guide wheel (18) installed on the base (12) to move linearly; Two copper rods (14) are installed on the switch box (13) and a gap is set between the two copper rods (14); the guide wheel (18) is rotatably connected to the deflection device and realizes deflection through the deflection device; The deflection device comprises: a rotating seat (15) and a first rotating shaft (16); The first rotating shaft (16) is connected to the base (12), and the rotating seat (15) is rotatably connected to the first rotating shaft (16); The guide wheel (18) is rotatably mounted on one end of a connecting member (19) via a second rotating shaft (17), and the other end of the connecting member (19) is fixedly mounted on the rotating seat (15).

2. The guide wheel structure according to claim 1, characterized in that: The driving device comprises: a motor (1), a coupling (2), a connecting sleeve (3), a shaft sleeve (4), a screw rod (9) and a transmission shaft (10); The motor (1) is connected to the coupling (2) and then connected to the screw rod (9) to drive the screw rod (9) to rotate around the axis, and the sleeve (4) is installed on the screw rod (9) and realizes axial movement along the screw rod (9) through the rotation of the screw rod (9); One end of the connecting sleeve (3) is connected to the shaft sleeve (4), and the other end is connected to the transmission shaft (10); the transmission shaft (10) moves together with the shaft sleeve (4).

3. The guide wheel structure according to claim 2, characterized in that: The limit device comprises: a first limit switch (6), an L-shaped iron sheet (7) and a second limit switch (8); The L-shaped iron sheet (7) is mounted on the connecting sleeve (3) and moves together with the connecting sleeve (3); a first limit switch (6) and a second limit switch (8) are respectively arranged at two ends of the L-shaped iron sheet (7) along the moving direction.

4. The guide wheel structure according to claim 3, characterized in that: The two ends of the frame (5) are respectively a top plate and a bottom plate, and the top plate and the bottom plate are connected by a side plate; The motor (1) and the coupling (2) are mounted on a bottom plate, one end of the screw rod (9) is rotatably connected to the top plate, and the other end passes through the bottom plate and is connected to the coupling (2), both ends of the transmission shaft (10) pass through the top plate and the bottom plate respectively and are slidably connected to the top plate and the bottom plate, and the connecting sleeve (3) and the shaft sleeve (4) are located between the top plate and the bottom plate; The first limit switch (6) and the second limit switch (8) are respectively installed at positions close to both ends of the side plate.

5. The guide wheel structure according to claim 4, characterized in that: A dust cover (11) is installed on the top plate, and the dust cover (11) is located at the position where the transmission shaft (10) passes through the top plate. The transmission shaft (10) is connected to the base (12) after passing through the dust cover (11).

6. The guide wheel structure according to claim 3, characterized in that: The first limit switch (6), the second limit switch (8) and the switch box (13) are connected to a control device, and the control device is connected to the motor (1).

7. The guide wheel structure according to claim 1, characterized in that: The plane where the deflection direction of the deflection device is located is perpendicular to the linear movement direction of the driving device.

8. A wire cutting machine, characterized in that: The guide wheel structure according to any one of claims 1 to 7 is adopted.

9. The wire cutting machine according to claim 8, characterized in that: include: Rollers and diamond wires; The diamond wire is wound on the drum, and one end of the diamond wire passes through between two copper rods (14) and then turns through the guide wheel (18).

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