CN212398382U

CN212398382U - Lifting type electric spark machine

Info

Publication number: CN212398382U
Application number: CN202020765137.7U
Authority: CN
Inventors: 祝建铭
Original assignee: Chongqing Mingtai Precision Mould Co ltd
Current assignee: Chongqing Mingtai Precision Mould Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-26
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses an over-and-under type electric spark machine, including the tool electrode, the tool electrode passes through moving mechanism and installs on the support, be provided with the oil groove under the tool electrode, be provided with the workstation in the oil groove, the workstation pass through elevating system with the oil groove is connected, elevating system is including setting up recess on the oil groove inside wall, the recess is just to setting up, and first lead screw is installed to one of them recess internal rotation, first lead screw is connected with the outer driving motor transmission of oil groove, the cooperation has first nut on the first lead screw, another install the montant in the recess, the cooperation has the slider on the montant, the workstation pass through the connecting block respectively with first nut and slider fixed connection. The utility model has the advantages of easy assembly and disassembly, simple structure, convenient operation and wide application range.

Description

Lifting type electric spark machine

Technical Field

The utility model relates to an electric spark production technical field, concretely relates to over-and-under type electric spark machine.

Background

Electric discharge machining is a special machining method for etching and removing a conductive material by utilizing an electric erosion action generated during pulse discharge between two electrodes immersed in a working fluid (kerosene, emulsified oil, etc.), and is also called electric discharge machining or electric erosion machining. When the electric discharge machine is used for machining, the metal of the workpiece electrode is etched while the tool electrode is continuously fed to the workpiece electrode under the condition of keeping a constant discharge gap between the tool electrode and the workpiece electrode, and finally, the shape corresponding to the shape of the tool electrode is machined.

In the process of carrying out electric spark machining, because the work piece form is various, so two kinds of working solution addition modes have appeared, one is the injection type, is exactly with the mode of working solution with the injection, add the processing department at the work piece, can save working solution like this, but have the poor problem of electric conductivity, another kind is immersion type, is exactly with the work piece whole entering working solution, the electric spark machining efficiency that this kind of mode can be the biggest, but because the work piece is different, there is the problem that is difficult to satisfy the immersion condition, is unfavorable for dismouting work piece simultaneously.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a convenient dismouting, simple structure, convenient operation, wide application scope's over-and-under type electric spark machine.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a lifting type electric spark machine comprises a tool electrode, wherein the tool electrode is installed on a support through a moving mechanism, an oil groove is arranged under the tool electrode, a liquid outlet is formed in the bottom of the oil groove, a valve is arranged at the liquid outlet, a workbench is arranged in the oil groove and connected with the oil groove through a lifting mechanism, the lifting mechanism comprises a groove arranged on the inner side wall of the oil groove, the groove is arranged just opposite to the groove, a first lead screw is installed in one groove in a rotating mode and is in transmission connection with a first driving motor outside the oil groove, a first nut is matched on the first lead screw, a vertical rod is installed in the other groove, a sliding block is matched on the vertical rod, the workbench is fixedly connected with the first nut and the sliding block through connecting blocks respectively, and a vertical through hole is arranged on the workbench in a penetrating mode, the through hole is internally matched with a limiting rod, and the limiting rod is fixedly connected with the bottom of the oil groove.

When using, place the work piece on the workstation, a driving motor action, it is rotatory to drive first lead screw, vertical reciprocating motion is done on first lead screw to first nut, it goes up and down to drive the action platform, the cooperation slider moves on the montant, submerge in the oil groove with workstation and work piece, the gag lever post can slide in the through-hole, the restriction workstation produces the skew, keep the level of workstation upper surface, to add the working solution in the oil groove, add external power supply pulse respectively on tool electrode and work piece, moving mechanism drives tool electrode and reachs the processing position and carries out spark-erosion machining. The utility model discloses can realize the lift of workstation in the oil groove, lift up the workstation repeatedly, the change and the machined surface of the work piece of being convenient for switch, exert immersion electric spark machining's advantage to overcome the shortcoming of part work piece customization oil groove, promoted machining efficiency, enlarged application range.

As optimization, moving mechanism includes the rectangle frame that the level set up, the subtend is provided with the spout on the inside wall of rectangle frame, slidable mounting has the second nut in the spout, the second nut rotates with the second lead screw to be connected, the second lead screw rotates to be connected in the spout, the second lead screw is connected with the transmission of second driving motor, two connect through the connecting rod between the second nut, the last fixed surface of connecting rod installs the rack, still includes the install bin, the connecting rod runs through the install bin, the gear is installed to the install bin internal rotation, the gear with the rack toothing transmission, the gear is connected with the transmission of third driving motor, surface fixed mounting has the cylinder under the install bin, the free end of cylinder sets up downwards, the free end of cylinder with tool electrode fixed connection.

Therefore, the second driving motor synchronously rotates to drive the second lead screw to rotate, the second nut on the second lead screw rotates in the chute to further drive the connecting rod to realize translation, the third driving motor acts, the gear and the rack are meshed for transmission, the mounting box realizes translation on the connecting rod, the translation direction is perpendicular to the translation direction of the connecting rod, the cylinder drives the tool electrode to do lifting motion, the electric spark machining is facilitated, the moving mechanism can realize dead-angle-free movement on a plane, and the high-precision automation strength is high.

As an optimization, a clamping mechanism is arranged on the workbench and comprises a through groove arranged on the workbench, a third lead screw is installed in the through groove in a rotating mode, the third lead screw penetrates out of the workbench and is coaxially connected with a hand wheel, a third nut is matched on the third lead screw and is fixedly connected with a movable clamp plate, the workbench is provided with a fixed clamp plate right opposite to the movable clamp plate, and the movable clamp plate is parallel to the fixed clamp plate.

Therefore, the hand wheel is rotated to drive the third screw rod to rotate, the third nut on the third screw rod drives the movable clamp plate to move to be close to or far away from the fixed clamp plate, and the workpiece is clamped or loosened by the movable clamp plate.

As optimization, the movable clamping plate is provided with a vertical plate downwards, and the vertical plate is arranged in the through groove.

Like this, erect the version and can slide in leading to the groove, also restricted the rotatory dislocation of movable clamp plate simultaneously, the guarantee movable clamp plate is parallel with solid fixed splint all the time, ensures the stability of centre gripping.

Preferably, a liquid outlet pipe is arranged at the liquid outlet and is connected with the liquid collecting box.

Therefore, the working solution to be replaced is collected, the circulation use is convenient, the energy is saved, and the production cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the lifting electric discharge machine of the present invention.

FIG. 2 is a schematic view of the structure A-A in FIG. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In specific implementation, as shown in fig. 1-2, a lifting electric spark machine includes a tool electrode 1, the tool electrode 1 is mounted on a support 11 through a moving mechanism, an oil groove 12 is disposed under the tool electrode 1, a liquid outlet is disposed at the bottom of the oil groove 12, a valve is disposed at the liquid outlet, a workbench 13 is disposed in the oil groove 12, the workbench 13 is connected with the oil groove 12 through a lifting mechanism, the lifting mechanism includes a groove disposed on an inner side wall of the oil groove 12, the groove is disposed opposite to the groove, a first lead screw 14 is rotatably mounted in one of the grooves, the first lead screw 14 is in transmission connection with a first driving motor 15 outside the oil groove 12, a first nut 16 is fitted on the first lead screw 14, a vertical rod 17 is mounted in the other groove, a slider 18 is fitted on the vertical rod 17, the workbench 13 is respectively and fixedly connected with the first nut 16 and the slider 18 through a connecting block 19, still run through on the workstation 13 and be provided with vertical through-hole, the through-hole fit in has gag lever post 2, gag lever post 2 with oil groove 12 bottom fixed connection.

In this embodiment, the moving mechanism includes a horizontally disposed rectangular frame 21, a sliding slot is oppositely disposed on the inner side wall of the rectangular frame 21, a second nut 22 is arranged in the sliding groove in a sliding way, the second nut 22 is rotationally connected with a second lead screw 23, the second screw 23 is rotatably connected in the sliding groove, the second lead screw 23 is in transmission connection with a second driving motor 24, the two second nuts 22 are connected through a connecting rod 25, the upper surface of the connecting rod 25 is fixedly provided with a rack 26, and the connecting rod 25 also comprises a mounting box 27, the connecting rod 25 penetrates through the mounting box 27, a gear 28 is rotatably mounted in the mounting box 27, the gear 28 is in meshing transmission with the rack 26, the gear 28 is in transmission connection with a third driving motor 29, the lower surface of the mounting box 27 is fixedly provided with the cylinder 3, the free end of the cylinder 3 is arranged downwards, and the free end of the cylinder 3 is fixedly connected with the tool electrode 1.

Specifically, be provided with intake pipe and outlet duct on the cylinder 3, the intake pipe with the outlet duct is connected with the solenoid valve, the solenoid valve still is connected with the air source that plays, and the flexible volume of cylinder can accurate control like this ensures the machining precision.

In this embodiment, be provided with fixture on the workstation 13, fixture is including setting up logical groove on the workstation 13, logical inslot internal rotation installs third lead screw 31, third lead screw 31 is worn out outwards workstation 13 and hand wheel 32 coaxial coupling, the cooperation has third nut 33 on the third lead screw 31, third nut 33 and movable clamp plate 34 fixed connection, it is just right on the workstation 13 movable clamp plate 34 is provided with solid fixed splint 35, movable clamp plate 34 with gu fixed splint 35 is parallel to each other.

In this embodiment, the movable clamping plate 34 is provided with a vertical plate 36 downward, and the vertical plate 36 is arranged in the through groove.

In this embodiment, a liquid outlet pipe 37 is arranged at the liquid outlet, and the liquid outlet pipe 37 is connected with a liquid collecting box 38.

The device comprises a PLC, and is characterized in that the PLC is electrically connected with a first driving motor, a second driving motor, a third driving motor and an electromagnetic valve, and is used for controlling the cooperative matching of parts according to the actual production requirement and size of a workpiece to complete the processes of positioning, lifting of a workbench and machining.

Specifically, the PLC controller is S7-200 in model number, and belongs to the prior art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A lifting type electric spark machine is characterized by comprising a tool electrode, wherein the tool electrode is mounted on a support through a moving mechanism, an oil groove is arranged under the tool electrode, a liquid outlet is formed in the bottom of the oil groove, a valve is arranged at the liquid outlet, a workbench is arranged in the oil groove and is connected with the oil groove through a lifting mechanism, the lifting mechanism comprises a groove arranged on the inner side wall of the oil groove, the groove is just opposite to the groove, a first lead screw is rotatably mounted in one groove and is in transmission connection with a first driving motor outside the oil groove, a first nut is matched on the first lead screw, a vertical rod is mounted in the other groove, a sliding block is matched on the vertical rod, the workbench is respectively and fixedly connected with the first nut and the sliding block through a connecting block, and a vertical through hole is arranged on the workbench in a penetrating manner, the through hole is internally matched with a limiting rod, and the limiting rod is fixedly connected with the bottom of the oil groove.

2. The elevating electric discharge machine according to claim 1, wherein said moving mechanism comprises a horizontally disposed rectangular frame, the inner side wall of the rectangular frame is oppositely provided with a sliding chute, a second nut is arranged in the sliding chute in a sliding way, the second nut is rotationally connected with a second lead screw which is rotationally connected in the chute, the second screw rod is in transmission connection with a second driving motor, the two second nuts are connected through a connecting rod, the upper surface of the connecting rod is fixedly provided with a rack, the connecting rod also comprises an installation box, the connecting rod penetrates through the installation box, a gear is rotatably arranged in the mounting box, the gear is in meshed transmission with the rack, the gear is in transmission connection with a third driving motor, the surface of the mounting box is fixedly provided with an air cylinder, the free end of the air cylinder is arranged downwards, and the free end of the air cylinder is fixedly connected with the tool electrode.

3. The lifting electric spark machine according to claim 2, wherein a clamping mechanism is arranged on the worktable, the clamping mechanism comprises a through groove arranged on the worktable, a third lead screw is rotatably mounted in the through groove, the third lead screw extends out of the worktable and is coaxially connected with the hand wheel, a third nut is matched on the third lead screw, the third nut is fixedly connected with a movable clamping plate, a fixed clamping plate is arranged on the worktable and faces the movable clamping plate, and the movable clamping plate and the fixed clamping plate are parallel to each other.

4. The elevating electric discharge machine as claimed in claim 3, characterized in that the mobile clamping plate is provided with a riser downwards, which is arranged in the through-slot.

5. The elevating electric discharge machine according to claim 4, wherein a liquid outlet pipe is provided at the liquid outlet, and the liquid outlet pipe is connected with a liquid collecting tank.