Wire tensioning device of broken wire detection component of multi-wire cutting machine

Abstract

The utility model discloses a multi-wire cutting machine, and particularly relates to a wire tensioning device of a broken wire detection component of the multi-wire cutting machine, which is structurally characterized in that a semicircular wheel is mounted on a rotating shaft and can rotate around the rotating shaft, a nut for fixing a nylon wire is mounted at one end of the semicircular wheel, and an ejector rod is in tangent contact with the bottom of an inclined V-shaped hole formed in the bottom of the semicircular wheel; the ejector rod is inserted into the sliding block, the spring is arranged on the ejector rod in a sleeving mode and attached to the sliding block, the sliding block is installed in the sliding rail, and the rotating shaft and the sliding rail are installed on a machine base of the multi-wire cutting machine. The tension broken line detection device has the advantages that the nylon line for tension broken line detection can always pull the torsion spring to trigger the proximity switch during equipment machining, the technical problem that an existing device is prone to false alarm is solved, the tension broken line detection device is simple in structure and high in reliability, and stability and machining efficiency of the device are improved.

Description

Technical Field

[0001] The utility model relates to a multi-wire cutting machine, in particular to a wire tensioning device for a wire breakage detection component of a multi-wire cutting machine applied to the photovoltaic and semiconductor industries. Background Art

[0002] Multi-wire cutting is a cutting and processing equipment that uses the high-speed reciprocating motion of a wire to bring abrasive into the semiconductor processing area for grinding, and cuts hard and brittle materials such as semiconductors into hundreds of thin slices at the same time. For modern large-scale production processes, high-speed and efficient processing, and reducing the auxiliary time and downtime of equipment are of great significance for improving economic benefits.

[0003] In multi-wire cutting equipment for products in industries such as photovoltaic and semiconductor, faults such as wire breakage of the metal wire greatly affect the working efficiency and processing quality of the equipment. In order to detect wire breakage during processing in a timely manner, existing traditional multi-wire cutting equipment is provided with a wire breakage detection component, such as Figure 2 As shown, it is arranged by a nylon wire near the wire mesh in the cutting area. One end of the nylon wire 10 is tied to a torsion spring 11, and the other end is fixed to the machine base after passing through the metal wire mesh in the cutting area of the equipment. The torsion spring 11 is pulled by the nylon wire 10 and is in a taut state and attached to the limit bracket 12, and this position just triggers the limit switch 13. Normally, the nylon wire pulls the torsion spring to trigger the proximity switch. When the wire breaks, the huge tension of the metal wire is released, which will break the nylon wire, and the torsion spring relaxes and moves away from the proximity switch, and the equipment alarms to indicate wire breakage. But this structure often has a problem, that is, the nylon wire is always stretched and has a tendency to gradually elongate, and the cutting fluid wets the nylon wire during the processing, which exacerbates its elongation. In this way, there is a certain possibility that the torsion spring relaxes and moves away from the proximity switch even when the metal wire does not break, resulting in false alarms and shutdowns of the equipment, seriously affecting the processing efficiency and workpiece quality. Therefore, the research and development of the wire tensioning structure for the wire breakage detection component of such equipment has become an urgent technical problem to be solved by those skilled in the art. Summary of the Invention

[0004] The utility model is to solve the above technical problems, and provides a wire tensioning device for a wire breakage detection component of a multi-wire cutting machine, which realizes that the nylon wire for tensioning and wire breakage detection during equipment processing can always pull the torsion spring to trigger the proximity switch, and solves the technical problem of easy false alarms of the existing device.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] A wire tensioning device for a wire breakage detection component of a multi-wire cutting machine has the following structure: a semi-circular wheel installed on a rotating shaft and capable of rotating around it, a nut for fixing a nylon wire is installed at one end of the semi-circular wheel, and a push rod is in tangential contact with the bottom of an inclined V-shaped hole opened at the bottom of the semi-circular wheel; the push rod is inserted into a slider, a spring is sleeved on the push rod and fits with the slider, and the slider is installed in a slide rail.

[0007] Preferably, the above-mentioned slide rail is fixed on the machine base of the multi-wire cutting machine through a limit screw.

[0008] Preferably, a groove is opened on the arc surface of the above-mentioned semi-circular wheel, and the nylon wire is arranged in the groove.

[0009] Preferably, the bottom of the above-mentioned semi-circular wheel is provided with an inclined V-shaped hole, and the bottom of the hole is a spherical surface.

[0010] Preferably, the tangential contact end of the above-mentioned push rod with the bottom of the V-shaped hole of the semi-circular wheel is hemispherical.

[0011] Preferably, a flange is provided in the middle of the above-mentioned push rod, and the spring is arranged between the flange and the slider.

[0012] Preferably, the above-mentioned nut is a wing nut.

[0013] Preferably, the above-mentioned push rod is inserted into a round hole on the slider.

[0014] Preferably, the above-mentioned rotating shaft is fixedly installed on the machine base of the multi-wire cutting machine.

[0015] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0016] The present utility model provides a wire tensioning device for a wire breakage detection component of a multi-wire cutting machine, which realizes that the nylon wire for tensioning and wire breakage detection during equipment processing can always pull the torsion spring to trigger the proximity switch, solves the technical problem of easy false alarm of existing equipment, has a simple structure, high reliability, and improves the stability and processing efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an isometric view of the present utility model.

[0018] Figure 2 is a structural schematic diagram of an existing traditional wire breakage detection device.

[0019] Figure 3 is a position structural schematic diagram of the present utility model in the whole wire breakage detection device.

[0020] Figure 4 is the front view of the present utility model when initially installed.

[0021] Figure 5This is the front view of the present utility model after being tensioned to the extreme position.

[0022] Among them: 1. Semi-circular wheel; 2. Rotating shaft; 3. Nut; 4. Thrust rod; 5. Spring; 6. Slide block; 7. Slide rail; 8. Limit screw; 9. Limit set screw; 10. Nylon thread; 11. Torsion spring; 12. Limit bracket; 13. Limit switch. Specific implementation mode

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] As Figure 1 、 Figure 4 and Figure 5 shown, a wire tensioning device for a wire breakage detection component of a multi-wire cutting machine of the present utility model has the following structure: The rotating shaft 2 is fixedly installed on the machine base of the multi-wire cutting machine. The semi-circular wheel 1 installed on the rotating shaft 2 and capable of rotating around it. The butterfly nut 3 for fixing the nylon wire 10 is installed at one end of the semi-circular wheel 1. The thrust rod 4 is in tangential contact with the bottom of the inclined V-shaped hole opened at the bottom of the semi-circular wheel 1. The thrust rod 4 is inserted into the round hole on the slide block 6. The spring 5 is sleeved on the thrust rod 4 and is in contact with the slide block 6, so that the thrust rod 4 can make an elastic reciprocating motion along the vertical direction on the slide block 6. The slide block 6 is installed in the slide rail 7 and can reciprocate freely along the horizontal direction. The slide rail 7 is fixed on the machine base of the multi-wire cutting machine through the limit screw 8.

[0025] A groove is opened on the arc surface of the above-mentioned semi-circular wheel 1, and the nylon wire 10 is arranged in the groove; the bottom of the inclined V-shaped hole opened at the bottom of the semi-circular wheel 1 is a spherical surface; the tangential contact end of the thrust rod 4 with the bottom of the V-shaped hole opened at the bottom of the semi-circular wheel 1 is a hemispherical shape; a flange is provided in the middle of the thrust rod 4, and the spring 5 is arranged between the flange and the slide block 6.

[0026] The working principle of the present utility model:

[0027] On a multi-wire cutting device, the layout of the usual wire breakage detection device is as Figure 2 shown. After installing the present utility model, as Figure 3 shown, the terminal of the nylon wire 10 is no longer fixed on the machine base, but is wound in the groove of the semi-circular wheel 1, as Figure 4 shown, and is pressed tightly by the butterfly nut 3. Figure 4This is the position of each component after the initial installation of the present utility model. On the right side of the semi-circular wheel 1, the flange of the ejector rod 4 is pushed by the compressed spring 5, and then a counterclockwise torque is provided to the semi-circular wheel 1 through the ball head of the ejector rod 4, causing the semi-circular wheel 1 to tend to rotate counterclockwise, tightening the nylon thread 10 connected to the left side of the semi-circular wheel 1. At this time, the slider 6 is in the right position of the slide rail 7 and is limited by the limit screw 8 on the right side. It should be noted that during the entire operation process, the force of the spring 5 designed is greater than the force of the torsion spring 11. In this way, when the nylon thread 10 gradually lengthens, the semi-circular wheel 1 will gradually rotate to the left, that is, all the elongation of the nylon thread 10 is wound on the semi-circular wheel 1, ensuring that the torsion spring 11 always abuts against the limit bracket 12 and can always trigger the limit switch 13. At the same time, due to the spherical hole in the semi-circular wheel 1 applying a leftward force to the ejector rod 4, the force is transmitted from the ejector rod 4 to the slider 6, driving the slider 6 to move to the left. As Figure 5 shown is the position of each component when tightened to the limit position. At this time, the slider 6 is in the left position of the slide rail 7 and is limited by the limit screw 8 on the left side. At the same time, the ejector rod 4 extends to the longest and is limited by the limit set screw 9 at the bottom of the ejector rod 4.

[0028] The present utility model realizes the tensioning of the nylon thread for breakage detection during equipment processing, ensures that the nylon thread can always pull the torsion spring to trigger the proximity switch, solves the problem of easy false alarms in similar structures of such equipment, has a simple structure, high reliability, and improves the stability and processing efficiency of the equipment.

Claims

1. A wire tensioning device for a wire breakage detection component of a multi-wire cutting machine, characterized in that The structure is as follows: a semi-circular wheel (1) installed on a rotating shaft (2) and capable of rotating around it, a nut (3) for fixing a nylon wire (10) is installed at one end of the semi-circular wheel (1), a push rod (4) is in tangential contact with the bottom of an inclined V-shaped hole formed at the bottom of the semi-circular wheel (1); the push rod (4) is inserted into a slider (6), a spring (5) is sleeved on the push rod (4) and is in contact with the slider (6), and the slider (6) is installed in a slide rail (7).

2. The wire tensioning device of the wire breakage detection component of the multi-wire cutting machine according to claim 1, characterized in that The slide rail (7) is fixed on the base of a multi-wire cutting machine by a limit screw (8).

3. The wire tensioning device of a multi-wire cutting machine wire breakage detection component according to claim 1, characterized in that A groove is formed on the arc surface of the semi-circular wheel (1), and the nylon wire (10) is arranged in the groove.

4. The wire tensioning device of a multi-wire cutting machine wire breakage detection component according to claim 1 or 3, characterized in that An inclined V-shaped hole is formed at the bottom of the semi-circular wheel (1), and the bottom of the hole is a spherical surface.

5. The wire tensioning device of a wire breakage detection component for a multi-wire cutting machine according to claim 4, characterized in that The end of the push rod (4) in tangential contact with the bottom of the V-shaped hole of the semi-circular wheel (1) is hemispherical.

6. The wire tensioning device of the wire breakage detection component of the multi-wire cutting machine according to claim 5, characterized in that A flange is provided in the middle of the push rod (4), and the spring (5) is arranged between the flange and the slider (6).

7. The wire tensioning device of a multi-wire cutting machine wire break detection component according to claim 1, characterized in that The nut (3) is a wing nut.

8. The wire tensioning device of a wire breakage detection component of a multi-wire cutting machine according to claim 6, characterized in that The push rod (4) is inserted into a round hole on the slider (6).

9. The wire tensioning device of a wire breakage detection component of a multi-wire cutting machine according to claim 1, characterized in that The rotating shaft (2) is fixedly installed on the base of a multi-wire cutting machine.

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