CN217859189U

CN217859189U - Wire cutting machine capable of bearing heavy workpiece

Info

Publication number: CN217859189U
Application number: CN202221682431.7U
Authority: CN
Inventors: 黄树杰; 谷长明; 黄博洋
Original assignee: Suzhou Hanqi Cnc Equipment Co ltd
Current assignee: Suzhou Hanqi Cnc Equipment Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-22
Anticipated expiration: 2032-06-30

Abstract

The utility model provides a wire cutting machine tool capable of bearing heavy workpieces, comprising a bearing workbench and a wire cutting assembly which are separately arranged, wherein the wire cutting assembly comprises a fixed base positioned on one side of the bearing workbench, a movable sliding table which moves along a first direction is arranged on the fixed base, a supporting table which moves along a second direction is arranged on the movable sliding table, a wire storage mechanism and a fixed upright post are arranged on the supporting table, the wire cutting assembly also comprises an upper cantilever and a lower cantilever which are used for connecting a wire electrode, the upper cantilever and the lower cantilever vertically correspond to each other, and the end parts of the upper cantilever and the lower cantilever extend to the upper part of the bearing workbench; the upper cantilever is slidably mounted on the upper portion of the fixed upright column in the vertical direction, and the lower cantilever is fixedly mounted on the supporting table. The utility model discloses can process the great work piece of self gravity, stability is good, and the machining precision is guaranteed to the good reliability.

Description

Wire cutting machine capable of bearing heavy workpieces

Technical Field

The utility model relates to a wire cut electrical discharge machining bed technical field especially relates to a can bear wire cut electrical discharge machining bed of great work piece.

Background

The linear cutting machine is a very common mechanical device in the mechanical technical field, and comprises a slow, medium and fast wire-moving linear cutting machine. The machine body and the workbench of the traditional linear cutting machine are mostly integrally formed, when the workpiece is subjected to electric spark cutting machining, slight vibration generated among the upper wire arm of the linear cutting machine, the machining molybdenum wire and the workpiece can be transmitted to an electric control system and a servo motor along the machine base, and then the sensitivity and the machining precision of the machine tool are influenced. Moreover, when the processed workpiece reaches a certain weight, the workpiece is directly transferred to the workbench under the action of gravity, and the machine body of the common linear cutting machine cannot bear larger gravity, so that the guide rail, the screw rod pair and the like are easily crushed, and the sensitivity and the processing precision of the machine tool are easily influenced. Meanwhile, because the machine base and the workbench are integrated, the movable stroke of the workbench cannot be made large in practice, namely the stroke is limited, and a workpiece with a large size is difficult to machine.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can bear wire cut electrical discharge machining bed of great work piece for the great work piece of processing self gravity, stability is good, guarantees the machining precision.

In order to solve the technical problem, the utility model provides a wire cutting machine capable of bearing heavy workpieces, which comprises a bearing workbench and a wire cutting assembly which are separately arranged, wherein the wire cutting assembly comprises a fixed base positioned on one side of the bearing workbench, a movable sliding table moving along a first direction is arranged on the fixed base, a supporting table moving along a second direction is arranged on the movable sliding table, and the first direction is vertical to the second direction;

the wire storage mechanism and the fixed upright post are arranged on the supporting table, the wire cutting assembly further comprises an upper cantilever and a lower cantilever which are used for connecting a wire electrode, the upper cantilever and the lower cantilever vertically correspond to each other, and the end parts of the upper cantilever and the lower cantilever extend to the upper part of the bearing workbench;

the upper cantilever is arranged on the upper part of the fixed upright post in a sliding manner along the vertical direction, and the lower cantilever is fixedly arranged on the support table;

and the fixed base and the movable sliding table are both provided with limit sensors for limiting the movable sliding table and the limit position of the support table, and the limit sensors are electrically connected with a control system of the linear cutting machine.

Furthermore, the bearing workbench is provided with an end face cross beam and a side cross beam erected on the end face cross beam, the side cross beam extends along a first direction, the end face cross beam extends along a second direction, the lower cantilever extends to the position above the bearing workbench and is located below the side cross beam, and the lower cantilever is fixed in height.

Further, linear motors are arranged on the fixed base and the movable sliding table, a first guide rail assembly extending along a first direction is arranged on the fixed base, and the movable sliding table is mounted on the first guide rail assembly and moves along the first direction through the linear motors;

the movable sliding table is provided with a second guide rail assembly extending along the second direction, and the supporting table is slidably mounted on the second guide rail assembly and moves along the second direction through a linear motor.

Further, the wire storage mechanism comprises a fixed frame fixed on the support table and a wire storage barrel slidably mounted on the fixed frame, the wire storage barrel is positioned on one side of the fixed upright post, and a lower wire passing guide wheel is arranged at the lower part of the fixed upright post; and an upper wire guide wheel is arranged on the upper cantilever.

Furthermore, the fixing frame is further provided with a screw rod unit and a third guide rail assembly which extends along the first direction, and the wire storage cylinder is slidably mounted on the third guide rail assembly and moves along the first direction through the screw rod unit.

Furthermore, molybdenum wire tensioning mechanisms are arranged on the upper cantilever and the lower cantilever so as to adjust the tension of the motor wire.

Furthermore, the molybdenum wire tensioning mechanism comprises two fixing plates which are correspondingly arranged and a guide rod connected between the two fixing plates, a sliding block is sleeved on the guide rod, spring parts sleeved on the guide rod are arranged on two sides of the sliding block, and a wire conveying guide wheel is installed on the sliding block.

Furthermore, a linear driving unit is further arranged on the fixed upright post in the vertical direction, the upper cantilever is fixedly connected with the moving part of the linear driving unit, and a driving motor for driving the linear driving unit to work is arranged at the top of the fixed upright post.

Further, the fixed upright post is provided with a middle hole for installing the linear driving unit, the side edge of the fixed upright post is provided with a long hole extending along the vertical direction, and the moving part of the linear driving unit extends to the outside of the fixed upright post through the long hole and is used for connecting the upper cantilever.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a can bear wire cut electrical discharge machining bed of great work piece sets up through the wire cut electrical discharge machining subassembly separation that will be used for placing the bearing work platform of work piece and carry out processing to the work piece, through directly arranging the bearing work platform on the bottom surface in, places the processing work piece on bearing the work platform, can be suitable for the great and great work piece of size of dead weight, has avoided the too big and pressure loss lathe of weight of work piece, and then influences the machining precision. The workpiece is fixedly arranged on the bearing workbench, the upper cantilever on the wire cutting assembly can move in the three-dimensional direction and the corresponding lower cantilever can move in the two-dimensional direction of the horizontal plane, so that the workpiece is machined, the wire cutting machining is stable, the precision is high, and the wire cutting machine is suitable for heavy and large workpieces.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a preferred embodiment of the present invention;

fig. 2 is another schematic view of a preferred embodiment of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2.

Reference numbers in the figures:

1. a carrying worktable; 2. a wire cutting assembly; 3. a fixed base; 4. moving the sliding table; 5. a support table; 6. a wire storage mechanism; 7. fixing the upright post; 8. an upper cantilever; 9. a lower cantilever; 10. a limit sensor; 11. an end face cross beam; 12. a side cross member; 13. a first rail assembly; 14. a second rail assembly; 15. a linear motor; 16. a fixed mount; 17. a wire storage barrel; 18. a lower wire guide wheel; 19. an upper wire guide wheel; 21. a third rail assembly; 22. a molybdenum wire tensioning mechanism; 23. a fixing plate; 24. a guide bar; 25. a slider; 26. a spring member; 27. a wire conveying guide wheel; 28. a vertical guide rail assembly; 29. a lateral vertical guide rail assembly; 30. an installation part; 31. a linear drive unit; 32. a drive motor; 33. and a long hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a wire cutting machine capable of carrying a heavy workpiece includes a carrying table 1 and a wire cutting assembly 2 which are separately arranged, the wire cutting assembly 2 includes a fixed base 3 located at one side of the carrying table 1, a moving sliding table 4 moving along a Y-axis direction is arranged on the fixed base 3, and a supporting table 5 moving along an X-axis direction is arranged on the moving sliding table 4;

the wire storage mechanism 6 and the fixed upright post 7 are arranged on the support table 5, the wire cutting assembly 2 further comprises an upper cantilever 8 and a lower cantilever 9 which are used for connecting a wire electrode, the upper cantilever 8 corresponds to the lower cantilever 9 up and down, and the end parts of the upper cantilever 8 and the lower cantilever 9 extend to the upper part of the bearing workbench 1;

by moving the slide table 4 in the Y-axis direction, the support table 5 is moved in the X-axis direction, so that the lower boom 9 and the fixed column 7 on the support table 5 are moved in the X-axis and Y-axis directions.

In addition, go up cantilever 8 along vertical direction slidable mounting in fixed column 7 upper portion, cantilever 9 fixed mounting is in down on the brace table 5 to make last cantilever 8 can move in vertical direction, combine to remove slip table 4 and remove along the Y axle direction, brace table 5 removes along the X axle direction, realizes three-dimensional direction upward movement, thereby conveniently processes the work piece that bears on the workstation 1.

The fixed base 3 with all be equipped with spacing sensor 10 on the removal slip table 4, be used for injecing remove slip table 4 with the extreme position that the brace table 5 removed, in addition, also be equipped with the spacing sensor 10 that is used for injecing cantilever 8 moving position on the fixed post 7, spacing sensor 10 with the control system (not shown in the figure) electricity of wire cut electrical discharge machining bed is connected to the control removes the extreme position that removes in slip table 4 and the brace table 5 processing engineering, avoids the situation of crashing into.

In this embodiment, be equipped with end face crossbeam 11 and erect side crossbeam 12 on end face crossbeam 11 on bearing work platform 1, side crossbeam 12 extends along the Y axle direction, end face crossbeam 11 extends along the X axle direction, lower cantilever 9 extends to bearing work platform 1 top and is located side crossbeam 12 below, just cantilever 9 is highly fixed down, treats that the processing work piece is placed on side crossbeam 12, and lower cantilever 9 is located the below of side crossbeam 12 all the time, ensures that lower cantilever 9 is located the below of processing work piece all the time to combine cantilever 8 can treat the processing work piece and process.

Specifically, in order to ensure that the movable sliding table 4 and the support table 5 can move in the Y-axis direction and the X-axis direction respectively, linear motors are arranged on the fixed base 3 and the movable sliding table 4, a first guide rail assembly 13 extending in the Y-axis direction is arranged on the fixed base 3, and the movable sliding table 4 is mounted on the first guide rail assembly 13 and moves in the Y-axis direction through a linear motor 15;

remove and be equipped with on the slip table 4 and extend the second guide rail set spare 14 that sets up along X axle direction, 5 slidable mounting of brace table are in on the second guide rail set spare 14 to through linear electric motor 15 along X axle direction removal, linear electric motor 15 moves stably, and the speed piece, and the precision is high, guarantees processingquality.

In addition, the wire storage mechanism 6 comprises a fixed frame 16 fixed on the support table 5 and a wire storage barrel 17 slidably mounted on the fixed frame 16, the wire storage barrel 17 is positioned at one side of the fixed upright post 7, and a lower wire guide wheel 18 is arranged at the lower part of the fixed upright post 7; and an upper wire guide wheel 19 is arranged on the upper cantilever 8.

The fixing frame 16 is further provided with a screw rod unit (not shown in the figure) and a third guide rail assembly 21 extending along the Y-axis direction, the wire storage cylinder 17 is slidably mounted on the third guide rail assembly 21 and moves along the Y-axis direction through the screw rod unit, the wire storage cylinder 17 corresponds to the bearing workbench 1, the wire electrode on the wire storage cylinder 17 passes through the upper wire passing guide wheel 19, the lower wire passing guide wheel 18, the upper cantilever 8 and the lower cantilever 9, and in the using process, the screw rod unit drives the wire storage cylinder 17 to move relatively, so that the straightness of the wire electrode can be ensured, and the machining precision of a machine tool during working can be ensured.

In this embodiment, a molybdenum wire tensioning mechanism 22 is disposed on each of the upper cantilever 8 and the lower cantilever 9 to adjust the tension of the motor wire. Specifically, the molybdenum wire tensioning mechanism 22 includes two fixed plates 23 that correspond the setting and a guide rod 24 connected between two fixed plates 23, the cover is equipped with the sliding block 25 on the guide rod 24, the sliding block 25 both sides are equipped with the suit and are in the spring part 26 on the guide rod 24, install fortune silk guide pulley 27 on the sliding block 25, the electrode wire is around adorning on the sliding block 25, through the regulation and the fixed of the position of sliding block 25, realizes that the tensile force of electrode wire is adjusted and is adjusted, and wherein, the position adjustment of sliding block 25 is conventional technical means in the technical field that belongs to, and it is here not repeated.

As shown in fig. 2 and 3 again, in order to ensure that the upper suspension arm 8 can move in the Z-axis direction, the fixed upright post 7 includes a vertical guide rail assembly 28 and a lateral vertical guide rail assembly 29, the upper suspension arm 8 includes an L-shaped mounting portion 30 for slidably connecting the fixed upright post 7, a part of the mounting portion 30 is slidably connected to the vertical guide rail assembly 28, and a part of the mounting portion 30 is slidably connected to the lateral vertical guide rail assembly 29, so that the upper suspension arm 8 is slidably connected to the fixed upright post 7 in two vertical directions, the stability and reliability of the movement of the upper suspension arm 8 are ensured, and the movement accuracy of the upper suspension arm 8 in the movement direction is increased.

Meanwhile, a linear driving unit 31 arranged in the vertical direction is further arranged on the fixed upright post 7 and used for driving the upper cantilever 8 to move on the vertical guide rail assembly 28 and the side vertical guide rail assembly 29, the upper cantilever 8 is fixedly connected with a moving part of the linear driving unit 31, and a driving motor 32 for driving the linear driving unit 31 to work is arranged at the top of the fixed upright post 7.

Specifically, fixed stand 7 has and is used for the installation linear drive unit 31's mesopore, fixed stand 7's side is equipped with the slot hole 33 that extends along vertical direction, linear drive unit 31's removal portion passes through slot hole 33 extends to fixed stand 7's outside is used for connecting go up cantilever 8, linear drive unit 31's drive division is located fixed stand 7's top to be connected with driving motor 32 belt, the drive division work of work drive linear drive unit 31 through driving motor 32, and then make linear drive unit 31's removal portion move along vertical direction, connect last cantilever 8 on linear drive unit 31's removal portion along slot hole 33 synchronous motion in vertical direction, realize the Z axle direction removal of last cantilever 8.

In the using process, the position of the upper cantilever 8 in the Z-axis direction is adjusted through the work of the linear driving unit 31, the electrode wire is wound on the wire passing guide wheel, the lower wire passing guide wheel 18, the upper cantilever 8, the lower cantilever 9, the molybdenum wire tensioning mechanism 22 of the upper cantilever 8 and the molybdenum wire tensioning mechanism 22 of the lower cantilever 9, the electrode wire is adjusted, the workpiece is placed on the side cross beam 12 of the bearing workbench 1, and then the wire cutting processing is carried out on the workpiece.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A linear cutting machine capable of bearing heavy workpieces is characterized by comprising a bearing workbench and a linear cutting assembly which are separately arranged, wherein the linear cutting assembly comprises a fixed base positioned on one side of the bearing workbench, a movable sliding table moving along a first direction is arranged on the fixed base, a supporting table moving along a second direction is arranged on the movable sliding table, and the first direction is vertical to the second direction;

and the fixed base and the movable sliding table are respectively provided with a limiting sensor for limiting the movable sliding table and the limit position of the support table, and the limiting sensors are electrically connected with a control system of the linear cutting machine.

2. The wire cutting machine of claim 1 wherein the load table has end beams and side beams spanning the end beams, the side beams extending in a first direction, the end beams extending in a second direction, the lower boom extending above the load table and below the side beams, and the lower boom being fixed in height.

3. The linear cutting machine according to claim 1, wherein the fixed base and the movable sliding table are both provided with linear motors, the fixed base is provided with a first guide rail assembly extending along a first direction, and the movable sliding table is mounted on the first guide rail assembly and moves along the first direction through the linear motors;

the movable sliding table is provided with a second guide rail assembly extending along a second direction, and the supporting table is slidably mounted on the second guide rail assembly and moves along the second direction through a linear motor.

4. The wire cutting machine tool according to claim 1, wherein the wire storage mechanism comprises a fixed frame fixed on the support platform and a wire storage barrel slidably mounted on the fixed frame, the wire storage barrel is positioned at one side of the fixed upright post, and a lower wire guide wheel is arranged at the lower part of the fixed upright post; and an upper wire guide wheel is arranged on the upper cantilever.

5. The wire cutting machine according to claim 4, wherein the fixing frame is further provided with a screw rod unit and a third guide rail assembly extending along the first direction, and the wire storage barrel is slidably mounted on the third guide rail assembly and is moved along the first direction by the screw rod unit.

6. The wire-cut electrical discharge machining according to claim 1, wherein a molybdenum wire tensioning mechanism is provided on each of the upper and lower cantilevers to adjust the tension of the motor wire.

7. The wire-cutting machine tool of claim 6, wherein the molybdenum wire tensioning mechanism comprises two fixing plates correspondingly arranged and a guide rod connected between the two fixing plates, a sliding block is sleeved on the guide rod, spring parts sleeved on the guide rod are arranged on two sides of the sliding block, and a wire conveying guide wheel is arranged on the sliding block.

8. The wire electric discharge machine of claim 1, wherein the stationary mast includes a vertical guide assembly and a side vertical guide assembly, and the upper boom includes an L-shaped mounting portion for slidably coupling the stationary mast, a partial mounting portion slidably coupled to the vertical guide assembly, and a partial mounting portion slidably coupled to the side vertical guide assembly.

9. The wire cutting machine according to claim 8, wherein the fixed column is further provided with a linear driving unit arranged in a vertical direction, the upper cantilever is fixedly connected with a moving part of the linear driving unit, and the top of the fixed column is provided with a driving motor for driving the linear driving unit to work.

10. The wire electric discharge machine according to claim 9, wherein the fixed column has a central hole for mounting the linear drive unit, and a side of the fixed column is provided with a long hole extending in a vertical direction, through which a moving portion of the linear drive unit extends to an outside of the fixed column for connecting the upper boom.