CN216242103U - Linear sliding table module - Google Patents

Abstract

A linear sliding table module comprises a sliding table body, an end plate, a motor mounting frame, a motor, a coupler, a lead screw, a bearing, an anti-backlash sliding table and a guide rail; the sliding table body is one section European standard 4080U aluminium alloy or national standard 4080U aluminium alloy, respectively install a guide rail directly over the lateral wall top of both sides on the sliding table body, install the end plate on the terminal surface of sliding table body one end, install the bearing on the end plate, install the motor mounting panel on the terminal surface of the other end, install the motor mounting bracket on another face of bearing on the hole site of motor mounting panel, the motor is installed on the motor mounting bracket, the motor passes through shaft coupling and screw connection, the screw rod is installed in the hole of the bearing of installation on end plate and motor mounting panel, screw connection drives the crack sliding table that disappears and moves on the guide rail, the crack sliding table that disappears installs and can move on the guide rail.

Description

Linear sliding table module

Technical Field

The utility model relates to the field related to mechanical transmission, in particular to a linear sliding table module.

Background

Along with the advance of social industrial mechanization, automation equipment has been widely used in all kinds of equipment, and sharp slip table module has certain advance wherein, still has not few problem, and the design structure is complicated, and the installation is inconvenient, and intensity is low, and the location is inaccurate, is the great drawback of current sharp slip table module.

Disclosure of Invention

The utility model discloses a linear sliding table module, wherein a 4080U aluminum profile with a mounting groove of 20 European standard or 20 national standard is used as a sliding table body, and the 4080U aluminum profile is provided with the mounting groove of 20 European standard or 20 national standard, so that the technical defect of inconvenience in mounting of the sliding table module is overcome; because the edge of the 4080U aluminum profile is provided with the protruded side wall, the structural strength of the aluminum profile is higher than that of a flat plate type profile, and the technical defect of low strength of a sliding table body is overcome; a fixed transmission clearance eliminating mechanism or a ball screw nut solves the technical defect of inaccurate positioning.

The technical scheme adopted by the technical problem solved by the utility model is as follows: a linear sliding table module comprises a sliding table body, an end plate, a motor mounting frame, a motor, a coupler, a lead screw, a bearing, an anti-backlash sliding table body and a guide rail; the utility model discloses a motor, including the slide bench body, the slide bench body is installed on the motor, the motor is installed on the motor mounting panel, the motor is installed on the lateral wall top of slide bench body both sides, install a guide rail directly over the lateral wall top, install the end plate on the terminal surface of slide bench body one end, install the bearing on the end plate, install the motor mounting panel on the terminal surface of the other end, install the motor mounting bracket on another face of bearing on the hole site of motor mounting panel, the motor is installed on the motor mounting bracket, the motor passes through shaft coupling and screw connection, the lead screw is installed in the hole of the bearing of installation on end plate and motor mounting panel, screw connection drives the crack sliding table body that disappears and moves on the guide rail, the crack sliding table body that disappears is installed and can move on the guide rail.

In the utility model, the sliding table body is specifically an European standard 4080U aluminum profile or a national standard 4080U aluminum profile with a certain length, the 4080U aluminum profile is a 20-series aluminum profile, the length is 50mm-6000mm, the height is 40mm, the width is 80mm, the aluminum profile is longitudinally provided with a groove with the width of 40mm and the depth of 20mm so that the aluminum profile is U-shaped, mounting grooves of European standard 20 or national standard 20 are arranged on the inner wall and the outer wall of the aluminum profile, the inner wall is provided with 4 mounting grooves, and the outer wall is provided with 10 mounting grooves; the end face array of the aluminum profile is provided with longitudinally penetrating mounting through holes, the distance between the holes is 20mm, the diameter of each hole is 3-6mm, the tolerance is usually 4.6mm and 0.2mm, and threads are tapped in the holes at two ends for mounting an end plate and a motor mounting plate.

In the utility model, the end plate is a plane plate, and a step through hole which corresponds to the mounting through hole of the sliding table body and is used for mounting and fixing the end plate is arranged on the end plate; the end plate is also provided with an end hole for mounting the bearing, and the end plate is also provided with a screw hole for mounting and fixing the bearing.

In the utility model, the motor mounting plate is a plane plate, and the motor mounting plate is provided with a step through hole which corresponds to the mounting through hole of the sliding table body and is used for mounting and fixing the motor mounting plate; the motor mounting plate is also provided with a counter bore for mounting a bearing, and the motor mounting plate is also provided with a screw hole for mounting and fixing the bearing; the center of the counter bore is also provided with a through hole for installing a power output shaft of the motor, and a plurality of threaded holes are arrayed around the through hole as the center and used for fixing a motor installation frame or directly fixing the motor.

In the utility model, the motor mounting frame is in a short square tube shape, and the middle of the motor mounting frame is hollow and has 4 surfaces; a step through hole is formed in the center of the surface A, and threaded through holes are formed in four corners with the step through hole as the center; a through hole is formed in the center of the surface B, and a plurality of mounting through holes are formed in the periphery of the surface B by taking the step through hole as the center in an array manner; the two surfaces C and D are side supporting surfaces and are connected with the surfaces A and B, and two edges of the two surfaces C and D are provided with U-shaped trimming edges.

In the utility model, the motor is an electromagnetic power device and is used for providing a rotating force for the screw rod, the motor is arranged on the motor mounting frame, and the types of the motor comprise a servo motor and a stepping motor.

In the utility model, the coupler is a columnar connecting piece which is arranged between the motor and the lead screw and connects the lead screw and the motor together, so that the motor can drive the lead screw to rotate.

In the utility model, the lead screw is a rod-shaped metal rod and is arranged in bearings in a motor mounting plate and an end plate, the motor is connected with the lead screw through a coupler and drives the lead screw to rotate in the bearings, the surface of the lead screw is provided with a thread groove which can be matched with a transmission clearance eliminating mechanism or a ball screw nut, and the lead screw comprises a ball screw and a T-shaped lead screw.

In the utility model, the guide rail is a rectangular or round bar-shaped metal strip, step through holes for installing the guide rail are arranged on the guide rail in an array mode, the guide rail is used for guiding and bearing the linear motion of the anti-backlash sliding table body, and the guide rail is fixedly installed on installation grooves in the tops of the side walls on the two sides of the sliding table body through bolts and European standard T-shaped nuts.

The anti-backlash sliding table body comprises a sliding table body, a sliding block, a connecting block, a transmission anti-backlash mechanism or a ball screw nut, wherein the sliding table body is a flat plate, the front surface of the flat plate is provided with a connecting hole position for connecting other equipment or modules, a mounting hole for mounting the sliding block and a mounting hole for the connecting block in an array manner, the back surface of the flat plate is provided with the sliding block and the connecting block, and the transmission anti-backlash mechanism is mounted on the connecting block; the connecting block is a semi-cylinder, threaded counter bores for installation are arranged on the side plane, a through hole for driving the clearance eliminating mechanism or the ball screw nut and the screw and a threaded counter bore for fixing the driving clearance eliminating mechanism or the ball screw nut are arranged on the upper and lower surfaces, the side plane of the connecting block is in contact with the back surface of the sliding table body, the hole positions are aligned with each other, the connecting block is fixedly installed on the back surface of the sliding table body by using screws, the driving clearance eliminating mechanism or the ball screw nut is arranged on the connecting block, and the driving clearance eliminating mechanism or the ball screw nut drives the sliding table body to move on the track through the connecting block; the sliding block is a metal block with a self-lubricating function or a resistance reducing mechanism, threaded counter bores are formed in the sliding block, the sliding block is matched with mounting holes in a flat plate, the sliding block is mounted and fixed on the back face of the sliding table body through screws, and the sliding block is matched with the guide rail, so that the sliding table body can move on the guide rail under the constraint of the guide rail.

In the utility model, the connecting block can be provided with one or a plurality of transmission anti-backlash mechanisms so as to improve the transmission load.

In the utility model, the connecting block can be provided with one or a plurality of ball screw nuts so as to improve the transmission load.

In the utility model, the ball screw nut is a transmission part which can change the rotation of the ball screw into linear motion, the ball screw nut is internally provided with balls and a retainer, the rolling of the balls replaces the sliding in a screw nut pair, an arc-shaped spiral groove is processed on the ball screw nut and is matched with the arc-shaped spiral groove on the screw rod, when the ball screw nut and the arc-shaped spiral groove are sleeved together, a spiral raceway is formed, and the ball is filled in the raceway. The balls roll along the roller path and circulate back and forth through the ball returning tube. The two ends of the ball returning pipe also play the role of blocking balls so as to prevent the balls from falling out along the roller path. The transmission efficiency is high: the mechanical efficiency can reach 92% -98%. The friction force is small, and the rolling of the ball is mainly used for replacing the sliding of the common screw nut pair. The axial clearance can be eliminated, the rigidity of the system is improved due to the action of the balls, and the clearance can be eliminated after pre-tightening.

According to the transmission clearance eliminating mechanism, two lead screw nuts are overlapped together, an elastic device (a spring) and a stopping device (a stopping bolt) capable of preventing the two lead screw nuts from rotating relatively are arranged between the two lead screw nuts, so that the two lead screw nuts keep a certain mutual repulsive force, the original return difference of the lead screw nuts is eliminated while the rotation of a lead screw is changed into linear motion, and the repeated positioning precision of a motion system is improved; the transmission clearance eliminating mechanism comprises a T-shaped lead screw nut, a clearance eliminating nut, a spring, a mounting stud and a stop bolt, the T-shaped lead screw nut is mounted in a through hole of the connecting block, a flange plate of the T-shaped lead screw nut is fixed on the connecting block through the mounting stud, the clearance eliminating nut and the T-shaped lead screw nut are coaxially mounted and are superposed in front of the T-shaped lead screw nut, the flange plate of the clearance eliminating nut enables the clearance eliminating nut and the T-shaped lead screw nut to keep coaxial through the stop bolt on the mounting stud, the clearance eliminating nut can perform front and back linear motion within a certain range relative to the T-shaped lead screw nut, the spring is arranged between the clearance eliminating nut and the T-shaped lead screw nut, and the spring can be directly mounted between the clearance eliminating nut and the T-shaped lead screw nut or between the clearance eliminating nut and the mounting stud.

In the utility model, a spring of the transmission clearance elimination mechanism can be directly arranged between a clearance elimination nut and a T-shaped lead screw nut, specifically, the T-shaped lead screw nut is arranged in a through hole of a connecting block, a flange plate of the T-shaped lead screw nut is fixed on the connecting block through a mounting stud, the clearance elimination nut and the T-shaped lead screw nut are coaxially arranged and superposed in front of the T-shaped lead screw nut, the flange plate of the clearance elimination nut enables the clearance elimination nut and the T-shaped lead screw nut to be coaxial through a stop bolt on the mounting stud, the clearance elimination nut can linearly move back and forth in a certain range relative to the T-shaped lead screw nut, the clearance elimination nut is provided with the spring, the spring simultaneously contacts the T-shaped lead screw nut, and the two lead screw nuts keep a mutually exclusive state through the elasticity of the spring, so that a direct clearance between a thread of the T-shaped lead screw nut and a lead screw is eliminated.

In the utility model, a spring of the transmission clearance eliminating mechanism can be directly arranged between a clearance eliminating nut and a mounting stud, in particular, a T-shaped lead screw nut is arranged in a through hole of a connecting block, a flange plate of the T-shaped lead screw nut is fixed on the connecting block through the mounting stud, the clearance eliminating nut and the T-shaped lead screw nut are coaxially arranged and superposed in front of the T-shaped lead screw nut, the flange plate of the clearance eliminating nut enables the clearance eliminating nut and the T-shaped lead screw nut to keep coaxial through a stop bolt on the mounting stud, the clearance eliminating nut can carry out forward and backward linear motion in a certain range relative to the T-shaped lead screw nut, the spring is arranged on the stop bolt, in particular, one end of the spring is contacted with the mounting stud, the other end of the spring is contacted with the clearance eliminating nut at the position between the clearance eliminating nut and the mounting stud, the two lead screw nuts are kept in a mutually exclusive state through the elasticity of the spring, so that the direct clearance between the thread of the T-shaped lead screw nut and the lead screw is eliminated.

In the utility model, the T-shaped lead screw nut is a hollow columnar transmission part, the inner hole is provided with threads, the threads are in contact with the lead screw and can change the rotation of the lead screw into the linear motion of the T-shaped lead screw nut, one end of the T-shaped lead screw nut is provided with the mounting flange, so that the T-shaped lead screw nut is conveniently fastened on the connecting block by the mounting stud, and the T-shaped lead screw nut can drive the connecting block to move.

In the utility model, the anti-backlash nut is a hollow columnar transmission part, the inner hole is provided with a thread, the thread is in contact with the lead screw and can change the rotation of the lead screw into linear motion, one end of the anti-backlash nut is provided with the mounting flange, and the anti-backlash nut is conveniently mounted on the T-shaped lead screw nut, so that the T-shaped lead screw nut and the anti-backlash nut can move together.

In the present invention, the spring is an elastic device installed between the T-type feed screw nut and the T-type feed screw nut or between the anti-backlash nut and the mounting stud for providing a repulsive force between the T-type feed screw nut and the T-type feed screw nut.

In the utility model, the mounting stud is a columnar fastener, one end of the mounting stud is a protruding screw, and the other end of the mounting stud is a threaded counter bore; screw one end is used for installing T type lead screw nut on the connecting block.

In the utility model, the stop bolt is a long rod screw and is arranged in a thread counter bore of the mounting stud for mounting the anti-backlash nut.

Has the advantages that: the utility model discloses a linear sliding table module, wherein 4080U aluminum profiles with 20 European standard installation grooves or 20 national standard installation grooves are used as sliding table bodies, and the 4080U aluminum profiles are provided with the 20 European standard installation grooves or 20 national standard installation grooves, so that the technical defect that the sliding table module is inconvenient to install is overcome; the side wall is arranged at the edge of the 4080U aluminum profile, so that the structural strength of the sliding table body is higher than that of a flat plate type profile, and the technical defect of low strength of the sliding table body is overcome; the use of a transmission clearance eliminating mechanism or a ball screw nut solves the technical defect of inaccurate positioning.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a top view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic three-dimensional partial view of the preferred embodiment of the present invention.

Fig. 4 is a three-dimensional schematic diagram of the preferred embodiment of the present invention.

Fig. 5 is a three-dimensional schematic view of the anti-backlash sliding table body for mounting a ball screw nut.

Fig. 6 is a three-dimensional schematic view of the anti-backlash sliding table body for mounting a ball screw nut.

FIG. 7 is a top view of the anti-backlash sliding table body with several transmission anti-backlash mechanisms.

FIG. 8 is a three-dimensional schematic view of the anti-backlash sliding table body with a plurality of transmission anti-backlash mechanisms.

FIG. 9 is a three-dimensional schematic view of the anti-backlash sliding table body with a plurality of transmission anti-backlash mechanisms.

FIG. 10 is a three-dimensional schematic view of a drive anti-backlash mechanism with a spring mounted between an anti-backlash nut and a mounting stud.

FIG. 11 is a three-dimensional schematic view of a drive anti-backlash mechanism with springs mounted between a T-bar nut and a T-bar nut.

FIG. 12 is a three-dimensional schematic view of a drive anti-backlash mechanism with springs mounted between a T-bar nut and a T-bar nut.

FIG. 13 is a three-dimensional schematic view of a drive anti-backlash mechanism with a spring mounted between an anti-backlash nut and a mounting stud.

Fig. 14 is a three-dimensional schematic view of a motor mount.

Fig. 15 is a three-dimensional schematic view of the sliding table body.

Fig. 16 is a three-dimensional schematic view of the sliding table body.

Fig. 17 is a three-dimensional schematic view of a motor mounting plate.

Fig. 18 is a three-dimensional schematic view of a motor mounting plate.

Fig. 19 is a top view of the motor mounting plate.

Fig. 20 is a three-dimensional schematic view of an end plate.

Fig. 21 is a three-dimensional schematic view of an end plate.

In the figure: the anti-backlash mechanism comprises a sliding table body 1, an end plate 2, a motor mounting plate 3, a motor mounting frame 4, a motor 5, a coupler 6, a lead screw 7, a bearing 8, a backlash eliminating sliding table body 9, a guide rail 10, a transmission backlash eliminating mechanism 11, a sliding table body 12, a slider 13, a connecting block 14, a ball screw nut 15, a screw nut 16, a screw nut 17, a spring 18, a mounting stud 19, a stop bolt 20 and a mounting bolt 21, wherein the sliding table body 1, the end plate 2, the motor mounting plate 3, the motor mounting frame 4, the motor 5, the coupler 6, the lead screw 7, the bearing 8, the backlash eliminating sliding table body 9, the guide rail 10, the transmission backlash eliminating mechanism 11, the sliding table body 12, the slider 13, the connecting block 14, the ball screw nut 15, the screw nut 16-T-shaped screw nut 16, the backlash eliminating nut 17, the spring 18, the mounting stud 19, the stop bolt 20 and the mounting bolt 21.

Detailed Description

The present invention will be further described with reference to the following detailed drawings so that the technical means, the creation features, the objectives and the effects of the present invention can be easily understood.

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation or be configured in a specific orientation

Construction and operation, and therefore, should not be construed as limiting the utility model.

Example 1: a linear sliding table module comprises a sliding table body 1, an end plate 2, a motor mounting plate 3, a motor mounting frame 4, a motor 5, a coupler 6, a lead screw, a bearing 8, an anti-backlash sliding table body 9 and a guide rail 10; respectively install a guide rail 10 directly over the lateral wall top of both sides on the sliding table body 1, install end plate 2 on the terminal surface of sliding table body 1 one end, install bearing 8 on end plate 2, install motor mounting panel 3 on the terminal surface of the other end, install motor mounting bracket 4 on the hole site of one face on the motor mounting panel 3 and install on bearing 8 another face, motor 5 installs on motor mounting bracket 4, motor 5 passes through shaft coupling 6 and screw connection, the lead screw is installed in the hole of the bearing 8 of installation on end plate 2 and motor mounting panel 3, screw connection drives the sliding table body 9 that disappears and moves on guide rail 10, the sliding table body 9 that disappears installs and can move on guide rail 10.

The anti-backlash sliding table body 9 comprises a sliding table body 12, a sliding block 13, a connecting block 14, a transmission anti-backlash mechanism 11 or a ball screw nut 15, wherein the sliding table body 12 is a flat plate, the front surface of the flat plate is provided with a connecting hole position for connecting other equipment or modules, a mounting hole for mounting the sliding block 13 and a mounting hole for mounting the connecting block 14 in an array manner, the back surface of the flat plate is provided with the sliding block 13 and the connecting block 14, and the transmission anti-backlash mechanism 11 is mounted on the connecting block 14; the connecting block 14 is a semi-cylinder, threaded counter bores for installation are arranged on the side plane, a transmission clearance elimination mechanism 11 or a ball screw nut 15 and a through hole of a screw are arranged on the upper and lower surfaces, the threaded counter bores for fixing the transmission clearance elimination mechanism 11 or the ball screw nut 15 are fixed on the upper and lower surfaces, the side plane of the connecting block 14 is in contact with the back surface of the sliding table body 12, the hole positions are aligned with each other, the connecting block is fixedly installed on the back surface of the sliding table body 12 by using screws, the transmission clearance elimination mechanism 11 is arranged on the connecting block 14, and the transmission clearance elimination mechanism 11 drives the sliding table body 12 to move on the track through the connecting block 14; the sliding block 13 is a metal block with a self-lubricating function or a resistance reducing mechanism, threaded counter bores are formed in the sliding block 13, the sliding block 13 is matched with mounting holes in a flat plate, and then the sliding block is mounted and fixed on the back of the sliding table body 12 through screws, and the sliding block 13 is matched with the guide rail 10, so that the sliding table body 12 moves on the guide rail 10 under the constraint of the guide rail 10.

The transmission gap eliminating mechanism 11 is based on the principle that two lead screw nuts are overlapped together, an elastic device (a spring 18) and a stop device (a stop bolt 20) capable of preventing the two lead screw nuts from rotating relatively are arranged between the two lead screw nuts, so that the two lead screw nuts keep a certain mutual repulsive force, the rotation of a lead screw is changed into linear motion, and the original return difference of the lead screw nuts is eliminated, so that the repeated positioning accuracy of a motion system is improved; the transmission clearance eliminating mechanism 11 comprises a T-shaped lead screw nut 16, a clearance eliminating nut 17, a spring 18, a mounting stud 19 and a stop bolt 20, the T-shaped lead screw nut 16 is mounted in a through hole of the connecting block 14, a flange plate of the T-shaped lead screw nut 16 is fixed on the connecting block 14 through the mounting stud 19, the clearance eliminating nut 17 and the T-shaped lead screw nut 16 are coaxially mounted and superposed in front of the T-shaped lead screw nut 16, the flange plate of the clearance eliminating nut 17 enables the clearance eliminating nut 17 and the T-shaped lead screw nut 16 to be coaxial through the stop bolt 20 on the mounting stud 19, the clearance eliminating nut 17 can linearly move back and forth in a certain range relative to the T-shaped lead screw nut 16, the spring 18 is arranged between the clearance eliminating nut 17 and the T-shaped lead screw nut 16, and the spring 18 can be directly mounted between the clearance eliminating nut 17 and the T-shaped lead screw nut 16 or between the clearance eliminating nut 17 and the mounting stud 19.

When in work: the motor 5 rotates to drive a lead screw arranged in a bearing 8 to rotate through a coupler 6, and the lead screw rotates to drive a transmission anti-backlash mechanism 11 arranged on an anti-backlash sliding table body 9 in contact with the lead screw to perform linear motion; the transmission clearance eliminating mechanism 11 changes the rotation of the screw rod into linear motion and eliminates the original return difference of the screw rod nut, and the transmission clearance eliminating mechanism is connected with the connecting block 14 and drives the clearance eliminating sliding table body 99 to perform linear motion on the track.

Example 2: a linear sliding table module comprises a sliding table body 1, an end plate 2, a motor mounting plate 3, a motor mounting frame 4, a motor 5, a coupler 6, a lead screw, a bearing 8, an anti-backlash sliding table body 9 and a guide rail 10; respectively install a guide rail 10 directly over the lateral wall top of both sides on the sliding table body 1, install end plate 2 on the terminal surface of sliding table body 1 one end, install bearing 8 on end plate 2, install motor mounting panel 3 on the terminal surface of the other end, install motor mounting bracket 4 on the hole site of one face on the motor mounting panel 3 and install on bearing 8 another face, motor 5 installs on motor mounting bracket 4, motor 5 passes through shaft coupling 6 and screw connection, the lead screw is installed in the hole of the bearing 8 of installation on end plate 2 and motor mounting panel 3, screw connection drives the sliding table body 9 that disappears and moves on guide rail 10, the sliding table body 9 that disappears installs and can move on guide rail 10.

The anti-backlash sliding table body 9 comprises a sliding table body 12, a sliding block 13, a connecting block 14, a transmission anti-backlash mechanism 11 or a ball screw nut 15, wherein the sliding table body 12 is a flat plate, the front surface of the flat plate is provided with a connecting hole position for connecting other equipment or modules, a mounting hole for mounting the sliding block 13 and a mounting hole for mounting the connecting block 14 in an array manner, the back surface of the flat plate is provided with the sliding block 13 and the connecting block 14, and the transmission anti-backlash mechanism 11 is mounted on the connecting block 14; the connecting block 14 is a semi-cylinder, threaded counter bores for installation are arranged on the side plane, through holes for the transmission clearance elimination mechanism 11 or the ball screw nut 15 and a screw are arranged on the upper surface and the lower surface of the connecting block, the threaded counter bores for fixing the transmission clearance elimination mechanism 11 or the ball screw nut 15 are fixed on the upper surface and the lower surface of the connecting block, the side plane of the connecting block 14 is in contact with the back surface of the sliding table body 12, the hole positions are aligned with each other, the connecting block is fixedly installed on the back surface of the sliding table body 12 by using screws, the ball screw nut 15 is arranged on the connecting block 14, and the ball screw nut 15 drives the sliding table body 12 to move on the track through the connecting block 14; the sliding block 13 is a metal block with a self-lubricating function or a resistance reducing mechanism, threaded counter bores are formed in the sliding block 13, the sliding block 13 is matched with mounting holes in a flat plate, and then the sliding block is mounted and fixed on the back of the sliding table body 12 through screws, and the sliding block 13 is matched with the guide rail 10, so that the sliding table body 12 moves on the guide rail 10 under the constraint of the guide rail 10.

The ball screw nut 15 is a transmission part which can change the rotation of the ball screw into linear motion, a ball and a retainer are arranged in the ball screw nut, the rolling of the ball replaces the sliding in the screw nut pair, an arc-shaped spiral groove is processed on the ball screw nut 15, an arc-shaped spiral groove is processed on the screw, when the ball screw nut and the screw nut are sleeved together, a spiral raceway is formed, and the ball is filled in the raceway. The balls roll along the roller path and circulate back and forth through the ball returning tube. The two ends of the ball returning pipe also play the role of blocking balls so as to prevent the balls from falling out along the roller path. The transmission efficiency is high, and the mechanical efficiency can reach 92% -98%. The friction force is small, and the rolling of the ball is mainly used for replacing the sliding of the common screw nut pair. The axial clearance can be eliminated, the rigidity of the system is improved due to the action of the balls, and the clearance can be eliminated after pre-tightening.

When in work: the motor 5 rotates to drive a lead screw installed in a bearing 8 to rotate through a coupler 6, and the rotation of the lead screw drives a ball screw nut 15 installed on an anti-backlash sliding table body 9 in contact with the lead screw to perform linear motion. The ball screw nut 15 changes the rotation of the screw into linear motion and eliminates the original return difference between transmission parts, and the ball screw nut is connected with the connecting block 14 and drives the anti-backlash sliding table body 9 to do linear motion on the track.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A linear sliding table module comprises a sliding table body, an end plate, a motor mounting frame, a motor, a coupler, a lead screw, a bearing, an anti-backlash sliding table body and a guide rail; the utility model discloses a sliding table, including the sliding table body, the sliding table body is installed directly over the lateral wall top of both sides respectively, the sliding table body specifically is the European standard 4080U aluminium alloy or the national standard 4080U aluminium alloy that have certain length, install the end plate on the terminal surface of sliding table body one end, install the bearing on the end plate, install the motor mounting panel on the terminal surface of the other end, install the motor mounting bracket on another face of bearing on the hole site of a face on the motor mounting panel, the motor is installed on the motor mounting bracket, the motor passes through shaft coupling and screw connection, the lead screw is installed in the hole of the bearing of installation on end plate and motor mounting panel, screw connection drives the crack elimination sliding table body and moves on the guide rail, the crack elimination sliding table body is installed and can be moved on the guide rail.

2. The linear sliding table module according to claim 1, wherein the sliding table body is a european standard 4080U aluminum profile or a national standard 4080U aluminum profile with a certain length, the 4080U aluminum profile is a 20 series aluminum profile, the length is 50mm to 6000mm, the height is 40mm, the width is 80mm, the aluminum profile is longitudinally provided with a groove with the width of 40mm and the depth of 20mm to make the structure of the aluminum profile be U-shaped, mounting grooves with the european standard 20 or the national standard 20 are arranged on the inner wall and the outer wall of the aluminum profile, the inner wall is provided with 4 mounting grooves, and the outer wall is provided with 10 mounting grooves; the end face array of the aluminum profile is provided with longitudinally penetrating mounting through holes, the distance between the holes is 20mm, the diameter of each hole is 3-6mm, specifically, the tolerance of 4.6mm is 0.2mm, and threads are tapped in the holes at the two ends for mounting an end plate and a motor mounting plate.

3. The linear sliding table module according to claim 1, wherein the end plate is a flat plate, and a step through hole corresponding to the mounting through hole of the sliding table body and used for mounting and fixing the end plate is formed in the end plate; the end plate is also provided with an end hole for mounting the bearing, and the end plate is also provided with a screw hole for mounting and fixing the bearing.

4. The linear sliding table module according to claim 1, wherein the motor mounting plate is a flat plate, and the motor mounting plate is provided with step through holes corresponding to the sliding table body mounting through holes and used for mounting and fixing the motor mounting plate; the motor mounting plate is also provided with a counter bore for mounting a bearing, and the motor mounting plate is also provided with a screw hole for mounting and fixing the bearing; the center of the counter bore is also provided with a through hole for installing a power output shaft of the motor, and a plurality of threaded holes are arrayed around the through hole as the center and used for fixing a motor installation frame or directly fixing the motor.

5. The linear sliding table module according to claim 1, wherein the guide rail is a rectangular or round bar-shaped metal strip, step through holes for installing the guide rail are arranged on the guide rail in an array manner, the guide rail is used for guiding and bearing the linear motion of the anti-backlash sliding table body, and the guide rail is fixedly installed on the installation grooves at the tops of the side walls on the two sides of the sliding table body through bolts and European standard T-shaped nuts.

6. The linear sliding table module according to claim 1, wherein the anti-backlash sliding table comprises a sliding table body, a sliding block, a connecting block, a transmission anti-backlash mechanism or a ball screw nut, the sliding table body is a flat plate, the front surface of the flat plate is provided with a connecting hole site for connecting other equipment or modules, a mounting hole for mounting the sliding block and a mounting hole for the connecting block in an array manner, the back surface of the flat plate is provided with the sliding block and the connecting block, and the transmission anti-backlash mechanism is mounted on the connecting block; the connecting block is a semi-cylinder, threaded counter bores for installation are arranged on the side plane, a through hole for driving the clearance eliminating mechanism or the ball screw nut and the screw and a threaded counter bore for fixing the driving clearance eliminating mechanism or the ball screw nut are arranged on the upper and lower surfaces, the side plane of the connecting block is in contact with the back surface of the sliding table body, the hole positions are aligned with each other, the connecting block is fixedly installed on the back surface of the sliding table body by using screws, the driving clearance eliminating mechanism or the ball screw nut is arranged on the connecting block, and the driving clearance eliminating mechanism or the ball screw nut drives the sliding table body to move on the track through the connecting block; the sliding block is a metal block with a self-lubricating function or a resistance reducing mechanism, threaded counter bores are formed in the sliding block, the sliding block is matched with mounting holes in a flat plate, the sliding block is mounted and fixed on the back face of the sliding table body through screws, and the sliding block is matched with the guide rail, so that the sliding table body can move on the guide rail under the constraint of the guide rail.

7. The linear sliding table module according to claim 6, wherein the transmission backlash eliminating mechanism is based on the principle that two lead screw nuts are stacked together, and an elastic device and a stop device capable of preventing the two lead screw nuts from rotating relative to each other are arranged between the two lead screw nuts, so that the two lead screw nuts keep a certain mutual repulsive force, and the rotation of the lead screw is changed into linear motion while the return difference of the lead screw nuts is eliminated, thereby improving the repeated positioning accuracy of the motion system; the transmission clearance eliminating mechanism comprises a T-shaped lead screw nut, a clearance eliminating nut, a spring, a mounting stud and a stop bolt, the T-shaped lead screw nut is mounted in a through hole of the connecting block, a flange plate of the T-shaped lead screw nut is fixed on the connecting block through the mounting stud, the clearance eliminating nut and the T-shaped lead screw nut are coaxially mounted and are superposed in front of the T-shaped lead screw nut, the flange plate of the clearance eliminating nut enables the clearance eliminating nut and the T-shaped lead screw nut to keep coaxial through the stop bolt on the mounting stud, the clearance eliminating nut can perform front and back linear motion in a certain range relative to the T-shaped lead screw nut, the spring is arranged between the clearance eliminating nut and the T-shaped lead screw nut, and the spring can be directly mounted between the clearance eliminating nut and the T-shaped lead screw nut or between the clearance eliminating nut and the mounting stud; one or a plurality of transmission anti-backlash mechanisms can be arranged on the connecting block so as to improve the transmission load; the connecting block may be fitted with one or several ball screw nuts in order to increase the transmission load.

8. The linear sliding table module according to claim 7, wherein the spring of the transmission anti-backlash mechanism can be directly installed between the anti-backlash nut and the T-shaped lead screw nut, specifically, the T-shaped lead screw nut is installed in the through hole of the connecting block, the flange of the T-shaped lead screw nut is fixed on the connecting block through the mounting stud, the anti-backlash nut and the T-shaped lead screw nut are coaxially installed and superposed in front of the T-shaped lead screw nut, the flange of the anti-backlash nut keeps coaxial with the T-shaped lead screw nut on the mounting stud through the stop bolt, the anti-backlash nut can linearly move back and forth in a certain range relative to the T-shaped lead screw nut, the anti-backlash nut is provided with the spring, and the spring simultaneously contacts with the T-shaped lead screw nut, the two lead screw nuts are kept in a mutually exclusive state through the elasticity of the spring, so that the direct clearance between the thread of the T-shaped lead screw nut and the lead screw is eliminated.

9. The linear sliding table module according to claim 7, wherein the spring of the transmission anti-backlash mechanism can be directly installed between the anti-backlash nut and the mounting stud, specifically, the T-shaped lead screw nut is installed in the through hole of the connecting block, the flange of the T-shaped lead screw nut is fixed on the connecting block through the mounting stud, the anti-backlash nut and the T-shaped lead screw nut are coaxially installed and superposed in front of the T-shaped lead screw nut, the flange of the anti-backlash nut enables the anti-backlash nut and the T-shaped lead screw nut to be coaxial through the stop bolt on the mounting stud, the anti-backlash nut can linearly move back and forth in a certain range relative to the T-shaped lead screw nut, the spring is installed on the stop bolt, specifically, one end of the spring contacts with the mounting stud and the other end contacts with the anti-backlash nut, and the two lead screw nuts keep a mutually exclusive state through the elastic force of the spring, thereby eliminating the direct clearance between the screw thread of the T-shaped lead screw nut and the lead screw.

10. The linear sliding table module according to claim 7, wherein the elastic means and the stopping means, the elastic means is preferably a spring; the stop means is preferably a stop bolt.

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