Wire cutting equipment with adjustable cutting span

Abstract

The present invention provides a wire cutting device with adjustable cutting span, and relates to the technical field of wire cutting. A wire cutting device with adjustable cutting span comprises: a cutting machine body, a driving wheel, three supporting wheels and a cutting wire; a first connecting rod, whose two ends are respectively rotatably connected to the driving wheel and a supporting wheel, and the first connecting rod is fixedly installed with a first rotation source; a second connecting rod; a limit rod, whose two ends are respectively hinged to the midpoint of the first connecting rod and the midpoint of the second connecting rod, and the limit rod is fixedly installed with two first linear drivers, and the driving shafts of the two first linear drivers are respectively hinged to the first connecting rod and the second connecting rod; the cutting machine body is rotatably connected to two first supporting rods, and each first supporting rod is provided with a reinforcement mechanism for supporting the first connecting rod and the second connecting rod. The present invention has the function of improving the processing accuracy of parts while also being conducive to extending the service life of the cutting wire.

Description

Technical Field

[0001] The invention relates to the technical field of wire cutting, and in particular to a wire cutting device with adjustable cutting span. Background Art

[0002] Diamond wire cutting machine refers to a wire cutting machine that uses a unidirectional or reciprocating motion of the diamond wire to form a relative grinding motion between the diamond wire and the object being cut, thereby achieving the purpose of cutting. Diamond wire cutting machine is suitable for processing hard and brittle materials, such as silicon, sapphire, ceramics, glass, etc.

[0003] The processing personnel place the parts in the cutting machine body, rotate the driving wheel and three supporting wheels installed on the cutting machine body to support the diamond cutting wire, and continuously feed the workbench toward the diamond cutting wire control console by automatically controlling the workbench, or control the diamond wire control console to continuously feed toward the workbench, so that grinding occurs between the diamond wire and the object to be cut to form a cutting motion.

[0004] For example, in the Chinese patent with publication number CN115890446A and subject name Multi-station wire cutting device and wire cutting method, the processing personnel place the workpiece to be cut in the support position on each support assembly, and the first driving wheel, the second driving wheel and the tensioning wheel jointly support the cutting wire, and the cutting wire between the first driving wheel and the second driving wheel cuts the workpiece, so the distance between the first driving wheel and the second driving wheel is the span. The cutting wire is adjusted, the cutting drive member is turned on, the driving wheel drives the cutting wire to move in a circular motion, and the controller controls the rotation drive assembly to turn on, driving the workpiece to rotate around its own axis on the support assembly. The cutting wire then moves to contact the outer circumference of the workpiece and cuts into the workpiece. After the cutting is completed, the controller controls the cutting assembly to move upward, reset and exit the workpiece.

[0005] Regarding the above-mentioned related technologies, for different processed parts, when the span of the cutting line is too large, the tension of the cutting line processing section will increase, thereby increasing the degree of workpieces at different processing positions after processing and increasing the workpiece processing error. When the span is too small, the swing of the wire saw is small, which improves the cutting effect of the cutting line. However, too small a span may cause excessive tension in the wire saw, which has a negative impact on the service life and cutting efficiency of the wire saw. Summary of the invention

[0006] The present invention provides a wire cutting device with adjustable cutting span, aiming to solve the problem that the cutting span cannot be adjusted, thereby increasing the processing error of the workpiece and causing negative impact on the service life and cutting efficiency of the wire saw.

[0007] A wire cutting device with adjustable cutting span according to the present invention comprises: a cutting machine body, a driving wheel, three supporting wheels and a cutting wire; a first connecting rod, whose two ends are respectively rotatably connected to the driving wheel and one of the supporting wheels, and the first connecting rod is fixedly installed with a first rotation source for driving the driving wheel to rotate; a second connecting rod, whose two ends are respectively rotatably connected to the remaining two supporting wheels; a limiting rod, whose two ends are respectively hinged to the midpoint of the first connecting rod and the midpoint of the second connecting rod, and the limiting rod is fixedly installed with two first linear drivers, and the driving shafts of the two first linear drivers are respectively hinged to the first connecting rod and the second connecting rod; the cutting machine body is rotatably connected to two first support rods, and each of the first support rods is provided with a reinforcement mechanism for supporting the first connecting rod and the second connecting rod.

[0008] Beneficial effect: The first linear drive and the second linear drive are extended at the same time, and the first connecting rod and the second connecting rod rotate around the midpoint, so that the first roller and the second roller move closer to each other, thereby reducing the span. Similarly, the first linear drive and the second linear drive are shortened at the same time to increase the span. Therefore, the span size can be adjusted according to the size of the processed parts, which not only improves the processing accuracy of the parts but also helps to extend the service life of the cutting line.

[0009] Optionally, the cutting machine body is rotatably connected to one end away from the reinforcement mechanism with two second support rods, each of the second support rods is threadedly connected to a first support block, the first support block is slidably connected to a sliding plate, and the two sliding plates are respectively hinged to the first connecting rod and the second connecting rod.

[0010] Beneficial effect: The first connecting rod and the second connecting rod can self-adjust the span of the cutting lines on both sides of the part according to the shape of the processed part, so that the span of the cutting lines on both sides of the part is equal, thereby improving the processing accuracy of the cutting line on the side with a larger span for the part, further improving the part processing effect, and at the same time being able to maintain the life of the cutting line on the side with a smaller span.

[0011] Optionally, the reinforcement mechanism includes a second support block threadedly connected to the first support rod, the second support block is hinged with a reinforcement rod, the reinforcement rod is slidably connected to a first sliding rod at one end away from the first support rod, and the first sliding rod is hinged to the first connecting rod or the second connecting rod at one end away from the reinforcement rod.

[0012] Optionally, a second linear actuator is fixedly mounted on the first support block, a driving shaft of the second linear actuator is fixedly connected to a friction block, and the friction block abuts against a locking block fixedly connected to the sliding plate.

[0013] Beneficial effect: The friction force between the friction block and the locking block is used to limit the movement of the sliding plate, thereby limiting the horizontal movement of the first connecting rod and the second connecting rod, thereby increasing the stability of the cutting line cutting parts.

[0014] Optionally, a second rotation source for driving the first support rod to rotate is fixedly installed on the cutting machine body, and a third rotation source for driving the second support rod to rotate is fixedly installed on the cutting machine body.

[0015] Optionally, the cutting machine body is slidably connected to a transmission block, the top of the transmission block is rotatably connected to a connecting plate, the connecting plate is rotatably connected to a loading plate, the transmission block is threadedly connected to a transmission screw, the transmission screw is rotatably connected to the cutting machine body, and the cutting machine body is fixedly installed with a fourth rotation source for driving the transmission screw to rotate.

[0016] Optionally, a fifth rotation source is fixedly mounted on the bottom wall of the connecting plate, and the fifth rotation source is used to drive the loading plate to rotate.

[0017] Optionally, one of the support wheels is a tensioning wheel, the tensioning wheel is fixedly connected to a clamping block, the clamping block is slidably connected to a second sliding rod, the second sliding rod is fixedly connected to a fixed third support block at one end away from the clamping block, and the second sliding rod sleeve is provided with an extrusion spring for squeezing the clamping block to move outside the cutting line.

[0018] Beneficial effect: The tension wheel tightens the cutting line, which improves the reliability of the driving wheel and the supporting wheel in supporting the cutting line. At the same time, tightening the cutting line can reduce the swing amplitude of the cutting line when processing parts, further improving the cutting accuracy of the parts.

[0019] Optionally, the cutting machine body is fixedly connected to a protective shell, and the driving wheel, the supporting wheel and the cutting line are arranged in the protective shell.

[0020] Beneficial effect: The protective shell is used to limit the amount of cutting chips generated by the cutting wire cutting parts moving to the outside of the cutting machine body, thereby protecting the physical safety of the processing personnel.

[0021] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0022] The first linear drive and the second linear drive are extended at the same time, and the first connecting rod and the second connecting rod rotate around the midpoint, so that the first roller and the second roller move closer to each other, thereby reducing the span. Similarly, the first linear drive and the second linear drive are shortened at the same time to increase the span. In this way, the span size can be adjusted according to the size of the processed parts, which not only improves the processing accuracy of the parts but also helps to extend the service life of the cutting line. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of a protective housing according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the first connecting rod and the second connecting rod of an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the first support rod, the second support rod and the reinforcement mechanism of an embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the second linear actuator part of an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the components below the loading plate according to an embodiment of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the tensioning wheel part of an embodiment of the present invention.

[0030] Description of the accompanying drawings: 1. cutting machine body; 11. driving wheel; 12. supporting wheel; 121. first roller; 122. second roller; 123. third roller; 13. cutting line; 14. first supporting rod; 141. second rotation source; 15. second supporting rod; 151. first supporting block; 152. sliding plate; 153. locking block; 154. third rotation source; 2. first connecting rod; 21. first rotation source; 3. second connecting rod; 4. limiting Position rod; 41, first linear drive; 5, reinforcement mechanism; 51, second support block; 52, reinforcement rod; 53, first slide bar; 6, second linear drive; 61, friction block; 7, transmission block; 71, connecting plate; 711, fifth rotation source; 72, loading plate; 73, transmission screw; 74, fourth rotation source; 8, tensioning wheel; 81, clamping block; 82, second slide bar; 83, third support block; 84, extrusion spring; 9, protective shell. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 7 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0032] This embodiment provides a wire cutting device with adjustable cutting span, referring to Figure 1 , Figure 2 and Figure 3 A wire cutting device with adjustable cutting span includes a cutting machine body 1, a driving wheel 11 rotatably arranged on the cutting machine body 1, three supporting wheels 12, and a cutting line 13 sleeved on the side walls of the driving wheel 11 and the supporting wheel 12. The three supporting wheels 12 are a first roller 121, a second roller 122, and a third roller 123. The driving wheel 11 and the first roller 121 are connected to a first connecting rod 2 for rotation together, and the driving wheel 11 and the first roller 121 are arranged at both ends of the first connecting rod 2, and the first connecting rod 2 is fixedly installed with a first rotating source 21 for driving the driving wheel 11 to rotate. The second roller 122 and the third roller 123 are connected to a second connecting rod 3 for rotation together, and the second roller 122 and the third roller 123 are arranged at both ends of the second connecting rod 3. The cutting line 13 between the first roller 121 and the second roller 122 abuts against the workpiece, and the distance between the first roller 121 and the second roller 122 is the span.

[0033] Reference Figure 2 , Figure 3 and Figure 4 The midpoint of the first connecting rod 2 and the midpoint of the second connecting rod 3 are hinged with a limit rod 4, and the limit rod 4 is fixedly installed with two first linear actuators 41, and the driving shafts of the two first linear actuators 41 are respectively hinged with the first connecting rod 2 and the second connecting rod 3. The cutting machine body 1 is rotatably connected to two first support rods 14, and each first support rod 14 is provided with a reinforcement mechanism 5 for supporting the first connecting rod 2 and the second connecting rod 3.

[0034] The first rotation source 21 drives the driving wheel 11 to rotate, and the driving wheel 11 drives the cutting line 13 to rotate and cut the parts through friction, and at the same time, the three supporting wheels 12 rotate under the drive of the cutting line 13. The first linear actuator 41 and the second linear actuator 6 are extended at the same time, and the first connecting rod 2 and the second connecting rod 3 rotate around the midpoint, so that the first roller 121 and the second roller 122 move closer to each other, thereby reducing the span. Similarly, the first linear actuator 41 and the second linear actuator 6 are shortened at the same time to increase the span, thereby adjusting the span size according to the size of the processed parts, which is beneficial to extending the service life of the cutting line 13 while improving the processing accuracy of the parts.

[0035] The limit rod 4 can control the distance between the first link 2 and the second link 3, so that when the first link 2 and the second link 3 rotate to adjust the span, the distance between the midpoint of the first link 2 and the midpoint of the second link 3 remains unchanged, thereby enabling the driving wheel 11 and the three supporting wheels 12 to always hold the cutting line 13 tight.

[0036] Reference Figure 2 and Figure 4The cutting machine body 1 is vertically rotatably connected to one end away from the reinforcement mechanism 5 with two second support rods 15, each first support block 151 is threadedly connected to the first support block 151, the first support block 151 is slidingly connected to the cutting machine body 1, the first support block 151 is horizontally slidably connected to a sliding plate 152, and the two sliding plates 152 are respectively hinged to the first connecting rod 2 and the second connecting rod 3.

[0037] Reference Figure 2 and Figure 4 The reinforcement mechanism 5 includes a second support block 51 threadedly connected to the first support rod 14, the second support block 51 is slidably connected to the cutting machine body 1, the second support block 51 is hinged with a reinforcement rod 52, the reinforcement rod 52 is slidably connected to the first sliding rod 53 at one end away from the first support rod 14, and the first sliding rod 53 is hinged to the first connecting rod 2 or the second connecting rod 3 at one end away from the reinforcement rod 52.

[0038] When the shape of the part being processed is irregular, that is, when the part where the cutting line 13 abuts the part is not located between the second roller 122 and the third roller 123, the spans of the cutting lines 13 on both sides of the part will be unequal, thereby causing the cutting lines 13 on both sides of the part to move in different amplitudes when processing the part, resulting in different processing accuracy of different parts of the part.

[0039] When the distance between the second roller 122 and the part is greater than the distance between the first roller 121 and the part, the cutting line 13 abuts against the part to cut and bends, and the deformed part is the tip of the wire bow and the tip of the wire bow is close to the first roller 121. The cutting line 13 continues to move toward the inside of the part, and the first connecting rod 2 and the second connecting rod 3 move in the horizontal direction along the sliding plate 152, so that the tip of the wire bow moves to the middle of the second roller 122 and the first roller 121. At this time, the first sliding rod 53 close to the first roller 121 moves toward the inside of the reinforcement rod 52, and the first sliding rod 53 away from the first roller 121 moves toward the outside of the reinforcement rod 52.

[0040] Therefore, the first connecting rod 2 and the second connecting rod 3 can self-adjust the span of the cutting lines 13 on both sides of the part according to the shape of the processed part, so that the spans of the cutting lines 13 on both sides of the part are equal, thereby improving the processing accuracy of the cutting lines 13 on the side with a larger span for the part, further improving the part processing effect, and at the same time helping to maintain the life of the cutting lines 13 on the side with a smaller span.

[0041] Reference Figure 4 and Figure 5 The first support block 151 is fixedly mounted with the second linear actuator 6 , the driving shaft of the second linear actuator 6 is fixedly connected with the friction block 61 , and the friction block 61 abuts against the locking block 153 fixedly connected to the sliding plate 152 .

[0042] When the span of the cutting line 13 on both sides of the part is adjusted, the second linear drive 6 drives the friction block 61 to move upward, so that the friction block 61 abuts against the locking block 153, and the friction force between the friction block 61 and the locking block 153 is used to limit the movement of the sliding plate 152, thereby limiting the horizontal movement of the first connecting rod 2 and the second connecting rod 3, thereby increasing the stability of the cutting line 13 in cutting the part.

[0043] Reference Figure 2 and Figure 4 The cutting machine body 1 is fixedly installed with a second rotation source 141 for driving the first support rod 14 to rotate, and the cutting machine body 1 is fixedly installed with a third rotation source 154 for driving the second support rod 15 to rotate. The second support rod 15 and the first support block 151 form a screw slider structure, and the first support rod 14 and the second support block 51 form a screw slider structure. The second rotation source 141 and the third rotation source 154 operate simultaneously, driving the first support block 151 and the second support block 51 to move in the vertical direction, thereby driving the first connecting rod 2 and the second connecting rod 3 to move, and then adjusting the distance of the cutting line 13 relative to the processed part in the vertical direction.

[0044] Reference Figure 2 and Figure 6 The cutting machine body 1 is slidably connected with a transmission block 7, the top of the transmission block 7 is rotatably connected with a connecting plate 71, and the connecting plate 71 is rotatably connected with a loading plate 72 for placing parts. The transmission block 7 is threadedly connected with a transmission screw 73, and the transmission screw 73 is rotatably connected to the cutting machine body 1. The cutting machine body 1 is fixedly installed with a fourth rotation source 74 for driving the transmission screw 73 to rotate. The fourth rotation source 74 drives the transmission screw 73 to rotate forward, so that the transmission screw 73 drives the processed parts to move close to the cutting line 13 through the transmission block 7, the connecting plate 71 and the loading plate 72 in sequence, so that the parts are cut.

[0045] Reference Figure 6 The bottom wall of the connecting plate 71 is fixedly mounted with a fifth rotation source 711 for driving the loading plate 72 to rotate. When one side of the part is cut, the fourth rotation source 74 drives the transmission screw 73 to reverse, so that the part is separated from the cutting line 13, and the fifth rotation source 711 starts to rotate the loading plate 72, so that the unprocessed side of the part is rotated to the cutting line 13, thereby cutting multiple sides of the part that need to be processed.

[0046] Reference Figure 2 and Figure 7The third roller 123 is a tensioning wheel 8, the tensioning wheel 8 is fixedly connected with a clamping block 81, the clamping block 81 is slidably connected with a second slide bar 82, the second slide bar 82 is fixedly connected with a third fixed support block 83 at one end away from the clamping block 81, the second slide bar 82 is sleeved with an extrusion spring 84 for squeezing the clamping block 81 to move outside the cutting line 13, the tensioning wheel 8 moves synchronously with the clamping block 81 to tighten the cutting line 13, thereby improving the reliability of the driving wheel 11 and the supporting wheel 12 in supporting the cutting line 13, and at the same time, tightening the cutting line 13 can reduce the swing amplitude of the cutting line 13 when processing parts, further improving the cutting accuracy of the parts.

[0047] Reference Figure 1 The cutting machine body 1 is fixedly connected to a protective shell 9, and a driving wheel 11, a supporting wheel 12 and a cutting line 13 are arranged in the protective shell 9. The protective shell 9 is used to limit the amount of cutting chips generated by the cutting line 13 cutting parts and moving to the outside of the cutting machine body 1, thereby protecting the physical safety of the processing personnel.

[0048] The cutting machine body 1 can be installed horizontally on a workbench, and can also be installed vertically on the workbench, so that the cutting line 13 can cut parts in a horizontal direction, and can also cut parts in a vertical direction.

[0049] The implementation principle of a wire cutting device with adjustable cutting span in an embodiment of the present invention is as follows: the first linear drive 41 and the second linear drive 6 are extended at the same time, and the first connecting rod 2 and the second connecting rod 3 rotate around the midpoint, so that the first roller 121 and the second roller 122 move closer to each other, thereby reducing the span. Similarly, the first linear drive 41 and the second linear drive 6 are shortened at the same time to increase the span, thereby adjusting the span size according to the size of the processed parts, which not only improves the processing accuracy of the parts but also helps to extend the service life of the cutting line 13.

[0050] The limit rod 4 can control the distance between the first link 2 and the second link 3, so that the first link 2 and the second link 3 can rotate to adjust the span while keeping the distance between the midpoint of the first link 2 and the midpoint of the second link 3 unchanged, and the driving wheel 11 and the three supporting wheels 12 can always hold the cutting line 13 tight.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A wire cutting device with adjustable cutting span, comprising a cutting machine body, a driving wheel, three supporting wheels and a cutting wire, characterized in that: Also includes: A first connecting rod, two ends of which are rotatably connected to the driving wheel and one of the supporting wheels respectively, and the first connecting rod is fixedly mounted with a first rotation source for driving the driving wheel to rotate; A second connecting rod, both ends of which are rotatably connected to the remaining two supporting wheels; A limit rod, two ends of which are respectively hinged to the midpoint of the first connecting rod and the midpoint of the second connecting rod, the limit rod is fixedly mounted with two first linear actuators, and the driving shafts of the two first linear actuators are respectively hinged to the first connecting rod and the second connecting rod; The cutting machine body is rotatably connected to two first support rods, and each of the first support rods is provided with a reinforcement mechanism for supporting the first connecting rod and the second connecting rod; The cutting machine body is rotatably connected to one end away from the reinforcement mechanism with two second support rods, each of the second support rods is threadedly connected to a first support block, the first support block is slidably connected to a sliding plate, and the two sliding plates are hinged to the first connecting rod and the second connecting rod respectively; The reinforcement mechanism comprises a second support block threadedly connected to the first support rod, the second support block is hinged with a reinforcement rod, the reinforcement rod is slidably connected to a first sliding rod at one end away from the first support rod, and the first sliding rod is hinged to the first connecting rod or the second connecting rod at one end away from the reinforcement rod; The first support block is fixedly mounted with a second linear actuator, a driving shaft of the second linear actuator is fixedly connected with a friction block, and the friction block abuts against a locking block fixedly connected to the sliding plate; A second rotation source for driving the first support rod to rotate is fixedly installed on the cutting machine body, and a third rotation source for driving the second support rod to rotate is fixedly installed on the cutting machine body.

2. The wire cutting device with adjustable cutting span according to claim 1, characterized in that: The cutting machine body is slidably connected to a transmission block, the top of the transmission block is rotatably connected to a connecting plate, the connecting plate is rotatably connected to a loading plate, the transmission block is threadedly connected to a transmission screw, the transmission screw is rotatably connected to the cutting machine body, and the cutting machine body is fixedly installed with a fourth rotation source for driving the transmission screw to rotate.

3. The wire cutting device with adjustable cutting span according to claim 2, characterized in that: A fifth rotation source is fixedly mounted on the bottom wall of the connecting plate, and the fifth rotation source is used to drive the loading plate to rotate.

4. The wire cutting device with adjustable cutting span according to claim 1, characterized in that: One of the support wheels is a tensioning wheel, the tensioning wheel is fixedly connected to a clamping block, the clamping block is slidably connected to a second sliding rod, the second sliding rod is fixedly connected to a fixed third support block at one end away from the clamping block, and the second sliding rod is sleeved with an extrusion spring for squeezing the clamping block to move outside the cutting line.

5. The wire cutting device with adjustable cutting span according to claim 1, characterized in that: The cutting machine body is fixedly connected with a protective shell, and the driving wheel, the supporting wheel and the cutting line are arranged in the protective shell.

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