CN116292615A - High-precision linear sliding table structure - Google Patents

High-precision linear sliding table structure Download PDF

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Publication number
CN116292615A
CN116292615A CN202310314410.2A CN202310314410A CN116292615A CN 116292615 A CN116292615 A CN 116292615A CN 202310314410 A CN202310314410 A CN 202310314410A CN 116292615 A CN116292615 A CN 116292615A
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CN
China
Prior art keywords
groove
sliding
bearing
screw rod
sliding frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202310314410.2A
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Chinese (zh)
Inventor
徐庆富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Higgs Precision Machinery Suzhou Co ltd
Original Assignee
Suzhou Youliken Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Suzhou Youliken Intelligent Technology Co ltd filed Critical Suzhou Youliken Intelligent Technology Co ltd
Priority to CN202310314410.2A priority Critical patent/CN116292615A/en
Publication of CN116292615A publication Critical patent/CN116292615A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/061—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing mounting a plurality of bearings side by side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H2019/0668—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member with open loop, e.g. with the free ends of the flexible member fixed to the casing, e.g. when the drive means are arranged on the carriage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2031—Actuator casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

The invention relates to a high-precision linear sliding table structure, which comprises: the shell comprises a shell body, a sliding frame groove horizontally penetrating through the shell body, sliding piece grooves penetrating through the shell body and positioned on two sides of the sliding frame groove, a limit groove communicated with the sliding frame groove and the sliding piece groove, and a pin plate groove arranged at the top of the sliding piece groove; the sliding frame comprises a sliding frame body arranged in a sliding frame groove, a screw rod groove penetrating through the sliding frame body, limiting plates integrally connected to two sides of the sliding frame body and matched with the limiting grooves, convex strips integrally connected to the tops of the limiting plates and pin plates integrally connected to the tops of the convex strips and matched with the pin plate grooves; according to the invention, the screw rod shaft and the screw rod groove which are matched with each other are arranged, and when the motor rotates, the screw rod shaft drives the sliding frame and the panel to move; by means of the cooperation between the structures, the sliding frame is ensured not to shake and deviate when sliding, and the linear conveying precision is improved.

Description

High-precision linear sliding table structure
Technical Field
The invention belongs to the technical field of linear sliding tables, and particularly relates to a high-precision linear sliding table structure.
Background
The linear sliding table is also called a linear module, can realize linear motion of the load through combination of all units, so that automation of light load is more flexible, and the linear sliding table has been widely applied in the fields of ships, maritime work, buildings and the like at present.
The existing linear sliding table usually depends on a ball screw as a main driving piece, and then drives a working panel to linearly move, and the existing linear sliding table has the following defects:
the ball screw part of the linear sliding table is exposed in the air for a long time, and dust in the air can enter the ball screw under long-time working, so that the precision of the linear sliding table is affected; moreover, the existing linear sliding table is easy to shake when bearing heavy load, so that the working panel moves and vibrates due to instability, and the sliding precision of the linear sliding table is also affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-precision linear sliding table structure.
In order to achieve the above purpose, the invention adopts the following technical scheme: a high-precision linear sliding table structure comprises:
the shell comprises a shell body, a sliding frame groove horizontally penetrating through the shell body, sliding piece grooves penetrating through the shell body and positioned on two sides of the sliding frame groove, a limit groove communicated with the sliding frame groove and the sliding piece groove, and a pin plate groove arranged at the top of the sliding piece groove;
the sliding frame comprises a sliding frame body arranged in a sliding frame groove, a screw rod groove penetrating through the sliding frame body, limiting plates integrally connected to two sides of the sliding frame body and matched with the limiting grooves, convex strips integrally connected to the tops of the limiting plates and pin plates integrally connected to the tops of the convex strips and matched with the pin plate grooves;
the end covers are fixed at two ends of the shell;
the screw rod comprises a screw rod shaft penetrating through the end cover and matched with the screw rod groove;
the first bearing is sleeved at one end of the screw rod shaft;
the second bearing is sleeved at the other end of the screw rod shaft;
and the panel is fixed on the top of the pin plate.
Optimally, the shell further comprises an upper belt groove, a lower belt groove, a sliding rail groove and a guide groove, wherein the upper belt groove is formed in two sides of the pin plate groove, the lower belt groove penetrates through the shell and is located below the sliding piece groove, the sliding rail groove is formed in the bottom of the sliding piece groove, the guide groove is formed in the top of the sliding frame groove, and the upper belt groove is matched with the lower belt groove.
Preferably, the housing further comprises an upper ejector block integrally connected to the bottom of the upper belt groove and a lower ejector block integrally connected to the top of the lower belt groove.
Optimally, the sliding frame further comprises a guide bar integrally connected to the top of the sliding frame body and matched with the guide groove, an oil injection groove formed in the guide bar and communicated with the screw rod groove, a sliding block groove formed in the bottom of the limiting plate, a sliding block baffle integrally connected to the outer side of the limiting plate and embossing arranged at the top of the raised line.
Optimally, the anti-collision device further comprises a sliding part arranged in the sliding part groove, an avoidance groove formed in one opposite side of the end cover and a protection belt wound in the avoidance groove, wherein two ends of the protection belt are fixed on the embossing, and the inner side of the protection belt is respectively abutted to the top of the upper jacking block and the bottom of the lower jacking block.
Optimally, the sliding piece comprises a sliding rail fixed in a sliding rail groove, a positioning groove arranged on the outer side of the sliding rail, a sliding block slidably arranged on the sliding rail, a sliding rail groove arranged at the bottom of the sliding block, and a positioning block integrally connected in the sliding rail groove and matched with the positioning groove, wherein the sliding block is fixed at the bottom of the sliding block groove.
Optimally, the screw rod further comprises a left stepped shaft integrally connected with one end of the screw rod shaft, a motor connecting shaft integrally connected with one end of the left stepped shaft, a right stepped shaft integrally connected with the other end of the screw rod shaft and a clamp spring groove formed in the right stepped shaft, the first bearing sleeve is arranged on the left stepped shaft, and the second bearing sleeve is arranged on the right stepped shaft.
Optimally, the first bearing comprises a first bearing inner ring and a first bearing outer ring which are sleeved with each other, a first lower clamping groove and a first upper clamping groove which are formed in one sides of the first bearing inner ring and the first bearing outer ring opposite to each other, a first bearing ball which is circumferentially arranged in the first lower clamping groove and the first upper clamping groove, and an inclined plane which is arranged on one side of the first upper clamping groove.
Optimally, the second bearing comprises a second bearing inner ring and a second bearing outer ring which are sleeved with each other, a second lower clamping groove and a second upper clamping groove which are formed in one side of the second bearing inner ring and the second bearing outer ring opposite to each other, and a second bearing ball which is circumferentially arranged in the second lower clamping groove and the second upper clamping groove.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the high-precision linear sliding table structure, the screw rod shaft and the screw rod groove which are matched with each other are arranged, when the motor rotates, the screw rod shaft drives the sliding frame and the panel to move, and in the moving process, vibration generated during conveying is reduced by means of the first bearing and the second bearing; the sliding frame is ensured not to shake and deviate when bearing heavy load sliding by virtue of the matching of the sliding frame body and the sliding frame groove, the matching of the limiting plate and the limiting groove and the matching of the pin plate and the pin plate groove, so that the linear conveying precision is improved;
further, under the action of the sliding rail, the sliding block and the protective belt, vibration of the sliding frame during sliding is reduced, and accuracy during linear conveying is improved;
further, the arrangement of the upper jacking block and the lower jacking block avoids transitional abrasion of the inner side of the protection belt, and meanwhile, the thickness of the protection belt can be kept uniform, and shaking caused by different abrasion degrees of the inner side of the protection belt is avoided;
further, the contact area between the first bearing ball and the first bearing outer ring is reduced due to the arrangement of the inclined plane, so that transitional abrasion of the first bearing ball is avoided;
further, the threaded ring and the snap spring limit axial deflection of the first bearing and the second bearing.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the housing of the present invention;
FIG. 4 is a front view of the housing of the present invention;
FIG. 5 is a schematic view of a carriage according to the present invention;
FIG. 6 is a cross-sectional view of a carriage of the present invention;
FIG. 7 is a schematic view of a part of a carriage of the present invention;
FIG. 8 is a schematic view of a sliding rail according to the present invention;
FIG. 9 is a schematic view of a slider according to the present invention;
FIG. 10 is a schematic diagram of a guard band according to the present invention;
FIG. 11 is a cross-sectional view of a first bearing of the present invention;
FIG. 12 is a front view of a first bearing of the present invention;
FIG. 13 is a cross-sectional view of a second bearing of the present invention;
FIG. 14 is a schematic view of the structure of the screw of the present invention;
FIG. 15 is a schematic view of a partial structure of a screw of the present invention;
FIG. 16 is a diagram of the positional relationship of the first bearing, the second bearing and the lead screw of the present invention;
FIG. 17 is a diagram showing the positional relationship between a second bearing and a snap spring according to the present invention;
reference numerals illustrate:
1. a housing; 101. a housing; 102. a carriage groove; 103. a slider groove; 104. a limit groove; 105. pin plate grooves; 106. an epithelial trough; 107. an upper top block; 108. the lower leather belt groove; 109. a lower top block; 1010. a slide rail groove; 1011. a guide groove;
2. a carriage; 201. a carriage body; 202. a screw groove; 203. a guide bar; 204. a limiting plate; 205. a convex strip; 206. a pin plate; 207. embossing; 208. a slider groove; 209. an oil injection groove; 2010. a slide block baffle;
3. a panel;
4. a slider; 401. a slide rail; 402. a positioning groove; 403. a slide block; 404. a slide rail groove; 405. a positioning block;
5. a protective belt;
6. an end cap; 601. an avoidance groove;
7. a first bearing; 701. a first bearing outer race; 702. a first bearing inner race; 703. a first bearing ball; 704. a first upper clamping groove; 705. a first lower clamping groove; 706. an inclined plane;
8. a second bearing; 801. a second bearing inner race; 802. a second bearing outer ring; 803. a second bearing ball; 804. a second upper clamping groove; 805. a second lower clamping groove;
9. a screw rod; 901. a screw shaft; 902. a left stepped shaft; 903. a right stepped shaft; 904. a motor connecting shaft; 905. a clamp spring groove;
10. clamping springs;
11. a threaded ring.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
As shown in fig. 1 and 2, the high-precision linear sliding table structure is a structural schematic diagram of the high-precision linear sliding table structure, is generally applied to an automatic conveying line, is used for linear conveying, can effectively reduce vibration generated during linear conveying and prolongs the service life while improving the linear conveying precision. The structure comprises a shell 1, a sliding frame 2, a panel 3, a sliding piece 4, a protective belt 5, an end cover 6, a first bearing 7, a second bearing 8, a screw rod 9, a clamping spring 10 and a threaded ring 11.
As shown in fig. 3 and 4, the housing 1 is schematically configured, and the housing 1 includes a housing 101, a carriage groove 102, a slider groove 103, a stopper groove 104, a pin plate groove 105, an upper belt groove 106, an upper top block 107, a lower belt groove 108, a lower top block 109, a slide rail groove 1010, and a guide groove 1011. The housing 101 is made of stainless steel material, the carriage groove 102 horizontally penetrates the housing 101, and the carriage groove 102 is used for installing the carriage 2 later and limiting the sliding of the carriage 2. The slider groove 103 penetrates the housing 101 horizontally and is located on two sides of the carriage groove 102, and the slider groove 103 is arranged in parallel with the carriage groove 102 and is used for installing the slider 4.
The limiting groove 104 is formed in a partition plate between the carriage groove 102 and the slider groove 103, and is communicated with the carriage groove 102 and the slider groove 103, and the limiting groove 104 is used for limiting movement of the limiting plate 204. The pin plate groove 105 is formed in the top of the shell 101 and is communicated with the slider groove 103, and the pin plate groove 105 is used for limiting the pin plate 206 so as to prevent the pin plate 206 from shaking left and right during sliding.
The upper belt groove 106 is in a shape of a 'section', and is arranged on two sides of the pin plate groove 105 relatively, and the upper belt groove 106 is used for installing the protection belt 5 subsequently. The lower belt groove 108 penetrates the shell 101 horizontally, is positioned below the slider groove 103, two groups of lower belt grooves 108 and upper belt grooves 106 are respectively positioned on two sides of the carriage groove 102, and two groups of protective belts 5 are respectively wound in the upper belt groove 106 and the lower belt groove 108.
As shown in fig. 4, the upper top block 107 is integrally connected to one side of the bottom of the upper belt groove 106, which is close to the pin plate groove 105, and after the protective belt 5 is wound in the upper belt groove 106 and the lower belt groove 108, the inner side of the protective belt 5 contacts with the upper top block 107, so that the contact area of the protective belt 5 is reduced, and the transitional abrasion of the protective belt 5 caused by large-area contact is avoided.
The lower top block 109 is integrally connected to the top of the lower belt groove 108 and is located at a middle position of the lower belt groove 108. Through setting up down kicking block 109, after the protection band 5 winds to establish in upper leather belt groove 106 and the lower belt groove 108, the inboard of protection band 5 contacts with lower kicking block 109, reduces the area of contact of protection band 5, avoids large tracts of land contact to lead to protection band 5 transitional wear.
A slide rail slot 1010 is provided at the bottom of the slide rail slot 103 for subsequent installation of the slide rail 401. The guide groove 1011 horizontally penetrates the shell 101 and is communicated with the carriage groove 102, the guide groove 1011 is used for limiting the guide bar 203 at the top of the carriage 2, and under the action of the carriage groove 102, the guide groove 1011 and the pin plate groove 105, the carriage 2 is ensured not to deviate during sliding, and the translation precision is improved.
As shown in fig. 5-7, the sliding frame 2 is schematically shown in the structure of the sliding frame 2, and the sliding frame 2 is slidably connected in the housing 101 and fixed to the panel 3, and drives the panel 3 to slide synchronously when the sliding frame 2 slides. The carriage 2 includes a carriage body 201, a screw groove 202, a guide bar 203, a stopper plate 204, a convex bar 205, a pin plate 206, an embossing 207, a slider groove 208, an oil injection groove 209, and a slider shutter 2010. The shape of the carriage body 201 matches with that of the carriage slot 102, so that when the carriage body 201 moves in the carriage slot 102, the inner side wall of the carriage slot 102 can limit and guide the carriage body 201, so that the carriage body 201 is prevented from shaking left and right.
The screw rod groove 202 horizontally penetrates through the carriage body 201 and is matched with the screw rod shaft 901, and under the matching action of the screw rod shaft 901 and the screw rod groove 202, the carriage body 201 is driven to move in the carriage groove 102. The guide strip 203 is integrally connected to the top of the carriage body 201 and is matched with the guide groove 1011, when the carriage body 201 moves, the guide strip 203 moves synchronously in the guide groove 1011, and under the action of the carriage groove 102 and the guide groove 1011, the carriage body 201 is prevented from shaking when moving, so that the accuracy of sliding is improved.
The limiting plates 204 are integrally connected to two sides of the carriage body 201 and pass through the limiting grooves 104, and when the carriage body 201 moves, the limiting plates 204 are driven to slide in the limiting grooves 104, and the limiting grooves 104 limit the sliding limiting plates 204. The limiting plate 204 is placed in the slider groove 103 and fixed with the slider 4 in the slider groove 103, and the limiting plate 204 is supported in an auxiliary manner under the action of the slider 4. The protruding strip 205 is integrally connected at the top of the limiting plate 204, the pin plate 206 is integrally connected at the top of the protruding strip 205, the pin plate 209 is matched with the pin plate groove 105 of the shell 1, the pin plate groove 105 limits the movement of the pin plate 206, and the movement precision of the pin plate 206 is improved. Panel 3 is fixed on top of pin plate 206, panel 3 being used for subsequent mounting of jig trays to be linearly transported.
The embossing 207 is disposed on top of the protruding strip 205 and located on both sides of the pin plate 206, and the embossing 207 is used to fix the protection band 5. The section of the embossing 5 is in an isosceles trapezoid shape so as to enlarge the contact area with the protective belt 5, ensure that the embossing 5 and the protective belt are fixed more firmly and avoid loosening of the protective belt 5. The slider groove 208 is formed at the bottom of the limiting plate 204, and is used for fixing the slider 403. The oil injection groove 209 is formed in the guide bar 203 and is communicated with the screw rod groove 202, and during actual assembly, an operator can drop lubricating oil in the screw rod groove 202 through the oil injection groove 209, so that transmission friction of the screw rod shaft 901 is reduced, and transmission accuracy is improved. The slide block baffle 2010 is integrally connected to the outer side of the limiting plate 204 and is used for positioning the slide block 403, so that the slide block 403 is convenient to fix.
The sliding piece 4 is fixed in the sliding piece groove 103 and connected with the limiting plate 204, so as to improve the stability of the limiting plate 204 during moving. The slider 4 includes a slide rail 401, a positioning groove 402, a slider 403, a slide rail groove 404, and a positioning block 405. As shown in fig. 8, the sliding rail 401 is schematically shown in the structure of the sliding rail 401, and the sliding rail 401 is fixed in the sliding rail groove 1010 of the housing 101 by means of screw fastening. The positioning grooves 402 are formed in two sides of the sliding rail 401, and when the sliding block 403 moves, the sliding block 403 is limited and guided, so that the sliding block 403 is prevented from shaking, and the movement accuracy of the limiting plate 204 is affected.
As shown in fig. 9, a schematic structure of a sliding block 403 is shown, a sliding rail groove 404 matched with a sliding rail 401 is formed at the bottom of the sliding block 403, a positioning block 405 matched with a positioning groove 4002 is formed at the inner side of the sliding rail groove 404, and the sliding block 403 is prevented from shaking due to the matching of the positioning block 405 and the positioning groove 402. The positioning groove 402 is in a concave semicircular shape, and the positioning block 405 is in a convex semicircular shape, so that when the positioning groove and the positioning block are matched, the contact surface is arc-shaped, and the arc-shaped contact surface can increase the contact area and improve the stability. The top of the sliding block 403 is fixed in the sliding block groove 208, and when the screw shaft 901 drives the sliding frame 2 to move, the limiting plate 204 drives the sliding block 403 to synchronously move along the sliding rail 401, so that the stability of the sliding frame 2 during sliding is improved.
The guard belt 5 is wound around the upper belt groove 106 and the lower belt groove 108, as shown in fig. 10, which is a schematic structural diagram of the guard belt 5, and the guard belt 5 has two ends, which are respectively fixed on the embossing 207 on two sides of the pin plate 206 by means of screw fastening, so that the sliding frame 2 drives the guard belt 5 to rotate synchronously when moving. When the sliding frame body 201 moves, the sliding block 403 is driven to move synchronously along the sliding rail 401, and when the sliding frame body moves to a certain position to stop, the sliding block 403 and the sliding frame body 201 may continuously move forward for a small section of displacement due to inertia, after the protective belts 5 are additionally arranged at the two ends of the pin plate 206, the inertia of the sliding block 403 and the sliding frame body 201 can be counteracted by virtue of friction force of the protective belts 5 and the rollers, so that the sliding frame body and the sliding frame body stop in situ, and the conveying precision is effectively improved.
As shown in fig. 4, after the protection belt 5 is wound around the upper belt groove 106 and the lower belt groove 108, the inner sides of the protection belt 5 are abutted against the upper top block 107 and the lower top block 109, and the friction area with the protection belt 5 is reduced by providing the upper top block 107 and the lower top block 109, so that transitional wear of the protection belt 5 is avoided. When the protective belt 5 rotates in the upper belt groove 106 and the lower belt groove 108, the pin plate groove 105 is completely sealed, so that external impurities are effectively isolated, and after long-time use, external dust and the like cannot enter the carriage groove 102, and the problem of precision reduction caused by dust entering when the carriage body 201 moves cannot occur.
However, in actual use, the protection belt 5 still has abrasion, and by arranging the upper top block 107 and the lower top block 109, the transitional abrasion of the protection belt 5 can be avoided as much as possible, but the abrasion of the contact part between the protection belt 5 and the upper top block 107 and the lower top block 109 still exists, at this time, the upper top block 107 is positioned at two sides of the protection belt 5, the lower top block 109 is positioned at the middle part of the protection belt 5, so that the abrasion degree of the inner side of the protection belt 5 is the same (namely, the upper top block 107 wears two sides of the protection belt 5, and the lower top block 109 wears the middle part of the protection belt 5), even if the protection belt 5 is slightly abraded in the case of long-time working, but the abrasion degree of the whole surface is the same, and the condition that the protection belt 5 shakes due to the different thickness can not occur can be ensured.
The end covers 6 are respectively fixed on two sides of the shell 101, the inner side of the shell 101 is provided with an avoidance groove 601, a rotating shaft is arranged in the avoidance groove 601 through a bearing, rollers are fixed on the rotating shaft, two ends of the protection belt 5 are respectively wound on the rollers, and when the pin plate 206 moves, the protection belt 5 is driven to synchronously rotate on the rollers.
The screw rod 9 penetrates through the end cover 6 and is matched with the screw rod groove 202 of the sliding frame 2, as shown in fig. 14, which is a schematic structural view of the screw rod 9, and the screw rod 9 comprises a screw rod shaft 901, a left stepped shaft 902, a right stepped shaft 903, a motor connecting shaft 904 and a clamp spring groove 905. The screw shaft 901 is matched with the screw groove 202 of the sliding frame 2, and when the screw shaft 901 rotates, the sliding frame body 201 is driven to move (the matching of the screw shaft 901 and the screw groove 202 is the common matching of a ball screw in the prior art).
The left stepped shaft 902 is integrally connected to the left end of the screw shaft 901, the diameter of the left stepped shaft 902 is smaller than that of the screw shaft 901, and a group of end faces are arranged at the connection part of the left stepped shaft 902 and the screw shaft 901 and used for clamping the first bearing 7. The right stepped shaft 903 is integrally connected to the right end of the screw shaft 901, and the diameter of the right stepped shaft 903 is smaller than that of the screw shaft 901, and a set of end faces are arranged at the connection part of the right stepped shaft 903 and the screw shaft 901 and used for clamping the second bearing 8.
The motor connecting shaft 904 is integrally connected to one end of the left stepped shaft 902 far away from the screw shaft 901, and the motor connecting shaft 904 is used for connecting an external motor, and the screw rod 9 is driven to rotate by the external motor. As shown in fig. 15, a snap spring groove 905 is formed in the right stepped shaft 903, and a snap spring 10 is engaged in the snap spring groove 905 to prevent axial movement of the second bearing 8 fitted over the right stepped shaft 903.
The first bearings 7 are respectively sleeved on the left stepped shaft 902 and abut against the connecting surface of the screw shaft 901 and the left stepped shaft 902, so as to assist the rotation of the screw shaft 901, and as shown in fig. 11 and 12, the first bearings 7 are structurally schematic and sectional views. The first bearing 7 includes a first bearing outer race 701, a first bearing inner race 702, first bearing balls 703, a first upper catching groove 704, a first lower catching groove 705, and a slope 706. The first bearing outer ring 701 and the first bearing inner ring 702 are mutually sleeved, the first upper clamping groove 704 is formed in the inner side of the first bearing outer ring 701, and the first lower clamping groove 705 is formed in the outer side of the first bearing inner ring 702. The first bearing ball 703 array is mounted between the first upper locking groove 704 and the first lower locking groove 705, and the first bearing outer ring 701 can rotate outside the first bearing inner ring 702 by the first bearing ball 703.
The inclined plane 706 is formed on the inner side of the first bearing outer ring 701 and is connected to the first upper clamping groove 704. As shown in fig. 16, the inclined surface 706 is away from the screw shaft 901 and is disposed obliquely upward. Through setting up inclined plane 706, the first bearing ball 703 of easy to assemble when assembling, on the other hand, when motor drive lead screw 9 rotates, left step shaft 902, lead screw axle 901 and right step shaft 903 synchronous rotation, but because left step shaft 902 is close to the motor shaft of outside motor, consequently left step shaft 902's vibration amplitude is bigger, left step shaft 902 drives first bearing inner circle 702 when first bearing outer lane 701 rotates, can apply to the synchronous vibration of first bearing ball 703, consequently through the design of inclined plane 706, reduce the area of contact of first bearing ball 703 and first bearing outer lane 701, avoid causing the transition wearing and tearing of first bearing ball 703.
As shown in fig. 13, the second bearing 8 is a sectional view, and the second bearing 8 is fitted over the right stepped shaft 903 and abuts against the contact surface between the screw shaft 901 and the right stepped shaft 903. The second bearing 8 includes a second bearing inner ring 801, a second bearing outer ring 802, a second bearing ball 803, a second upper catching groove 804, and a second lower catching groove 805. The second bearing outer ring 802 and the second bearing inner ring 801 are sleeved with each other, a second upper clamping groove 804 is formed in the inner side of the second bearing outer ring 802, and a second lower clamping groove 805 is formed in the outer side of the second bearing inner ring 801. The second bearing ball 803 is arranged between the second upper and lower clamping grooves 804, 805, and the second bearing outer race 802 is rotatable outside the second bearing inner race 801 by the second bearing ball 803.
The snap spring 10 is clamped in the snap spring groove 905 of the right stepped shaft 903 and is positioned at the outer side of the second bearing 8, so that the second bearing 8 is prevented from being axially deflected when the screw shaft 901 rotates.
The threaded ring 11 is screwed on the left stepped shaft 902, and is used for pushing the first bearing 7 to the connecting surface of the screw rod shaft 901 and the left stepped shaft 902, so as to prevent the first bearing 7 from axial deflection (an external thread is arranged on one side of the left stepped shaft 902, which is close to the motor connecting shaft 904, and is matched with an internal thread of the threaded ring 11).
The principle of the high-precision linear sliding table structure is as follows:
the external motor is started, and under the action of the first bearing 7 and the second bearing 8, the motor drives the screw rod 9 to rotate, and the sliding frame 2 and the panel 3 are driven to move by virtue of the cooperation of the screw rod shaft 901 and the screw rod groove 202. When the sliding frame 2 moves, the sliding frame 2 is ensured not to shake and deviate when sliding by virtue of the matching of the sliding frame body 201 and the sliding frame groove 102, the matching of the limiting plate 204 and the limiting groove 104, the matching of the guide strip 203 and the guide groove 1011 and the matching of the pin plate 206 and the pin plate groove 105, so that the linear conveying precision is improved;
under the action of the sliding rail 401 and the sliding block 403, the device is used for supporting the sliding frame 2 in an auxiliary manner, reduces vibration friction when the sliding frame 2 slides, synchronously moves with the sliding frame 2 under the action of the protective belt 5, and improves the accuracy when in linear conveying;
the arrangement of the upper jacking block 107 and the lower jacking block 109 avoids transitional abrasion of the inner side of the protection belt 5, and simultaneously can ensure that the thickness of the protection belt 5 is kept uniform and the shaking caused by different abrasion degrees of the inner side of the protection belt 5 is avoided;
the inclined plane 706 reduces the contact area between the first bearing balls 703 and the first bearing outer ring 701, so as to avoid the transitional wear of the first bearing balls 703;
the threaded ring 11 and the snap spring 10 limit the axial deflection of the first bearing 7 and the second bearing 8.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (9)

1. The utility model provides a high accuracy straight line slip table structure which characterized in that, it includes:
the shell (1), the shell (1) comprises a shell (101), a sliding frame groove (102) horizontally penetrating through the shell (101), sliding piece grooves (103) penetrating through the shell (101) and positioned on two sides of the sliding frame groove (102), limit grooves (104) communicated with the sliding frame groove (102) and the sliding piece grooves (103) and pin plate grooves (105) formed in the tops of the sliding piece grooves (103);
the sliding frame (2) comprises a sliding frame body (201) arranged in a sliding frame groove (102), a screw rod groove (202) penetrating through the sliding frame body (201), limiting plates (204) integrally connected to two sides of the sliding frame body (201) and matched with the limiting grooves (104), raised strips (205) integrally connected to the tops of the limiting plates (204) and pin plates (206) integrally connected to the tops of the raised strips (205) and matched with the pin plate grooves (105);
the end covers (6) are fixed at two ends of the shell (101);
the screw rod (9), the screw rod (9) comprises a screw rod shaft (901) penetrating through the end cover (6) and matched with the screw rod groove (202);
the first bearing (7) is sleeved at one end of the screw rod shaft (901);
the second bearing (8) is sleeved at the other end of the screw rod shaft (901);
a panel (3), the panel (3) being fixed on top of the pin plate (206).
2. The high-precision linear sliding table structure according to claim 1, wherein: the shell (1) further comprises an upper belt groove (106) formed in two sides of the pin plate groove (105), a lower belt groove (108) penetrating through the shell (101) and located below the slider groove (103), a sliding rail groove (1010) formed in the bottom of the slider groove (103) and a guide groove (1011) formed in the top of the sliding rail groove (102), wherein the upper belt groove (106) is matched with the lower belt groove (108).
3. The high-precision linear sliding table structure according to claim 2, wherein: the shell (1) further comprises an upper jacking block (107) integrally connected to the bottom of the upper Pi Daicao (106) and a lower jacking block (109) integrally connected to the top of the lower belt groove (108).
4. A high precision linear slide structure according to claim 3, characterized in that: the sliding frame (2) further comprises a guide strip (203) which is integrally connected to the top of the sliding frame body (201) and matched with the guide groove (1011), an oil injection groove (209) which is formed in the guide strip (203) and communicated with the screw rod groove (202), a sliding block groove (208) which is formed in the bottom of the limiting plate (204), a sliding block baffle (2010) which is integrally connected to the outer side of the limiting plate (204) and an embossing (207) which is formed in the top of the raised strip (205).
5. The high-precision linear sliding table structure according to claim 4, wherein: the novel anti-collision device is characterized by further comprising a sliding part (4) arranged in the sliding part groove (103), an avoidance groove (601) formed in one opposite side of the end cover (6) and a protection belt (5) wound in the avoidance groove (601), wherein two ends of the protection belt (5) are fixed on the embossing (207), and the inner sides of the protection belt (5) respectively abut against the top of the upper jacking block (107) and the bottom of the lower jacking block (109).
6. The high-precision linear sliding table structure according to claim 5, wherein: the sliding piece (4) comprises a sliding rail (401) fixed in a sliding rail groove (1010), a positioning groove (402) formed in the outer side of the sliding rail (401), a sliding block (403) slidably mounted on the sliding rail (401), a sliding rail groove (404) formed in the bottom of the sliding block (403) and a positioning block (405) integrally connected in the sliding rail groove (404) and matched with the positioning groove (402), wherein the sliding block (403) is fixed at the bottom of the sliding block groove (208).
7. The high-precision linear sliding table structure according to claim 1, wherein: the screw rod (9) further comprises a left stepped shaft (902) integrally connected with one end of the screw rod shaft (901), a motor connecting shaft (904) integrally connected with one end of the left stepped shaft (902), a right stepped shaft (903) integrally connected with the other end of the screw rod shaft (901) and a clamp spring groove (905) formed in the right stepped shaft (903), the first bearing (7) is sleeved on the left stepped shaft (902), and the second bearing (8) is sleeved on the right stepped shaft (903).
8. The high-precision linear sliding table structure according to claim 1, wherein: the first bearing (7) comprises a first bearing inner ring (702) and a first bearing outer ring (701) which are sleeved with each other, a first lower clamping groove (705) and a first upper clamping groove (704) which are formed in opposite sides of the first bearing inner ring (702) and the first bearing outer ring (701), first bearing balls (703) which are circumferentially arranged in the first lower clamping groove (705) and the first upper clamping groove (704), and an inclined plane (706) which is formed in one side of the first upper clamping groove (704).
9. The high-precision linear sliding table structure according to claim 1, wherein: the second bearing (8) comprises a second bearing inner ring (801) and a second bearing outer ring (802) which are sleeved with each other, a second lower clamping groove (805) and a second upper clamping groove (804) which are formed on one side of the second bearing inner ring (801) and the second bearing outer ring (802) opposite to each other, and a second bearing ball (803) which is circumferentially arranged in the second lower clamping groove (805) and the second upper clamping groove (804).
CN202310314410.2A 2023-03-28 2023-03-28 High-precision linear sliding table structure Withdrawn CN116292615A (en)

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Application Number Priority Date Filing Date Title
CN202310314410.2A CN116292615A (en) 2023-03-28 2023-03-28 High-precision linear sliding table structure

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Application Number Priority Date Filing Date Title
CN202310314410.2A CN116292615A (en) 2023-03-28 2023-03-28 High-precision linear sliding table structure

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CN202310314410.2A Withdrawn CN116292615A (en) 2023-03-28 2023-03-28 High-precision linear sliding table structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117780878A (en) * 2024-01-19 2024-03-29 广东霭瑞盈智能设备有限公司 Intelligent foundation power sliding table servo system structure and application method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117780878A (en) * 2024-01-19 2024-03-29 广东霭瑞盈智能设备有限公司 Intelligent foundation power sliding table servo system structure and application method thereof

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