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CN-122014817-A - High-precision electric sliding table with grating ruler for closed-loop pipeline

CN122014817ACN 122014817 ACN122014817 ACN 122014817ACN-122014817-A

Abstract

The invention relates to the technical field of precision transmission equipment, in particular to a high-precision electric slipway with a grating ruler and a closed loop pipeline, which comprises a base, wherein the left side and the right side of the top of the base are fixedly connected with linear guide rails, the surface sliding sleeve of the linear guide rail is provided with a sliding block, the left side of the sliding block is provided with a grating reading head, the front side and the rear side of the sliding block are provided with guide side plates through bolts, and the left side and the right side of the inner side of the guide side plates are provided with guide sliding grooves. The U-shaped circulating channel is matched with the arc-shaped guide block, so that steel balls smoothly turn along an arc track, the problem of clamping stagnation of a traditional channel is thoroughly solved, backflow is smoother, a polytetrafluoroethylene coating reduces friction coefficient, transmission efficiency is improved, a glass grating ruler component is adopted to directly measure displacement of a sliding block, an indirect measurement accumulated error is avoided, an incremental PID algorithm realizes quick deviation correction, positioning accuracy and repeated positioning accuracy are improved, long-term work does not have precision drift, and positioning accuracy is high and stable.

Inventors

  • WANG MIAO
  • MO WENHUAN
  • LI ZHITAO
  • LIU XINGTIAN
  • LIU PENGYUN

Assignees

  • 友川控制技术(东莞)有限公司

Dates

Publication Date
20260512
Application Date
20260130

Claims (9)

  1. 1. Take electronic slip table of grating chi closed loop pipeline high accuracy, including base (1), its characterized in that, the equal fixedly connected with linear guide (12) in the left and right sides at base (1) top, the surface sliding sleeve of linear guide (12) is equipped with slider (9), grating reading head (3) are installed in the left side of slider (9), guide curb plate (20) are all installed through the bolt in the front and back both sides of slider (9), guide runner (21) have all been seted up in the left and right sides of guide curb plate (20) inboard, removal spout (22) have all been seted up to the lateral wall in slider (9) inner chamber, removal slide (23) have all been seted up to the left and right sides of slider (9) inside, fixing base (16) are installed through the bolt to the front side in base (1) inner chamber movable mounting ball (11), the surface movable sleeve of ball (11) is equipped with nut seat (15), U type circulation channel (17) have been seted up through the bolt in the inner chamber of nut seat (15), guide block (18) are all inlayed at the both ends in U type circulation channel (17) inner chamber, base (1) are installed through the left and right sides shock absorber (25) of base (1).
  2. 2. The high-precision electric sliding table with the grating ruler closed-loop pipeline according to claim 1, wherein a transmission seat (8) is arranged on the rear side of the base (1) through bolts, a driving assembly (7) is arranged on the rear side of the transmission seat (8) through bolts, the rear side of the ball screw (11) and an output shaft of the driving assembly (7) penetrate through an inner cavity of the transmission seat (8), a coupler (13) is fixedly arranged between the rear side of the ball screw (11) and the inner cavity of the transmission seat, and sealing bearings (14) are respectively sleeved between the two sides of the surface of the ball screw (11) and the transmission seat (16) and between the two sides of the surface of the ball screw (11) and the transmission seat (8).
  3. 3. The high-precision electric sliding table with the grating ruler closed-loop pipeline according to claim 2, wherein a motion controller (5) is installed on the left side of the transmission seat (8) through a bolt, an electromagnetic filtering module (6) is installed on the top of an inner cavity of the motion controller (5) in an embedded mode, the output end of the electromagnetic filtering module (6) is electrically connected with the signal input end of the motion controller (5), and a signal connecting wire (24) is fixedly connected with the rear side of the motion controller (5).
  4. 4. The high-precision electric sliding table with the grating ruler closed-loop pipeline according to claim 1, wherein the left side of the sliding block (9) is provided with a mounting bracket (2) through a bolt, the outer surface of the grating reading head (3) is wrapped and connected with a magnetic conductive alloy shell (33), and the inner side of the mounting bracket (2) is fixedly connected with the magnetic conductive alloy shell (33) through a bolt.
  5. 5. The high-precision electric sliding table with the grating ruler closed-loop pipeline according to claim 1 is characterized in that the base (1) and the linear guide rail (12) are of an integrated structure, and steel ball assemblies (19) are slidably arranged in the inner cavities of the guide sliding groove (21), the moving sliding groove (22), the moving sliding groove (23) and the U-shaped circulating channel (17).
  6. 6. The high-precision electric sliding table with grating ruler closed-loop pipeline according to claim 1, wherein the glass grating ruler (4) comprises a ruler body (30), a copper foil shielding layer (31) is attached to the outer surface of the ruler body (30), and a grounding copper net (32) is attached to the outer surface of the copper foil shielding layer (31).
  7. 7. The high-precision electric sliding table with grating ruler closed-loop pipeline according to claim 1, wherein the damping base cushion (25) comprises a damping rubber base cushion (28), an Mn-Cu damping alloy layer (27) is embedded and installed at the top of the damping rubber base cushion (28), a damping rubber top layer (26) is adhered to the top of the damping rubber base cushion (28) in an adhesive mode, and a metal bottom plate (29) is adhered to the bottom of the damping rubber base cushion (28) in an adhesive mode.
  8. 8. The high-precision electric sliding table with the grating ruler and the closed loop pipeline according to claim 1, wherein the cross section of the U-shaped circulating channel (17) is a semicircular groove, the inner wall of the groove is covered with a polytetrafluoroethylene coating, the arc-shaped guide block (18) is made of polyformaldehyde, and chamfer structures are arranged at two ends of the arc-shaped guide block.
  9. 9. The high-precision electric sliding table with the grating ruler closed-loop pipeline according to claim 1, wherein a cover plate (10) is mounted on the front side of the base (1) through bolts, and two sides of the inner side of the guide sliding groove (21) are respectively communicated with the moving sliding groove (22) and the moving sliding groove (23).

Description

High-precision electric sliding table with grating ruler for closed-loop pipeline Technical Field The invention relates to the technical field of precision transmission equipment, in particular to a high-precision electric sliding table with a grating ruler for a closed-loop pipeline. Background The electric sliding table is used as a core transmission component, the performance of the electric sliding table directly determines the working precision and reliability of terminal equipment, and the electric sliding table specifically refers to industrial equipment realizing linear motion through electric driving and is mainly used for positioning, carrying and precise control in an automation scene. Through retrieving, the bulletin number is CN218472953U, and the name is unipolar electronic slip table, the on-line screen storage device comprises a base, base top one side middle part fixedly connected with servo motor discovers through research analysis, and though can realize that the fixed pin breaks away from the last piece that closes, makes things convenient for the staff to overhaul, can reduce staff's work load, is favorable to improving work efficiency, nevertheless still has following defect to a certain extent. If the steel ball of the electric sliding table is circularly in an external pipe type or a semi-built-in type channel, the structural design of the channel is unreasonable, the steel ball is easy to collide and jam during the circular steering, so that the reflux clamping stagnation is caused, and the friction coefficient between the steel ball and the inner wall of the channel is larger, so that the transmission efficiency is further reduced; the sliding table adopts an open-loop control or semi-closed-loop control mode, and depends on a self-carried encoder of a servo motor to carry out displacement detection, the mode belongs to indirect measurement, accumulated deviation caused by screw transmission errors, assembly errors and the like cannot be avoided, the positioning accuracy drifts along with working time and load changes, long-term stability requirements of a high-accuracy scene are difficult to meet, and in order to solve the technical problems, the high-accuracy electric sliding table with the grating ruler and the closed-loop pipeline is designed. Disclosure of Invention The invention aims to provide a high-precision electric sliding table with a grating ruler for a closed-loop pipeline, which has the advantages of smooth steel ball backflow, reduced friction coefficient, improved transmission efficiency, high and stable positioning precision and no precision drift in long-term operation, and solves the problems of high steel ball backflow clamping stagnation, high friction coefficient, low transmission efficiency and positioning precision drift caused by an open-loop control mode or a semi-closed-loop control mode of the traditional sliding table. The high-precision electric sliding table with the grating ruler closed-loop pipeline comprises a base, wherein the left side and the right side of the top of the base are fixedly connected with linear guide rails, sliding sleeves are sleeved on the surfaces of the linear guide rails, grating reading heads are installed on the left sides of the sliding blocks, guiding side plates are installed on the front side and the rear side of the sliding blocks through bolts, guiding sliding grooves are formed in the left side and the right side of the inner side of each guiding side plate, moving sliding grooves are formed in the side wall of an inner cavity of the sliding block, moving sliding ways are formed in the left side and the right side of the inner cavity of the sliding block, a fixing seat is installed on the front side of the inner cavity of the base through bolts, ball screws are movably installed in the inner cavity of the fixing seat, nut seats are movably sleeved on the surfaces of the ball screws, U-shaped circulating channels are formed in the inner cavity of the nut seats, arc-shaped guiding blocks are installed at the two ends of the inner cavity of the U-shaped circulating channels, glass gratings are fixedly installed on the left side of the base, and a shock-absorbing cushion pad is installed on the left side and right side of the bottom of the base through bolts. Preferably, the rear side of base is installed the drive seat through the bolt, drive assembly is installed through the bolt to the rear side of drive seat, ball screw's rear side and drive assembly's output shaft all run through to the inner chamber of drive seat, and fixed mounting has the shaft coupling between the two, all overlap between ball screw surface's both sides and fixing base and the drive seat and be equipped with and install sealed bearing. Preferably, the left side of the transmission seat is provided with a motion controller through a bolt, the top of the inner cavity of the motion controller is internally provided with an electromagnetic filterin