CN218050351U

CN218050351U - Machine tool electric spindle with tool breakage detection function

Info

Publication number: CN218050351U
Application number: CN202221219349.0U
Authority: CN
Inventors: 叶茂丰
Original assignee: Quanzhou Shengyu Machinery Equipment Co ltd
Current assignee: Quanzhou Shengyu Machinery Equipment Co ltd
Priority date: 2022-05-21
Filing date: 2022-05-21
Publication date: 2022-12-16
Anticipated expiration: 2032-05-21

Abstract

The utility model relates to a lathe electricity main shaft with disconnected sword detects function, including insulating casing, the rotatable dabber of installing in insulating casing, the one end of dabber is extended and is removed insulating casing, set up the through-hole of a perpendicular and insulating casing axis on the insulating casing, demountable installation has the brush in the through-hole, the brush include with the electrically conductive brush head of dabber contact, with electrically conductive brush head electric connection's electrically conductive cable, be equipped with electrostatic detection device on the wire cable. The utility model discloses a lathe electricity main shaft with disconnected sword detects function can detect the cutter condition, and low cost.

Description

Machine tool electric spindle with tool breakage detection function

Technical Field

The utility model relates to a lathe main shaft technical field especially relates to a lathe electricity main shaft with disconnected sword detects function.

Background

The electric spindle is a new technology which integrates a machine tool spindle and a spindle motor and is combined with a linear motor technology and a high-speed cutter technology in the field of numerical control machines, the electric spindle comprises the electric spindle and accessories thereof, a rotor of a motor is directly used as a spindle of the machine tool, a shell of a spindle unit is a motor base and is matched with other parts to realize the integration of the motor and the machine tool spindle, when the electric spindle works to drive a cutter to operate, if the cutter is broken, the workpiece can be damaged, and the existing broken cutter detection device is complex in structure and high in cost.

SUMMERY OF THE UTILITY MODEL

For overcoming the technical defect that prior art exists, the utility model provides a lathe electricity main shaft with disconnected sword detects function, it can detect the cutter condition, and low cost.

The utility model discloses a technical solution be: lathe electricity main shaft with disconnected sword detects function, including insulating casing, the rotatable dabber of installing in insulating casing, the one end of dabber is extended and is removed insulating casing, set up the through-hole of a perpendicular and insulating casing axis on the insulating casing, demountable installation has the brush in the through-hole, the brush include with the electrically conductive brush head of dabber contact, with the electrically conductive cable of electrically conductive brush head electric connection, be equipped with electrostatic detection device on the wire cable.

Preferably, both ends can change the rotation through the bearing and install in the insulating housing around the dabber, and the inside interlude of insulating housing is fixed with the stator, the middle part cover of dabber be equipped with and be fixed with stator complex rotor.

Preferably, the front end and the rear end of the mandrel are rotatably mounted in the insulating shell through two bearings respectively.

Preferably, the electrically conductive cable is electrically connected to the machine tool.

Preferably, the through-hole is a bar-shaped hole, the shape of the conductive brush head is matched with the shape of the through-hole, elastic clamping pieces are arranged on two opposite surfaces of the conductive brush head, and the conductive brush head is clamped in the bar-shaped hole through the elastic clamping pieces.

Preferably, one end of the conductive brush head, which is far away from the mandrel, is provided with an annular sealing rubber ring, and the sealing rubber ring covers the outer end of the through hole.

The beneficial effects of the utility model reside in that: the utility model discloses a lathe electricity main shaft with disconnected sword detects function is at work, it installs it on the lathe, electricity main shaft circular telegram, the dabber rotates at a high speed and drives the cutter rotation, cutter and work piece contact, the dabber inevitably can take static, be connected the electrically conductive cable of brush and lathe electricity, dabber, cutter, work piece and lathe constitute a closed path, set up static detection device on the closed path, when the cutter appears splitting, the fracture part of cutter breaks away from with the work piece, the closed path is disconnected, static detection device's detection numerical value can change and will change, the cutter condition can be monitored often; in addition, the conductive cable can also be directly grounded to eliminate the static electricity of the electric spindle.

Drawings

Fig. 1 is a schematic structural diagram of the electric spindle of the machine tool with the function of detecting the broken tool of the present invention.

Fig. 2 is a schematic structural view of the conductive brush head of the present invention.

Fig. 3 is a reference diagram of the using state of the electric spindle of the machine tool with the function of detecting the broken tool according to the present invention.

Description of the reference numerals: 1. an insulating housing; 101. a stator; 102. a bearing; 2. a mandrel; 201. a through hole; 202. a rotor; 3. a conductive brush head; 301. the elastic clamping piece; 302. sealing the rubber ring; 4. a conductive cable; 5. an electrostatic detection device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 3, this embodiment provides a lathe electricity main shaft with disconnected sword detects function, including insulating housing 1, the rotatable dabber 2 of installing in insulating housing 1, the one end of dabber 2 is extended and is removed insulating housing 1, the last through-hole 201 of a perpendicular to insulating housing 1 axis of having seted up of insulating housing 1, demountable installation has the brush in the through-hole 201, the brush include with the electrically conductive brush head 3 of dabber 2 contact, with electrically conductive brush head 3 electric connection's electrically conductive cable 4, be equipped with static detection device 5 on the wire cable, the lathe electricity main shaft of this embodiment can monitor the cutter condition often, and monitor with low costs.

In this embodiment, the front end and the rear end of the mandrel 2 are rotatably mounted in the insulating housing 1 through bearings 102, a stator 101 is fixed in the middle section of the insulating housing 1, and a rotor 202 matched with the stator 101 is sleeved and fixed in the middle of the mandrel 2. Preferably, the front end and the rear end of the mandrel 2 are rotatably mounted in the insulating housing 1 through two bearings 102.

When the static electricity detection device 5 of this embodiment is used, the conductive cable 4 is electrically connected with a machine tool, the static electricity detection device 5 is arranged on the conductive cable 4, the conductive cable 4 of the electric brush is electrically connected with the machine tool, the mandrel 2, the tool, the workpiece and the machine tool form a closed path, the static electricity detection device 5 of this embodiment is an existing product, and the model of the static electricity detection device 5 is FMX-003.

In this embodiment, the through-hole 201 is a bar-shaped hole, the shape of the conductive brush head 3 and the shape cooperation of the through-hole 201, the two opposite surfaces of the conductive brush head 3 are both provided with elastic clamping pieces 301, and the conductive brush head 3 is clamped in the bar-shaped hole through the elastic clamping pieces 301. Preferably, an annular sealing rubber ring 302 is arranged at one end of the conductive brush head 3 away from the mandrel 2, and the sealing rubber ring 302 covers the outer end of the through hole 201 to prevent dust from entering the electric spindle.

The lathe electricity main shaft with disconnected sword of this embodiment detects function is at work, it is installed on the lathe with it, electricity main shaft circular telegram, 2 high-speed rotations of dabber and drive cutter rotate, the cutter contacts with the work piece, inevitably can take static on the dabber 2, electrically connect the electrically conductive cable 4 of brush with the lathe, dabber 2, the cutter, work piece and lathe constitute a closed circuit, set up static detection device 5 on closed circuit, when the cutter appears breaking, the fracture part and the work piece of cutter break away from, closed circuit disconnection, the detection numerical value of static detection device 5 can change, through the monitoring result of monitoring static detection device 5, the cutter condition can be monitored constantly.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. Lathe electricity main shaft with disconnected sword detects function, its characterized in that: including insulating casing, rotatable dabber of installing in insulating casing, the one end of dabber is extended and is removed insulating casing, set up a through-hole perpendicular and insulating casing axis on the insulating casing, demountable installation has the brush in the through-hole, the brush include with the electrically conductive brush head of dabber contact, with electrically conductive brush head electric connection's electrically conductive cable, be equipped with electrostatic detection device on the electrically conductive cable.

2. The electric spindle of a machine tool with a tool breakage detection function according to claim 1, characterized in that: the front end and the rear end of the core shaft can be rotatably installed in the insulating shell through bearings, a stator is fixed to the middle section of the inside of the insulating shell, and a rotor matched with the stator is sleeved and fixed to the middle of the core shaft.

3. The electric spindle of the machine tool with the function of detecting the broken cutter according to claim 2, characterized in that: the front end and the rear end of the mandrel are rotatably arranged in the insulating shell through two bearings respectively.

4. The electric spindle of a machine tool with a tool breakage detection function according to claim 1, characterized in that: the conductive cable is electrically connected with the machine tool.

5. The electric spindle of the machine tool with the function of detecting the broken cutter according to claim 1, characterized in that: the through-hole is the bar hole, the shape of electrically conductive brush head with the shape cooperation of through-hole all is equipped with the elasticity fastener on electrically conductive brush head two relative faces, and electrically conductive brush head passes through the joint of elasticity fastener in the bar is downthehole.

6. The electric spindle of the machine tool with the function of detecting the broken cutter according to claim 5, characterized in that: the one end that the dabber was kept away from to the electrically conductive brush head is equipped with annular sealing rubber circle, sealing rubber circle covers the through-hole outer end.