CN214499941U

CN214499941U - Accurate ball screw subassembly of long-life

Info

Publication number: CN214499941U
Application number: CN202120782983.4U
Authority: CN
Inventors: 唐建国; 程小华
Original assignee: Shenzhen Jiabosheng Technology Co ltd
Current assignee: Shenzhen Jiabosheng Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-26
Anticipated expiration: 2031-04-16

Abstract

The utility model belongs to the technical field of ball screw, and discloses a long-life precise ball screw assembly, which comprises a mounting frame, a side plate and a rod assembly, wherein the mounting frame comprises an L-shaped plate and a folding plate, the folding plate is rotatably mounted at the end part of the L-shaped plate through a hinge, the rod assembly is rotatably mounted between the L-shaped plate and the side plate, the rod assembly comprises a main screw rod piece and an auxiliary screw rod piece, the utility model discloses a ball screw assembly is arranged in a mode of combining the main screw rod piece and the auxiliary screw rod piece, the required screw rod quantity is selected according to the actual demand, if only one screw rod is needed, the side plate is mounted in a positioning groove on the L-shaped plate, then the main screw rod piece is mounted between the mounting frame and the side plate, if the stroke of a moving piece is longer, the position of the side plate is adjusted, the main mounting shaft which moves on the main rod is dismounted, then the main rod and the auxiliary rod are spliced, and the application range is wide, and the folding plate is convenient to store and transport.

Description

Accurate ball screw subassembly of long-life

Technical Field

The utility model belongs to the technical field of ball screw, concretely relates to accurate ball screw subassembly of long-life.

Background

A ball screw is a transmission element that converts rotational motion into linear motion, or torque into axially repetitive force. The ball screw has the advantages of high precision, reversibility and high efficiency, and is widely applied to various industrial equipment and precision instruments, particularly the machine tool industry. The ball screw consists of a screw rod, a nut, a steel ball, a preforming piece, a reverser and a dust remover, and the rotation of the screw rod is controlled by a motor so as to control the nut to drive the horizontal movement of a workpiece.

Present ball screw length is fixed, and application scope is comparatively limited, and it is great to occupy the space during longer lead screw transportation, inconvenient transportation, and the ball screw subassembly does not set up stroke protection device, if carelessly surpass the stroke when the nut slides, then can appear the ball and drop, the impaired phenomenon of circulation part to the precision that leads to the ball screw subassembly reduces and life reduces.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long-life accurate ball screw subassembly to it is fixed to solve current ball screw subassembly lead screw length, and application scope limits, and ball screw does not set up stroke protection device, and the nut has the condition that surpasss the stroke, leads to the ball screw precision to reduce, the problem that life reduced.

In order to achieve the above object, the utility model provides a following technical scheme: a long-life precision ball screw assembly comprises a mounting frame, a side plate and a rod assembly, wherein the mounting frame comprises an L-shaped plate and a folding plate, the folding plate is installed at the end part of the L-shaped plate through hinge rotation, the side plate is installed on the mounting frame through a bolt, the rod assembly is installed between the L-shaped plate and the side plate in a rotating mode, the rod assembly comprises a main screw rod piece and an auxiliary screw rod piece, a nut is sleeved outside the main screw rod piece in a rotating mode through threads, the main screw rod piece comprises a main rod and two main installation shafts, one of the main installation shafts is welded at one end of the main rod, an annular column is welded on the inner wall of the other end of the main rod, the auxiliary screw rod piece comprises an auxiliary rod and an auxiliary installation shaft, the auxiliary installation shaft is welded at one end of the auxiliary rod, four limiting grooves are formed in an array mode on the inner wall of one end, far away from the auxiliary installation shaft, of the auxiliary rod and the inner wall of one main installation shaft, four arc-shaped sliding blocks are arranged on the side wall of the annular column in a sliding mode, and four arc-shaped sliding blocks are distributed in an array mode, and each arc-shaped sliding block is matched with one limiting groove.

Preferably, the resistive touch screen is embedded in the vertical edge of the L-shaped plate and the side plate, two limit blocks are welded on the vertical edge of the L-shaped plate and one side wall of the side plate, the movable plate and each movable plate are slidably arranged in one limit block on the L-shaped plate and the side plate, one end of each movable plate is connected with a spring d, and each spring d is in elastic contact with one resistive touch screen.

Preferably, the welding has the locating piece on the inner wall of annular post, and the locating piece is the cross, the spout has all been seted up to four tip of locating piece, every the one end of arc slider all sets up in a spout to be connected with spring c with the deepest of spout.

Preferably, the inner wall of mobile jib has the welding to be limited plate, and is provided with the pull ring on the lateral wall of limited plate, every the one end of arc slider all is connected with haulage rope b, and four haulage rope b all assemble in a bit, and are connected with haulage rope an between this point and the pull ring.

Preferably, the positioning groove is formed in the top of each L-shaped plate and the top of each folding plate, threaded holes are formed in two side walls of each positioning groove, and the side plates are installed in the positioning grooves through bolts.

Preferably, a motor is fixed on one side wall of the L-shaped plate through a support and is provided with a controller, and the output end of the motor is rotatably connected with one main mounting shaft through a rotating shaft.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses a set up the ball screw subassembly into the form that main lead screw member and vice lead screw member combine, select required lead screw quantity according to the actual demand, if only need a lead screw, install the curb plate in the constant head tank on the L template, install the main lead screw member again between mounting bracket and curb plate can, if treat that the moving member stroke is longer, the position of adjustment curb plate, lift off the main installation axle of activity on the mobile jib, again with the mobile jib with vice pole concatenation can, application scope is wide, and the folded sheet is convenient for accomodate, convenient transportation.

(2) The utility model discloses an all fix the stopper on the lateral wall of L template and curb plate, the resistance touch-sensitive screen is established all to inlay with the inside of curb plate to the L template, and all slide in the last stopper of L template and curb plate and set up the movable plate, when the nut slides, if be about to slide to the lead screw tip, the nut promotes the movable plate gradually, spring d and resistance touch-sensitive screen contact back, the resistance touch-sensitive screen is with signal transmission to controller, thereby make the motor stall at once, avoid the nut to surpass to form and lead to the ball to drop or the circulation part is impaired, the precision and the life of ball screw subassembly have been ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the main wire rod and the mounting frame of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is a schematic view of the main wire rod of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at B;

fig. 6 is a cross-sectional view of the annular post of the present invention;

FIG. 7 is a cross-sectional view of the auxiliary wire rod of the present invention;

in the figure: 1. a mounting frame; 2. an L-shaped plate; 3. folding the board; 4. a side plate; 5. a resistive touch screen; 6. a lever assembly; 7. a secondary wire rod member; 8. a main wire rod member; 9. a nut; 10. a controller; 11. a motor; 12. a limiting block; 13. positioning a groove; 14. a main mounting shaft; 15. a main rod; 16. a pull ring; 17. a limiting plate; 18. a limiting groove; 19. an annular column; 20. an arc-shaped sliding block; 21, positioning blocks; 22. an auxiliary rod; 23. a secondary installation shaft; 24. a chute; 25. and (5) moving the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides the following technical solutions: a long-life precision ball screw assembly comprises an installation frame 1, a side plate 4 and a rod assembly 6, wherein the installation frame 1 comprises an L-shaped plate 2 and a folding plate 3, the folding plate 3 is rotatably installed at the end part of the L-shaped plate 2 through a hinge, the folding plate 3 is folded during transportation, space is saved, the side plate 4 is installed on the installation frame 1 through a bolt, the rod assembly 6 is rotatably installed between the L-shaped plate 2 and the side plate 4, the rod assembly 6 comprises a main screw rod piece 8 and an auxiliary screw rod piece 7, the outer part of the main screw rod piece 8 is rotatably sleeved with a nut 9 through threads, the main screw rod piece 8 comprises a main rod 15 and two main installation shafts 14, one main installation shaft 14 is welded at one end of the main rod 15, an annular column 19 is welded on the inner wall of the other end of the main rod 15, the auxiliary screw rod piece 7 comprises an auxiliary rod 22 and an auxiliary installation shaft 23, the auxiliary installation shaft 23 is welded at one end of the auxiliary rod 22, the main rod 15 and the auxiliary rod 22 are both hollow, four spacing grooves 18 have all been seted up in the array on the one end inner wall of vice installation axle 23 is kept away from to auxiliary rod 22 and on the inner wall of a main installation axle 14, it is provided with four arc slider 20 to slide on the lateral wall of annular post 19, and four arc slider 20 array distribution, the one end edge of arc slider 20 is 1/4 circular-arcly, every arc slider 20 all cooperates with a spacing groove 18, when only needing a lead screw, locate the main installation axle 14 sliding sleeve of freedom on annular post 19, when needing two lead screws, take off this main installation axle 14, and locate on annular post 19 with auxiliary rod 22 sliding sleeve, mobile jib 15 splices with auxiliary rod 22 after, its outside screw thread can closely link up.

Further, the resistance touch screen 5 is embedded in the vertical edge of the L-shaped plate 2 and the inside of the side plate 4, two limit blocks 12 are welded on the vertical edge of the L-shaped plate 2 and one side wall of the side plate 4, the limit blocks 12 limit the distance of the nut 9, moving plates 25 are arranged in the L-shaped plate 2 and one limit block 12 on the side plate 4 in a sliding manner, one end of each moving plate 25 is connected with a spring d, each spring d is in elastic contact with one resistance touch screen 5, two stop blocks are welded on the side wall of each moving plate 25, two limit grooves are formed in the limit blocks 12, the two stop blocks are respectively embedded in the two limit grooves in a sliding manner, a spring e is connected between the two stop grooves and the inner wall of each limit groove, when the nut 9 pushes the 25, the spring e is compressed, the spring d gradually contacts the moving plate 5, and after the

nuts

9 and 25 are separated, the spring e is reset, the spring d is separated from the resistive touch screen 5.

Furthermore, the inner wall of the annular column 19 is welded with a positioning block 21, the positioning block 21 is cross-shaped, the four ends of the positioning block 21 are provided with sliding grooves 24, one end of each arc-shaped sliding block 20 is arranged in one sliding groove 24 and connected with a spring c in the deepest part of the sliding groove 24, and when the spring c is in a natural state, the arc-shaped part of each arc-shaped sliding block 20 is positioned outside the sliding groove 24.

It is specific, the welding has limiting plate 17 on the inner wall of mobile jib 15, and be provided with pull ring 16 on limiting plate 17's the lateral wall, pull ring 16 is close to mobile jib 15 welding has main installation axle 14 one end, guarantee that staff's hand can contact pull ring 16, the one end of every arc slider 20 all is connected with haulage rope b, haulage rope b passes spring c, and extend to the inside of locating piece 21, four haulage rope b all assemble in a bit, this bit is located locating piece 21's center department, and be connected with haulage rope an between this bit and the pull ring 16, when spring c is in natural state, haulage rope an and haulage rope b all are in the state of straightening, behind pulling pull ring 16, haulage rope b can drive arc slider 20 and slide in spout 24.

It is worth explaining that the positioning grooves 13 are formed in the tops of the L-shaped plate 2 and the folding plate 3, threaded holes are formed in two side walls of each positioning groove 13, the side plates 4 are installed in the positioning grooves 13 through bolts, and the side plates 4 are installed on the L-shaped plate 2 or the folding plate 3 according to the required number of the screw rods.

Further, a motor 11 is fixed on one side wall of the L-shaped plate 2 through a support, a controller 10 is arranged on the side wall, and an output end of the motor 11 is rotatably connected with a main mounting shaft 14 through a rotating shaft.

The motor 11 and the resistive touch screen 5 are both electrically connected with the controller 10, and the controller 10 is a programmable controller.

The utility model discloses a theory of operation and use flow: when the utility model is used, a worker firstly rotates the folding plate 3 to be positioned on the same plane with the transverse edge of the L-shaped plate 2, the number of the required lead screws is determined according to the stroke requirement of the actual moving part to be moved, if only one lead screw is needed, the side plate 4 is fixed in the positioning groove 13 on the L-shaped plate 2 through the bolt, and then the main lead screw rod piece 8 is rotatably arranged between the L-shaped plate 2 and the side plate 4 through the bearing;

if two screw rods are needed, the pulling rope a and the pulling rope b are pulled through the pulling ring 16, the four arc-shaped sliders 20 are respectively slid into the four sliding grooves 24, the main mounting shaft 14 on the annular column 19 is horizontally taken down, then one end of the auxiliary rod 22 is horizontally sleeved outside the annular column 19 in a sliding manner, in the sliding process, the four arc-shaped sliders 20 are respectively compressed into the four sliding grooves 24, the four springs c are all in a compressed state, after the auxiliary rod 22 contacts the main rod 15, each arc-shaped slider 20 is ejected into one limiting groove 18 by one spring c, splicing of the main rod 15 and the auxiliary rod 22 is completed, the side plate 4 is mounted in the positioning groove 13 on the folding plate 3, and the rod assembly 6 is mounted between the L-shaped plate 2 and the side plate 4;

make motor 11's output rotate with welded main installation axle 14 through pivot and mobile jib 15 and be connected, will wait that the moving member is installed on nut 9, restart motor 11 reciprocating rotation, can make nut 9 drive moving member horizontal slip, if nut 9 is about to slide to lead screw edge, nut 9 contact movable plate 25 makes spring d contact resistance touch-sensitive screen 5 to transmission signal to controller 10 makes motor 11 stall at once, carries out the stroke protection to nut 9.

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 precision ball screw subassembly of long-life, includes mounting bracket (1), curb plate (4) and pole subassembly (6), its characterized in that: the utility model discloses a novel installation structure of a motor vehicle, including mounting bracket (1), and mounting bracket (3) including L template (2) and folded sheet (3), and folded sheet (3) rotate through the hinge and install in the tip of L template (2), curb plate (4) are installed on mounting bracket (1) through the bolt, pole subassembly (6) rotate to be installed between L template (2) and curb plate (4), pole subassembly (6) include main silk pole piece (8) and vice silk pole piece (7), the outside of main silk pole piece (8) is closed the cover soon through the screw thread and is equipped with nut (9), main silk pole piece (8) include mobile jib (15) and two main installation axles (14), one of them main installation axle (14) welds in the one end of mobile jib (15), and the welding has annular post (19) on the other end inner wall of mobile jib (15), vice silk pole piece (7) include vice pole (22) and vice installation axle (23), and vice installation axle (23) weld in the one end of vice pole (22), four limiting grooves (18) are formed in an array mode on the inner wall of one end, far away from the auxiliary mounting shaft (23), of the auxiliary rod (22) and the inner wall of one main mounting shaft (14), four arc-shaped sliding blocks (20) are arranged on the side wall of the annular column (19) in a sliding mode, the four arc-shaped sliding blocks (20) are distributed in an array mode, and each arc-shaped sliding block (20) is matched with one limiting groove (18).

2. The long life precision ball screw assembly of claim 1, wherein: the utility model discloses a resistance touch screen, including L template (2), curb plate (4), L template (2) and curb plate (4), the perpendicular limit of L template (2) all inlays with the inside of curb plate (4) and is equipped with resistance touch screen (5), all weld on the perpendicular limit of L template (2) and a lateral wall of curb plate (4) has two stopper (12), and all slides in stopper (12) on L template (2) and curb plate (4) and be provided with movable plate (25), every the one end of movable plate (25) all is connected with spring d, and every spring d all with a resistance touch screen (5) elastic contact.

3. The long life precision ball screw assembly of claim 1, wherein: the welding has locating piece (21) on the inner wall of annular post (19), and locating piece (21) are the cross, spout (24) have all been seted up to four tip of locating piece (21), every the one end of arc slider (20) all sets up in a spout (24) to be connected with spring c with the deepest of spout (24).

4. A long life precision ball screw assembly as set forth in claim 3 wherein: limiting plates (17) are welded on the inner wall of the main rod (15), pull rings (16) are arranged on one side wall of each limiting plate (17), each traction rope b is connected to one end of each arc-shaped sliding block (20), the four traction ropes b are gathered at one point, and a traction rope a is connected between the point and each pull ring (16).

5. The long life precision ball screw assembly of claim 1, wherein: constant head tank (13) have all been seted up at the top of L template (2) and folded sheet (3), and all seted up threaded hole on the both sides wall of constant head tank (13), curb plate (4) are installed in constant head tank (13) through the bolt.

6. The long life precision ball screw assembly of claim 1, wherein: a motor (11) is fixed on one side wall of the L-shaped plate (2) through a support, a controller (10) is arranged on the side wall, and the output end of the motor (11) is rotatably connected with a main mounting shaft (14) through a rotating shaft.