CN206567847U - A kind of automatic clamping device of micro-structural cutting off machine - Google Patents

Abstract

The utility model discloses an automatic clamping device for a microstructure cutting machine tool, which comprises a base, a lower fixture, an upper fixture, a pressing device and a controller. There is a workpiece, and the upper fixture is covered on the lower fixture to press the workpiece on the lower fixture; the lower fixture and the upper fixture are arranged in the sleeve cup, and the wall of the sleeve cup has a through hole The output shaft of the pressing device presses against the upper member through the through hole; the controller is electrically connected with the pressing device. The controller of the utility model controls the pressing device to stop moving, and at this time, the upper piece is pressed against the lower piece under the action of the pressing force of the pressing device, so that the machine tool can smoothly cut the workpiece with the knife. Since the workpiece is tightly pressed between the lower part and the upper part, the workpiece will not be clamped and deformed, which ensures the cutting accuracy of the machine tool and improves the quality and yield of processed products.

Description

An automatic clamping device for a microstructure cutting machine tool

technical field

The utility model relates to an automatic clamping device, in particular to an automatic clamping device for a microstructure cutting machine tool.

Background technique

With the development of ultra-precision technical equipment, machine tool technology is developing towards high speed, high efficiency, high precision and high intelligence. Therefore, high precision, high efficiency and low price are also required for fixtures. The microstructure cutting machine tool belongs to the ultra-precision machining machine tool, and its fixture needs to be uniquely designed and manufactured to adapt to the miniaturized structure of the cutting workpiece. However, the existing fixtures usually use manual clamping of the workpiece, and the clamping force is not easy to control, especially for the ultra-thin aluminum alloy workpiece processed by the microstructure cutting machine tool. The clamping skills of the personnel are relatively high, otherwise it is easy to cause deformation of the cutting workpiece and seriously affect the processing accuracy of the workpiece. The whole clamping process has great difficulty, low efficiency and high production cost.

Utility model content

The purpose of the utility model is to solve the problems of high clamping skills of the operator, high difficulty in the whole clamping process, low efficiency and high production cost when the existing clamping device clamps the thin workpiece, and provides a simple and convenient installation. And the automatic clamping device of the microstructure cutting machine tool with high efficiency.

Automatic tracking control, easy to use and safe and reliable five-axis hair dryer.

The purpose of this utility model can adopt following technical scheme to reach:

An automatic clamping device for a microstructure cutting machine tool, comprising a base, a lower fixture, an upper fixture, a pressing device and a controller, a sleeve cup is fixedly installed on the base, a workpiece is sleeved on the lower fixture, and the The upper fixture is covered on the lower fixture and the workpiece is pressed against the lower fixture; the lower fixture and the upper fixture are arranged in the sleeve cup, and a through hole is opened on the wall of the sleeve cup. The output shaft of the pressing device presses against the upper member through the through hole; the controller is electrically connected with the pressing device.

As a preferred solution, the pressing device includes a motor, an elastic coupling and a screw rod, internal threads are provided in the through hole, the motor is fixedly installed on the base, and the output shaft of the motor The screw rod is fixedly connected with the screw rod through an elastic coupling; the screw rod is connected with the threaded through hole, and the screw rod is pressed against the upper member.

As a preferred solution, an inclined surface is provided on the wall of the upper member, and the screw rod is pressed against the inclined surface.

As a preferred solution, the pressing device is a telescopic motor, and the output shaft of the telescopic motor presses against the upper member through the through hole.

As a preferred solution, an inclined surface is provided on the wall of the upper member, and the output shaft of the telescopic motor presses against the inclined surface.

Further, there are multiple pressing devices, which are evenly distributed on the base.

As a preferred solution, a through slot is opened on the cup, and an electromagnet corresponding to the position of the through slot is fixedly installed on the base, and the electromagnet is electrically connected with the controller; When the pressing device does not push against the upper firmware, the electromagnet absorbs the lower hardware and sucks the lower hardware out through the groove.

As a preferred solution, a connecting rod is provided on the lower part, and the connecting rod protrudes toward the electromagnet through a slot, and a spring is sheathed on the front end of the connecting rod; when the electromagnet absorbs the lower part, The spring is in contact with the electromagnet.

As a preferred solution, a circular groove and a perforation are opened on the center line of the lower fastener, bakelite is installed in the circular groove, and the workpiece is installed on the bakelite; the diameter of the perforation is smaller than the diameter of the circular groove diameter; the diameter of the circular groove is 8-12mm, and the depth is 3-5mm.

Further, the motor is a servo motor.

Further, the telescopic motor is a voice coil motor.

Implementing the utility model has the following beneficial effects:

1. In this utility model, when the output shaft of the pressing device is pressed against the upper piece, the controller controls the pressing device to stop moving, and at this time the upper piece is pressed against the lower piece under the pressure of the pressing device. Up, so that the machine tool can smoothly cut the workpiece with the knife. Since the workpiece is tightly pressed between the lower part and the upper part, the workpiece will not be clamped and deformed, which ensures the cutting precision of the machine tool, improves the quality and yield of the processed product, and solves the problem of clamping of the existing fixture device When the workpiece is thin, the clamping skills of the operator are required to be high, and the entire clamping process is difficult, low in efficiency and high in production costs.

2. When the utility model works, the motor drives the screw mandrel to rotate through the elastic coupling, and the screw mandrel is screwed in or out in the through hole with internal thread, and presses the upper part or does not press the upper part. When the workpiece needs to be fixed, the screw rod is screwed into the direction of the upper member and pressed against the upper member, and the workpiece is pressed tightly by the upper member into the lower member to achieve the purpose of clamping. When the workpiece needs to be taken out, the screw rod is unscrewed in the opposite direction without pressing the upper fixture, and then the upper fixture can be opened to take out the workpiece. The structure is simple, and the clamping and replacement are convenient, which greatly improves the working efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the automatic clamping device of the utility model microstructure cutting machine tool;

FIG. 2 is a sectional view of FIG. 1 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example

Referring to Fig. 1 and Fig. 2, the present embodiment relates to an automatic clamping device, including a base 1, a lower part 2, an upper part 3, a pressing device 4 and a controller. A workpiece 5 is sleeved on the lower fixture 2, and the upper fixture 3 is covered on the lower fixture 2 to press the workpiece 5 on the lower fixture 2; the lower fixture 2 and the upper fixture 3 are arranged on the sleeve In the cup 11, a through hole is opened on the wall of the sleeve cup 11, and the output shaft of the pressing device 4 presses on the upper member 3 through the through hole; the controller and the pressing The device 4 is electrically connected. The controller is a single-chip microcomputer or PLC.

In this implementation example, there are three pressing devices 4 , and when working, the controller controls the three pressing devices 4 to move simultaneously to realize three-axis linkage. When the output shaft of the pressing device 4 is pressed against the upper member 3, the controller controls the pressing device 4 to stop moving, and at this time the upper member 3 is pressed against the lower member by the pressing force of the pressing device 4 2, so that the machine tool can cut the workpiece 5 smoothly. Since the workpiece 5 is tightly pressed between the lower member 2 and the upper member 3, the workpiece 5 will not be clamped and deformed, which ensures the cutting accuracy of the machine tool tool, improves the quality of the processed product and the yield rate, and solves the existing problem. When the fixture device clamps the thin workpiece 5, it requires high clamping skills of the operator, and the whole clamping process is difficult, low in efficiency and high in production cost.

The pressing device 4 includes a motor 41, an elastic coupling 42 and a screw mandrel 43, the through hole is provided with an internal thread, the motor 41 is fixedly mounted on the base 1, and the output shaft of the motor 41 The elastic coupling 42 is fixedly connected to the threaded rod 43 ; the threaded rod 43 is connected to the through hole by screw transmission, and the threaded rod 43 is pressed against the upper member 3 . During work, motor 41 drives screw mandrel 43 to rotate by elastic shaft coupling 42, and then screw mandrel 43 is screwed in or unscrewed in the through hole of band internal thread, and presses upper fixture 3 or does not press upper fixture 3. When the workpiece 5 needs to be fixed, the screw mandrel 43 is screwed into the direction of the upper member 3 and pressed against the upper member 3, and then the workpiece 5 is tightly pressed in the lower member 2 by the upper member 3 to realize the purpose of clamping. When the workpiece 5 needs to be taken out, the screw mandrel 43 is reversely unscrewed without pressing the upper fixture 3, and then the upper fixture 3 can be opened to take out the workpiece 5. The structure is simple, and the clamping and replacement are convenient, which greatly improves the working efficiency.

The wall of the upper member 3 is provided with an inclined surface 31 , and the screw rod 43 is pressed against the inclined surface 31 . The horizontal acting force of the screw mandrel 43 on the inclined surface 31 is divided into a horizontal component force and a vertical downward component force, so that the upper component 3 is subjected to a downward force and the workpiece 5 is pressed against the lower component 2, ensuring that The installation of the stabilizer ensures the work, and the workpiece 5 will not be deformed to affect the processing accuracy, and the structure is simple and ingenious.

There are multiple pressing devices 4 and they are evenly distributed on the base 1 . A plurality of pressing devices 4 act on the upper part 3 uniformly at the same time, so that the downward force distribution of the upper part 3 on the workpiece 5 is more uniform, and the stability of the installation of the workpiece 5 is improved.

A through groove 12 is opened on the cover cup 11, and an electromagnet 6 corresponding to the position of the through groove 12 is fixedly installed on the base 1, and the electromagnet 6 is electrically connected with the controller; When the device 4 is not pressing the upper part 3, the electromagnet 6 absorbs the lower part 2 and the lower part 2 is sucked out through the slot 12. After the workpiece 5 is put into the lower fixture 2 and the upper fixture 3 is covered, the three parts can be put into the sleeve cup 11 through the through slot 12, and then the controller controls the motor 41 to work so that the screw rod 43 presses the upper fixture 3 . After the workpiece 5 is processed, the controller only needs to be energized to make the electromagnet 6 generate magnetic force, then the three components can be sucked out through the through slot 12, and then the processed workpiece 5 is removed, and the workpiece to be processed is reinstalled 5 to the upper firmware 3.

Described lower fixture 2 is provided with connecting rod 21, and described connecting rod 21 stretches out toward electromagnet 6 through slot 12, and the front end of described connecting rod 21 is sheathed with spring 22; Described connecting rod 21 has magnetic Or materials that are magnetically attracted. The firmware 2 is attracted by the electromagnet 6 , and the spring 22 is in contact with the electromagnet 6 . When the electromagnet 6 adsorbs the firmware 2, in order to prevent the connecting rod 21 from rigidly colliding with the electromagnet 6, when the connecting rod 21 moves to contact with the electromagnet 6, the spring 22 first contacts the electromagnet 6, so that the connecting rod 21 The speed of movement gradually decreases and eventually stops.

A circular groove and a perforation are arranged on the center line of the lower fixture 2, a bakelite 23 is installed in the circular groove, and the workpiece 5 is installed on the bakelite 23; the diameter of the perforation is smaller than the diameter of the circular groove; The diameter of the circular groove is 8-12mm, and the depth is 3-5mm. More preferably, the diameter of the circular groove is 10mm, the depth is 4mm, and the diameter of the perforation is 5mm. In order to prevent the lower firmware 2 from being cut when the machine tool cutting work, the bakelite 23 plays the role of isolation. After the bakelite 23 is cut or destroyed, the safety of the lower firmware is ensured by replacing the new bakelite 23. After the bakelite 23 is broken, the broken bakelite 23 can be taken out through the perforation, which facilitates the replacement of the bakelite.

The motor 41 is a servo motor, and the rotation angle of the motor 41 can be precisely controlled by the servo motor, thereby accurately controlling the force exerted by the screw rod 43 on the upper part 3 to prevent the screw rod 43 from damaging the upper part 3 .

Example 2

This embodiment is based on Embodiment 1, and as an improvement to the pressing device 4, the pressing device 4 is a telescopic motor, and the output shaft of the telescopic motor is pressed against the upper member 3 through the through hole . During work, the output shaft of the telescopic motor stretches in or stretches out in the through hole, and presses the upper fixture 3 or does not press the upper fixture 3. When the workpiece 5 needs to be fixed, the output shaft of the telescopic motor slides in the direction of the upper member 3 and presses the upper member 3, and the workpiece 5 is pressed tightly in the lower member 2 by the upper member 3 to achieve the purpose of clamping. When the workpiece 5 needs to be taken out, the output shaft of the telescopic motor slides in reverse without pressing the upper fixture 3, and then the upper fixture 3 can be opened to take out the workpiece 5. The structure is simple, and the clamping and replacement are convenient, which greatly improves the working efficiency.

The wall of the upper member 3 is provided with an inclined surface 31 , and the output shaft of the telescopic motor presses against the inclined surface 31 . The horizontal force exerted by the output shaft of the telescopic motor on the inclined surface 31 is divided into a horizontal component force and a vertical downward component force, so that the upper component 3 is subjected to a downward force to press the workpiece 5 against the lower component 2, It not only ensures the installation of the stable parts for work, but also prevents the workpiece 5 from being deformed to affect the machining accuracy, and the structure is simple and ingenious.

The telescopic motor is a voice coil motor, through which the telescopic amount of the output shaft can be precisely controlled, thereby accurately controlling the force exerted by the output shaft on the upper fixture 3 and preventing the telescopic motor from damaging the upper fixture 3 .

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, the equivalent changes made according to the claims of the utility model are still covered by the utility model. scope.

Claims (10)

1. a kind of automatic clamping device of micro-structural cutting off machine, it is characterised in that：Including base, lower firmware, upper firmware, top pressure It is installed with device and controller, the base on a set of cups, the lower firmware and is arranged with workpiece, the upper firmware is covered on On the lower firmware and by workpiece top pressure on lower firmware；The lower firmware and upper firmware are in a set of cups, a set of cups Wall on be provided with through hole, the output shaft of the jack unit is by the through hole top pressure on the upper firmware；The controller Electrically connected with the jack unit.

2. a kind of automatic clamping device of micro-structural cutting off machine according to claim 1, it is characterised in that：The top pressure Device includes being provided with internal thread in motor, yielding coupling and screw mandrel, the through hole, and the motor is fixedly installed in the base On, the output shaft of the motor is fixedly connected by yielding coupling with the screw mandrel；The screw mandrel is passed with the through hole whorl Dynamic connection, the screw mandrel bears down on one on the upper firmware.

3. a kind of automatic clamping device of micro-structural cutting off machine according to claim 2, it is characterised in that：It is described solid The wall of part is provided with inclined plane, and the screw mandrel bears down on one in the inclined plane.

4. a kind of automatic clamping device of micro-structural cutting off machine according to claim 1, it is characterised in that：The top pressure Device is telescope motor, and the output shaft of telescope motor is by the through hole top pressure on the upper firmware.

5. a kind of automatic clamping device of micro-structural cutting off machine according to claim 4, it is characterised in that：It is described solid The wall of part is provided with inclined plane, and the output shaft of the telescope motor bears down on one in the inclined plane.

6. a kind of automatic clamping device of micro-structural cutting off machine according to claim 2 or 4, it is characterised in that：It is described Jack unit is provided with multiple, and is uniformly distributed on base.

7. a kind of automatic clamping device of micro-structural cutting off machine according to claim 1, it is characterised in that：The a set of cups On be provided with groove, the base and be installed with the electromagnet corresponding with the groove position, the electromagnet with it is described Controller is electrically connected；On jack unit not top pressure during firmware, the electromagnet adsorbs lower firmware and lower firmware is passed through into groove Adsorb.

8. a kind of automatic clamping device of micro-structural cutting off machine according to claim 1, it is characterised in that：It is described lower solid Part is provided with connecting rod, and the connecting rod is stretched out by groove to electromagnet direction, and the front end sleeve of the connecting rod is provided with spring； Under electromagnet absorption during firmware, the spring is in contact with the electromagnet.

9. a kind of automatic clamping device of micro-structural cutting off machine according to claim 1, it is characterised in that：It is described lower solid It is provided with center line on part in circular groove and perforation, the circular groove and bakelite is installed, the workpiece is installed on bakelite；It is described to wear The diameter in hole is less than the diameter of circular groove；A diameter of 8~12mm of the circular groove, depth is 3~5mm.

10. a kind of automatic clamping device of micro-structural cutting off machine according to claim 2, it is characterised in that：The electricity Machine is servomotor.