CN115899198A - Integrated embedded linear motion module without ball nut - Google Patents

Abstract

The invention discloses an integrated embedded linear motion module without a ball nut, which comprises: the motor, it sets up to electric drive's mechanical equipment, the motor output is connected with shaft coupling one end, and inside the shaft coupling runs through directly connecting the motor cabinet, the shaft coupling other end is connected with preceding supporting seat, and preceding supporting seat installs in body subassembly one end to the body subassembly other end is provided with back supporting seat. This embedded linear motion module of integral type that need not ball nut through inside to orbital embedded design, grinds the channel with integrative slide subassembly after the dustproof steel band of embedding, saves original ball guide rail structure, accomplishes compact structure in width and the two-way direction of height, effectively alleviates the dead weight, whole slide body increase stability, does not produce deformation, reduces the whole mechanical properties of module, because dustproof steel band inlays behind the body is inside for orbital slot grinding once only accomplishes.

Description

Integrated embedded linear motion module without ball nut

Technical Field

The invention relates to the technical field of linear motion modules, in particular to an integrated embedded linear motion module without a ball nut.

Background

Most of structural style all is the motion structure that slide and ball screw made up and form in the existing market, through stuffing the nut inside the slide, utilizes cylindric lock fixation nut and slide position, utilizes the motor to drive the lead screw and rotates for the inside ball cooperation of nut, thereby form rectilinear motion's structure, this kind of structure is comparatively complicated, and the cooperation relation between part and the part is also comparatively loaded down with trivial details.

Simultaneously the current embedded module structure in market adopts the slide of aluminium material basically, and its guide rail inlays the billet on the aluminium slide through inlayed mode, and its process is comparatively complicated, and the course of working is lengthy for batch production's inefficiency, and in the manufacturing process, wherein deviation appears in arbitrary part, to subsequent assembly and the whole equipment effect of module, all there is the hindrance, leads to the phenomenon that the operation is unsmooth to block.

In order to solve the above problems, innovative design based on the original linear motion module is urgently needed.

Disclosure of Invention

The invention aims to provide an integrated embedded linear motion module without a ball nut, which integrates transmission and linear motion components into a whole by canceling a ball screw pair structure and a linear guide rail pair structure, saves the original ball guide rail structure, achieves a more compact installation structure in the width and height directions, reduces the original installation space, improves the high rigidity and high stability of the whole and does not generate deformation. Therefore, the problems that the machining process proposed in the background technology is complex, the machining process is long, the batch production efficiency is low, any part has deviation in the manufacturing process, and the subsequent assembly and the whole module assembly effect are obstructed, so that the operation is not smooth and blocked are solved.

In order to achieve the purpose, the invention provides the following technical scheme: an integrated embedded linear motion module without a ball nut comprises a motor, wherein the motor is arranged as an electric drive mechanical device, the output end of the motor is connected with one end of a coupler, the coupler penetrates through the interior of a direct-connected motor base, the other end of the coupler is connected with a front supporting seat, the front supporting seat is installed at one end of a body assembly, the other end of the body assembly is provided with a rear supporting seat, an integrated sliding seat assembly is rotatably connected between the rear supporting seat and the front supporting seat, a dustproof steel belt is arranged at the upper end of the integrated sliding seat assembly, and a sliding seat cover is clamped and connected above the dustproof steel belt;

the body assembly includes: the device comprises a base and rails, wherein the base is arranged to be of a rectangular strip structure, the rails are symmetrically arranged on two sides of the inner wall of the base, grooves which are connected with an integrated sliding seat assembly in a sliding mode are formed in the base, two sides of the upper end of the base are connected with two sides of the lower end face of a dustproof steel strip, two sides of the upper end of the dustproof steel strip are in contact with a sealing plate arranged on the outer wall face of the base, and the cross section of the base is of a U-shaped structure;

an integral slide assembly comprising: the screw rod, the setting that with the coupling joint output end is connected are in inside spiral slideway of screw rod, quilt guide rail circulator, symmetry setting that the screw rod runs through are in the oiling mouth of spiral slideway both sides, winding are in inside nut steel ball of spiral slideway, connect with inside guide rail steel ball of guide rail circulator and quilt the slide body that the screw rod runs through, slide body bilateral symmetry is provided with the guide rail circulator.

By adopting the technical scheme, the structure has the advantages that the redundant space in the structure is effectively reduced, the dead weight is reduced, and the integral output is facilitated.

Preferably, one end of the direct-connection motor base is positioned and installed with one side of the front supporting base through a bolt, and the front supporting base is rotatably connected with the output end of the coupler.

By adopting the technical scheme, when the device is used in a sealed state, the possibility that dust enters the equipment is reduced.

Preferably, the front supporting seat and the rear supporting seat are both arranged to be convex plate structures, and circular rotating rings rotatably connected with two ends of the screw rod are arranged between the front supporting seat and the rear supporting seat.

By adopting the technical scheme, the front supporting seat and the rear supporting seat are limited for the movable position of the screw rod.

Preferably, the inside recess that sets up of base is sliding connection with slide body bottom, and base both sides top equidistance is provided with the tapped hole.

By adopting the technical scheme, the base position provides stable moving direction and installation space for the sliding seat body.

Preferably, the body assembly, the front supporting seat and the rear supporting seat form a cuboid strip-shaped structure with an open upper end face.

Adopt above-mentioned technical scheme, slide subassembly provides spacing and the use of slide guide scope as an organic whole.

Preferably, the spiral slideway is spirally arranged on the surface of the screw rod, the inside of the spiral slideway is connected with one section of the nut steel ball in a surrounding state in a sliding manner, and the other section of the nut steel ball is positioned in the inner circulator.

By adopting the technical scheme, the thread steel ball is positioned in the inner circulator to realize the switching operation between the inner circulation and the outer circulation.

Preferably, the guide rail circulator is internally and rotatably connected with guide rail steel balls, the guide rail steel balls are arranged in parallel with the screw rod, and the guide rail steel balls are positioned in the sliding seat body.

By adopting the technical scheme, the stability of the sliding seat body in the middle of the displacement process is kept through the guide rail steel balls.

Preferably, an L-shaped oil injection passage is formed in one side of the oil injection nozzle, the oil injection passages connected with the oil injection nozzle are formed in the sliding seat body, and the sliding seat body is symmetrically provided with the oil injection passages of the 2 oil injection nozzles.

By adopting the technical scheme, the oil injection nozzle can directly and quickly inject corresponding lubricating liquid into the threaded slideway, so that the internal maintenance is facilitated.

Preferably, an internal circulator is arranged inside the sliding seat body, and the internal circulator is connected in a penetrating and sliding mode through a nut steel ball.

By adopting the technical scheme, the internal circulator provides a circulating rotating space inside for the nut steel ball when in use.

Preferably, an outer circulator is arranged inside the sliding seat body, and a groove which slides with the nut steel ball is arranged inside the outer circulator.

By adopting the technical scheme, when the outer circulator is used as the nut steel ball, a circulating rotating space of an outer channel is provided.

Compared with the prior art, the invention has the beneficial effects that: this need not embedded linear motion module of integral type of ball nut:

1. through the embedded design of the inner part to the track, the integral slide seat assembly grinds the channel after being embedded into the dustproof steel strip, the original ball guide rail structure is saved, a ball nut is not needed, the structure is compact in the two-way direction of the width and the height, the dead weight is effectively reduced, the stability of the integral slide seat body is improved, the deformation is avoided, the integral mechanical property of the module is reduced, and the groove grinding of the track is finished at one time after the dustproof steel strip is embedded into the integral slide seat body, so that the higher level walking straightness is ensured;

2. through exposed installation in the device, after the dustproof steel belt is embedded into the sliding seat body, dust entering is reduced, the cleanliness of a use environment is effectively kept, two installation and use modes of an upper locking type and a lower locking type can be realized without disassembling the steel belt, and a pin hole and an installation reference surface are installed at the bottom, so that the device is more convenient to install during debugging and use;

3. lie in the inside spiral slideway of lead screw during use and lead for the active position of nut steel ball, effectively reduce original installation space, use with the embedded slip of inner circulator at the nut steel ball for whole width reduces, effectively reduces and changes the required space of dress, and when using the module oiling, through the direct oiling of glib talker of slip table both sides, need not to tear open the lid, and it is convenient to use the operation.

Drawings

FIG. 1 is a schematic view of a fully disassembled three-dimensional front view structure of the present invention;

FIG. 2 is a schematic view of the overall installation state of the present invention in a three-dimensional front view;

FIG. 3 is a schematic view of the three-dimensional structure of the body assembly and the integrated slide carriage assembly of the present invention;

FIG. 4 is a schematic view of the three-dimensional rear view structure inside the slider body according to the present invention;

FIG. 5 is a side view of the body assembly and the integrated slide assembly of the present invention;

FIG. 6 is a schematic view of a three-dimensional structure of a nut in a steel ball using state;

FIG. 7 is a perspective view of the external circulator of the present invention;

FIG. 8 is a side view of the inner circulator and the inner part of the slider body according to the present invention.

In the figure:

1. an electric motor; 2. directly connecting a motor base; 3. a coupling; 4. a front support base;

5. a body assembly; 501. a base; 502. a track;

6. a rear support base;

7. an integral slide assembly; 701. a screw rod; 702. a spiral slideway; 703. a rail circulator; 704. an oil injection nozzle; 705. nut steel balls; 706. an internal circulator; 707. guide rail steel balls; 708. a slider body; 709. an external circulator;

8. a dust-proof steel belt; 9. a sliding seat cover.

Detailed Description

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

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides an embedded linear motion module of integral type that need not ball nut, includes: the electric drive motor 1 drives the coupler 3 to drive the screw rod 701 to rotate, so that the spiral slideway 702 in the screw rod 701 performs rotary motion in the motor 1, the nut steel balls 705 positioned in the spiral slideway 702 are synchronously driven to rotate, the nut steel balls 705 enter the internal circulator 706 to realize circular operation when the nut steel balls 705 rotate for use, the screw rod 701 drives the nut steel balls 705 to perform circular rotation so as to realize horizontal displacement in the screw rod 701, the guide rail circulator 703 is matched with the sliding seat body 708 to realize linear motion, meanwhile, the guide rail 707 steel balls are matched with the guide rail circulator 703 to perform rotary operation so as to provide auxiliary operation for the sliding seat body 708, the use effect of the linear motion is effectively achieved, the whole equipment is free from conversion from the rotary motion to the linear motion, the stability of the whole is effectively improved, and the later maintenance operation is convenient;

in some embodiments, the motor 1 is configured as an electric-driven mechanical device, an output end of the motor 1 is connected with one end of a coupler 3, the coupler 3 penetrates through the inside of a direct-connected motor base 2, the other end of the coupler 3 is connected with a front supporting base 4, the front supporting base 4 is installed at one end of a body assembly 5, the other end of the body assembly 5 is provided with a rear supporting base 6, an integral sliding base assembly 7 is rotatably connected between the rear supporting base 6 and the front supporting base 4, a dustproof steel strip 8 is arranged at the upper end of the integral sliding base assembly 7, a sliding base cover 9 is clamped and connected above the dustproof steel strip 8, one end of the direct-connected motor base 2 and one side of the front supporting base 4 are positioned and installed through bolts, the inside of the front supporting base 4 is rotatably connected with an output end of the coupler 3, the front supporting base 4 and the rear supporting base 6 are both configured as convex plate structures, circular rotating rings rotatably connected with two ends of a lead screw 701 are arranged between the front supporting base 4 and the rear supporting base 6, and the body assembly 5, the front supporting base 4 and the rear supporting base 6 form a rectangular structure with an open upper end surface;

in some embodiments, the motor 1 is directly driven to rotate by electric power, so that the output end of the motor 1 drives the connected coupler 3 to rotate, when in use, the coupler 3 is positioned inside the direct-connected motor base 2 to rotate, the direct-connected motor base 2 provides a protection structure for the coupler 3, as shown in fig. 1 and 2, when in use, two ends of the direct-connected motor base 2 respectively form a sealing structure with the motor 1 and the front support base 4, when in use, an annular structure rotationally connected with one end of the coupler 3 is arranged inside the front support base 4, when in use, a convex structure formed by the front support base 4 and the rear support base 6 is symmetrically arranged on two sides of the base 501, as shown in fig. 1, when in use, the annular rotating structure positioned inside the front support base 4 and the rear support base 6 provides a rotation auxiliary structure for rotation of the lead screw 701, and a dustproof steel belt 8 is arranged above the base 501, so that the dustproof steel belt 8 is arranged at the upper end of the slide base 708, when in use, the dust-proof steel belt 8 is positioned above the slide base 708, and the dust-proof steel belt 8 is positioned on two sides of the sealing plate 501, and the dust-sealing plate is effectively positioned on the two sides of the sealing plate 501, and the dust-sealing scene is reduced;

in some embodiments, the body assembly 5 comprises: the base 501 is arranged to be of a cuboid strip-shaped structure, and the rails 502 are symmetrically installed on two sides of the inner wall of the base 501, grooves which are in sliding connection with the integrated sliding seat assembly 7 are formed in the base 501, two sides of the upper end of the base 501 are connected with two sides of the lower end face of the dustproof steel strip 8, two sides of the upper end of the dustproof steel strip 8 are in contact with a sealing plate installed on the outer wall face of the base 501, the cross section of the base 501 is arranged to be of a U-shaped structure, the grooves formed in the base 501 are in sliding connection with the bottom end of the sliding seat body 708, and threaded holes are formed in the positions above two sides of the base 501 at equal intervals;

in some embodiments, the rails 502 symmetrically located on the inner wall of the base 501 provide rotation for the side wall position of the sliding seat body 708, as shown in fig. 5, the sliding seat body 708 is located inside the base 501 to slide, when in use, both sides located at the upper end of the base 501 and the position of the dustproof steel strip 8 are arranged in an embedded structure, so that after the dustproof steel strip 8 is embedded inside the base 501, one-time groove grinding is performed for the guide rails inside the base 501 and the rails inside the rail 502, the overall stability is effectively maintained, the linear running process in the circulating running process is kept in a linear state at the same height, the running flatness can reach +/-0.02/300 mm, and the sliding seat body 708 is integrally cast steel, according to the characteristics of the integral structure, the embedded nut steel ball 705 is arranged to rotate, the internal circulator 706 is located to realize circulating rotation, the lead can reach 20mm, the vertical load is increased by 50%, the speed can reach 1m/s at the highest speed, the integral performance of 10mm outer diameter nuts adopted by far beyond the 40 series in the same industry, when the position of the positioning body assembly 5 is installed, the bottom pin hole is installed, so that the horizontal installation of the pin hole can be conveniently placed for a customer;

in some embodiments, the integral carriage assembly 7 comprises: the oil-injection-type hydraulic coupling comprises a screw rod 701 connected with the output end of a coupling 3, a spiral slideway 702 arranged inside the screw rod 701, a guide rail circulator 703 penetrated by the screw rod 701, oil injection nozzles 704 symmetrically arranged at two sides of the spiral slideway 702, nut steel balls 705 wound inside the spiral slideway 702, guide rail steel balls 707 connected inside the guide rail circulator 703 and a slide carriage body 708 penetrated by the screw rod 701, wherein the guide rail circulator 703 is symmetrically arranged at two sides of the slide carriage body 708, the spiral slideway 702 is spirally arranged on the surface of the screw rod 701, one section of the nut steel balls 705 is slidably connected inside the spiral slideway 702 in a surrounding state, the other section of the nut steel balls 705 is arranged inside the inner circulator 706, the guide rail steel balls 707 are rotatably connected inside the guide rail circulator 703, the guide rail steel balls 707 are arranged in parallel to the screw rod 701, the guide rail steel balls 707 are arranged inside the slide carriage body 708, an L-shaped oil injection passage is arranged at one side of the oil injection nozzle 704, the oil injection passage 704 connected with the oil injection nozzles 704 is arranged inside the slide carriage body 708, 2 oil injection nozzles 708 are symmetrically arranged inside the slide carriage body 708, and the steel balls 706 are penetrated and connected with the steel balls 706 inside the inner circulator 706;

in some embodiments, when in use, the slide base body 708 formed by casting cast steel in the integral slide base assembly 7 is used for converting the rotary motion into the linear motion, the screw 701 which rotates in the middle of the front support base 4 and the rear support base 6 mainly penetrates through the slide base body 708, and the guide rail circulator 703 is arranged at the position which rotates through the slide base body 708 to provide assistance for the rotating position of the screw 701 for sweating, meanwhile, two ends of the guide rail steel ball 707 positioned in the guide rail circulator 703 are positioned in the symmetrically arranged 2 guide rail circulators 703, and simultaneously, the rotating position of the guide rail steel ball 707 is arranged in parallel with the screw 701, as shown in fig. 3, when the screw 701 rotates, the guide rail steel ball 707 positioned in the 2 guide rail circulators 703 rotates through the middle of the guide rail circulator 703 to drive the same direction, and simultaneously, the screw 701 rotates to drive the nut steel ball 705 positioned in the spiral slideway 702 to rotate, so that the balls of the nut steel balls 705 wound inside the spiral slideway 702 rotate synchronously, the movement in the horizontal direction is realized along the arrangement direction of the spiral slideway 702, the internal circulator 706 and the sliding seat body 708 are provided with two types which respectively correspond to an internal circulation structure and an external circulation structure and are installed inside the movement module through the sliding seat body 708 for use, the nut steel balls 705 positioned inside the internal circulator 706 and the sliding seat body 708 rotate in an internal circulation manner, the rotation is realized through the spiral slideway 702 completely positioned inside the internal circulator 706 and the sliding seat body 708 and wound inside the screw rod 701, the internal infinite circulation rotation operation is formed, as shown in fig. 4, fig. 6 and fig. 8, the internal circulator 706 is pushed to push the sliding seat body 708 to realize the linear movement, the rotary motion is effectively converted into linear motion, and the original ball guide rail structure is saved, so that the structure can be more compact in the width direction and the height direction, and the dead weight is reduced by about 25% compared with that of an aluminum-based module in the same industry;

in some embodiments, an external circulator 709 is disposed inside the sliding base body 708, a groove sliding with the nut ball 705 is disposed inside the external circulator 709, the nut ball 705 rotating inside the sliding base body 708 and located inside the external circulator 709 is referred to as external circulation, one end of the nut ball 705 is still wound inside the spiral slideway 702 inside the lead screw 701 and is rotated, a position where the nut ball 705 is rotated out slides inside the internal chute of the external circulator 709, so that the nut ball 1 rotates in a circulating manner in a state of driving the lead screw 701 to rotate, and one end of the nut ball 705 slides through the position of the external circulator 709, so that the rotating manner of the external circulation is used.

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 (10)

1. The utility model provides a need not embedded linear motion module of integral type of ball nut, includes motor (1), its characterized in that:

the motor (1) is arranged as an electric drive mechanical device, the output end of the motor (1) is connected with one end of a coupler (3), the coupler (3) penetrates through the interior of a direct-connection motor base (2), the other end of the coupler (3) is connected with a front supporting base (4), the front supporting base (4) is installed at one end of a body component (5), a rear supporting base (6) is arranged at the other end of the body component (5), an integrated sliding base component (7) is rotatably connected between the rear supporting base (6) and the front supporting base (4), a dustproof steel belt (8) is arranged at the upper end of the integrated sliding base component (7), and a sliding base cover (9) is clamped and connected above the dustproof steel belt (8);

the body assembly (5) comprises: the device comprises a base (501) which is arranged to be of a cuboid strip structure and rails (502) which are symmetrically installed on two sides of the inner wall of the base (501), wherein a groove which is connected with an integrated sliding seat component (7) in a sliding mode is formed in the base (501), two sides of the upper end of the base (501) are connected with two sides of the lower end face of a dustproof steel strip (8), two sides of the upper end of the dustproof steel strip (8) are in contact with a sealing plate installed on the outer wall face of the base (501), and the cross section of the base (501) is of a U-shaped structure;

the integrated slide assembly (7) comprises: the automatic feeding device comprises a screw rod (701) connected with the output end of the coupler (3), a spiral slideway (702) arranged inside the screw rod (701), a guide rail circulator (703) penetrated by the screw rod (701), oil filling nozzles (704) symmetrically arranged on two sides of the spiral slideway (702), nut steel balls (705) wound inside the spiral slideway (702), guide rail steel balls (707) connected inside the guide rail circulator (703) and a sliding seat body (708) penetrated by the screw rod (701), wherein the guide rail circulator (703) is symmetrically arranged on two sides of the sliding seat body (708).

2. The in-line linear motion module of claim 1, wherein the ball nut is not required to be used: one end of the direct-connection motor base (2) is positioned and installed with one side of the front support base (4) through a bolt, and the inside of the front support base (4) is rotatably connected with the output end of the coupler (3).

3. The in-line linear motion module of claim 1, wherein the linear motion module comprises: the front supporting seat (4) and the rear supporting seat (6) are both arranged to be convex plate structures, and circular rotating rings which are rotatably connected with the two ends of the screw rod (701) are arranged between the front supporting seat (4) and the rear supporting seat (6).

4. The in-line linear motion module of claim 1, wherein the linear motion module comprises: the inside recess that sets up of base (501) is sliding connection with slide body (708) bottom, and base (501) both sides top equidistance is provided with the tapped hole.

5. The in-line linear motion module of claim 1, wherein the ball nut is not required to be used: the upper end face of the body component (5), the front supporting seat (4) and the rear supporting seat (6) is of an open cuboid strip-shaped structure.

6. The in-line linear motion module of claim 1, wherein the ball nut is not required to be used: the spiral slideway (702) is spirally arranged on the surface of the screw rod (701), a section of the nut steel ball (705) is connected to the inside of the spiral slideway (702) in a surrounding state in a sliding mode, and the other section of the nut steel ball (705) is positioned inside the inner circulator (706).

7. The in-line linear motion module of claim 1, wherein the linear motion module comprises: the guide rail circulator (703) is internally and rotatably connected with a guide rail steel ball (707), the guide rail steel ball (707) is arranged in parallel with the screw rod (701), and the guide rail steel ball (707) is positioned inside the sliding seat body (708).

8. The in-line linear motion module of claim 1, wherein the linear motion module comprises: one side of the oil injection nozzle (704) is provided with an L-shaped oil injection channel, the oil injection channel connected with the oil injection nozzle (704) is arranged inside the sliding seat body (708), and the sliding seat body (708) is internally and symmetrically provided with the oil injection channels of 2 oil injection nozzles (704).

9. The in-line linear motion module of claim 8, wherein the linear motion module comprises: an inner circulator (706) is arranged inside the sliding seat body (708), and the inner circulator (706) is connected in a penetrating and sliding mode through a nut steel ball (705).

10. The in-line linear motion module of claim 8, wherein the linear motion module comprises: an outer circulator (709) is arranged in the sliding seat body (708), and a groove which slides with the nut steel ball (705) is arranged in the outer circulator (709).

Images