CN210162338U

CN210162338U - Four-claw positioning device

Info

Publication number: CN210162338U
Application number: CN201920433169.4U
Authority: CN
Inventors: 邓朝旭
Original assignee: SHENZHEN ZHAO YANG GUANG TECHNOLOGY Co Ltd
Current assignee: SHENZHEN ZHAO YANG GUANG TECHNOLOGY Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-03-20
Anticipated expiration: 2029-03-29

Abstract

The utility model relates to a four-jaw positioner, including step motor, motor cabinet, take-up housing, four sliding block set spare, cam, product correction seat, slider apron, annular spring, location response piece, opto-coupler fixing base and base, four-jaw positioner is used for carrying out position correction to the product, and the location claw piece of sliding block set spare is main work component, and the sliding block set spare can be inside and outside removal under the drive of cam, annular spring provides the restoring force for the initial position is replied to the sliding block set spare, and the initial position that utilizes at every turn to reply is the same, rectifies the location to the product from four directions, and the next station of being convenient for is accurate to be moved. The stepping motor drives the cam to rotate 90 degrees at every time, so that the positioning assembly can act quickly, the action speed can reach 30-45K/H, the product yield is improved, the yield is increased, the cost is reduced, and meanwhile, the stepping motor is simple in structure and convenient to install and debug.

Description

Four-claw positioning device

Technical Field

The utility model relates to an automation equipment technical field especially relates to a four-jaw positioner.

Background

Due to the advantages of wide size, wide adaptability, good color uniformity, easy control and low power consumption, the LED is increasingly used, and some production equipment with high efficiency, good stability and long service life is required in the production link, namely a braider. The prior braider has multiple functions of feeding, distributing, testing, carrier tape packaging and the like, and the carrier tape packaging is convenient for product collection and transportation so as to smoothly carry out the next action. The positions of the LED chips need to be limited in testing and carrier tape packaging, and the method can also be called position correction, the production rate of the braider in the prior art is increased in order to pursue high efficiency, the existing positioning device cannot meet the requirement of high rate, positioning deviation is often caused, and therefore the electrical property testing failure is judged to be a defective product, the carrier tape is fed to scratch the product, and the appearance and the performance of the product are poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a four-jaw positioner who adapts to high production rate.

The utility model discloses a realize like this: a four-claw positioning device comprises a stepping motor, a motor base, a slider base, four slider assemblies, a cam, a product correcting base, a slider cover plate, an annular spring, a positioning induction sheet, an optical coupler fixing base and a base, wherein the slider base is arranged above the motor base, the stepping motor is arranged below the motor base, four sliding grooves are formed in the slider base and are distributed in a cross shape, the four slider assemblies are respectively arranged in the four sliding grooves in a sliding mode, the slider cover plate is arranged on the slider base, the product correcting base is arranged in the middle of the slider cover plate, each slider assembly comprises a slider, a bearing fixing pin and a positioning claw sheet, the positioning claw sheet is arranged on the slider, the bearing is fixed on the slider through the bearing fixing pin, the cam is a 4-1-minute cam, and the cam is arranged on a motor shaft of the stepping motor, step motor drives the cam rotation, and the cam rotation promotes the bearing and removes, and the bearing drives the slider assembly and removes in the spout, annular spring housing is established in slider seat side for when four slider assembly do not receive cam thrust, make slider assembly reply initial position, the inside and outside removal realization of four location claw pieces carries out position correction to the product on the product correction seat.

The four-claw positioning device further comprises a positioning induction sheet, an optical coupler fixing seat and a base, wherein the positioning induction sheet is arranged on one of the sliders and moves along with the sliders, the optical coupler is arranged on the optical coupler fixing seat, the optical coupler fixing seat is arranged on the base, and the optical coupler is used for inducing and positioning the position of the induction sheet.

The base is further provided with a slot and a base blocking piece, the slot is used for wiring, and the base blocking piece is used for fixing wiring.

The outer side surfaces of the sliding block seat and the sliding block are respectively provided with an arc-shaped groove for containing the annular spring.

The motor shaft of the stepping motor is provided with a locking sleeve, and the cam is fixed on the locking sleeve.

The positioning claw piece comprises a body and an insert, the insert is in direct contact with a product, the body is made of stainless steel materials, and the insert is made of tungsten steel materials.

The utility model has the advantages that: four-jaw positioner is used for carrying out position correction to the product, and sliding block set's location claw piece is main working part, and sliding block set can be inside and outside removal under the drive of cam, the annular spring provides the restoring force for sliding block set replies initial position, and the initial position that utilizes at every turn to reply is the same, rectifies the location to the product from four directions, and the next station of being convenient for is accurate to be moved. The stepping motor drives the cam to rotate 90 degrees at every time, so that the positioning assembly can act quickly, the action speed can reach 30-45K/H, the product yield is improved, the yield is increased, the cost is reduced, and meanwhile, the stepping motor is simple in structure and convenient to install and debug.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the four-jaw positioning device of the present invention;

FIG. 2 is a partial cross-sectional view of an embodiment of the four-jaw positioning device of the present invention;

FIG. 3 is an exploded view of an embodiment of the seal assembly with adjustable indentation according to the present invention;

fig. 4 is a schematic structural view of the positioning claw piece of the present invention.

Wherein, 1, a stepping motor; 2. a motor base; 3. a slider seat; 31. a chute; 32. an arc-shaped groove; 4. a slider assembly; 41. a slider; 411. an arc-shaped groove; 42. a bearing; 43. a bearing fixing pin; 44. a positioning claw sheet; 441. a body; 442. An insert; 5. a cam; 6. a product correcting seat; 7. a slider cover plate; 8. an annular spring; 9. positioning the induction sheet; 10. an optical coupler; 11. an optical coupler fixing seat; 13. positioning the induction sheet; 14. an optical coupler; 15. an optical coupler fixing seat; 16. a base; 161. grooving; 17. a base baffle plate; 18. and a locking sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As an embodiment of the four-jaw positioning device of the present invention, as shown in fig. 1 to 4, the four-jaw positioning device comprises a stepping motor 1, a motor base 2, a slider base 3, four slider assemblies 4, a cam 5, a product correcting base 6, a slider cover plate 7, an annular spring 8, a positioning induction sheet 9, an optical coupler 10, an optical coupler fixing base 11 and a base 16, wherein the slider base 3 is disposed above the motor base 2, the stepping motor 1 is disposed below the motor base 2, the slider base 3 is provided with four sliding grooves 31, the four sliding grooves 31 are distributed in a cross shape, the four slider assemblies 4 are respectively slidably disposed in the four sliding grooves 31, the slider cover plate 7 is disposed on the slider base 3, the product correcting base 6 is disposed at a middle position of the slider cover plate 7, the slider assemblies 4 comprise sliders 41, bearings 42, bearing fixing pins 43 and positioning jaw pieces 44, the positioning jaw pieces 44 are disposed on the sliders 41, the bearing 42 is fixed on the sliding block 41 through a bearing fixing pin 43, the cam 5 is a 4-minute 1-cam, the cam 5 is arranged on a motor shaft of the stepping motor 1, the stepping motor 1 drives the cam 5 to rotate, the cam 5 rotates to push the bearing 42 to move, the bearing 42 drives the sliding block assembly 4 to move in the sliding groove 31, the annular spring 8 is sleeved on the side surface of the sliding block seat 3 and used for enabling the sliding block assembly 4 to return to an initial position when the four sliding block assemblies 4 are not pushed by the cam 5, and the four positioning claw pieces 44 move inside and outside to realize position correction of products on the product correcting seat 6.

The following takes an LED braider as an example to describe a specific positioning process: the cam 5 is driven by the stepping motor 1 to rotate, the sliding block assembly 4 is pushed to slide outwards, the four positioning claw pieces 44 are opened, the LED chip is adsorbed by the turntable suction nozzle of the braiding machine to rotate to the middle of the opened positioning claw pieces 44, the cam 5 rotates again, the sliding block assembly 4 moves to the initial position under the restoring force action of the annular spring 8, the four positioning claw pieces 44 are tightly closed, the positioning claw pieces 44 are in contact with the LED chip in the process, the LED chip is moved to the same position of the turntable suction nozzle, and position correction is carried out, so that the next step of electrical property test and carrier tape feeding are facilitated.

The four sliding block assemblies 4 slide simultaneously under the rotation of the cam 5, the symmetry degree of the cam 5 is required to be high, the curve amplitude is consistent, the friction force borne by the sliding blocks 41 in the sliding grooves 31 is approximately the same, and the phenomenon that the LED chips deviate due to different time of returning to the initial positions is avoided. The annular spring 8 provides a consistent restoring force to the four slider assemblies 4 to avoid misalignment caused by different contact forces of the positioning claws 44 against the LED chips.

Four-jaw positioner is used for carrying out position correction to the product, and locating claw piece 44 of sliding block set 4 is main working part, and sliding block set 4 can move inside and outside under cam 5's drive, annular spring 8 returns the initial position for sliding block set and provides the restoring force, and the initial position that utilizes to reply at every turn is the same, rectifies the location to the product from four directions, and the next station of being convenient for is accurate to be moved. The stepping motor 1 drives the cam 5 to rapidly rotate for 90 degrees at each time, so that the positioning assembly can rapidly act, the action speed can reach 30-45K/H, the product yield is improved, the yield is increased, the cost is reduced, and meanwhile, the stepping motor is simple in structure and convenient to install and debug.

In this embodiment, four-jaw positioner still includes location response piece 13, opto-coupler 14, opto-coupler fixing base 15 and base 16, location response piece 13 sets up on one of them slider 41, follows slider 41 and removes, opto-coupler 14 sets up on opto-coupler fixing base 15, opto-coupler fixing base 15 sets up on base 16, opto-coupler 14 is used for responding to the position of location response piece 13. The positioning induction sheet 13 is connected to the sliding block 41 through threads, the extending distance can be freely adjusted, the front and back movement is induced by the optical coupler 14, the action induction of the whole four-claw positioning device is realized, and information is transmitted to a lower computer in the subsequent process. When the positioning claw piece 44 is opened, the positioning induction piece 13 moves to the middle of the optical coupler 14 under the driving of the sliding block 41, the optical coupler 14 is coupled, a signal is sent to a lower computer, the system defaults that the four-claw positioning device is in an opened state at the moment, the turntable suction nozzle of the turntable of the braiding machine adsorbs an LED chip, the turntable is driven by the divider to rotate to the middle of the opened positioning claw piece 44, and the cam 5 rotates again under the driving of the stepping motor 1. Under the restraint of annular spring 8, slider component 4 drives location claw piece 44 and moves to initial position, and location response piece 13 leaves opto-coupler 14, and opto-coupler 14 disconnection, signal transmission give the next machine, and the system acquiescence four-jaw positioner is in closed location state, fixes a position claw piece 44 and the contact of LED chip at this in-process, and the position correction makes the LED chip move to the same position of carousel suction nozzle to electrical property test, carrier band pan feeding on next step.

In this embodiment, the base 16 is further provided with a slot 161 and a base stop 17, the slot 161 is used for routing, and the base stop 17 is used for fixing routing.

In this embodiment, the outer side surfaces of the slider seat 3 and the slider 41 are both provided with arc-

shaped grooves

32 and 411 for accommodating the annular spring 8 and effectively positioning the annular spring 8.

In this embodiment, a locking sleeve 18 is disposed on a motor shaft of the stepping motor 1, and the cam 5 is fixed on the locking sleeve 18.

In this embodiment, the positioning claw 44 includes a body 441 and an insert 442, the insert 442 directly contacts with a product, the body 441 is made of stainless steel SUS304, and the insert 442 is made of tungsten steel, so that the wear resistance is good.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A four-claw positioning device is characterized by comprising a stepping motor, a motor base, a slider seat, four slider assemblies, a cam, a product correcting seat, a slider cover plate, an annular spring, a positioning induction sheet, an optical coupler fixing seat and a base, wherein the slider seat is arranged above the motor base, the stepping motor is arranged below the motor base, the slider seat is provided with four sliding grooves, the four sliding grooves are distributed in a cross shape, the four slider assemblies are respectively arranged in the four sliding grooves in a sliding manner, the slider cover plate is arranged on the slider seat, the product correcting seat is arranged at the middle position of the slider cover plate, each slider assembly comprises a slider, a bearing fixing pin and a positioning claw sheet, the positioning claw sheet is arranged on the slider, the bearing is fixed on the slider through the bearing fixing pin, the cam is a 4-1-minute cam, and the cam is arranged on a motor shaft of the stepping motor, step motor drives the cam rotation, and the cam rotation promotes the bearing and removes, and the bearing drives the slider assembly and removes in the spout, annular spring housing is established in slider seat side for when four slider assembly do not receive cam thrust, make slider assembly reply initial position, the inside and outside removal realization of four location claw pieces carries out position correction to the product on the product correction seat.

2. The four-jaw positioning device according to claim 1, further comprising a positioning sensing piece, an optical coupler fixing seat and a base, wherein the positioning sensing piece is arranged on one of the sliders and moves along with the sliders, the optical coupler is arranged on the optical coupler fixing seat, the optical coupler fixing seat is arranged on the base, and the optical coupler is used for sensing the position of the positioning sensing piece.

3. The four-jaw positioning device of claim 2, wherein the base is further provided with a slot and a base stop, the slot is used for routing, and the base stop is used for fixing the routing.

4. The four-jaw positioning device of claim 1, wherein the outer side surfaces of the slider seat and the slider are each provided with an arcuate groove for receiving an annular spring.

5. The four-jaw positioning device of claim 1, wherein a locking sleeve is disposed on a motor shaft of the stepping motor, and the cam is fixed on the locking sleeve.

6. The four-jaw positioning device of claim 1, wherein the positioning jaw piece comprises a body and an insert, the insert is in direct contact with a product, the body is made of stainless steel, and the insert is made of tungsten steel.