CN213410693U

CN213410693U - Multi-head numerical control wire cut electrical discharge machine

Info

Publication number: CN213410693U
Application number: CN202022459302.9U
Authority: CN
Inventors: 蒋赟鑫
Original assignee: Changzhou Qingyuan Machinery Technology Co ltd
Current assignee: Changzhou Qingyuan Machinery Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-11
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a bull numerical control spark-erosion wire cutting machine bed belongs to the wire-electrode cutting processing equipment field, including frame, wire moving mechanism, workstation, be equipped with the track in the frame, wire moving mechanism is equipped with two and is located the track both sides respectively, the workstation includes work piece platform, base, support column, regulation pole and adjustment mechanism, be equipped with the guide pulley on the base, the base passes through the guide pulley and moves along the track, the support column vertical fixation is in the one side that the guide pulley was kept away from to the base, adjust the pole and wear to locate in the support column, the one end of adjusting the pole is stretched out the support column and is articulated with the work piece platform, adjustment mechanism is used for the drive to adjust the length direction removal of. This application removes the regulation pole through adjustment mechanism, has realized the regulation to the levelness of work piece platform to this has improved the machining precision of this equipment to the work piece.

Description

Multi-head numerical control wire cut electrical discharge machine

Technical Field

The application relates to the technical field of wire cutting equipment, in particular to a multi-head numerical control wire cut electric discharge machine.

Background

The numerical control wire cut electric discharge machine can directly utilize electric energy and heat energy to machine workpieces, mainly comprises a workbench, a wire moving mechanism, a liquid supply system, a pulse power supply, a control system and the like, and can machine various conductive materials which are difficult to machine by a common cutting machining method. The numerical control wire cutting processing is contour cutting processing, a forming tool electrode does not need to be designed and manufactured, the processing cost is greatly reduced, the production period is shortened, pulse discharge processing is directly carried out by utilizing electric energy, the tool electrode is not directly contacted with a workpiece, the macroscopic cutting force in mechanical processing is avoided, and the numerical control wire cutting processing is suitable for processing low-rigidity parts and small parts.

The utility model discloses a chinese utility model patent that publication number is CN203765120U discloses a numerical control planer-type bull wire cut electrical discharge machining bed, be equipped with the workstation on its lathe bed base, the workstation top is equipped with the crossbeam, be equipped with left fortune silk mechanism and right fortune silk mechanism on the crossbeam, the work piece of treating processing is placed on the workstation, the workstation is arranged in the bottom track through the guide pulley and is carrying the work piece through the track and remove, two sets of fortune silk mechanisms of left and right sides use the electrode wire of different masses respectively to carry out rough and finish respectively, accomplish the processing action.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the left and right wire conveying mechanisms are respectively positioned on two sides of the track and respectively perform machining work on workpieces with different precisions, the placing position of the workpiece on the workbench is easy to deviate to one side, so that the whole gravity center of the workbench deviates, the guide wheel and the track gradually wear along with the continuous reciprocating movement of the workbench, and the condition that the levelness of the workbench is reduced is easy to occur, so that the machining precision of the workpiece is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a multi-head numerical control wire-cut electric discharge machine in order to solve the problem that the machining precision of a workpiece is reduced due to the fact that the levelness of a workbench is reduced.

The application provides a bull numerical control spark-erosion wire cutting machine adopts following technical scheme:

the utility model provides a bull numerical control spark-erosion wire cutting machine bed, includes frame, walk silk mechanism, workstation, be equipped with the track in the frame, it is equipped with two and is located the track both sides respectively to walk silk mechanism, the workstation includes work piece platform, base, support column, regulation pole and adjustment mechanism, be equipped with the guide pulley on the base, the base passes through the guide pulley and moves along the track, the support column vertical fixation is in one side that the guide pulley was kept away from to the base, adjust the pole and wear to locate in the support column, the one end of adjusting the pole is stretched out the support column and is articulated with the work piece platform, adjustment mechanism is used for the drive to adjust the length direction removal of.

By adopting the technical scheme, the adjusting mechanism drives the adjusting rod to move axially, so that the relative height of the workpiece table and the base is adjusted, the levelness of the workpiece table is calibrated, and the processing precision of a workpiece is not easily influenced and reduced.

Optionally, the adjusting rod is an adjusting screw rod, the adjusting mechanism comprises a worm, a worm wheel and roller bearings, a limiting groove is formed in the supporting column, the worm wheel is arranged in the limiting groove, the roller bearings are respectively arranged on the two sides of the limiting groove, which are located above and below the worm wheel, and are matched with the worm wheel, the adjusting screw rod penetrates through the worm wheel and is in threaded connection with the worm wheel, a worm cylinder is fixedly connected to the side wall of the supporting column, the worm is rotatably connected with the worm cylinder, and the worm is meshed with the worm wheel.

Through adopting above-mentioned technical scheme, rotate the worm, make the worm wheel rotate, the worm wheel passes through the internal thread and transmits axial force to adjusting screw, because the axial position of worm wheel is fixed, then can make adjusting screw carry out axial displacement, and then adjusts the relative height of work piece platform and base, realizes the calibration of work piece platform levelness.

Optionally, an oil filling hole is formed in the outer wall of the worm cylinder and at a position corresponding to the meshing position of the worm wheel and the worm.

Through adopting above-mentioned technical scheme, when worm wheel and worm meshing department make transmission effect worsen because frictional force increases, inwards add lubricating oil through the oil filler point in order to improve transmission effect.

Optionally, the adjusting rod is a telescopic rod, the telescopic rod is provided with a rack portion, adjusting holes have been opened in the support column side wall, the adjusting mechanism comprises a gear and a rotating shaft, the rotating shaft is installed on the base and is connected with the base in a rotating mode, the gear is coaxially fixed with the rotating shaft, and the gear and the rack portion are meshed with the adjusting holes of the support column.

By adopting the technical scheme, the rotating shaft is rotated, and the axial force is transferred to the adjusting rod through the transmission between the gear and the rack, so that the adjusting rod moves along the axial direction, the relative height of the workpiece platform and the base is adjusted, and the levelness of the workpiece platform is calibrated.

Optionally, a gear seat is fixedly arranged on the base, bearing bearings are respectively arranged on two sides of the gear on the gear seat, and the rotating shaft is mounted on the gear seat through the bearing bearings.

Through adopting above-mentioned technical scheme, realized the relatively fixed of axis of rotation and base for adjustment mechanism operates more steadily.

Optionally, a first ratchet wheel is coaxially fixed on the rotating shaft, a first pawl is arranged on the supporting column, and the first pawl and the first ratchet wheel are matched to limit the rotation of the rotating shaft so as to limit the free descending of the telescopic rod.

By adopting the technical scheme, the self-locking of the adjusting mechanism is realized, and the influence of the sliding of the adjusting rod due to self weight on the flatness of the workpiece table in a normal state is reduced.

Optionally, a second ratchet wheel is coaxially fixed on the rotating shaft, a second pawl is arranged on the supporting column, and the second pawl and the second ratchet wheel are matched to limit the rotation of the rotating shaft so as to limit the free rise of the telescopic rod.

By adopting the technical scheme, the possibility of influence on the levelness of the workpiece table due to accidental rise of the telescopic rod caused by external reasons is reduced.

Optionally, level gauges are arranged on two side faces, facing the moving direction of the workbench, of the workpiece table.

Through adopting above-mentioned technical scheme, operating personnel accessible observes the spirit level and learns the approximate horizontality change of workstation to adjust the workstation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the adjustment mechanism and the adjustment rod are arranged, so that the leveling degree of the workbench is calibrated;

2. through the arrangement of the first ratchet wheel, the first pawl, the second ratchet wheel and the second pawl, the probability of poor levelness of the workpiece table caused by accidental movement of the adjusting rod is reduced;

3. through the arrangement of the gradienter on the side surface of the workbench, the operator can visually observe the levelness change of the workpiece table.

Drawings

Fig. 1 is a schematic structural diagram for embodying a multi-head numerical control wire-cut electric discharge machine in the embodiment of the present application.

Fig. 2 is a schematic diagram for embodying a workbench structure in the first embodiment of the present application.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic diagram for showing a structure of a workbench according to a second embodiment of the present application.

Fig. 5 is a partially enlarged view of a portion B in fig. 4.

Description of reference numerals: 1. a frame; 11. a track; 2. a wire feeding mechanism; 3. a work table; 31. a workpiece stage; 32. a base; 321. a guide wheel; 322. a gear seat; 33. a support pillar; 331. a limiting groove; 332. a worm cylinder; 333. an adjustment hole; 4. adjusting a rod; 41. adjusting the screw rod; 42. a telescopic rod; 421. a rack portion; 5. an adjustment mechanism; 51. a worm; 511. a handle; 52. a worm gear; 53. a roller bearing; 54. a gear; 55. a rotating shaft; 551. a handle; 56. a load bearing; 6. a self-locking assembly; 61. a first ratchet wheel; 62. a first pawl; 63. a second ratchet wheel; 64. a second pawl; 7. a level gauge.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a multi-head numerical control wire cut electric discharge machine.

The first embodiment is as follows:

as shown in fig. 1 and 2, the multi-head numerical control wire cut electric discharge machine comprises a frame 1, two wire feeding mechanisms 2 and a workbench 3, wherein the frame 1 is of a gantry structure, a track 11 is arranged on the frame 1, the workbench 3 can be positioned on the track 11 and driven to move through a ball screw or an electric sliding table, and the two sets of wire feeding mechanisms 2 are respectively positioned on two sides of the track 11 and respectively perform wire cutting processing with different precision on a workpiece placed on the workbench 3. Workstation 3 includes base 32, support column 33, workpiece table 31, adjust pole 4 and adjustment mechanism 5, base 32 bottom install with track 11 complex guide pulley 321, four support column 33 fixed mounting are kept away from one side of guide pulley 321 and are perpendicular with base 32 plane in base 32, wear to be equipped with in every support column 33 and adjust pole 4, it is articulated with workpiece table 31 outside support column 33 is stretched out at regulation pole 4 top, adjustment mechanism 5 is used for controlling the removal of adjusting pole 4, adjust pole 4 can follow the axial in support column 33 and carry out telescopic movement.

As shown in fig. 2 and 3, the adjusting rod 4 is an adjusting screw 41 made of high-carbon steel, the adjusting mechanism 5 is composed of a worm wheel 52, a worm 51 and a roller bearing 53, a limiting groove 331 is arranged in the supporting column 33, and the worm wheel 52 is embedded in the limiting groove 331; the roller bearings 53 are positioned at the upper side and the lower side of the worm wheel 52 in the limiting groove 331 and are matched with the worm wheel 52, a worm cylinder 332 is integrally formed on the side wall of the supporting column 33, the inner cavity of the worm cylinder 332 is connected with the inner cavity at the limiting groove 331 of the supporting column 33, one end of the worm 51 penetrates into the worm cylinder 332 and is rotatably connected with the worm cylinder 332, the worm 51 is mutually meshed with the worm wheel 52 at the inner cavity of the limiting groove 331, and the other end of the worm 51 is provided with a handle 511; the adjusting screw 41 coaxially passes through the worm gear 52 and is in threaded connection with the worm gear 52. Because the end of the adjusting rod 4 extending out of the supporting column 33 is hinged with the workpiece table 31, the adjusting screw rod 41 cannot rotate, when the worm 51 is rotated, the worm 51 drives the worm wheel 52 to rotate, the worm wheel 52 transmits torque to the adjusting screw rod 41 through internal threads, and because the upper part and the lower part of the worm wheel 52 are both provided with the roller bearings 53, the worm wheel cannot move up and down in the limiting groove 331, so that the torque can enable the adjusting screw rod 41 to move up and down, and the adjusting screw rod 41 controls the workpiece table 31 to move up or down, thereby achieving the purpose of adjusting.

As shown in fig. 1 and 2, a level 7 is provided on a side surface of the workpiece table 31 in a direction perpendicular to the rail 11, and an operator can determine a change in levelness of the workpiece table 31 based on a change indicated by the level 7. Because the level 7 can only roughly represent the levelness of the workpiece table 31, and considering the abrasion of the working plane of the workpiece table 31, uncertain factors of the workpiece and the like, when the tool is maintained on the workbench 3, a more precise measuring tool is needed to be matched with a specific workpiece for fine adjustment, and the level 7 can be calibrated through fine adjustment.

Example two:

as shown in fig. 4 and 5, the present embodiment is different from the first embodiment in that the adjusting rod 4 is a telescopic rod 42, a section of rack portion 421 is disposed on a portion of the telescopic rod 42 located on the supporting column 33, the adjusting mechanism 5 includes a gear 54, a rotating shaft 55, and a bearing 56, the rotating shaft 55 and the gear 54 are coaxially disposed, and the two are connected by a key to realize torque transmission. The base 32 of the workbench 3 is provided with a plurality of gear seats 322 for mounting the rotating shaft 55, every two gear seats 322 are used for mounting one rotating shaft 55, the two gear seats 322 are respectively positioned at the front side and the rear side of the gear 54, and the rotating shaft 55 is rotatably connected with the gear seats 322 through a bearing 56; the end of the rotating shaft 55 near the outside of the table 3 is provided with a handle 551, and the handle 551 is perpendicular to the central axis of the rotating shaft 55. An adjusting hole 333 is formed in one side face of the supporting column 33, the rack portion 421 is located at the position of the adjusting hole 333, and the gear 54 is meshed with the telescopic rod 42 at the position of the adjusting hole 333.

As shown in fig. 5, since the telescopic rod 42 is a direct bearing component of the workpiece table 31, the telescopic rod 42 will get a downward movement tendency due to gravity, and the adjusting mechanism 5 is further provided with a self-locking assembly 6; the self-locking assembly 6 comprises a first ratchet wheel 61, a first pawl 62, a second ratchet wheel 63 and a second pawl 64, the first ratchet wheel 61 and the second ratchet wheel 63 are coaxially fixed on the rotating shaft 55, and the first pawl 62 and the second pawl 64 are respectively connected with the supporting column 33 in a rotating mode. Since the telescopic rod 42, the gear 54 and the rotating shaft 55 move simultaneously, when the telescopic rod 42 descends due to gravity, the telescopic rod transmits torque to the rotating shaft 55 through meshing transmission, and the first ratchet wheel 61 and the first pawl 62 can generate reverse torque to prevent the rotating shaft 55 from rotating; when the telescopic rod 42 is raised due to uncertainty factors during the production process, the second ratchet wheel 63 and the second pawl 64 can generate a reverse torque to prevent the rotation of the rotating shaft 55, so as to achieve the purpose of self-locking.

The implementation principle of the multi-head numerical control wire-cut electric discharge machine in the embodiment of the application is as follows:

when a linear cutting machine carries out plate-type workpiece processing, the levelness of the workpiece placement is an important factor influencing the processing quality. The workpiece table 31 of the table 3 is connected to the adjustment lever 4, and the adjustment lever 4 directly receives the entire weight of the workpiece table 31, and the adjustment lever 4 directly determines the levelness, height, and the like of the workpiece table 31. When the worktable 3 inclines to one side due to the asymmetrical abrasion of the guide wheel 321, the workpiece table 31 also inclines along with the guide wheel, so that the horizontal height of the workpiece table 31 is different, at this time, the adjusting mechanism 5 can control the axial movement of the adjusting rod 4 to adjust the height of the corresponding position of the workpiece table 31, and the leveling instrument 7 is used for assisting adjustment by an equivalent tool, so that the levelness of the workpiece table 31 is calibrated. When one side of the workbench 3 is lower, the adjusting mechanism 5 corresponding to the side is operated to lift the adjusting rod 4, or the adjusting mechanism 5 positioned on the opposite side is operated to lower the adjusting rod 4, and finally the levelness of the workpiece table 31 meets the processing requirement.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bull numerical control spark-erosion wire cutting machine bed, includes frame (1), wire feeding mechanism (2), workstation (3), be equipped with track (11) in frame (1), wire feeding mechanism (2) are equipped with two and are located track (11) both sides respectively, its characterized in that: workstation (3) are including work piece platform (31), base (32), support column (33), regulation pole (4) and adjustment mechanism (5), be equipped with guide pulley (321) on base (32), base (32) are passed through guide pulley (321) and are removed along track (11), one side of guide pulley (321) is kept away from in support column (33) vertical fixation base (32), adjust pole (4) and wear to locate in support column (33), the one end of adjusting pole (4) is stretched out support column (33) and is articulated with work piece platform (31), adjustment mechanism (5) are used for the drive to adjust the length direction removal of pole (4) along support column (33).

2. The multi-head numerical control wire-cut electric discharge machine according to claim 1, characterized in that: the adjusting rod (4) is an adjusting screw rod (41), the adjusting mechanism (5) comprises a worm (51), a worm wheel (52) and a roller bearing (53), a limit groove (331) is arranged in the supporting column (33), the worm wheel (52) is arranged in the limit groove (331), the roller bearing (53) is respectively arranged at the upper side and the lower side of the worm wheel (52) in the limit groove (331) and is matched with the worm wheel (52), the adjusting screw rod (41) penetrates through the worm wheel (52) and is in threaded connection with the worm wheel (52), the side wall of the supporting column (33) is fixedly connected with a worm cylinder (332), the worm (51) is rotatably connected with the worm cylinder (332), and the worm (51) is meshed with the worm wheel (52).

3. The multi-head numerical control wire-cut electric discharge machine according to claim 2, characterized in that: and an oil filling hole is formed in the outer wall of the worm cylinder (332) and at the corresponding position where the worm wheel (52) is meshed with the worm (51).

4. The multi-head numerical control wire-cut electric discharge machine according to claim 1, characterized in that: adjust pole (4) and be telescopic link (42), telescopic link (42) are equipped with rack portion (421), regulation hole (333) have been seted up to support column (33) lateral wall, adjustment mechanism (5) include gear (54) and axis of rotation (55), axis of rotation (55) are installed on base (32) and are connected rather than rotating, gear (54) and axis of rotation (55) coaxial fixed, gear (54) and rack portion (421) are located regulation hole (333) department meshing of support column (33).

5. The multi-head numerical control wire-cut electric discharge machine according to claim 4, characterized in that: the gear rack is characterized in that a gear seat (322) is fixedly arranged on the base (32), bearing bearings (56) are respectively arranged on two sides of a gear (54) on the gear seat (322), and the rotating shaft (55) is installed on the gear seat (322) through the bearing bearings (56).

6. The multi-head numerical control wire-cut electric discharge machine according to claim 4, characterized in that: a first ratchet wheel (61) is coaxially fixed on the rotating shaft (55), a first pawl (62) is arranged on the supporting column (33), and the first pawl (62) is matched with the first ratchet wheel (61) to limit the rotation of the rotating shaft (55) so as to limit the free descending of the telescopic rod (42).

7. The multi-head numerical control wire-cut electric discharge machine according to claim 6, characterized in that: a second ratchet wheel (63) is coaxially fixed on the rotating shaft (55), a second pawl (64) is arranged on the supporting column (33), and the second pawl (64) is matched with the second ratchet wheel (63) to limit the rotation of the rotating shaft (55) so as to limit the free ascending of the telescopic rod (42).

8. The multi-head numerical control wire-cut electric discharge machine according to claim 1, characterized in that: and two side surfaces of the workpiece table (31) facing to the moving direction of the workbench (3) are provided with gradienters (7).