CN112253712B

CN112253712B - Linear transmission device

Info

Publication number: CN112253712B
Application number: CN202011185449.1A
Authority: CN
Inventors: 李金宽; 柳在鑫; 张均富; 李玲玉; 廖鸿辉; 汪旭东; 祁岩
Original assignee: Xihua University
Current assignee: Xihua University
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-08-16
Anticipated expiration: 2040-10-30
Also published as: CN112253712A

Abstract

The invention relates to the technical field of automation equipment, in particular to a linear transmission device; including base, apron, linear drive arrangement, slip subassembly and position detection subassembly, the both ends of base are equipped with the end cover, inside linear drive arrangement and the slip subassembly of setting up of base, two carriages are installed to the upper end symmetry of slip subassembly, the slip subassembly carries out linear motion under linear drive arrangement's drive, the position detection subassembly includes infrared receiver and infrared ray generator, the apron is including apron main part and two supporting parts, the both ends symmetry of apron main part sets up the supporting part, apron main part and two supporting parts are the integrated into one piece structure, the line hole is placed to the inside symmetry of supporting part, still be provided with a plurality of louvres on the supporting part, the inside pre-buried strengthening rib subassembly that sets up of apron main part. The invention has the advantages of light structure, convenient use and high-precision fixed point control of the first sliding block.

Description

Linear transmission device

Technical Field

The invention relates to the technical field of automation equipment, in particular to a linear transmission device.

Background

With the continuous improvement of the automation degree of the manufacturing industry, the application range of the micro cylinder (the cylindrical metal part for guiding the piston to perform the linear reciprocating motion in the cylinder body) on product equipment is more and more extensive. Although the price of the air cylinder is relatively low, the defects of low precision, low efficiency, large vibration and the like of the air cylinder cannot meet the requirement of using the air cylinder on high-precision product equipment.

At present, in the field of automation equipment, the most common linear motion component adopted is a single-shaft manipulator, and the single-shaft manipulator is generally driven by a ball screw or a synchronous toothed belt, and a precise linear guide rail is used as a guide mechanism for realizing the functions of carrying, positioning, transferring, taking and detecting and the like in a single direction. However, in practical applications, the travel position of the sliding frame of the single-shaft manipulator needs to be detected, and when a specific position is detected, a signal is sent out and is transmitted to the control system to carry out the next action command; in addition, because the design of conventional unipolar manipulator apron, because of reasons such as self weight and structure, easily cause apron deformation, the heavy scheduling problem of monomer weight.

For this purpose, a linear drive is proposed.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems occurring in the prior art.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a linear transmission device comprises a base, a cover plate, a linear driving device, a sliding assembly and a position detection assembly, wherein end covers are arranged at two ends of the base, the linear driving device and the sliding assembly are arranged in the base, two sliding frames are symmetrically arranged at the upper end of the sliding assembly and are in sliding connection with the end covers, the sliding assembly is driven by the linear driving device to perform linear motion, the position detection assembly comprises an infrared receiver and an infrared generator, the infrared receiver is arranged at one side of the base, the infrared generator is arranged on the sliding assembly, the cover plate comprises a cover plate main body and two supporting parts, supporting parts are symmetrically arranged at two ends of the cover plate main body, the cover plate main body and the two supporting parts are of an integrally formed structure, wire placing holes are symmetrically arranged in the supporting parts, and a plurality of heat dissipation holes are further arranged on the supporting parts, the built-in reinforcing rib assembly is arranged in the cover plate main body, the controller is arranged on the outer side of the base, and the linear driving device, the infrared receiver and the infrared generator are electrically connected with the controller respectively.

Specifically, linear drive arrangement includes motor mount pad, first bearing, servo motor, second bearing and ball screw, the inside one end of base sets up the motor mount pad, and the other end sets up first bearing, installation servo motor in the motor mount pad the preceding second bearing that sets up of motor mount pad, first bearing and second bearing are coaxial setting, set up ball screw between first bearing and the second bearing, ball screw's one end runs through the second bearing and is connected with servo motor's output.

Specifically, the infrared receiver is arranged on the first bearing.

Specifically, the sliding assembly comprises a guide rail, two sliding frames and a first sliding block, the guide rail is installed below the ball screw, the middle of the first sliding block is fixed on a screw matched with the ball screw, the lower end of the first sliding block is connected with the guide rail in a sliding mode and slides along the guide rail under the driving of the ball screw, and the two sliding frames are symmetrically installed at the upper end of the first sliding block.

Specifically, one side of two carriage symmetries all is provided with a pair of second slider, be provided with on the supporting part with second slider assorted spout.

Specifically, the infrared generator is arranged on the first sliding block and faces the infrared receiver.

Specifically, the reinforcing rib assembly comprises a plurality of longitudinal ribs arranged at intervals and a plurality of transverse ribs fixedly connected to the longitudinal ribs at intervals, and the longitudinal ribs and the transverse ribs are made of aluminum materials.

Specifically, the integrally molded structure of the cover main body and the two support portions is made of an aluminum material.

The invention has the beneficial effects that: according to the invention, the infrared receiver and the infrared generator are arranged, so that the moving position of the sliding assembly can be monitored in real time, the infrared generator sends out an infrared signal, the infrared receiver can receive the infrared signal and feed back the infrared signal to the controller, and the controller carries out the next action instruction, so that the problem of detecting the moving position of the sliding assembly is solved; the wire placing holes are arranged, so that the quality of the supporting part can be effectively reduced, the material is saved, and the wires can be hidden in the wire placing holes, so that the generation of complex circuits is avoided; the radiating holes are arranged for timely radiating heat generated by the working of the electric wire, so that the service life of an electric phase is prolonged; through setting up pre-buried strengthening rib subassembly in apron main part inside, can improve the intensity of apron main part under the condition that does not influence the result of use, make the difficult emergence deformation of apron main part to vertical muscle and horizontal muscle are made by the aluminium material, can further alleviate the weight of apron main part, and the structure is light and handy, convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a base according to an embodiment of the present invention;

fig. 3 is a longitudinal structural diagram of a cover plate according to an embodiment of the present invention.

Reference numerals: the device comprises a base 1, a sliding groove 2, a sliding frame 3, an end cover 4, a ball screw 5, a servo motor 6, a second bearing 7, a motor mounting seat 8, an infrared generator 9, a first sliding block 10, a first bearing 11, an infrared receiver 12, a cover plate main body 13, a transverse rib 14, a longitudinal rib 15, a heat dissipation hole 16, a wire releasing hole 17 and a supporting part 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the accompanying drawings 1-3, a linear transmission device comprises a base 1, a cover plate, a linear driving device, a sliding assembly and a position detection assembly, wherein end covers 4 are arranged at two ends of the base 1, the linear driving device and the sliding assembly are arranged inside the base 1, two sliding frames 3 are symmetrically arranged at the upper end of the sliding assembly, the two sliding frames 3 are connected with the end covers 4 in a sliding manner, the sliding assembly is driven by the linear driving device to perform linear motion, the position detection assembly comprises an infrared receiver 12 and an infrared generator 9, the infrared receiver 12 is arranged at one side of the base 1, the infrared generator 9 is arranged on the sliding assembly, the cover plate comprises a cover plate main body 13 and two supporting parts 18, the supporting parts 18 are symmetrically arranged at two ends of the cover plate main body 13, and the cover plate main body 13 and the two supporting parts 18 are of an integrally formed structure, wire placing holes 17 are symmetrically formed in the supporting portion 18, a plurality of heat dissipation holes 16 are further formed in the supporting portion 18, a pre-buried reinforcing rib assembly is arranged in the cover plate main body 13, a controller is arranged on the outer side of the base 1, and the linear driving device, the infrared receiver 12 and the infrared generator 9 are electrically connected with the controller respectively; according to the invention, the infrared receiver 12 and the infrared generator 9 are arranged, so that the moving position of the sliding assembly can be monitored in real time, the infrared generator 9 sends out an infrared signal, the infrared receiver 12 can receive the infrared signal and feed back the infrared signal to the controller, and the controller carries out the next action instruction, so that the problem of detecting the moving position of the sliding assembly is solved; by arranging the wire placing hole 17, the quality of the supporting part 18 can be effectively reduced, the material is saved, and the wire can be hidden in the wire placing hole 17, so that a complex circuit is avoided; the heat dissipation holes 16 are arranged for timely dissipating heat generated by the working of the electric wire, so that the service life of an electric phase is prolonged; through at the inside pre-buried strengthening rib subassembly that sets up of apron main part 13, can improve the intensity of apron main part 13 under the condition that does not influence the result of use, make apron main part 13 be difficult for taking place deformation to vertical muscle 15 and horizontal muscle 14 are made by the aluminium material, can further alleviate the weight of apron main part 13, and the structure is light and handy, convenient to use.

Specifically, linear drive arrangement includes motor mount pad 8, first bearing 11, servo motor 6, second bearing 7 and ball screw 5, the inside one end of base 1 sets up motor mount pad 8, and the other end sets up first bearing 11, installation servo motor 6 in the motor mount pad 8 the preceding second bearing 7 that sets up of motor mount pad 8, first bearing 11 and second bearing 7 are coaxial setting, set up ball screw 5 between first bearing 11 and the second bearing 7, ball screw 5's one end is run through second bearing 7 and is connected with servo motor 6's output.

Specifically, the infrared receiver 12 is disposed on the first bearing 11.

Specifically, the sliding assembly comprises a guide rail, two sliding frames 3 and a first sliding block 10, the guide rail is installed below the ball screw 5, the middle of the first sliding block 10 is fixed on a nut matched with the ball screw 5, the lower end of the first sliding block 10 is connected with the guide rail in a sliding mode, the first sliding block slides along the guide rail under the driving of the ball screw 5, and the two sliding frames 3 are symmetrically installed at the upper end of the first sliding block 10.

Specifically, a pair of second sliding blocks is arranged on each of the symmetrical sides of the two sliding frames 3, and a sliding groove 2 matched with the second sliding blocks is arranged on the supporting part 18; through setting up second slider and spout 2, can realize sliding between carriage 3 and the supporting part 18 on the one hand, on the other hand can also improve the stability of carriage 3 gliding on the supporting part 18, has improved the stability of carriage 3 operation.

Specifically, the infrared generator 9 is disposed on the first slider 10, and is disposed toward the infrared receiver 12.

Specifically, the strengthening rib subassembly includes that vertical muscle 15 and many intervals rigid couplings that many intervals set up are in many horizontal muscle 14 on the vertical muscle 15, vertical muscle 15 and horizontal muscle 14 are made by the aluminium material, can improve the intensity of apron main part 13 under the condition that does not influence the result of use, make apron main part 13 be difficult for taking place deformation to vertical muscle 15 and horizontal muscle 14 are made by the aluminium material, can further alleviate the weight of apron main part 13, and the structure is light and handy, convenient to use.

Specifically, the integrally molded structure of the cover main body 13 and the two support portions 18 is made of an aluminum material, and the weight of the cover main body 13 and the support portions 18 can be further reduced.

The working process of the invention is as follows: during the use, first slider 10 is under servo motor 6's effect, along ball screw 5 direction transmission, and simultaneously, two carriages 3 remove together with first slider 10, and two carriages 3 slide along two supporting parts 18, cooperation infrared receiver 12 and infrared generator 9, the shift position that can real-time supervision slip subassembly, infrared generator 9 sends infrared signal, infrared receiver 12 can accept infrared signal, and feedback to controller, remove the action instruction on next step by the controller, can realize the fixed point control to first slider 10 high accuracy, and the structure is light and handy, high durability and convenient use.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A linear transmission device comprises a base, a cover plate, a linear driving device, a sliding assembly and a position detection assembly, and is characterized in that end covers are arranged at two ends of the base, the linear driving device and the sliding assembly are arranged in the base, two sliding frames are symmetrically arranged at the upper end of the sliding assembly and are connected with the end covers in a sliding manner, the sliding assembly is driven by the linear driving device to perform linear motion, the position detection assembly comprises an infrared receiver and an infrared generator, the infrared receiver is arranged at one side of the base, the infrared generator is arranged on the sliding assembly, the cover plate comprises a cover plate main body and two supporting parts, supporting parts are symmetrically arranged at two ends of the cover plate main body, the cover plate main body and the two supporting parts are of an integrally formed structure, wire placing holes are symmetrically arranged in the supporting parts, the supporting part is also provided with a plurality of heat dissipation holes, the cover plate main body is internally provided with a pre-buried reinforcing rib assembly, the outer side of the base is provided with a controller, and the linear driving device, the infrared receiver and the infrared generator are respectively electrically connected with the controller; the reinforcing rib assembly comprises a plurality of longitudinal ribs arranged at intervals and a plurality of transverse ribs fixedly connected to the longitudinal ribs at intervals, and the longitudinal ribs and the transverse ribs are both made of aluminum materials; the integrated structure of the cover plate main body and the two support parts is made of an aluminum material.

2. The linear transmission device according to claim 1, wherein the linear driving device comprises a motor mounting seat, a first bearing, a servo motor, a second bearing and a ball screw, the motor mounting seat is arranged at one end inside the base, the first bearing is arranged at the other end inside the base, the servo motor is arranged in the motor mounting seat, the second bearing is arranged in front of the motor mounting seat, the first bearing and the second bearing are coaxially arranged, the ball screw is arranged between the first bearing and the second bearing, and one end of the ball screw penetrates through the second bearing and is connected with an output end of the servo motor.

3. A linear actuator as claimed in claim 2, wherein the infrared receiver is provided on the first bearing.

4. The linear transmission device according to claim 2, wherein the sliding assembly includes a guide rail installed below the ball screw, two sliding frames, and a first slider fixed at a middle portion thereof to a nut engaged with the ball screw, the first slider being slidably coupled at a lower end thereof to the guide rail and being slid along the guide rail by the ball screw, the two sliding frames being symmetrically installed at an upper end of the first slider.

5. A linear transmission according to claim 4, wherein a pair of second sliding blocks are arranged on each of symmetrical sides of the two sliding frames, and sliding grooves matched with the second sliding blocks are arranged on the supporting parts.

6. A linear actuator as claimed in claim 4, wherein the infrared generator is provided on the first slider and is disposed towards the infrared receiver.