CN108515325B - A device and method for automatically installing a positioning tube of a micro-LED light emitter through air suction - Google Patents

Abstract

The invention belongs to the technical field of automatic installation and positioning of LED light emitter positioning tubes, and discloses a device for automatically installing a micro LED light emitter positioning tube through air suction, including a quick-change connecting plate, a flange connecting plate, a pressing block, and a supporting platform , a cylinder, a positioning tube containing sleeve, a vacuum generator and a push pin; the support platform is installed on the top of the quick-connect connecting plate, and the vacuum tube of the vacuum generator communicates with the positioning tube containing sleeve, and the cylinder The push pin is installed on the piston rod, and the push pin extends into the positioning tube containing sleeve, so as to push out the LED light emitter positioning tube in the positioning tube containing sleeve after the vacuum generator stops vacuuming. The invention can improve the assembly precision of the positioning tube of the LED light emitter, make the assembly more automatic, improve the production efficiency, reduce the labor cost, ensure the assembly quality and stability of the product, reduce the scrap rate, and simplify the process and requirements of the product assembly test.

Description

A device for automatically installing a positioning tube of a micro-LED light emitter through air suction and method

technical field

The invention belongs to the technical field of automatic installation and positioning of LED light emitter positioning tubes, and more specifically relates to a device and method for automatically installing a micro LED light emitter positioning tube through air suction.

Background technique

LED, also known as light-emitting diode, is a kind of semiconductor diode that can convert electrical energy into light energy. A semiconductor electronic component that converts electrical energy into light energy. Depending on the luminescent material, different wavelengths of light can be emitted to suit different application fields. Because ordinary monochrome light-emitting diodes have the advantages of small size, low working voltage, small working current, uniform and stable light emission, fast response speed, long life, etc., they can be driven by various DC, AC, pulse and other power sources to light up. Therefore, with the continuous breakthrough of related technologies, LEDs are gradually being used in wider fields, such as LED displays, OLED displays, LCD backlights, lighting sources, LED signal lights for signs and other display, lighting, and biological applications.

With the continuous development of LED display and lighting technology, and the increasing demand for products. Many LED display and lighting equipment manufacturers are constantly expanding production capacity, increasing shipments, and gradually seizing the market. However, due to the small size of the LED light emitter positioning tube, the core component of the LED display and lighting, and the small assembly tolerance error, excessive assembly errors may cause poor display and lighting effects on the display screen and lighting equipment, affect product quality, and cause Product scrapping or reassembly. At present, major domestic display screen and lighting equipment manufacturers mainly realize the positioning and assembly of LED light emitter positioning tubes manually, and use human vision to detect the final display and lighting performance of the product for repeated corrections. Therefore, in some liquid crystal display panel factories and lighting fixture factories, the assembly efficiency of LED emitter positioning tubes is low, the degree of automation is not high, and the output is not high. Manual assembly can still cope with production when the shipment volume is not large. Once orders surge It is inevitable that the production requirements cannot be met, resulting in increased labor or working hours and increased costs. In addition, manual assembly testing, changes in the conditions of assembly testers may easily affect product assembly and testing results, and cannot guarantee product quality stability and reliability. The scrap rate is high, and assembly deviation detection is also difficult. In order to ensure product quality, some manufacturers have to purchase high-priced foreign testing equipment at high prices, which virtually increases the cost input.

Contents of the invention

In view of the above defects or improvement needs of the prior art, the present invention provides a device and method for automatically installing the positioning tube of the micro LED light emitter through air suction, which can improve the assembly accuracy of the positioning tube of the LED light emitter, make the assembly more automatic, and improve Production efficiency, reduce labor costs, ensure product assembly quality and stability to reduce scrap rate, simplify the process and requirements of product assembly testing.

In order to achieve the above object, according to the present invention, a device for automatically installing the positioning tube of the micro-LED emitter by air suction is provided, which is characterized in that it includes a quick-change connecting plate, a flange connecting plate, a pressing block, a supporting platform, and a cylinder , the positioning tube accommodates the sleeve, the vacuum generator and the push pin, wherein,

The flange connecting plate and the pressing block are respectively installed on the lower part of the quick-change connecting plate, and the flange connecting plate is provided with a connecting boss for connecting the end of the industrial robot, and the flange connecting plate There is a first notch groove on the top, and a limit hole is set on the quick-change connecting plate, and the limit pin extends into the first notch groove and the limit hole to prevent the flange connecting plate from moving along the quick-change connecting plate. The longitudinal movement of the pressing block is connected to the flange connection plate by bolts, and the second notch groove is arranged on the pressing block, and the bolt head of the bolt is located in the second notch groove, so The screw rod of the bolt is sleeved with a compression spring, the compression spring is located between the pressure block and the bolt head of the bolt, and the quick-change connecting plate is provided with a second spring on the side corresponding to the pressure block. Three notch slots, one end of the limit rod passes through the pressure block and then extends into the third notch slot, and this end is connected to the limit block, so as to prevent the flange connecting plate from moving along the longitudinal direction of the quick-change connecting plate move;

The support platform is installed on the upper part of the quick-connect connecting plate, the vacuum generator, the positioning tube accommodating sleeve and the cylinder are installed on the support platform, the vacuum pumping tube of the vacuum generator and the positioning tube accommodating the sleeve Connected to be used to fix the LED illuminator positioning tube placed in the positioning tube accommodating sleeve by vacuuming, the push pin is installed on the piston rod of the cylinder, and the longitudinal direction of the push pin is consistent with the piston rod of the cylinder The longitudinal direction is consistent, and the push pin extends into the positioning tube containing sleeve, so as to push out the LED emitter positioning tube in the positioning tube containing sleeve after the vacuum generator stops vacuuming.

Preferably, the support platform includes a support connection plate, a connection block and a push pin support, the support connection plate is installed on the upper part of the quick change connection plate, and the connection block and the push pin support are respectively installed on the support connection The cylinder is installed on the connection block, and the positioning tube accommodating sleeve is installed on the push pin support.

Preferably, the piston rod of the cylinder is connected to the push pin through a connecting sleeve, and the connecting column passes through the connecting sleeve along the radial direction of the connecting sleeve and then extends into the pushing pin, so as to fix the connecting sleeve and sales pitches.

Preferably, the pushing pin is provided with a shoulder, so as to push out the positioning tube of the LED light emitter.

According to another aspect of the present invention, there is also provided a method for automatically installing the micro LED emitter positioning tube by using the device, which is characterized in that it includes the following steps:

1) Fix the connecting boss on the flange connecting plate to the end of the industrial robot, connect the industrial air circuit, calibrate the TCP coordinate system of the industrial robot, and write the predetermined assembly movement trajectory;

2) Install the positioning tube of the LED emitter into the housing sleeve of the positioning tube, and then detect whether the positioning tube of the LED emitter has been installed through the pressure sensor in the vacuum pumping tube of the vacuum generator, and send a signal to the PLC, and the PLC controls the pumping of the vacuum generator. Vacuum, fix the LED emitter positioning tube in the positioning tube containing sleeve by vacuuming;

3) The end of the industrial robot moves to the corresponding position of the LED emitter positioning tube to be positioned above the assembly position according to the pre-written program, and is ready for assembly;

4) The vacuum generator stops vacuuming, and then the piston rod of the cylinder is controlled by the PLC to extend, and the positioning tube of the LED light emitter is pushed out to the set position through the push pin, so as to realize the positioning and assembly of the positioning tube of the LED light emitter;

5) The piston rod of the cylinder is retracted, and the end of the industrial robot returns to the position to be loaded, waiting for the LED emitter positioning tube to be installed in the positioning tube containing sleeve again;

6) Repeat step 2)-step 5) until the assembly of all LED light emitter positioning tubes is completed.

Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

1) According to the material of the LED light emitter and its tiny size characteristics and use characteristics, in order to facilitate the realization of automation, combined with the industrial robot with high repeat position assembly accuracy, the assembly process is decomposed into two parts, and the assembly process is divided into two parts through pneumatic suction. According to the precise positioning profile designed by the surface processing of the LED emitter positioning tube, the stable positioning of the LED emitter positioning tube is realized, and the position is maintained by air suction. The stable and good positioning and assembly of the assembly position is to be performed, and then the LED light emitter is assembled in the positioning tube to indirectly realize the stable position assembly and positioning of the LED light emitter.

2) Utilize the high repeatability assembly accuracy of industrial robots to improve the assembly accuracy of LED emitter positioning tubes during the product assembly stage, making assembly more automated, improving production efficiency, reducing labor costs, ensuring product assembly quality and stability, and reducing waste Efficiency, simplifying the process and requirements of product assembly testing.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the matching structure of the flange connecting plate and the briquetting block in the present invention;

Fig. 3 is a principle diagram of realizing automatic assembly in the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

Referring to Figures 1 to 3, a device for automatically installing a micro-LED emitter positioning tube through air suction is characterized in that it includes a quick-change connecting plate 4, a flange connecting plate 5, a pressing block 6, a supporting platform, and a cylinder 2 , positioning tube housing sleeve, vacuum generator 7 and push pin 10, wherein,

The flange connecting plate 5 and the pressure block 6 are respectively installed on the lower part of the quick-change connecting plate 4, and the flange connecting plate 5 is provided with a connecting boss for connecting the end of the industrial robot, the The flange connecting plate 5 is provided with a first notch groove, and the quick-change connecting plate 4 is provided with a limit hole, and the limit pin extends into the first notch groove and the limit hole to prevent the flange connecting plate 5 from Moving along the longitudinal direction of the quick-change connecting plate 4, the pressing block 6 is connected to the flange connecting plate 5 by bolts, and the pressing block 6 is provided with a second notch groove, and the bolt head of the bolt The part is located in the second notch groove, and the screw rod of the bolt is sleeved with a compression spring, and the compression spring is located between the pressure block 6 and the bolt head of the bolt, and the quick-change connecting plate 4 A third notch is provided on one side corresponding to the pressing block 6, and one end of the limiting rod passes through the pressing block 6 and then extends into the third notch and this end is connected to a limiting block for use To prevent the flange connecting plate 5 from moving longitudinally along the quick-change connecting plate 4;

The support platform is installed on the top of the quick-connect connecting plate, the vacuum generator 7, the positioning tube accommodating sleeve and the cylinder 2 are installed on the support platform, the cylinder 2 has a gas pipe joint 1, and the vacuum generator 7 The evacuation tube of the said positioning tube is communicated with the said positioning tube accommodating sleeve, so as to fix the LED emitter positioning tube 9 placed in said positioning tube accommodating sleeve by vacuuming, and said pushing pin 10 is installed on the piston rod of said cylinder 2 , and the longitudinal direction of the push pin 10 is consistent with the longitudinal direction of the piston rod of the cylinder 2, and the push pin 10 extends into the positioning tube housing sleeve for positioning the positioning after the vacuum generator 7 stops vacuuming. The LED illuminator positioning tube 9 in the tube accommodating sleeve is released.

Further, the support platform includes a support connecting plate 3, a supporting block 13 and a push pin support 8, the support connecting plate 3 is installed on the upper part of the quick change connecting plate 4, and the support block 13 and the push pin support 8 are respectively It is installed on the supporting connecting plate 3 , and the cylinder 2 is installed on the supporting block 13 , and the positioning tube accommodating sleeve is installed on the pushing pin support 8 .

Further, the piston rod of the cylinder 2 is connected to the push pin 10 through a connecting sleeve 12, and the connecting column 11 passes through the connecting sleeve 12 along the radial direction of the connecting sleeve 12 and then extends into the pushing pin 10 for use in Fix the connection sleeve 12 and push pin 10 .

Further, the pushing pin 10 is provided with a shoulder, so as to push out the positioning tube 9 of the LED light emitter.

According to another aspect of the present invention, there is also provided a method for automatically installing the micro LED emitter positioning tube 9 by using the device, which is characterized in that it includes the following steps:

1) Fix the connecting boss on the flange connecting plate 5 to the end of the industrial robot, connect the industrial air circuit, perform the calibration of the TCP coordinate system of the industrial robot, and write the predetermined assembly movement track;

2) Install the LED light emitter positioning tube 9 into the positioning tube containing sleeve, and then detect whether the LED light emitter positioning tube 9 has been installed through the pressure sensor in the vacuum tube of the vacuum generator 7, and send a signal to the PLC, and the PLC controls the vacuum The generator 7 is vacuumed, and the LED light emitter positioning tube 9 is fixed in the positioning tube containing sleeve by vacuuming;

3) The end of the industrial robot moves to the upper part of the LED emitter positioning tube 9 according to the pre-written program, and prepares for assembly;

4) The vacuum generator 7 stops vacuuming, and then the PLC controls the piston rod of the cylinder 2 to stretch out, and the LED light emitter positioning tube 9 is pushed out to the set position through the push pin 10, so as to realize the positioning and assembly of the LED light emitter positioning tube 9;

5) The piston rod of the cylinder 2 is retracted, and the end of the industrial robot returns to the position to be loaded, waiting for the LED light emitter positioning tube 9 to be installed in the positioning tube containing sleeve again;

6) Step 2)-step 5) are repeated until the assembly of all LED light emitter positioning tubes 9 is completed.

According to the material of the LED light emitter and its tiny size characteristics and use characteristics, the present invention decomposes the assembly process into two parts in combination with an industrial robot with high repeat position assembly accuracy for the convenience of realizing automation. Due to the general size of the LED light emitter positioning tube 9 They are all relatively small, about 4mm. When manually picking up, the contact area between the hand and the LED emitter positioning tube 9 is small, and the stable positioning and assembly of the LED emitter positioning tube 9 cannot be guaranteed. The precision positioning surface of the positioning tube 9 is processed and designed to realize the stable positioning of the positioning tube 9 of the LED light emitter, and the position is maintained by air suction. The position is stable and good for positioning and assembly, and then the LED light emitter is assembled in the positioning tube, which indirectly realizes the stable position assembly and positioning of the LED light emitter. Utilizing the high repeatability assembly accuracy of industrial robots, the assembly accuracy of the LED light emitter positioning tube 9 is improved during the product assembly stage, making assembly more automated, improving production efficiency, reducing labor costs, ensuring product assembly quality and stability, and reducing the scrap rate. , Simplify the process and requirements of product assembly testing.

Specifically, the present invention has the following characteristics:

①Design an industrial robot flange connection plate 5, fit through the shaft hole, and pass through one reserved on the flange The pin hole and 7 M6 screw holes realize the positioning and fastening of the assembly positioning device and the flange of the industrial robot;

② Through the quick-change connecting plate 4, the fast switching of the main part of the positioning assembly of the LED emitter positioning tube 9 is realized, and the positioning is carried out through the fit of the profile and the pin shaft, and finally, the fast-change main body can be realized by locking the screw with the spring limit Quick positioning and clamping functions;

③The air suction environment is created through the air path reserved on the industrial robot, through The trachea joint 1 is connected to the device of the present invention, combined with the vacuum generator 7 in the device, a vacuum environment is formed in the small local positioning profile space of the LED light emitter positioning tube 9, and a sufficient suction force is achieved by matching the profile with the air. For the suction and positioning of the positioning tube 9 of the LED light emitter, the air pressure of 0.8Mpa is commonly used in the industry;

④Through the mutual cooperation between the sales support 8, the support block 13 and the sales pin 10, the sales pin 10 is connected to the front end of the piston rod of the cylinder 2 with a stroke of 10mm, and the positioning and assembly device of the positioning tube 9 of the LED light emitter is fixedly connected by the industrial robot. At the predetermined assembly position, push out the piston rod through pneumatic control to realize the extension of the positioning tube 9 of the LED light emitter, assemble it in the assembly hole, and realize the fast fit and positioning with the parts to be assembled through the thrust of the piston. After the assembly is completed, the piston rod drives the push pin 10 to retract through the air circuit control, and the movement of the assembly positioning device to the next assembly position is realized;

⑤ The upper part of the LED light emitter positioning tube 9 is a manual upper part, a pressure sensor and a pressure regulating valve are installed on the industrial robot, and the detection of whether the upper part is realized is realized through the pressure sensor feeling the upper part pressure when the part is manually loaded. Only when the pressure threshold is greater than a certain value, can the system be loaded by default, and the industrial robot assembly motion track program will run, otherwise, an alarm prompt will be issued to prevent the possibility of missing the loaded parts; The tight fit with the workpiece to be assembled is carried out by the thrust of the push pin 10. In order to prevent the shell of the part to be assembled from being damaged or damaged by too much thrust during assembly, or the fit is not tight due to too small assembly thrust, it can be adjusted by adjusting the pressure regulating valve. , control the air pressure of the cylinder 2 within a reasonable threshold, realize reasonable control of the thrust of the sales pin 10, and complete the accurate and good positioning and assembly of the positioning tube 9 of the LED light emitter.

Fig. 3 is a schematic diagram of realizing the automatic assembly of the LED illuminator positioning tube 9 by means of air suction according to the present invention. The inventive pneumatic LED light emitter positioning tube assembly gripper and other components are divided into two steps. First, the LED light emitter positioning tube 9 is assembled, and then the LED light emitter is assembled in the LED light emitter positioning tube 9 to realize the equipment to be assembled with the LED light emitter. Carry out the assembly of the LED emitter.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (5)

1. a kind of realize the device for installing miniature LED light emitter positioning pipe automatically by aspiration, which is characterized in that connect including quick change Fishplate bar, flange connecting plate, briquetting, support platform, cylinder, positioning pipe containment sheath, vacuum generator and distribution, wherein

The flange connecting plate and briquetting are separately mounted to the lower part of the quick change connecting plate, and set on the flange connecting plate It is equipped with connection boss, with the end for connecting industrial robot, the first gap slot is provided on the flange connecting plate, it is described Limit hole is provided on quick change connecting plate, spacer pin protrudes into the first gap slot and limit hole, for preventing flange connecting plate Along the longitudinal movement of the quick change connecting plate, the briquetting is bolted on the flange connecting plate, and the pressure The second gap slot is provided on block, the bolt head of the bolt is located in second gap slot, on the screw rod of the bolt It is socketed with compressed spring, the compressed spring is between the briquetting and the bolt head of the bolt, the quick change connection Plate is provided with third gap slot in the side for corresponding to the briquetting, and one end of gag lever post, which passes through, protrudes into described the after the briquetting In three gap slots and this end is connected with limited block, for preventing flange connecting plate from moving along the longitudinal direction of the quick change connecting plate It is dynamic；

The support platform is installed on the top of the quick change connecting plate, and the vacuum generator is installed in the support platform, is determined Position pipe containment sheath and cylinder, the vacuum-pumping tube of the vacuum generator are connected to the positioning pipe containment sheath, for leading to It crosses and vacuumizes to fix the LED light emitter positioning pipe placed in the positioning pipe containment sheath, pacify on the piston rod of the cylinder The distribution, and the vertical consistency of the piston rod of the longitudinal direction of the distribution and the cylinder are filled, it is described fixed that the distribution is protruded into In the pipe containment sheath of position, for the LED in the positioning pipe containment sheath to be shone after vacuum generator stopping vacuumizes Device positioning pipe is released.

2. a kind of device for installing miniature LED light emitter positioning pipe automatically by aspiration realization according to claim 1, It is characterized in that, the support platform includes support connecting plate, supporting block and promotes support, and the support connecting plate is mounted on described The top of quick change connecting plate, the supporting block and distribution support are separately mounted on the support connecting plate, and the supporting block It is upper that the cylinder is installed, the positioning pipe containment sheath is installed on the distribution support.

3. a kind of dress for installing miniature LED light emitter positioning pipe automatically by aspiration realization according to claim 1 or 2 It sets, which is characterized in that the piston rod of the cylinder and described promote pass through connection sleeve connection, diameter of the connecting column along connection sleeve It is extended back in the distribution to connection sleeve is passed through, for fixing the connection sleeve and distribution.

4. one kind described in any claim installs miniature LED by aspiration realization automatically and shines according to claim 1~2 The device of device positioning pipe, which is characterized in that convex shoulder is provided in the distribution, in order to release LED light emitter positioning pipe.

5. a kind of realized that installing miniature LED automatically shines using device described in any claim in Claims 1 to 4 The method of device positioning pipe, which comprises the following steps:

1) the connection boss on flange connecting plate is fixed on to the end of industrial machinery people, industrial gas circuit is connected, carries out industrial machine The calibration of device people's TCP coordinate system, and write predetermined assembly motion profile；

2) LED light emitter positioning pipe is installed in positioning pipe containment sheath, then in the vacuum-pumping tube for passing through vacuum generator Whether pressure sensor detection LED light emitter positioning pipe has been installed, and sends a signal to PLC, and PLC controls vacuum generator and takes out very LED light emitter positioning pipe is fixed in positioning pipe containment sheath by sky by way of vacuumizing；

3) end of industrial robot moves on the corresponding rigging position to be positioned of LED light emitter positioning pipe by prelisting to program Side carries out assembly and prepares；

4) vacuum generator stopping vacuumizes, and the piston rod that then PLC controls cylinder stretches out, and is determined LED light emitter by promoting Position pipe is released to setting position, to realize the positioning and assembly of LED light emitter positioning pipe；

5) piston rod of cylinder is withdrawn, and the end of industrial robot is returned to piece uploading position, is waited and is accommodated set in positioning pipe again LED light emitter positioning pipe is installed in pipe；

6) step 2)-step 5) is repeated, the assembly until completing all LED light emitter positioning pipes.