阅读说明：本技术 一种应用于旋转电火花机床的附件化装置 (Accessory device applied to rotary electric spark machine tool ) 是由 董颖怀 李广彦 王岩 宋健宝 蔡清睿 于海洋 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种应用于旋转电火花机床的附件化装置,属于电火花加工的技术领域,所述附件化装置可以满足当下电火花加工的基本需要的转速；所述连接块根据电极模块和主轴模块的质量匹配,整个装置的质心在机床Z轴中心线上,保证了加工时的稳定性；所述连接块上部分具有机床通用的连接结构,适用于市场上多数电火花机床；所述电机通过电机减震器与电机支架相连,削弱了电机工作时电机振动对于整个装置的影响；所述电机支架与连接块中间隔着一层绝缘橡胶,将电火花机床电源系统与电机电源系统完全隔开,避免相互干扰；所述无动力主轴末端ER夹头的可夹持范围为0～10mm；所述附件化装置由电机通过同步带轮带动无动力主轴转动,通过电机控制面板实时监测主轴转速。本发明适用于大部分电火花机床,可以将传统的电火花机床升级为旋转电火花机床,可以扩展电火花机床的应用范围,提高电火花加工的精度。(The invention discloses an accessory device applied to a rotary electric spark machine tool, belonging to the technical field of electric spark machining, wherein the accessory device can meet the rotating speed basically required by the current electric spark machining; the connecting block is matched according to the mass of the electrode module and the main shaft module, and the mass center of the whole device is on the Z-axis central line of the machine tool, so that the stability in processing is ensured; the upper part of the connecting block is provided with a connecting structure universal for machine tools, and is suitable for most electric spark machine tools in the market; the motor is connected with the motor bracket through the motor shock absorber, so that the influence of the motor vibration on the whole device is weakened when the motor works; a layer of insulating rubber is arranged between the motor bracket and the connecting block, so that a power supply system of the electric spark machine tool is completely separated from a power supply system of the motor, and mutual interference is avoided; the clamping range of the ER chuck at the tail end of the unpowered main shaft is 0-10 mm; the attachment device drives the unpowered spindle to rotate through the synchronous belt pulley by the motor, and the rotating speed of the spindle is monitored in real time through the motor control panel. The invention is suitable for most electric spark machine tools, can upgrade the traditional electric spark machine tool into a rotary electric spark machine tool, can expand the application range of the electric spark machine tool and improve the precision of electric spark machining.)

1. The utility model provides an annex device for rotatory spark-erosion machine tool, includes connecting block, motor module and main shaft module wherein, the motor module is by direct current motor, motor support, motor snubber block, insulating rubber and motor control speed governing control panel, and the main shaft module mainly comprises high accuracy unpowered main shaft and spindle drum, and motor and main shaft realize synchronous rotation through synchronous pulley. The motor is connected to the motor support through the motor bumper shock absorber on, on the connecting block is connected to again, unpowered main shaft passes through the spindle drum and is connected to the connecting block, on the connecting block is connected to traditional electric spark machine tool anchor clamps, its characterized in that: the rotational movement is imparted to the electrodes of a conventional electric discharge machine by an appendixed device.

2. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: the connecting block has the general clamping structure of traditional lathe anchor clamps, is applicable to most traditional electric spark machine tools, makes things convenient for the dismouting.

3. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: the motor is connected to the motor bracket through the motor shock absorber, and the influence of the motor vibration on the rotation of the spindle can be weakened when the motor works.

4. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: the motor support is connected with the connecting block, and a layer of insulating rubber is added in the middle of the motor support to separate a power supply system of the motor from a power supply system of the electric spark, so that the working stability of the motor support and the working stability of the electric spark support are guaranteed.

5. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: the speed of the electrode can be regulated by adopting the motor speed regulation control panel, and the rotating speed of the motor can be monitored in real time.

6. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: the motor and the unpowered main shaft are driven by the synchronous belt pulley, so that synchronous rotation can be realized, and the monitoring of the electrode rotating speed is facilitated.

7. An appendixed device to be applied to a rotary electric discharge machine according to claim 1, characterized in that: unpowered main shaft and motor symmetric distribution have guaranteed that overall structure's barycenter is on the axis of lathe anchor clamps through the structure of adjustment connecting block, and the working process is more stable.

Technical Field

The invention belongs to the field of electric spark machining, and particularly relates to an electric spark machine tool, which is particularly an accessory design for upgrading and transforming a traditional electric spark machine tool into a rotary electric spark machine tool.

Background

The traditional electric spark machining has great advantages in high-hardness (common mechanical machining is difficult to realize) metal machining and is an important means of mechanical machining. But the traditional electric spark machining has the defects of difficult chip removal, lower machining efficiency, low machining precision and incapability of machining micro holes. The method greatly restricts the application range of the traditional electric spark machine tool and cannot meet the requirements of the industry on the electric spark machining precision and the complexity of the machining appearance at the present stage. Meanwhile, the proportion of the traditional electric spark machine tool is still relatively high in the current machining industry. If the electrode can rotate at a high speed, the high-speed rotation of the main shaft can enable the distribution of the discharge points to be more dispersed, fine round hole machining can be completed, the concentration of the discharge position in space and time can be effectively avoided, discharge residues can be discharged quickly, the electric spark machining efficiency and machining precision are further improved, and the machining requirements of related fine holes are met. Therefore, the traditional non-rotating electric spark machine tool severely limits the processing application range, the processing efficiency and the processing precision of the surface of a workpiece, and an electric spark machine tool accessory is urgently needed at present, so that the traditional electric spark machine tool is improved in a relatively economic mode, and the traditional electric spark machine tool is upgraded and improved to the rotating electric spark machine tool.

Disclosure of Invention

The invention provides a rotary electric discharge machine tool which is upgraded and modified on the basis of the traditional electric discharge machine tool, expands the application range and the processing precision of the electric discharge machine tool by using a more economical and practical attachment mode, and solves the processing limitation of the traditional electric discharge machine tool.

The technical scheme for realizing the purpose of the invention is as follows:

the annexing device applied to the rotary electric spark machine tool comprises a connecting block, a motor module and a main shaft module, wherein the motor module comprises a direct current motor, a motor support, a motor damping block, insulating rubber and a motor control speed regulation control panel, the main shaft module mainly comprises a high-precision unpowered main shaft and a main shaft seat, and the motor and the main shaft realize synchronous rotation through a synchronous belt pulley. The upper positioning structure of the connecting block is connected with a traditional electric spark machine tool in a positioning mode, and the motor is connected with the motor damping block and then fixed to the positioning block through the motor support. The unpowered main shaft is fixed on the positioning block through the main shaft seat.

And the motor is connected with the motor support through the motor damping block, so that the influence of the vibration of the motor during working on the rotation precision of the spindle can be well weakened.

And a layer of insulating rubber is clamped between the motor support and the connecting block, so that a power supply system of the motor is separated from a power supply system of the electric spark machine tool, and the influence of the motor vibration on the machining precision of the whole system is weakened again.

And through the transmission of synchronous pulley, unpowered main shaft can guarantee with the synchronous rotation of motor, to the rotational speed conversion of monitoring the main shaft to the rotational speed of monitoring the motor, can realize setting for and detecting the rotational speed during processing better.

And the motor control panel is provided with a knob for controlling the rotation speed of the motor and the forward and reverse rotation of the motor and a real-time motor rotation speed detection module.

And the main shaft positions the electrode through the high-precision ER chuck, so that the verticality and the coaxiality of the electrode can be realized, and the machining size precision is ensured.

Moreover, the chuck has a plurality of specifications, and can meet the high-precision electric spark machining in a larger diameter range.

The scheme is an improvement on the traditional electric spark machine tool, and the high-speed rotation of the motor spindle is utilized to realize the rotary electric spark machining on the inner surface and the outer surface of a workpiece.

The invention has the advantages and positive effects that:

1. the spindle of the motor can reach 1w/r per minute at most. The high-speed rotation of the motor spindle enables the distribution of the discharge points to be more dispersed, and the fine circular hole machining is completed.

2. The invention can realize the arrangement of electrodes made of any materials and is convenient to disassemble.

3. The invention can control the rotating speed of the motor and further improve the processing efficiency and the processing precision of the electric spark.

4. The insulating rubber arranged on the side surface and the top end of the motor shaft can prevent the transmission of vibration motion, and can provide higher rotating speed and more stable motion.

5. The invention is used as an accessory device, and realizes the upgrading and reconstruction of the traditional electric spark machine tool to the electric spark machine tool with more functions at lower cost.

6. The invention has made a real object, and through corresponding experimental tests, meets the basic processing requirements of hole and electric spark milling, and can better realize low-cost reconstruction of the traditional machine tool.

Drawings

FIG. 1 is a front view of the attachment device

FIG. 2 is a perspective view of the attachment device

FIG. 3 is a structural front view of a connecting block

FIG. 4 is a perspective view of the structure of the joint block

Description of reference numerals: 1-motor, 2-motor bracket, 3-insulating rubber, 4-motor shock absorber, 5-synchronous pulley A, 6-connecting block, 7-motor speed regulation control plate, 8-machine tool chuck, 9-synchronous belt, 10-synchronous pulley B, 11-main shaft seat, 12-unpowered main shaft, 13-ER chuck and 14-electrode

Detailed Description

In order to make the technical means, creation features, work flow, use method, achievement purpose and efficacy of the present invention easy to understand, the present invention is further described below with reference to fig. 1 and 2.

The embodiment adopts a direct current motor to drive the unpowered main shaft to realize axial rotary motion. As shown in figure 1, a connecting block (6) is connected to a chuck (8) of a machine tool to ensure the rigidity of the whole accessory system, a motor (1) is connected with a motor damper (4) and is connected to a motor bracket (2), the motor bracket (2) is connected to the connecting block (6) through an insulating bolt, and a layer of insulating rubber (3) is arranged between the connecting block (6) and the motor bracket (2) to ensure that a power supply system of the motor is completely separated from a power supply system of an electric spark. The motor shock absorber can weaken the vibration of the motor during operation, guarantee the stability of connecting block, guarantee the precision of main shaft during operation. The unpowered main shaft (12) is connected to the connecting block (6) through a main shaft seat (11), the lower end of the main shaft is provided with an ER chuck (13) which is provided with a whole set of ER chucks, and the diameter range of the electrode which can be clamped is 0.1-10 mm. The motor (1) and the unpowered spindle (12) realize synchronous transmission through the synchronous belt pulleys (5, 10), the rotating speed range is 0-10000r/min, the motor can be regulated through the motor speed regulation control board (7), the rotating speed of the motor can be monitored in real time, and the rotating speed range of current electric spark machining is basically met.

The attachment device transmits the motion of the motor to the main shaft through the synchronous belt wheel, and the motor is regulated by the motor speed regulation control board to reach the rotating speed required by processing. The rotating electrode can improve the precision of the processing hole and the processing efficiency. The motor vibration damper and the insulating rubber can well reduce the transmission of motor vibration and ensure the rigidity of the connecting block. The upper positioning part of the connecting block is provided with a positioning structure of a traditional chuck, has good compatibility and can be directly clamped at the tail end of a Z shaft of a traditional machine tool.