CN216578654U - Self-adaptive adjusting device for bending bow angle of saw wire in wire saw cutting processing - Google Patents

Abstract

The utility model discloses a self-adaptation adjusting device of crooked bow angle of saw wire in scroll saw cutting process belongs to cutting process technical field, including first positioning guide device, first positioning guide device includes the first supporting workbench of two relative settings, and through first screw connection between two first supporting workbenches, vertical first positioning through-hole is all seted up to two first supporting workbenches and is passed in order to supply first guide post, and first guide post bottom is connected with the guide pulley, but first guide post vertical reciprocating motion, and first spring is established to first guide post periphery cover.

Description

Self-adaptive adjusting device for bending bow angle of saw wire in wire saw cutting processing

Technical Field

The utility model belongs to the technical field of the cutting process technique and specifically relates to a self-adaptation adjusting device of crooked bow angle of saw wire among scroll cutting process.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

Silicon, silicon carbide and other materials are widely used in industrial production due to their unique physical and chemical properties. The diamond wire saw slicing technology is widely applied to the crystal slicing industry due to the advantages of narrow cutting seam, high material removal rate, good slicing surface quality and the like.

The existing wire saw machine equipment generally fixes a workpiece on a tool table capable of feeding, and a saw wire reciprocates to feed the workpiece along with the feeding tool table to a direction vertical to the saw wire; or the saw wire is fed along the direction vertical to the workpiece while reciprocating to finish cutting. The diamond saw wire has the characteristics of large cutting span, small diameter, elasticity and the like, can form a bow angle in the process of cutting a hard and brittle material, and further exerts sawing force on a workpiece cutting area to remove the material.

The inventors have found that the feed rate in the cutting process is generally constant for ease of operation. However, if the workpiece to be cut is made of a high-hardness material, the cutting ability of the saw wire is reduced with the wear of the saw wire, and the feed amount cannot be cut off in time. The accumulation of the feed results in the increasing of the bending bow angle of the saw wire, the increasing of the acting force between the saw wire and the workpiece and the reduction of the surface quality of the cut piece. And the tension on the saw wire is continuously increased, the phenomenon of wire breakage can occur, and the sawing process is interrupted.

At present, the sawing machine with the control system is used more, the feeding speed is adjusted in real time, the problem that the tension of a saw wire and the bow angle are increased in the sawing process is solved, the manufacturing cost of the sawing machine and the complexity of the control system are greatly improved, and meanwhile, the technical requirements for operators are also improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a self-adaptation adjusting device of the crooked bow angle of saw wire in scroll saw cutting processing, the guide pulley has been set up, the guide pulley position can be adjusted by oneself according to the demand, through the change according to saw cutting force at saw cutting in-process, make the guide pulley position change, realized adjusting the bow angle of saw wire by oneself according to saw cutting force in cutting process, the cutting ability that makes the saw wire and the feed rate phase-match of workstation, the problem of saw wire wearing and tearing aggravation even broken wire that results in reasons such as saw wire bow angle grow has been solved and has been cut the in-process and the quality of cutting is reduced.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, the utility model provides a wire saw cuts self-adaptation adjusting device at crooked bow angle of processing, including first positioning guide device, first positioning guide device includes the first supporting workbench of two relative settings, and through first screw connection between two first supporting workbench, vertical first location through-hole is all seted up to two first supporting workbench and is passed in order to supply first guide post, and first guide post bottom is connected with the guide pulley, but first guide post vertical reciprocating motion, and first spring is established to first guide post periphery cover.

As a further technical scheme, a first positioning guide block is fixedly arranged in the first positioning through hole and is connected with the first guide column in a clamping manner.

As a further technical scheme, a first protrusion is arranged on the side of the first positioning guide block, a first groove is formed in the side of the first guide column, and the first protrusion is in clamping fit with the first groove.

As a further technical scheme, the first protrusion and the first groove are both V-shaped.

As a further technical scheme, the number of the first positioning guide blocks is two, the two first positioning guide blocks are oppositely arranged on two sides of the first guide column, and the two first protrusions are located in the same vertical plane.

As a further technical scheme, a first nut is sleeved on the outer periphery of the first lead screw; and a first guide rail is also connected between the two first supporting workbenches.

As a further technical scheme, the device also comprises a second positioning and guiding device, wherein the second positioning and guiding device comprises two second supporting workbenches which are oppositely arranged, and the first supporting workbench is positioned below the second supporting workbench; the two second supporting working tables are connected through a second lead screw, transverse second positioning through holes are formed in the two second supporting working tables to allow the second guide posts to penetrate through, the end portions of the second guide posts are connected with the tensioning wheel, the second guide posts can transversely reciprocate, and second springs are sleeved on the outer peripheries of the second guide posts.

As a further technical scheme, a second positioning guide block is fixedly arranged in the second positioning through hole, a second protrusion is arranged on the side portion of the second positioning guide block, a second groove is formed in the side portion of the second guide column, and the second protrusion is in clamping fit with the second groove.

As a further technical scheme, the second protrusion and the second groove are both in a V shape; the two second positioning guide blocks are oppositely arranged on two sides of the second guide post, and the two second bulges are positioned in the same vertical plane.

As a further technical scheme, a second nut is sleeved on the outer periphery of the second lead screw; and a second guide rail is also connected between the two second supporting workbenches.

Above-mentioned the utility model has the advantages as follows:

1) the utility model discloses the guide pulley that can remove by oneself has been set up, first spring can carry out the precompression before sawing, in cutting process, if the material hardness is higher or the circumstances such as saw wire wearing and tearing appear, make the cutting volume be less than the feed volume, the bow angle is too big, then the first spring of guide pulley department further compresses, the guide pulley position is adjusted, thereby make the saw wire give way for the workstation, reduce the bow angle, realized adjusting the bow angle of saw wire by oneself according to the saw cutting power in cutting process, make the cutting ability of saw wire and the feed volume phase-match of workstation, guarantee cutting quality when preventing the broken string.

2) The utility model discloses set up the take-up pulley that can remove by oneself, when the first spring further compression of guide pulley department made the saw silk give way, the precompression of take-up pulley department second spring then can release, guaranteed that the saw silk stores up the length outside the bobbin and tension and maintain a stable within range.

3) The utility model discloses the location guide block passes through the protruding cooperation with the V-arrangement recess of V-arrangement with the guide post, not only can play the effect of direction, has still avoided the rotation of guide post to guarantee that guide pulley and take-up pulley can not appear position pivoted phenomenon because of the atress in cutting process, guaranteed the security of cutting work.

4) The utility model discloses be high vice line contact between the recess of V-arrangement arch on the location guide block and guide post, add lubricating oil and can guarantee that the guide post can remove in the direction of self-adaptation regulation, whole accommodation process need not artificial operation alright adjust by oneself, has reduced the use degree of difficulty, and whole device simple structure, has reduced use cost.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic diagram of an overall structure of an adaptive adjusting device for a bending bow angle of a saw wire in a wire saw cutting process according to one or more embodiments of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of the guide post structure of FIG. 1;

fig. 3 is a schematic structural view of a guide positioning block according to one or more embodiments of the present invention;

fig. 4 is a schematic diagram of a guide wheel support table coupled to a lead screw guide rail according to one or more embodiments of the present disclosure;

fig. 5 is a schematic structural view of a tensioner support table in connection with a lead screw guide rail according to one or more embodiments of the present disclosure;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

the automatic wire sawing machine comprises a feeding workbench, a workpiece, a guide wheel, a spring, a guide column, a positioning guide block, a wire sawing machine, a guide rail, a second supporting workbench, a tensioning wheel, a positioning through hole, a lead screw, a wire storage barrel, a groove, a mounting hole, a V-shaped protrusion, a nut, a mounting hole, a positioning through hole, a guide rod, a positioning guide block, a wire 7, a saw wire, a guide rail 9, a second supporting workbench, a tensioning wheel, a positioning through hole, a lead screw, a mounting hole, a V-shaped protrusion, a nut and a first supporting workbench, wherein the feeding workbench is 1.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Just as the background art introduces, saw cut reasons such as in-process saw wire tension and bow angle grow can lead to the slicing quality to reduce, and the problem of saw wire wearing and tearing aggravation disconnected silk even is for solving above-mentioned problem, the utility model provides a self-adaptation adjusting device of the crooked bow angle of saw wire among scroll cutting processing.

Example 1

The utility model discloses an among the typical embodiment, as shown in fig. 1-5, provide a wire saw cutting process in crooked bow angle's self-adaptation adjusting device, including first location guider, second location guider, first location guider can be in the position of vertical regulation guide pulley 3, and second location guider can be in the position of horizontal regulation take-up pulley 10 to adjust the bow angle of wire saw in the cutting course of working.

The first positioning guide device is provided with a first support table 18 and a guide wheel 3 arranged on the first support table 18. The second positioning guide is provided with a second support table 9 and a tension pulley 10 provided on the second support table 9.

Two first supporting workbenches 18 are arranged, and the two first supporting workbenches are horizontally arranged oppositely; two second supporting workbenches 9 are also arranged, and the two second supporting workbenches are horizontally arranged oppositely; the first support table 18 is located below the second support table 9.

As shown in fig. 4, the two first supporting tables 18 are connected through the screw 12, nuts 17 are disposed at two ends of the screw 12, the two first supporting tables 18 can transversely reciprocate on the screw 12, and the positioning is realized through the nuts 17, so that the guide wheel 3 can be freely adjusted in position.

Still be equipped with guide rail 8 between two first supporting workbench 18, guide rail 8 is equipped with two, is located the both sides of lead screw 12 respectively, not only plays the effect of direction, can also improve first positioning guide device's installation stability.

Each first support table 18 is connected with a guide wheel 3, and the two guide wheels 3 are located below the first support table 18, so that the saw wire is tensioned.

Guide pulley 3 is connected with guide post 5, and guide post 5 reciprocates for first supporting workbench 18 for the vertical setting of first supporting workbench 18 through guide post 5 drive guide pulley 3, and first supporting workbench 18 is located work piece 2 top, and wherein work piece 2 places on feeding workstation 1.

The utility model discloses in the fixed mode etc. of feeding the drive mode of feeding workstation 1 and work piece 2 on feeding workstation 1 all can adopt prior art to realize.

Rectangular positioning through hole 11 is seted up to first supporting workbench 18, and the vertical setting of positioning through hole here has two relative positioning guide blocks 6 that set up in positioning through hole 11, and guide post 5 connected with guide pulley 3 inserts in positioning through hole 11 to be located between two positioning guide blocks 6, thereby realize guide pulley 3 and first supporting workbench 18's connection, and set up guide pulley 3 in first supporting workbench 18 below.

As shown in fig. 3, the positioning guide block 6 is a U-shaped structure, the upper and lower ends of the positioning guide block 6 are provided with mounting holes 15 in the shape of a long groove, and the middle of the side surface of the positioning guide block 6 is provided with a V-shaped protrusion 16.

As shown in fig. 4, the surfaces of the two positioning guide blocks 6 in the positioning through hole 11, which are provided with the V-shaped protrusions 16, are arranged oppositely, the two V-shaped protrusions 16 are located in the same vertical plane, and the two positioning guide blocks 6 are both fixedly mounted in the positioning through hole through respective mounting holes 15 in cooperation with bolts.

As shown in fig. 2, vertical grooves 14 are symmetrically formed in the side surface of the guide post 5, the grooves 14 are V-shaped grooves, and when the guide wheel 3 is installed, the grooves 14 on the guide post 5 are in contact fit with V-shaped protrusions 16 on the positioning guide blocks 6 on the two sides of the guide post to limit the guide post, so that the guide post 5 can be effectively prevented from rotating; the guide post 5 is sleeved with the spring 4, the V-shaped bulge 16 on the positioning guide block 6 enables the guide post 5 to move freely in the positioning through hole 11, and meanwhile, the spring 4 can be clamped.

Each second support table 9 is connected with a tensioning wheel 10, and the two tensioning wheels 10 are arranged at the side part of the second support table 9, so that the saw wire is tensioned.

The tensioning wheel 10 is connected with the guide post 5, the guide post 5 is transversely arranged relative to the second supporting workbench 9, and the guide post 5 drives the tensioning wheel 10 to move left and right relative to the second supporting workbench 9.

The second supporting workbench 9 is provided with a rectangular positioning through hole 11, the positioning through hole is transversely arranged, two positioning guide blocks 6 which are oppositely arranged are arranged in the positioning through hole 11, the guide post 5 connected with the tensioning wheel 10 is inserted into the positioning through hole 11 and is positioned between the two positioning guide blocks 6, so that the tensioning wheel 10 is connected with the second supporting workbench, and the tensioning wheel is arranged on the side part of the second supporting workbench 9.

The positioning guide block and the guide post are identical in structure to those of the first positioning guide device.

Two location guide blocks 6 are equipped with the protruding 16 one side relative settings from top to bottom of V-arrangement in positioning hole 11, and two V-arrangement are protruding 16 and are in same vertical plane, and two location guide blocks 6 are all through respective mounting hole 15 cooperation bolt fixed mounting in positioning hole.

When the tensioning wheel 10 is installed, the transverse grooves 14 on the guide posts 5 connected with the tensioning wheel 10 are in contact fit with the V-shaped protrusions 16 on the positioning guide blocks 6 on two sides of the transverse grooves, the springs 4 are sleeved on the guide posts 5, the V-shaped protrusions 16 on the positioning guide blocks 6 enable the guide posts 5 to move freely in the positioning through holes 11, and meanwhile the springs 4 are clamped.

Two second supporting working platforms are also connected through a screw rod 12, nuts 17 are arranged at two ends of the screw rod 12, the two second positioning guide devices can transversely reciprocate on the screw rod 12 and realize positioning through the nuts 17, and therefore the position of the tensioning wheel 10 can be freely adjusted.

Also be equipped with guide rail 8 between two second location guider, guide rail 8 is equipped with two, is located the both sides of lead screw 12 respectively, not only plays the effect of direction, can also improve second location guider's installation stability.

In the scheme, the screw rods in the first positioning guide device and the second positioning guide device are arranged in parallel.

The installation process of the guide wheel 3 and the tension wheel 10 is as follows: two guide positioning blocks 6 are respectively arranged in each positioning through hole 11 of the supporting workbench, and the V-shaped bulges 16 on the two guide positioning blocks 6 are opposite in position;

the bolts are inserted into the mounting holes 15 in a half-tightening state, the guide posts 5 are inserted into the corresponding positioning through holes 11, the positioning guide blocks 6 are adjusted to enable the V-shaped protrusions 16 to be tightly attached to the grooves 14 in the side walls of the guide posts 5, and then the bolts are tightened to complete the installation.

During cutting, the guide wheel 3 can move relative to the first supporting workbench, and the tension wheel 10 can move relative to the second supporting workbench; at this time, the V-shaped protrusion 16 on the positioning guide block 6 is in high-order linear contact with the groove 14 of the guide post 5, and the guide post 5 can move in the direction of adaptive adjustment by adding lubricating oil.

A wire storage barrel 13 is arranged above the second supporting working table, a saw wire 7 is arranged in the wire storage barrel 13, for the convenience of understanding, the saw wire 7 extends out of the wire storage barrel 13, firstly bypasses a tension pulley 10 on the right side of the second supporting working table, and then sequentially bypasses two guide wheels 3 below the first supporting working table, and finally bypasses a tension pulley 10 on the left side of the second supporting working table to return to the wire storage barrel 13, so that the saw wire is tensioned under the support of the tension pulley and the guide wheels.

In use, the first and second support tables are first moved into position on the lead screw 12, respectively.

Specifically, the distance between the guide wheels 3 is adjusted to adapt to the size of the workpiece 2, then the distance between the tension wheels 10 is adjusted to apply proper tension to the saw wire 7, and after the position is adjusted, the nut 17 on the screw rod 12 is screwed down to fix the guide wheels 3 on the first supporting workbench and the tension wheels 10 on the second supporting workbench at proper positions.

After the positions of the guide wheel 3 and the tension wheel 10 are fixed, the workpiece 2 is fixed on the feeding working table 1, the feeding working table 1 moves along the feeding direction of the workpiece 2, the saw wire 7 is stressed to be bent and tensioned, and an upward pressure is applied to the spring 4 at the position of the guide wheel 3 to compress the spring; meanwhile, the pre-tightening force of the spring 4 at the tensioning wheel 10 is released so as to maintain the original tension of the wire saw 7 to be stable. After the feed speed is set, the feed table 1 will move in a direction perpendicular to the saw wire 7, while the saw wire 7 is tensioned and reciprocates, cutting the workpiece 2.

In case the material of the workpiece 2 is hard or the saw wire 7 is worn more severely, resulting in a cutting amount smaller than the feeding amount, the sawing force of the workpiece 2 on the saw wire 7 will be increased, so that the spring 4 at the guide wheel 3 is further compressed.

At this moment, the guide wheel 3 can give way towards the direction of keeping away from the work piece 2 for the bow angle reduces and stabilizes in comparatively reasonable within range, avoids because the bow angle is too big, the too high phenomenon that leads to the slice quality to descend, saw 7 wearing and tearing are serious even disconnected takes place for the tensile force, realizes the cutting ability of saw 7 and the result of feed matching.

Meanwhile, the compression amount of the spring 4 at the tensioning wheel 10 can be released, so that the length of the saw wire 7 outside the wire storage barrel 13 is kept unchanged, the tension is stabilized in a certain range, and the cutting capability of the saw wire 7 is ensured.

As shown in FIG. 1, the bow angle of the saw wire 7 is the angle between the state that the saw wire 7 is bent under stress when cutting the workpiece 2 and the initial state that the saw wire 7 is not stressed

Before sawing, the positions of the guide wheel and the tension wheel are determined through the lead screw guide rail, and the nut is screwed up to fix. The saw wire has pre-tightening force which is applied to the spring device to generate pre-compression. In the cutting process, if the hardness of the material is higher or the saw wire is abraded, so that the cutting amount is smaller than the feeding amount, and the bow angle is too large, the spring device at the guide wheel is further compressed, the saw wire retreats relative to the workbench, the bow angle is reduced, the cutting quality is guaranteed while the wire breakage is prevented; the pre-compression of the spring at the tension wheel can be released, so that the length and the tension outside the wire storage cylinder are kept in a stable range.

According to the change of the sawing force in the sawing process, the positions of the guide wheel 3 and the tension wheel 10 are automatically adjusted, so that the bow angle of the saw wire 7 is automatically adjusted according to the sawing force in the cutting process, the cutting capability of the saw wire 7 is matched with the feeding amount of the working table, and the phenomena that the slicing quality is reduced, the abrasion of the saw wire is aggravated and even the wire is broken due to the reasons of the bow angle, the overlarge tension and the like are avoided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a wire saw cuts self-adaptation adjusting device of crooked bow angle of saw silk in processing, characterized by, including first positioning guide device, first positioning guide device includes the first supporting workbench of two relative settings, and through first screw connection between two first supporting workbench, vertical first positioning through-hole is all seted up to two first supporting workbench and is passed in order to supply first guide post, and first guide post bottom is connected with the guide pulley, but first guide post vertical reciprocating motion, and first spring is established to first guide post periphery cover.

2. The device for adaptively adjusting the bow angle of a wire in wire saw cutting according to claim 1, wherein a first positioning guide block is fixedly disposed in the first positioning through hole, and the first positioning guide block is engaged with the first guide post.

3. The device for adaptively adjusting the bow angle of a wire in wire saw cutting according to claim 2, wherein the first positioning guide block has a first protrusion on a side portion thereof, the first guide post has a first groove on a side portion thereof, and the first protrusion is engaged with the first groove.

4. The device for adaptively adjusting the bow angle of a wire in a wire saw cutting process according to claim 3, wherein the first protrusion and the first groove are each V-shaped.

5. The device for adaptively adjusting the bow angle of a wire in a wire saw cutting process according to claim 3, wherein the first positioning guide blocks are disposed in two numbers, the two first positioning guide blocks are oppositely disposed on both sides of the first guide post, and the two first protrusions are disposed in the same vertical plane.

6. The device for adaptively adjusting the bow angle of a wire in wire saw cutting according to claim 1, wherein a first nut is sleeved on the outer periphery of the first lead screw; and a first guide rail is also connected between the two first supporting workbenches.

7. The apparatus of claim 1, further comprising a second positioning guide, the second positioning guide comprising two opposing second support tables, the first support table being located below the second support table; the two second supporting workbenches are connected through a second lead screw, transverse second positioning through holes are formed in the two second supporting workbenches to enable the second guide posts to penetrate through the two second supporting workbenches, the end portions of the second guide posts are connected with the tensioning wheel, the second guide posts can transversely reciprocate, and second springs are sleeved on the outer peripheries of the second guide posts.

8. The device for adaptively adjusting the bow angle of a wire in wire saw cutting according to claim 7, wherein a second positioning guide block is fixedly arranged in the second positioning through hole, a second protrusion is arranged on the side of the second positioning guide block, a second groove is arranged on the side of the second guide post, and the second protrusion and the second groove are in snap fit.

9. The device for adaptively adjusting the bow angle of a wire in a wire saw cutting process according to claim 8, wherein the second protrusion and the second groove are each V-shaped; the two second positioning guide blocks are oppositely arranged on two sides of the second guide post, and the two second bulges are positioned in the same vertical plane.

10. The device for adaptively adjusting the bow angle of a wire in wire saw cutting according to claim 7, wherein a second nut is sleeved on the outer periphery of the second lead screw; and a second guide rail is also connected between the two second supporting workbenches.

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