CN213945713U

CN213945713U - Accurate zero point positioning device

Info

Publication number: CN213945713U
Application number: CN202022994286.3U
Authority: CN
Inventors: 许长生; 陈躯宁; 朱海英; 郭琦琦; 陶渊亮
Original assignee: Shanghai Shenghao Automation Technology Co ltd
Current assignee: Shanghai Shenghao Automation Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-13
Anticipated expiration: 2030-12-14

Abstract

For solving traditional locating pin centering difficulty and zero point locator and resisting moment of torsion and ability low, well heavy load or the big technical problem of dynamic environment risk, the utility model provides an accurate zero point positioner, including base plate and layer board, zero point positioning system has been arranged on the base plate, the locating pin that matches with zero point positioning system has been arranged to the layer board bottom surface, the marginal symmetrical arrangement of base plate has at least a pair of gap sensor to be connected with the power electricity for control base plate and layer board clearance. The reliability of the whole system under the conditions of medium load, heavy load and motion state is effectively improved, the problem of opening caused by the fact that the positioner cannot be locked in the transmission use process is avoided, and the reliability of accurate positioning is realized. Meanwhile, the zero point positioner is assembled with a self-centering function, so that the mounting difficulty is effectively reduced. The gap detection sensor is used for monitoring the condition of the whole locking process in real time, so that the problems of poor installation and opening caused by dynamic load in the locking process are avoided.

Description

Accurate zero point positioning device

Technical Field

The utility model relates to an industrial automation is with frock clamp device, especially an accurate positioner at zero point.

Background

The clamping and positioning modes commonly used in the market at present mainly comprise two modes, wherein one mode is that the clamping and positioning mode is used for positioning through a positioning pin and then is locked through a bolt or an air cylinder clamp. And the other machining industry is more in use, and the zero point positioner of the standard product is used for clamping.

The traditional locating pin is difficult to center during locating and mounting, and particularly when the tool is heavy. The locating pin is worn seriously in the use process, and the bolt is required to be screwed after the locating pin is installed in place. The locking may be dead in the installation process, the pulling-out is also needed to be carried out with great force when the locking bolt is disassembled, and the pulling-out is also needed to be carried out slowly sometimes, so that the efficiency is low.

The zero point positioner used in the machining industry can realize quick clamping, but the zero point positioner has low bending moment and torque resistance and has large risk in medium and heavy loads or dynamic environments.

Disclosure of Invention

For solving above-mentioned traditional locating pin centering difficulty and zero point locator and resisting moment of torsion and moment of torsion ability low, well heavy load or the big technical problem of dynamic environment risk, the utility model provides an accurate positioner at zero point specifically as follows:

the accurate zero point positioning device comprises a substrate and a supporting plate, wherein a zero point positioning system is arranged on the substrate, positioning pins matched with the zero point positioning system are arranged on the bottom surface of the supporting plate, an air pipeline communicated with a zero point positioner is further arranged on the substrate, a power supply is arranged on the substrate, and at least one pair of gap sensors are symmetrically arranged on the edge of the substrate and electrically connected with the power supply for monitoring the gap between the substrate and the supporting plate.

On the basis of the technical scheme, further, the zero point positioning system comprises at least three zero point positioners, and a zero point positioning pin, a locking positioning pin and a one-way positioning pin are respectively arranged on the supporting plate and matched with the zero point positioners.

On the basis of the technical scheme, further, a clamp device is arranged on the back surface of the supporting plate.

On the basis of the technical scheme, the fixture device further comprises a driving air cylinder, a female air interface communicated with an air pipeline is arranged on the substrate, a male air interface matched with the supporting plate is arranged on the supporting plate, the male air interface is communicated with the driving air cylinder through an electronic valve, and the electromagnetic valve is electrically connected with the gap sensor.

On the basis of the above technical scheme, further, the electromagnetic valve is electrically connected with the gap sensor, that is, a female pin module for signal transmission is arranged on the substrate, a male pin module matched with the female pin module is arranged on the supporting plate, and the male pin module is electrically connected with the electronic valve.

The female gas interface comprises a valve body, a sliding ring and a return spring, the sliding ring is arranged at an opening of the valve body and slides along the inner edge of the valve body, the return spring is arranged below the sliding ring, the male gas interface is provided with a raised valve core, a supporting spring is arranged behind the valve core, and the valve core can press the sliding ring to communicate with a gas circuit.

On the basis of the technical scheme, further, the male needle module comprises a needle head module and a shell, the needle head module is connected with the shell through a step bolt, and a sealing ring is arranged between the needle head module and the shell.

The utility model has the advantages of, effectual improvement entire system carries and the reliability under heavy load and the motion state in, avoids the unable tight opening problem that leads to of locator lock in the transmission use, realizes the reliability of accurate location.

Meanwhile, the zero point positioner is assembled with a self-centering function, so that the mounting difficulty is effectively reduced. The gap detection sensor is used for monitoring the condition of the whole locking process in real time, so that the problems of poor installation and opening caused by dynamic load in the locking process are avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the zero locator;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a schematic diagram of a signal transmission pin module;

fig. 5 is a schematic view of the structure of the air inlet.

Description of the reference numerals

1-a substrate; 11-a zero locator; 12-a female needle module; 13-mother gas interface; 2-a supporting plate; 21-a zero point locating pin; 22-locking positioning pin; 23-a one-way locating pin; 24-male pin module; 25-public gas interface; 3-a gap sensor; 4-clamping; 41-driving a cylinder; 42-a solenoid valve; 111-an air inlet; 112-air outlet; 113-a locking spring; 121-a needle module; 122-a housing; 123-step bolt; 124-flexible sealing; 251-a valve core; 252-a support spring; 131-a slip ring; 132-return spring.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model relates to an accurate positioner at zero point, including base plate 1 and layer board 2, the positioning system at zero point has been arranged on the base plate 1, the locating pin that matches with the positioning system at zero point is arranged to 2 bottom surfaces of layer board, positioning system at zero point includes at least three locator at zero point 11, arrange respectively on the layer board that positioning pin 21 at zero point, locking locating pin 22 and one-way locating pin 23 match with three locator at zero point respectively.

In order to improve the zero point locator 11 to cope with the conditions of medium heavy load and motion state, the spring for blocking in the zero point locator 11 adopts a double-layer spring structure, namely, the spring with inner and outer circles is arranged, and compared with the traditional zero point locator shown in fig. 2, the spring force is more than twice. Furthermore, under the application of heavy load and other high-load scenes, the locking force can be improved by increasing the back pressure.

An air pipeline communicated with the zero point positioner 11 is further arranged on the substrate 1, a power supply is arranged on the substrate 1, and at least one pair of gap sensors 3 are symmetrically arranged on the edge of the substrate 1 and electrically connected with the power supply and used for monitoring the gap between the substrate 1 and the supporting plate 2. The gap sensor 3 may be a stroke sensor, an inductive sensor or a laser sensor. The gap sensor 3 can be electrically connected with the assembly line central control system, or electrically connected with an alarm system, or electrically connected with a buzzer or a signal transmission device and used for sending a gap monitoring signal. After base plate 1 and layer board 2 are locked through zero point locator 11, be located the clearance sensor 3 at 1 edge of base plate and activated, when zero point locator 11 takes place not hard up or unhook open-ended condition, the change of 3 data of clearance sensor can all be touched in the removal that layer board 2 took place arbitrary orientation, when clearance sensor 3 discovers the 2 displacement condition of layer board, in time send clearance change alarm signal, thereby it is unusual to warn staff fixture device, or stop assembly line work at once, avoid the property or the personal damage that the work piece further drops the emergence.

The back of the supporting plate 2 is provided with a clamping device 4, the clamping device 4 comprises a driving air cylinder 41 and an electromagnetic valve 42, a female air interface 13 communicated with an air pipeline is arranged on the substrate 1, a male air interface 25 matched with the supporting plate 2 is arranged on the supporting plate 2, the male air interface 25 is communicated with the driving air cylinder 41 through the electronic valve 42, and the electromagnetic valve 42 is electrically connected with the gap sensor 3. A female pin module 12 for signal transmission is arranged on the substrate 1, a male pin module 24 matched with the female pin module is arranged on the supporting plate 2, and the male pin module 24 is electrically connected with an electronic valve 42.

As shown in fig. 4, the signal transmission male pin module 24 includes a pin head module 121 and a housing 122, the pin head module 121 is connected to the housing 122 through a stepped bolt 123, and a sealing ring 124 is disposed between the pin head module 121 and the housing 122. Needle module 121 is fixed on casing 122 again through two step bolts 1231, and step bolt 123 has the location optical axis section, guarantees to have certain clearance after the locking between bolt location section and casing 122, and this clearance combines flexible sealing ring 124 to realize floating of whole structure jointly. The hour hand module 121 contacts the female hand module 12 first, and then the male hand module and the female hand module 12 are inserted into each other. The locking of base plate 1 and layer board 2 is realized promptly signal transmission switches on, and the floating structure of signal transmission pin module 24 solves the not centering problem in actually inserting.

The electromagnetic valve 42 is electrically connected with the gap sensor 3, and after the gap sensor 3 sends an alarm signal, the electromagnetic valve 42 controls the driving cylinder 41 to enable the clamp device 4 to lock the clamped workpiece, so that the workpiece is prevented from falling off due to the displacement of the supporting plate 2.

As shown in fig. 5, the female air interface 13 includes a valve body, a sliding ring 131 and a return spring 132, the sliding ring 131 is disposed at an opening of the valve body and slides along an inner edge of the valve body, the return spring 132 is disposed below the sliding ring 131, when the sliding ring 131 is located at the top of the opening of the valve body, the sliding ring 131 closes the female air interface 13, the male air interface 25 has a protruding valve core 251, a supporting spring 252 is disposed behind the valve core 251, and the valve core 251 can press down the sliding ring 131 to communicate with an air passage.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. The accurate zero point positioning device is characterized in that a power supply is arranged on the base plate, and at least one pair of gap sensors are symmetrically arranged on the edge of the base plate and electrically connected with the power supply for monitoring the gap between the base plate and the supporting plate.

2. The zero point accurate positioning device of claim 1 wherein said zero point positioning system comprises at least three zero point positioners, said zero point positioners having respectively disposed thereon a zero point positioning pin, a locking positioning pin and a one-way positioning pin for mating with said zero point positioners.

3. An accurate zero point positioning device according to claim 1, characterized in that the back side of the carrier is provided with clamping means.

4. The apparatus of claim 3, wherein the fixture means comprises a driving cylinder and a solenoid valve, a female air port communicating with an air line is disposed on the base plate, a male air port matching with the base plate is disposed on the support plate, the male air port communicates with the driving cylinder through an electronic valve, and the solenoid valve is electrically connected with the gap sensor.

5. The precise zero point positioning device according to claim 4, wherein the electromagnetic valve is electrically connected to the gap sensor, that is, a female pin module for signal transmission is disposed on the base plate, a male pin module matched with the base plate is disposed on the supporting plate, and the male pin module is electrically connected to the electronic valve.

6. The zero point pinpointing device of claim 4 wherein the female gas port comprises a valve body, a slide ring and a return spring, the slide ring is disposed at the opening of the valve body and slides along the inner edge of the valve body, the return spring is disposed below the slide ring, the male gas port has a raised valve core, a support spring is disposed behind the valve core, and the valve core can press down the slide ring to communicate with the gas path.

7. An accurate zero point positioning device according to claim 5, characterized in that the male needle module comprises a needle head module and a housing, the needle head module is connected with the housing by a stepped bolt, and a sealing ring is arranged between the needle head module and the housing.