CN217122021U - Wire-breaking protection device of linear cutting machine - Google Patents
Wire-breaking protection device of linear cutting machine Download PDFInfo
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- CN217122021U CN217122021U CN202220540815.9U CN202220540815U CN217122021U CN 217122021 U CN217122021 U CN 217122021U CN 202220540815 U CN202220540815 U CN 202220540815U CN 217122021 U CN217122021 U CN 217122021U
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Abstract
The utility model provides a wire cutting machine bed broken wire protection device, including dismantling the installation mainboard that is fixed in on the wire cutting machine bed, be fixed in the support fixed block on the installation mainboard, run through the elastic connection spare that supports fixed block and be on a parallel with ground setting, locate the guide pulley mount pad of elastic connection spare one end, locate the first guide pulley on the guide pulley mount pad, locate the second guide pulley on the installation mainboard, and be fixed in on the installation mainboard and connecting wire cutting machine bed control system's inductive switch, inductive switch's trigger end is located the guide pulley mount pad and keeps away from one side of supporting the fixed block, the guide pulley mount pad can support the fixed block to be close to or keep away from the support fixed block in elastic connection spare's deformation journey. The utility model overcomes current wire cut electrical discharge machining bed tensioning protection device easily takes place the mistake and touches the problem that the control accuracy of shutting down, protection control is low, can effectively promote the reliability of disconnected silk protection, and the personal safety and the equipment safety of protection operation process reduce the consume, practice thrift the cost.
Description
Technical Field
The utility model relates to a wire cut electrical discharge machining bed automatic safety device technical field, more specifically relates to a wire cut electrical discharge machining bed broken wire protection device.
Background
The basic working principle of wire cutting is to use a continuously moving fine metal wire (called wire electrode) as an electrode to perform pulse spark discharge to remove metal and cut and shape a workpiece. The linear cutting is mainly used for processing various workpieces with complex shapes and fine precision, for example, the linear cutting can be used for processing a punch, a die, a punch-die, a fixed plate, a stripper plate and the like of a blanking die, and the forming cutter, a sample plate and the linear cutting can be used for processing various fine holes, narrow slits, arbitrary curves and the like.
Tension between the wire electrode and each guide wheel of the wire cutting machine tool is gradually weakened in the machining process, even if the wire electrode is not broken, the wire electrode can be separated from a conductive block in an original protection device under the condition that the wire electrode is loose, and the phenomenon of shutdown caused by false wire breakage is caused. The existing wire-breaking shutdown protection device of a wire cutting machine tool changes the trend of a molybdenum wire by adding an adjusting frame between a machine frame and a wire storage cylinder and utilizing a balancing weight of the adjusting frame to form a protection device matched with an inductive proximity switch. However, the existing tensioning protection device still has some problems in the scheme of tensioning the electrode wire by means of the gravity of the balancing weight, the electrode wire is continuously confronted with the self gravity of the balancing weight to tension the electrode wire, the electrode wire deforms due to the fact that the tension of the electrode wire is weakened in the using process, and therefore the balancing weight falls to a certain extent, when the electrode wire deforms to reach a certain length, false triggering on an inductive proximity switch easily occurs, the probability of occurrence of false action of a cut-off wire cutting machine is high, the control precision of protection control is low, and machining efficiency and precision can be affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome current wire cut electrical discharge machining bed tensioning protection device and easily take place the mistake and touch the problem that the control accuracy of shutting down, protection control is low, provide a wire cut electrical discharge machining bed broken wire protection device. The utility model discloses can effectively promote the reliability of disconnected silk protection, the personal safety and the equipment safety of protection operation process reduce the consume, practice thrift the cost.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a wire-cut electrical discharge machining bed broken wire protection device, including dismantling the installation mainboard that is fixed in on the wire-cut electrical discharge machining bed, be fixed in the support fixed block on the installation mainboard, run through the elastic connection spare that supports fixed block and be on a parallel with ground setting, locate the guide pulley mount pad of elastic connection spare one end, locate the first guide pulley on the guide pulley mount pad, locate the second guide pulley on the installation mainboard, and be fixed in on the installation mainboard and connecting wire-cut electrical discharge machining bed control system's inductive switch, inductive switch's trigger end is located one side that the support fixed block was kept away from to the guide pulley mount pad, the guide pulley mount pad can be in the deformation journey of elastic connection spare to support the fixed block and be close to or keep away from and support the fixed block.
Thus, the utility model discloses an elastic connection spare keeps parallel arrangement with ground, realize antagonizing to the tensioning force of wire cut electrical discharge machining electrode silk through the compression elasticity that utilizes elastic connection spare, be different from the mode that adopts the balancing weight to utilize the tensioning force of gravity and wire cut electrical discharge machining electrode silk to carry out antagonism, the size of the compression elasticity of elastic connection spare is adjusted to the accessible carries out reasonable adjustment to the tensile force of electrode silk, the gravity of connecting elastic connection spare's guide pulley mount pad can not become the factor that the electrode silk warp, it is more reliable and more stable to compare in the mode that adopts the gravity of balancing weight to carry out the tensioning, and elasticity accessible adjustment elastic connection spare's compression elasticity is adjusted, with the required tensile force of different electrode silks under the adaptation different processing work condition. Simultaneously, when the disconnection of electrode wire takes place, support the fixed block and trigger inductive switch, inductive switch is connected with wire cut electrical discharge machining's control system, cuts off all actions of wire cut electrical discharge machining bed in step, guarantee operating personnel's that can the maximize personal safety and equipment safety.
The utility model discloses a theory of operation does: the installation main board is fixed on a wire cutting machine through screws and the like, the electrode wire reversely bypasses a first guide wheel and a second guide wheel, so that the electrode wire generates a reverse stretching and tensioning effect between the first guide wheel and the second guide wheel, the electrode wire generates a compression force on a guide wheel installation seat for fixing the first guide wheel at the moment, an elastic connecting piece is compressed, and an elastic force resisting the compression force is generated; when the wire electrode is disconnected in the working process, the elastic force of the elastic connecting piece enables the guide wheel mounting seat to tend to restore to the original position, when the elastic connecting piece restores to the normal state, the guide wheel mounting seat reaches the triggering end of the induction switch to trigger the induction switch, and the control system of the wire cutting machine immediately stops all actions, so that the safety protection in the wire cutting process is realized, the reliability of wire breakage protection can be effectively improved, the loss of the wire electrode is reduced, and the cost is saved.
Furthermore, elastic connecting piece is including running through the guide arm that supports the fixed block, and the one end of guide arm is equipped with stopper and other end and connects the guide pulley mount pad, still overlaps on the guide arm to be equipped with and to be located the guide pulley mount pad and support the first spring between the fixed block.
It should be noted that, the maximum value of the deformation range of the first spring can enable the guide wheel mounting seat to trigger the inductive switch, after the first spring is compressed, the guide rod extends out of a distance from the other end of the supporting fixing block, when the wire electrode is disconnected, the compression state of the first spring is relieved, the guide rod drives the guide wheel mounting seat to be close to the inductive switch until the guide rod is limited by the limiting block, and the inductive switch is triggered, so that accurate protection control is realized.
Furthermore, a second spring positioned between the limiting block and the supporting fixing block is sleeved on the guide rod. Like this, increase the second spring, can guarantee at the in-process of kick-backing, the return of guide pulley mount pad is reliable and more stable, improves the life of device.
Furthermore, the limiting block is an adjusting nut, and an external thread matched with the adjusting nut is arranged on the outer side wall of the guide rod. Like this, through rotatory adjusting nut, can enough adjust the elasticity size of second spring to adjust the initial condition and the elasticity range of first spring, the required tensile force of different wire electrodes under the regulation that can be more nimble is in order to adapt to different processing operating modes.
Furthermore, there are two sets of elastic connecting pieces, and the two sets of elastic connecting pieces are parallel to each other and symmetrically arranged on the supporting fixing block. Thus, the two groups of elastic connecting pieces can ensure that the guide wheel mounting seat moves more stably and reliably.
Furthermore, the inductive switch is a non-contact inductive switch, and the minimum distance between the inductive switch and the guide wheel mounting seat is larger than 3mm-5 mm.
Further, the inductive switch is one of an infrared inductive switch, an inductive switch or an electromagnetic inductive switch. Therefore, through the non-contact type induction switch, the damage of the induction switch can be reduced and the service life of the induction switch is prolonged because the triggering process is not in direct contact.
Furthermore, the inductive switch is a contact inductive switch, and the minimum distance between the inductive switch and the guide wheel mounting seat is smaller than or equal to zero. It should be noted that the contact inductive switch is more accurately protected and controlled, and the possibility of error shutdown caused by error induction is avoided.
Furthermore, the cutting machine further comprises an audible and visual alarm connected with a control system of the cutting machine, and the audible and visual alarm is arranged on the installation main board. Therefore, the audible and visual alarm can quickly give an alarm to the staff, prompt the shutdown alarm of the linear cutting machine tool and promote the staff to process as soon as possible.
Furthermore, a connecting fixing seat is further arranged on the installation main board, and the second guide wheel is arranged on the connecting fixing seat. Like this, because first guide pulley and second guide pulley all can receive the effect of tensioning force under operating condition, can further guarantee the connection stability of second guide pulley through addding to connect the fixing base.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an elastic connection spare keeps parallel arrangement with ground, realize antagonizing to the tensioning force of wire cut electrical discharge machining electrode silk through the compression elasticity that utilizes elastic connection spare, be different from the mode that adopts the balancing weight to utilize the tensioning force of gravity and wire cut electrical discharge machining electrode silk to carry out antagonism, the size of the compression elasticity of elastic connection spare is adjusted to the accessible carries out reasonable adjustment to the tensile force of electrode silk, the gravity of connecting elastic connection spare's guide pulley mount pad can not become the factor that the electrode silk warp, it is more reliable and more stable to compare in the mode that the gravity that adopts the balancing weight carries out the tensioning, and elasticity accessible adjustment elastic connection spare's compression elasticity is adjusted, with the required tensile force of different electrode silks under the adaptation different processing work condition.
(2) The utility model discloses a flexible connectors, guide pulley mount pad and inductive switch's cooperation, when taking place the wire electrode disconnection, support the fixed block and trigger inductive switch, inductive switch is connected with wire cut electrical discharge machining's control system, and all actions of synchronous cutting off wire cut electrical discharge machining bed, guarantee operating personnel's that can the maximize personal safety and equipment safety.
Drawings
Fig. 1 is a schematic structural view of the wire breakage protection device of the center wire cutting machine of the present invention;
fig. 2 is a schematic structural view of the wire breakage protection device of the center wire cutting machine according to another view angle of the present invention;
FIG. 3 is a schematic connection diagram of the elastic connecting member of the present invention;
FIG. 4 is a schematic view of the working state of the center line cutting machine according to the present invention;
fig. 5 is a schematic view showing the wire electrode disconnection of the centerline cutting machine of the present invention.
The graphic symbols are illustrated as follows:
1-installing a main board, 11-connecting a fixed seat, 2-supporting a fixed block, 3-elastic connecting pieces, 31-guide rods, 32-limiting blocks, 33-first springs, 34-second springs, 4-guide wheel installation, 5-first guide wheels, 6-second guide wheels, 7-induction switches, 8-linear cutting machine tools and 9-electrode wires.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Example 1
As shown in fig. 1 to 3, a wire breakage protection device for a wire cutting machine, including installing mainboard 1 detachably fixed on a wire cutting machine 8, be fixed in supporting fixed block 2 on installing mainboard 1, run through elastic connecting piece 3 that supports fixed block 2 and set up in parallel with ground, locate guide wheel mount pad 4 of 3 one ends of elastic connecting piece, locate first guide wheel 5 on guide wheel mount pad 4, locate second guide wheel 6 on installing mainboard 1, and be fixed in installing mainboard 1 on and connecting wire cutting machine 8 control system's inductive switch 7, inductive switch 7's trigger end is located guide wheel mount pad 4 and keeps away from one side of supporting fixed block 2, guide wheel mount pad 4 can be close to or keep away from supporting fixed block 2 to supporting fixed block 2 in the deformation journey of elastic connecting piece 3.
Like this, this embodiment keeps parallel arrangement through elastic connection spare 3 and ground, realize antagonizing the tensioning force of wire electrode 9 of wire cut electrical discharge machining bed 8 through the compression elasticity that utilizes elastic connection spare 3, be different from the mode that adopts the balancing weight to utilize the tensioning force of gravity and wire electrode 9 of wire cut electrical discharge machining bed 8 to antagonize, the accessible is adjusted the size of the compression elasticity of elastic connection spare 3 and is carried out reasonable adjustment to the tensile force of wire electrode 9, the gravity of the guide pulley mount pad 4 of connecting elastic connection spare 3 can not become the factor that wire electrode 9 warp, it is more reliable and more stable than the mode that adopts the gravity of balancing weight to carry out the tensioning, and the compression elasticity of elasticity accessible adjustment elastic connection spare 3 is adjusted, with the required tensile force of different wire electrodes 9 under the different processing operating modes of adaptation. Meanwhile, when the wire electrode 9 is disconnected, the supporting fixing block triggers the inductive switch 7, the inductive switch 7 is connected with a control system of the wire cutting machine, all actions of the wire cutting machine tool 8 are cut off synchronously, and personal safety and equipment safety of operators can be guaranteed to the maximum extent.
As shown in fig. 2 and 3, the elastic connecting member 3 includes a guide rod 31 penetrating through the supporting fixing block 2, one end of the guide rod 31 is provided with a stopper 32, the other end of the guide rod 31 is connected with the guide wheel mounting seat 4, and the guide rod 31 is further sleeved with a first spring 33 located between the guide wheel mounting seat 4 and the supporting fixing block 2.
The maximum value of the deformation range of the first spring 33 can enable the guide wheel mounting seat 4 to trigger the inductive switch 7, when the first spring 33 is compressed, the guide rod 31 extends out of a distance from the other end of the supporting fixing block 2, when the wire electrode 9 is disconnected, the compression state of the first spring 33 is relieved, the guide rod 31 drives the guide wheel mounting seat 4 to be close to the inductive switch 7 until being limited by the limiting block 32, and the inductive switch 7 is triggered to realize accurate protection control.
As shown in fig. 3, the guide rod 31 is further sleeved with a second spring 34 located between the limiting block 32 and the supporting fixing block 2. Like this, increase second spring 34, can guarantee at the in-process of kick-backing, the return of guide pulley mount pad 4 is reliable and more stable, improves the life of device.
As shown in fig. 1 and 3, there are two sets of elastic connecting members 3, and the two sets of elastic connecting members 3 are parallel to each other and symmetrically disposed on the supporting fixing block 2. Thus, the two groups of elastic connecting pieces can ensure that the guide wheel mounting seat 4 moves more stably and reliably.
In this embodiment, the inductive switch 7 is a non-contact inductive switch, and the minimum distance between the inductive switch 7 and the guide wheel mounting base 4 is greater than 4 mm.
In this embodiment, the inductive switch 7 is an inductive switch. Thus, by the non-contact inductive switch, the damage of the inductive switch 7 can be reduced and the service life of the inductive switch 7 can be prolonged because the trigger process is not in direct contact.
The working principle of the embodiment is as follows:
as shown in fig. 4, the mounting main board 1 is fixed on a linear cutting machine 8 by screws, the wire electrode 9 reversely bypasses the first guide wheel 5 and the second guide wheel 6, so that the wire electrode 9 generates a reverse tensile and tensioning action between the first guide wheel 5 and the second guide wheel 6, at this time, the wire electrode 9 generates a compression force on the guide wheel mounting seat 4 fixing the first guide wheel 5, so that the elastic connecting member 3 is compressed to generate an elastic force resisting the compression force, and the tensioning force required by different wire electrodes 9 under different processing conditions can be adapted by adjusting the elastic force of the elastic connecting member 3, and after the wire electrode 9 is mounted, if the wire electrode 9 is aged and deformed, the elastic force of the elastic connecting member 3 can be adjusted to match the looseness of the wire electrode 9 due to deformation;
as shown in fig. 5, when the wire electrode 9 is disconnected during operation, the elastic force of the elastic connecting member 3 makes the guide wheel mounting seat 4 tend to return to the original position, and when the elastic connecting member 3 returns to the normal state, the guide wheel mounting seat 4 reaches the trigger end of the inductive switch 7 to trigger the inductive switch 7, and the control system of the wire cutting machine 8 immediately stops all actions, so as to realize safety protection during the wire cutting process, effectively improve the reliability of wire breakage protection, reduce the loss of the wire electrode 9, and save the cost.
Example 2
This embodiment is similar to embodiment 1, except that in this embodiment: the limiting block 32 is an adjusting nut, and an external thread matched with the adjusting nut is arranged on the outer side wall of the guide rod 31. Therefore, by rotating the adjusting nut, the elastic force of the second spring 34 can be adjusted, so that the initial state and the elastic range of the first spring 33 can be adjusted, and the tensioning force required by different electrode wires 9 under different processing working conditions can be adjusted more flexibly.
Other structures and principles of this embodiment are the same as those of embodiment 1.
Example 3
This embodiment is similar to embodiment 1, except that in this embodiment: the inductive switch 7 is a contact inductive switch, and the minimum distance between the inductive switch 7 and the guide wheel mounting seat 4 is smaller than zero; specifically, the inductive switch is a push-type contact switch. The contact type inductive switch is more accurate in protection and control, and the possibility of error shutdown caused by error induction is avoided.
Other structures and principles of this embodiment are the same as those of embodiment 1.
Example 4
This embodiment is similar to embodiment 1, except that in this embodiment: the cutting machine further comprises an audible and visual alarm connected with a control system of the cutting machine tool 8, and the audible and visual alarm is arranged on the installation main board 1. Therefore, the audible and visual alarm can quickly give an alarm to the staff, so as to prompt the staff to stop and give an alarm when the wire cutting machine tool 8 is cut off, and promote the staff to process as soon as possible.
Other structures and principles of this embodiment are the same as those of embodiment 1.
Example 5
This embodiment is similar to embodiment 1, except that in this embodiment: still be equipped with on the installation mainboard 1 and connect fixing base 11, second guide pulley 6 is located and is connected on fixing base 11. Like this, because first guide pulley 5 and second guide pulley 6 all can receive the effect of tensioning force under operating condition, can further guarantee that the connection of second guide pulley 6 is stable through addding and connecting fixing base 11
Other structures and principles of this embodiment are the same as those of embodiment 1.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. 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 claims of the present invention.
Claims (10)
1. The wire breakage protection device of the wire cutting machine is characterized by comprising an installation main board (1) detachably fixed on the wire cutting machine, a supporting fixed block (2) fixed on the installation main board (1), an elastic connecting piece (3) penetrating through the supporting fixed block (2) and arranged in parallel with the ground, a guide wheel installation seat (4) arranged at one end of the elastic connecting piece (3), a first guide wheel (5) arranged on the guide wheel installation seat (4), and a second guide wheel (6) arranged on the installation main board (1), and an inductive switch (7) fixed on the installation main board (1) and connected with a wire cutting machine control system, the trigger end of the inductive switch (7) is positioned at one side of the guide wheel mounting seat (4) far away from the supporting fixed block (2), the guide wheel mounting seat (4) can move relative to the supporting fixing block (2) in the deformation stroke of the elastic connecting piece (3).
2. The wire breakage protection device of the wire cutting machine according to claim 1, wherein the elastic connecting piece (3) comprises a guide rod (31) penetrating through the supporting fixing block (2), one end of the guide rod (31) is provided with a limiting block (32), the other end of the guide rod is connected with the guide wheel mounting seat (4), and a first spring (33) located between the guide wheel mounting seat (4) and the supporting fixing block (2) is further sleeved on the guide rod (31).
3. The wire breakage protection device of the wire cutting machine according to claim 2, characterized in that a second spring (34) positioned between the limiting block (32) and the supporting and fixing block (2) is further sleeved on the guide rod (31).
4. The wire breakage protection device of the linear cutting machine according to claim 3, wherein the limiting block (32) is an adjusting nut, and an external thread matched with the adjusting nut is arranged on the outer side wall of the guide rod (31).
5. The wire breakage protection device of the wire cutting machine according to claim 4, characterized in that the two groups of elastic connecting pieces (3) are arranged in parallel and symmetrically on the supporting and fixing block (2).
6. The wire breakage protection device of the wire cutting machine according to claim 1, wherein the inductive switch (7) is a non-contact inductive switch, and the minimum distance between the inductive switch (7) and the guide wheel mounting seat (4) is greater than 3mm-5 mm.
7. A wire breakage protection device for a wire cutting machine according to claim 6, wherein the inductive switch (7) is one of an infrared inductive switch, an inductive switch or an electromagnetic inductive switch.
8. The wire breakage protection device of the wire cutting machine according to claim 1, wherein the inductive switch (7) is a contact inductive switch, and the minimum distance between the inductive switch (7) and the guide wheel mounting seat (4) is less than or equal to zero.
9. The wire breakage protection device of the linear cutting machine according to claim 1, characterized by further comprising an audible and visual alarm connected with a control system of the linear cutting machine, wherein the audible and visual alarm is arranged on the mounting main board (1).
10. The wire breakage protection device of the wire cutting machine according to claim 1, wherein the mounting main board (1) is further provided with a connecting fixing seat (11), and the second guide wheel (6) is arranged on the connecting fixing seat (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220540815.9U CN217122021U (en) | 2022-03-10 | 2022-03-10 | Wire-breaking protection device of linear cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220540815.9U CN217122021U (en) | 2022-03-10 | 2022-03-10 | Wire-breaking protection device of linear cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217122021U true CN217122021U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220540815.9U Active CN217122021U (en) | 2022-03-10 | 2022-03-10 | Wire-breaking protection device of linear cutting machine |
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| Country | Link |
|---|---|
| CN (1) | CN217122021U (en) |
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- 2022-03-10 CN CN202220540815.9U patent/CN217122021U/en active Active
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