CN115217926A

CN115217926A - Linear moving ball screw rod type sliding table structure

Info

Publication number: CN115217926A
Application number: CN202210976139.4A
Authority: CN
Inventors: 程凯伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-10-21

Abstract

The invention relates to the technical field of sliding table structures and discloses a linear moving ball screw rod type sliding table structure which comprises a screw rod, a supporting rod, a driving motor and a fixing frame, wherein the screw rod is movably connected with the fixing frame, and one end of the screw rod is fixedly connected with an output shaft of the driving motor. Through the setting of spacing piston board and backing roll, make when work piece clamping to the slip table on, its gravity directly transmits to on the spacing piston board, cooperation through spacing piston board and backing roll, make the backing roll contact the screw rod directly over, when the screw rod is rotatory, the backing roll rolls along the screw rod on the surface, support the clearance between spacing piston board and the screw rod, utilize the backing roll to ensure that the ball can pass through the thread groove between spacing piston board and the screw rod smoothly, avoid the gravity of work piece to cause the extrusion to the ball, reduce the extrusion force that the ball received between spacing piston board and the screw rod among the transmission process, improve the smooth effect of transmission, reduce the wear rate of ball.

Description

Linear moving ball screw rod type sliding table structure

Technical Field

The invention relates to the technical field of sliding table structures, in particular to a linear moving ball screw type sliding table structure.

Background

At present, in the motion processes such as carry out various cutting, drilling to the work piece, need utilize slip table installation work piece to utilize the slip table to drive the work piece and carry out reciprocating motion, and the slip table cooperatees through shaft coupling and screw rod, utilize driving motor to drive the screw rod afterwards and rotate, and then drive the slip table through the shaft coupling and carry out linear motion, nevertheless the ball screw formula slip table that uses at present has some not enoughly in the use, as follows:

at present, when a workpiece is loaded on the sliding table, the gravity of the workpiece is applied to the sliding table, the sliding table is connected with the screw rod through the coupler, when the coupler is connected with the screw rod, the gravity of the sliding table and the workpiece presses balls in the coupler to the screw rod, the tops of inner cavities of the coupler and the screw rod clamp the balls, the balls are difficult to move inside the coupler, the screw rod is further rotated, the contact force between the balls and the screw rod is increased, the balls are forced to move by the screw rod, the abrasion between the coupler sleeve and the screw rod is increased, the transmission function between the coupler and the screw rod is disordered along with the aggravation of the abrasion, the disordered sliding table rotates for the same number of turns on the screw rod, the transmission distance of the sliding table is different, the positioning is inaccurate, and the processing quality is influenced.

Disclosure of Invention

The invention provides a linear moving ball screw type sliding table structure which has the advantages of good transmission effect and long service life of the sliding table and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a linear ball screw formula slip table structure that removes, includes screw rod, bracing piece, driving motor and mount, screw rod and mount swing joint, the one end of screw rod and driving motor's output shaft fixed connection, the bracing piece has two and symmetric distribution in the both sides of screw rod, two the both ends of bracing piece respectively with mount fixed connection, the yoke cover has been cup jointed in the activity on the screw rod, spacing piston plate has been cup jointed in the inside of yoke cover and the top activity that is located the screw rod, the hole groove has evenly been seted up to the inside of spacing piston plate, there is the backing roll inside through axle movable mounting of hole groove, the even fixedly connected with spring I of upper surface of spacing piston plate, the top fixedly connected with transmission piston plate of spring I, the even fixed mounting in upper surface of transmission piston plate has the support column, the top of support column just is located the top fixedly connected with slip table of yoke cover, the thread groove corresponding with the screw rod is seted up to the inner wall of yoke cover and the bottom of spacing piston plate, the left side fixedly connected with conversion arc pipe, the both ends of conversion arc pipe communicate with the thread groove of yoke right side inner chamber bottom and the thread groove at left side inner chamber top respectively.

Preferably, the backing roll has-one, adjacent two the interval of backing roll is the same with the interval of thread groove, swing joint in the middle of just being located the clearance of thread groove directly over backing roll and the screw rod, the rotatory tangential direction of backing roll is parallel with the arc wall tangential direction that is located the top.

Preferably, both sides symmetry fixedly connected with connecting cover around the shaft coupling sleeve, the bottom fixedly connected with fixed sleeve of connecting cover, the fixed sleeve cup joints with the bracing piece activity, the top activity of connecting cover has cup jointed spacing connecting rod, the top and the slip table fixed connection of spacing connecting rod, the inside movable mounting of connecting cover has spring II, the both ends of spring II respectively with the bottom surface fixed connection of connecting cover and spacing connecting rod.

Preferably, the elastic force formed by the stretching length X of the spring I is greater than the sum of the gravity of the limiting piston plate and the gravity of the supporting roller, and the elastic force formed by the compressing length Y of the spring II is greater than the sum of the gravity of the limiting connecting rod, the sliding table, the limiting piston plate, the spring I, the transmission piston plate and the supporting column.

Preferably, the transmission piston board cup joints with the inner chamber activity of shaft coupling sleeve, spacing piston board cup joints with the inner chamber activity of shaft coupling sleeve, the right side of shaft coupling sleeve just is located fixed intercommunication between spacing piston board and the transmission piston board and has into oil pipe, the right side of shaft coupling sleeve just is located fixed intercommunication between spacing piston board and the transmission piston board and has annotates oil pipe, annotate oil pipe and the fixed intercommunication of middle part inner chamber of conversion arc pipe.

Preferably, the supporting rod and the oil filling pipe are both fixedly provided with one-way valves inside.

Preferably, the electromagnetic device is fixedly mounted inside the connecting sleeve group and below the limiting connecting rod, and the bottom surface of the limiting connecting rod is parallel to the upper surface of the electromagnetic device.

The invention has the following beneficial effects:

1. through the setting of spacing piston board and backing roll, make when work piece clamping to the slip table on, its gravity directly transmits to on the spacing piston board, through the cooperation of spacing piston board and backing roll, make the backing roll contact directly over the screw rod, when the screw rod is rotatory, the backing roll rolls along the screw rod on the surface, support the clearance between spacing piston board and the screw rod, utilize the backing roll to ensure that the ball can pass through the thread groove between spacing piston board and the screw rod smoothly, avoid the gravity of work piece to cause the extrusion to the ball, reduce the transmission in-process ball and receive the extrusion force that comes from between spacing piston board and the screw rod, improve the smooth effect of transmission, reduce the wear rate of ball, increase the life of equipment.

2. Through the setting of spacing piston board and transmission piston board, when making there be the work piece to load on the slip table, because the increase of gravity, lubricating oil to between spacing piston board and the transmission piston board pressurizes, make it transmit in to the conversion arc pipe through the notes oil pipe, when the ball changes current from the conversion arc pipe, lubricate by oneself, reduce artifical through lubricating oil injector repeated interpolation lubricating oil in to the shaft coupling, can make the slip table in the course of the work in time add lubricating oil by oneself simultaneously, avoid the ball too dry, lead to the wearing and tearing aggravation of screw rod and ball, ensure the operational effect of slip table.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic side view, semi-section, of the present invention;

FIG. 3 is a schematic front view of the structure of the present invention;

FIG. 4 isbase:Sub>A schematic view taken from A-A in FIG. 3 according to the present invention;

FIG. 5 is a schematic front view in half section of the structure of the present invention;

FIG. 6 is a schematic view of the installation of the structural backing roll and the screw of the present invention;

fig. 7 is a schematic view of the installation of the structural limit connecting rod and the electromagnetic device of the present invention.

In the figure: 1. a coupling sleeve; 2. a screw; 3. a connecting sleeve set; 4. a support bar; 5. a limit connecting rod; 6. A sliding table; 7. a limiting piston plate; 8. a spring I; 9. a drive piston plate; 10. a support pillar; 11. converting the arc-shaped pipe; 12. a support roller; 13. an oil filler pipe; 14. an oil inlet pipe.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, a linear moving ball screw sliding table structure includes a screw rod 2, support rods 4, a driving motor and a fixing frame, the screw rod 2 is movably connected with the fixing frame, one end of the screw rod 2 is fixedly connected with an output shaft of the driving motor, the support rods 4 are provided with two and symmetrically distributed at two sides of the screw rod 2, two ends of the two support rods 4 are respectively fixedly connected with the fixing frame, a coupling sleeve 1 is movably sleeved on the screw rod 2, a limit piston plate 7 is movably sleeved inside the coupling sleeve 1 and above the screw rod 2, hole grooves are uniformly formed inside the limit piston plate 7, support rollers 12 are movably installed inside the hole grooves through shafts, springs i 8 are uniformly and fixedly connected with the upper surface of the limit piston plate 7, the top of the springs i 8 is fixedly connected with a transmission piston plate 9, support columns 10 are uniformly and fixedly installed on the upper surface of the transmission piston plate 9, the top end of the supporting column 10 is fixedly connected with a sliding table 6 above the coupling sleeve 1, the inner wall of the coupling sleeve 1 and the bottom of the limit piston plate 7 are provided with thread grooves corresponding to the screw rod 2, the left side of the coupling sleeve 1 is fixedly connected with a conversion arc-shaped tube 11, two ends of the conversion arc-shaped tube 11 are respectively communicated with the thread groove at the bottom of the right side inner cavity of the coupling sleeve 1 and the thread groove at the top of the left side inner cavity, when a workpiece is clamped on the sliding table 6, the gravity of the workpiece is transmitted to the limit piston plate 7 through the supporting column 10, the transmission piston plate 9 and the spring I8, the limit piston plate 7 is pressed down, the supporting roll 12 is contacted with the right upper part of the screw rod 2 to support the gap between the limit piston plate 7 and the screw rod 2, the supporting roll 12 is utilized to ensure that the ball can smoothly pass through the thread grooves between the limit piston plate 7 and the screw rod 2, thereby avoiding the extrusion of the ball caused by the gravity of the workpiece, the extrusion force of the ball from the position limiting piston plate 7 and the screw rod 2 in the transmission process is reduced, the smooth effect of transmission is improved, the wear rate of the ball is reduced, and the service life of equipment is prolonged; 3-6 supporting rollers 12 are provided, the distance between every two adjacent supporting rollers 12 is the same as the distance between every two adjacent supporting rollers 12, the supporting rollers 12 are movably connected with the middle of a gap right above the screw 2 and positioned in the thread groove, the rotation tangential direction of the supporting rollers 12 is parallel to the tangential direction of the arc-shaped groove positioned at the top, and in the process, the supporting rollers 12 roll along the spiral surface on the screw 2 along with the rotation of the screw 2, so that effective supporting force can be kept, the friction resistance between the supporting rollers and the screw 2 is reduced, the resistance to the rotation of the screw 2 is reduced, and the high efficiency of the transmission of the sliding table is ensured;

example two

Referring to fig. 4-7, the front side and the rear side of the coupling sleeve 1 are symmetrically and fixedly connected with a connecting sleeve 3, the bottom of the connecting sleeve 3 is fixedly connected with a fixed sleeve, the fixed sleeve is movably sleeved with a support rod 4, the top of the connecting sleeve 3 is movably sleeved with a limit connecting rod 5, the top of the limit connecting rod 5 is fixedly connected with a sliding table 6, a spring ii is movably installed inside the connecting sleeve 3, two ends of the spring ii are respectively and fixedly connected with the bottom surfaces of the connecting sleeve 3 and the limit connecting rod 5, the coupling sleeve 1 is supported and limited by the connecting sleeve 3 and the support rod 4, the coupling sleeve 1 is prevented from rotating along with the screw rod 2 when the screw rod 2 rotates, the coupling sleeve 1 is further ensured to be capable of performing linear motion on the screw rod 2, meanwhile, the sliding table 6 and the coupling sleeve 1 can be independent in the vertical direction, the gravity of a workpiece is directly applied to the screw rod 2, and the coupling sleeve 1 is only required to perform horizontal motion, the sliding table 6 is driven to perform horizontal motion, so that the friction force between the coupling sleeve 1 and the screw rod 2 is greatly reduced; the transmission piston plate 9 is movably sleeved with the inner cavity of the coupling sleeve 1, the limiting piston plate 7 is movably sleeved with the inner cavity of the coupling sleeve 1, the right side of the coupling sleeve 1 is fixedly communicated with an oil inlet pipe 14 between the limiting piston plate 7 and the transmission piston plate 9, the right side of the coupling sleeve 1 is fixedly communicated with an oil inlet pipe 13 between the limiting piston plate 7 and the transmission piston plate 9, the oil inlet pipe 13 is fixedly communicated with the middle inner cavity of the conversion arc-shaped pipe 11, lubricating oil is injected into the inside of the coupling sleeve 1 and between the limiting piston plate 7 and the transmission piston plate 9 through the oil inlet pipe 14, when a workpiece is loaded on the sliding table 6, due to the increase of gravity, the lubricating oil between the limiting piston plate 7 and the transmission piston plate 9 is pressurized and is transmitted into the conversion arc-shaped pipe 11 through the oil inlet pipe 13, when the ball is converted from the conversion arc-shaped pipe 11, the self-lubrication is carried out, the repeated addition of the lubricating oil into the coupling through the lubricating oil by a manual injector is reduced, meanwhile, the lubricating oil can be added in time in the working process of the sliding table, the ball is prevented from being excessively dried, the abrasion of the screw and the ball, and the operation effect of the sliding table is enhanced; the elastic force formed by the stretching length X of the spring I8 is larger than the sum of the gravity of the limiting piston plate 7 and the gravity of the supporting roller 12, the elastic force formed by the compressing length Y of the spring II is larger than the sum of the gravity of the limiting connecting rod 5, the sliding table 6, the limiting piston plate 7, the spring I8, the transmission piston plate 9 and the supporting column 10, the limiting connecting rod 5 is supported through the spring II, then the transmission piston plate 9 is positioned at the top of the inner cavity of the coupling sleeve 1, the limiting piston plate 7 and the screw rod 2 are kept in a relatively suspended state through the stretching of the spring I8, and when no workpiece is clamped on the sliding table 6, the contact friction force between the limiting piston plate 7 and the screw rod 2 is reduced to the greatest extent, so that the return stroke efficiency is improved; one-way valves are fixedly mounted in the supporting rod 4 and the oil injection pipe 13, when a workpiece is taken from and placed on the sliding table 6, due to the weight difference, the distance between the limiting piston plate 7 and the transmission piston plate 9 is changed, the processes of pumping and extruding lubricating oil are completed, the self-sufficient effect is achieved, and manual excessive intervention is reduced;

referring to fig. 7, an electromagnetic device is fixedly mounted inside the connecting sleeve set 3 and below the limit connecting rod 5, the bottom surface of the limit connecting rod 5 is parallel to the upper surface of the electromagnetic device, when a workpiece is conveyed to a machining area, the electromagnetic device is used for adsorbing the limit connecting rod 5, the workpiece is prevented from being cut, when the weight is reduced, the workpiece is displaced, so that the machining deviation of the workpiece is avoided, and finally the upper surface of the electromagnetic device can be in contact with the bottom surface of the limit connecting rod 5 no matter how heavy the workpiece is.

According to the working principle, when a workpiece is clamped on the sliding table 6, the gravity of the workpiece is transmitted to the limiting piston plate 7 through the supporting column 10, the transmission piston plate 9 and the spring I8, the limiting piston plate 7 is pressed down, the supporting roll 12 is in contact with the position right above the screw rod 2, a gap between the limiting piston plate 7 and the screw rod 2 is supported, then the driving motor drives the screw rod 2 to rotate, and the limiting piston plate 7 rolls along the surface of the screw rod 2 located between the thread grooves, so that effective supporting force can be kept, the friction resistance between the limiting piston plate and the screw rod 2 is reduced, and the resistance to the rotation of the screw rod 2 is reduced; meanwhile, before a workpiece is loaded, firstly, lubricating oil is injected into the inside of the coupling sleeve 1 and between the limiting piston plate 7 and the transmission piston plate 9 through the oil inlet pipe 14, when the workpiece is loaded on the sliding table 6, the lubricating oil between the limiting piston plate 7 and the transmission piston plate 9 is pressurized due to the increase of gravity, so that the lubricating oil is transmitted into the conversion arc-shaped pipe 11 through the oil inlet pipe 13, when balls pass through the conversion arc-shaped pipe 11 in a conversion mode, the lubricating oil is automatically lubricated, when the workpiece is taken down from the sliding table 6, under the action of the gravity of the spring I8 and the limiting piston plate 7, the limiting piston plate 7 is separated from the transmission piston plate 9 to generate negative pressure, and the lubricating oil is further sucked through the oil inlet pipe 14 today for supplement.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a linear ball screw formula slip table structure that removes, includes screw rod (2), bracing piece (4), driving motor and mount, screw rod (2) and mount swing joint, the one end of screw rod (2) and driving motor's output shaft fixed connection, bracing piece (4) have two and symmetric distribution in the both sides of screw rod (2), two the both ends of bracing piece (4) respectively with mount fixed connection, its characterized in that: coupling sleeve (1) has been cup jointed in the activity on screw rod (2), limiting piston board (7) have been cup jointed in the top activity that the inside of coupling sleeve (1) just is located screw rod (2), the hole groove has evenly been seted up to the inside of limiting piston board (7), there is backing roll (12) inside the hole groove through axle movable mounting, the even fixedly connected with spring I (8) of the upper surface of limiting piston board (7), top fixedly connected with transmission piston board (9) of spring I (8), the even fixed mounting of upper surface of transmission piston board (9) has support column (10), the top of support column (10) just is located the top fixedly connected with slip table (6) of coupling sleeve (1), the thread groove corresponding with screw rod (2) has been seted up to the inner wall of coupling sleeve (1) and the bottom of limiting piston board (7), the left side fixedly connected with conversion arc pipe (11) of coupling sleeve (1), the both ends of conversion arc pipe (11) communicate with the thread groove at coupling sleeve (1) right side inner chamber bottom and the thread groove at left side inner chamber top respectively.

2. The linear moving ball screw type sliding table structure according to claim 1, wherein: backing roll (12) have 3-6, adjacent two the interval of backing roll (12) is the same with the interval of thread groove, swing joint in the middle of the clearance directly over backing roll (12) and screw rod (2) and being located the thread groove, the rotatory tangential direction of backing roll (12) is parallel with the arc wall tangential direction that is located the top.

3. The linear moving ball screw type sliding table structure according to claim 1, wherein: the utility model discloses a coupling sleeve, including coupling sleeve cover (1), both sides symmetry fixedly connected with connecting sleeve group (3) around coupling sleeve (1), the bottom fixedly connected with fixed sleeve of connecting sleeve group (3), fixed sleeve cup joints with bracing piece (4) activity, spacing connecting rod (5) have been cup jointed in the top activity of connecting sleeve group (3), the top and slip table (6) fixed connection of spacing connecting rod (5), the inside movable mounting of connecting sleeve group (3) has spring II, the both ends of spring II respectively with the bottom surface fixed connection of connecting sleeve group (3) and spacing connecting rod (5).

4. The linear moving ball screw type sliding table structure according to claim 1, wherein: elasticity that spring I (8) extension length X formed is greater than the gravity sum of spacing piston board (7) and backing roll (12), elasticity that the compression length Y of spring II formed is greater than the gravity sum of spacing connecting rod (5), slip table (6), spacing piston board (7), spring I (8), transmission piston board (9) and support column (10).

5. The linear moving ball screw type sliding table structure according to claim 1, wherein: the utility model discloses a transmission piston plate, including coupling sleeve (1), transmission piston plate (9), spacing piston plate (7) and the inner chamber activity of coupling sleeve (1) cup joint, the right side of coupling sleeve (1) just is located fixed intercommunication between spacing piston plate (7) and transmission piston plate (9) and has advances oil pipe (14), the right side of coupling sleeve (1) just is located fixed intercommunication between spacing piston plate (7) and transmission piston plate (9) and has notes oil pipe (13), notes oil pipe (13) and the fixed intercommunication of middle part inner chamber of conversion arc pipe (11).

6. The linear moving ball screw type sliding table structure according to claim 1, wherein: and one-way valves are fixedly arranged in the supporting rod (4) and the oil filling pipe (13).

7. The linear moving ball screw type sliding table structure according to claim 1, wherein: the electromagnetic device is fixedly mounted inside the connecting sleeve set (3) and below the limiting connecting rod (5), and the bottom surface of the limiting connecting rod (5) is parallel to the upper surface of the electromagnetic device.