CN217965161U - Modular multi-station combined electric spark machining device - Google Patents

Abstract

The utility model discloses a modularization multistation combination spark-erosion machining device fixes at the clamping of lathe head structurally, and removal through the lathe workstation, perhaps different electrode module configuration realize the processing of multistation continuous positioning. The square shaft is fixed through the clamping structure below the machine tool head, the square shaft is connected with the cross arm, the electrode connecting plate is arranged through the cross arm, so that the modular electrode is installed, the electrode connecting plate is used for installing the electrode, the counter weight is further arranged on one side of the square shaft, the balance of gravity is realized, and the stability and the positioning precision of the machine tool head in the electric spark machining operation process are guaranteed. The utility model discloses still have the electric spark shaping requirement of nimble quick processing adaptation different geometric shapes.

Description

Modular multi-station combined electric spark machining device

Technical Field

The utility model belongs to metal spark-erosion machining technique, concretely relates to modularization multistation combination spark-erosion machining device.

Background

The electric discharge machining is a method of machining a workpiece by an electroerosion action of pulse discharge between a tool electrode and a workpiece electrode in a certain medium, and is a method of machining using electricity or heat energy.

The electric spark forming technology is widely applied to the mechanical manufacturing industry as an important manufacturing method of mechanical precision parts. The clamping mode and the positioning precision of the electrode plate machined by the electric spark are important in the machining process, and the machining quality, efficiency and economic benefit are determined. Therefore, the positioning accuracy, the convenience of adjustment, the working reliability and the like of the electric discharge machining electrode device are the most concerned problems for using and evaluating the check machining process device.

The utility model discloses combine the defect of product in the in-service use process, mainly to the combined machining of electric spark machining device on the lathe, change the action and provide the mode of a convenient operation.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the be not enough to above-mentioned prior art, the utility model provides a modularization multistation combination spark-erosion machining device, the device solve spark-erosion combination processing, modularization installation and processing positioning accuracy problem.

The technical scheme is as follows: a modularized multi-station combined electric spark machining device is fixed through a machine tool head, the lower portion of the machine tool head is connected with a square shaft at the end of a cross arm through a clamping structure, a plurality of groups of electrode connecting plates are arranged on the cross arm, and the electrode connecting plates are used for mounting electrodes; a counterweight plate is arranged on one side of the square shaft and used for balancing a cross arm on the other side of the square shaft;

and a processing groove is arranged below the cross arm, is supported by the machine tool platform, and is internally provided with a supporting plate for supporting a workpiece.

The electrode connecting plates are provided with two or more groups, and electrodes are independently installed through the electrode connecting plates.

And a height gauge for measuring the distance between the machine tool head and the machine tool platform is arranged between the machine tool head and the machine tool platform.

In the device, in order to realize the free adjustment of the electric spark machining height, a telescopic device is arranged between the clamping structure and the square shaft, and the height of a cross arm provided with an electrode is controlled through the telescopic device.

The counterweight plates are arranged through counterweight shafts, and the counterweight plates are increased or decreased through the counterweight shafts.

In order to facilitate the fixation of the workpiece, a clamping assembly of the workpiece is arranged in the processing groove.

Furthermore, the grids in the processing tank are arranged into a plurality of grids, the grid tanks are used for containing processing media, and the processing media flow among the grid tanks through the through holes at the bottom.

Has the advantages that: compare with current spark-erosion machining mechanism, the utility model discloses a xarm and square shaft set up the electrode connecting plate, and set up a set of and above, can modular installation electrode through the electrode connecting plate, have realized the convenience of changing the maintenance. Furthermore, the utility model discloses a square shaft connects more firm, sets up the equilibrium that has improved the xarm through the combination of counter weight axle and counter weight dish in its one side. And further optimization, the height gauge is adopted to control the adjustment and control of the electric spark machining height, and meanwhile, a telescopic device can be adopted between a clamping structure below the machine head and the square shaft to further control the gap between the electric spark and the workpiece, so that the machining effect is further controlled.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to explain the technical solution of the present invention in detail, the following description is further made with reference to the accompanying drawings.

The electric spark machining invented in the 40 th of the 20 th century created a method for machining hard workpieces with soft tools without relying on mechanical force, and laser machining appeared after the 50 th. These machining methods do not use a shaping tool, but use a very high-density energy beam for machining. The method has great applicability and development potential for special processing of high-hardness materials and special parts with complex shapes and precision. The prior art includes application in a special laser machining technology, such as a laser electric spark combined machining device and a working method thereof (CN 201910191616.4), and through the prior art, the existing electric spark machining tool and device are still very complex, so that the combined arrangement and combined machining operation of different electric spark stations are inconvenient to realize.

The utility model discloses combine prior art's necessary technological basis in spark-erosion machining mechanism, the utility model provides a modularization multistation combination spark-erosion machining device, the device comprises clamping, counter weight iron, xarm, square shaft, electrode connecting plate, counter weight axle and electrode etc. and the electrode connecting plate of installation can carry out different geometric shapes's spark-erosion machining to the work piece through the same or different electrode module of configuration on the xarm. The utility model discloses fix at the clamping of lathe head structural, realize the processing of multistation continuous location through the removal of lathe workstation, perhaps different electrode module configuration. The utility model discloses have the xarm and hang a plurality of electrodes, realize different processing requirements through changing different electrode module. The electric spark forming machine has the characteristic of flexibly and quickly processing electric spark forming requirements of different geometric shapes. Can move through the lathe workstation, fix a position the processing position in succession, realize the parts machining of different stations, have modularization, multistation combination, high-efficient quick replacement, the reliable characteristic in location.

The following is a brief description of the related working principle and connection structure related to the present invention.

In the prior art, electrical discharge machining is based on the phenomenon of electroerosion during pulsed electrical discharge between a tool and a workpiece (positive and negative electrodes) to remove excess metal to achieve predetermined machining requirements for the size, shape and surface quality of the workpiece.

The operating principle of the device is as follows: the device is used for mounting and positioning the anode of the tool for electric spark machining. The device comprises a clamping assembly, a counterweight iron, a cross arm, a square shaft, an electrode connecting plate, a counterweight shaft, an electrode and the like, wherein the electrode connecting plate arranged on the cross arm can realize the electric spark machining of different geometric shapes by configuring different electrode modules. The electrode is also lossy during machining, but less than the amount of metal removed from the workpiece, or even nearly lossless. It should be noted that the utility model discloses at the both sides of lathe locomotive portion dress counter weight and xarm, make the barycenter of device can keep in aircraft nose axle center department, device positioning accuracy remains stable. Due to the multi-station clamping and positioning design, the electrodes can be flexibly arranged, and modularization is realized.

Specifically, as shown in fig. 1. A modularized multi-station combined electric spark machining device is fixedly arranged on a machine tool to realize machining operation. Firstly, set up the subassembly of spark-erosion machining through machine tool head 6, but the portable operation that machine tool head 6 realized, to this, can adopt the arm to replace in some other applications to machine tool head 6, it includes the electric cabinet, belongs to the technique that should learn by the spark-erosion machining technique in this field to operations such as electric cabinet, and the no longer repeated here. Lower part of machine head 6, fix square shaft 11 through clamping structure 3, adopt more firm of square shaft 11, on the right side of square shaft 11, for the xarm 12 of connecting, for the gravity that alleviates xarm 12, can adopt the form of fretwork or the form of frame, the row is arranged on xarm 12 and is provided with electrode connecting plate 10, electrode connecting plate 10 is used for connecting installation electrode 8, in view of the above, can directly adopt modular structure, also convenient the change, electrode 8 is including adopting current positive pole or positive form of discharging, electrode connecting plate 10 is fixed on xarm 11 through hexagon nut 15 or hexagon nut 16 can. Because the weight of xarm 11 exists, so be provided with the counter weight at the opposite side of square shaft 11, on the square shaft 11, through the fixed counter weight axle 9 of second hexagonal nut 7, set up counter weight dish 13 through the installation of counter weight axle 9, realize the increase and decrease convenience of counter weight in view of the above, realize the balance about realizing to control xarm 12 can not incline at the in-process along with the removal of machine head of a bed 6 and lead to the appearance of machining error.

For high temperature and high pressure existing in the electric spark machining process, machining liquid is required to be used for cooling and reducing the temperature in the cutting process, and common machining media, namely cooling media, comprise coal oil and the like and need to support the machining of a workpiece. To this, the utility model discloses a processing tank 5, processing tank 5 through the 4 bearings of lathe platform, including adopting T type screw 1 to fix, it has a plurality of check grooves to separate in the processing tank 5, the flow of processing medium is realized through opening or through-hole to the bottom in check groove. In some implementations, the side wall of the processing tank 5 may be provided with a passage for the processing medium to enter and exit, and the cooling effect is better in a circulating manner. In the processing tank 5, the fixing of the workpiece needs to be considered, so that the clamping assembly 14 is arranged for fixing the workpiece, including limiting and clamping to prevent rotation and the like, and deviation caused by loosening of the workpiece during processing is avoided. In the processing tank 5, a support can be arranged for supporting the workpiece, for example, a circular workpiece is correspondingly provided with a cambered support.

Combine the lathe setting, the device can divide into upper and lower two parts, upper portion mainly is through the setting of lathe head 6 to need remove, control processing operation. The lower part is a processing tank 5 which is used for containing processing media and supporting workpieces. In order to cooperate the operation demand of processing, involve 8 controls apart from work piece surface position of electrode, the device is provided with tongue 2, tongue 2 sets up on machine tool platform 4, and is located one side of processing groove 5 for gather, read the position of machine tool head to machine tool platform, and can also set up limit structure on the tongue, be used for preventing that machine tool head control electrode from contacting processing groove 5, thereby damage the device, call "zero" or "lower spacing" in the partial machining operation.

A modular multi-station combined electric spark machining device working mode is as follows:

1. connecting installation of device and machine tool

The square shaft 11 is arranged on the machine tool clamping structure 3. The cross arm 12 is arranged on the square shaft 11, the weight disc 13 is arranged at the other side of the cross arm 12, the mass center of the whole cross arm is adjusted to be close to the axle center of the square shaft 11 by adjusting the weight, and the balance of the device ensures the positioning precision of the mechanism work;

2. mounting of electrode plates

The electrode connecting plate 10 fixes the electrode 8 by a hexagon socket head cap screw 16 by screwing. The device has 3 positions, and the electrodes (number and position) can be arranged according to requirements. Different electrode layouts can be made as required, and the current enters a part point machining state after being communicated with the electrodes through the connecting plate during working.

3. Work positioning

The workpiece is fixed on the processing tank 5 (oil tank) through the clamping assembly 14, and the processing position of the electrode 8 can be accurately positioned by operating the movement of the machine tool platform 4, and multi-station processing is carried out. Here, if the machine tool head 6 is replaced with a robot arm of a robot, the machining operation of the electric discharge is performed by controlling the movement of the electrode.

Claims (7)

1. The utility model provides a modularization multistation combination spark-erosion machining device, the device passes through the lathe head (6) and fixes, its characterized in that: the lower part of the machine head (6) is connected with a square shaft (11) at the end part of a cross arm (12) through a clamping structure (3), the cross arm (12) is provided with a plurality of groups of electrode connecting plates (10), and the electrode connecting plates (10) are used for mounting electrodes (8); a counterweight plate (13) is arranged on one side of the square shaft (11) and is used for balancing the gravity of a cross arm (12) on the other side of the square shaft (11);

a processing groove (5) is arranged below the cross arm (12), the processing groove (5) is supported by a machine tool platform (4), and a supporting plate for supporting a workpiece is arranged in the processing groove (5).

2. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: the electrode connecting plates (10) are provided with two or more groups, and the electrodes (8) are independently installed through the electrode connecting plates (10).

3. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: and a height gauge (2) for measuring the distance between the machine tool head (6) and the machine tool platform (4) is arranged between the machine tool head and the machine tool platform.

4. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: a telescopic device is arranged between the clamping structure (3) and the square shaft (11), and the height of a cross arm (12) provided with an electrode is controlled through the telescopic device.

5. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: the counterweight plate (13) is arranged through a counterweight shaft (9), and the counterweight plate (13) is increased or decreased through the counterweight shaft (9).

6. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: a clamping component (14) of a workpiece is arranged in the processing groove (5).

7. The modular multi-station combined electric discharge machining device according to claim 1, characterized in that: the inner grids of the processing tank (5) are arranged into a plurality of tank grids, processing media are contained in the grid grooves, and the processing media flow between the grid grooves through the through holes at the bottom.

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