Returning device convenient to install and used for ball screw

Abstract

The utility model discloses a ball screw reverser convenient to install, relates to the technical field of ball screw nut reversers, and aims to solve the problems that an existing reverser installed from outside to inside needs to be adhered through glue, a reverser installed from inside to outside cannot be effectively fixed, the reverser and a nut are matched loosely, and the reverser cannot be fixed effectively. According to the key points of the technical scheme, the reversing device comprises a reversing device body, a ball guide groove is formed in one side face of the reversing device body, and two inward deformation grooves are formed in the two symmetrical side edges of one side face of the reversing device body correspondingly; two limiting end blocks are integrally connected to the outer surface of one side of the reverser body, and inclined guide faces are arranged at the ends of the limiting end blocks. And the effects that clamping and fixing can be rapidly and conveniently achieved, installation convenience is high, and meanwhile self-lubricating operation can be conducted on the balls are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball screw nut return device technical field, especially a ball screw nut return device convenient to install. BACKGROUND

[0002] Ball screw is the most commonly used transmission element in tooling machinery and precision machinery, its main function is to convert rotary motion into linear motion, or convert torque into axial repeated force, at the same time, it has the characteristics of high precision, reversibility and high efficiency, and is widely used in contemporary equipment, ball screw mainly reduces friction through the rolling of ball, in order to ensure the continuous and stable rolling of ball, return device is installed in the raceway for adjusting the rolling direction and line of ball, so that the ball can continuously roll.

[0003] The existing return device installed from outside to inside needs to use glue to stick, the return device installed from inside to outside cannot be effectively fixed, the return device and the nut are loose, the smoothness is not good when the screw rod moves at high speed, and the installation convenience needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model discloses a ball screw nut return device convenient to install can be clamped and fixed quickly and conveniently, has high installation convenience, and can perform self-lubricating operation on the ball.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A ball screw nut return device convenient to install, including return device main part, the one side of return device main part is provided with ball guide groove, the symmetrical both sides of the one side of return device main part are provided with two inward deformation grooves respectively, the one side outer surface of return device main part is integrally connected with two limit end blocks, the end of limit end block is provided with inclined guide surface, the symmetrical both ends positions of the one side of return device main part are integrally connected with a limit convex edge respectively.

[0007] Through the above technical scheme, flexible and convenient installation operation can be realized, and subsequent maintenance operation can be facilitated.

[0008] Further, the inner wall of the ball guide groove is provided with an oil outlet hole, a steel ball is installed in the oil outlet hole, part of the end of the steel ball protrudes and is placed in the ball guide groove.

[0009] Through the above technical scheme, the steel ball can be used for oil outlet linkage operation.

[0010] Further, the one side outer surface of the return device main part is provided with a mounting hole, a pressure cavity is arranged in the mounting hole, and the oil outlet hole and the pressure cavity are in communication.

[0011] By adopting the technical scheme, stable and effective oil discharging operation can be performed.

[0012] Further, an end cover seat is threadedly installed in a mounting hole on the reverser body side surface, one end of the end cover seat is blocked at the port of the pressure cavity, one end of the end cover seat is provided with a pressing oil discharger, the pressing oil discharger is located inside the pressure cavity, and one end of the pressing oil discharger abuts against the arc point position of the steel ball.

[0013] By adopting the technical scheme, the steel ball can be used to link and press the pressing oil discharger to discharge oil.

[0014] Further, an oil storage bottle is threadedly installed at one end of the end cover seat, an oil guide hose is fixedly installed at an oil inlet end of the pressing oil discharger, a gravity ball is installed at one end of the oil guide hose, and the oil guide hose and the gravity ball are both located inside the oil storage bottle.

[0015] By adopting the technical scheme, stable oil supply can be performed.

[0016] Further, an arc-shaped sliding groove is arranged on the inner wall of the pressure cavity, and the steel ball is located inside the arc-shaped sliding groove.

[0017] By adopting the technical scheme, when the steel ball is not subjected to ball top driving, the steel ball can effectively block the oil discharging hole, and when the steel ball is subjected to ball top driving, the oil discharging hole can effectively discharge oil.

[0018] In summary, the beneficial technical effects of the utility model are as follows:

[0019] 1. The utility model discloses a reverser body, a plurality of inward deformation grooves are arranged on the reverser body, limiting convex edges are arranged at the symmetrical two ends of the reverser body, and the reverser body of plastic material can be inwardly deformed directly during installation. At this time, the inward deformation grooves can provide position compensation for the inward deformation of the reverser body. Then, the reverser body after inward deformation is pressed into the mounting hole of the ball screw nut. When the inwardly deformed reverser body enters the mounting hole, the inwardly deformed part is released and can be effectively clamped and fixed in the mounting hole. The installation method can be directly installed from the outside, which replaces the traditional installation mode of the reverser from the inside to the outside, effectively improves the installation convenience, and further improves the assembly efficiency of the ball screw. Meanwhile, the reverser does not need to smear glue on the side wall during installation, which can facilitate subsequent disassembly and maintenance operation of the ball screw, and has high practicability.

[0020] 2, the utility model discloses can in the process of using, when the ball rolls in the inside of ball guide groove, the ball will extrude steel ball, because the one end of pressing oiler is pressed on steel ball, therefore, when steel ball is retracted in the inside of pressure chamber, will extrude pressing operation to pressing oiler, again because the port of pressure chamber is blocked, the lubricating oil that pressing oiler discharges enters the inside of pressure chamber when this, when the inside of pressure chamber stores enough lubricating oil, lubricating oil will overflow from oil outlet hole, and then can effectively be applied on the ball in the inside of ball guide groove, can realize automatic lubrication operation, effectively improved the functionality and practicality of the return device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the first perspective view of three-dimensional structure of the utility model;

[0022] Figure 2 It is the second perspective view of three-dimensional structure of the utility model;

[0023] Figure 3 It is the internal structure diagram of the utility model.

[0024] In the drawing: 1, return device main part;2, ball guide groove;3, inward deformation groove;4, limit end block;5, oil outlet hole;6, steel ball;7, oil storage bottle;8, end cover seat;9, oil guide hose;10, pressing oiler;11, pressure chamber;12, limit convex edge;13, guide surface. DETAILED DESCRIPTION

[0025] The utility model method is further explained in detail below in connection with the drawings.

[0026] Refer to Figure 1 , Figure 2The utility model provides a kind of return device for ball screw convenient to install, including return device main body 1, the side surface of return device main body 1 is provided with ball guide groove 2, two inward deformation grooves 3 are respectively arranged at the symmetric two sides of the side surface of return device main body 1, two limit end blocks 4 are integrally connected on the one side outer surface of return device main body 1, the end of limit end block 4 is provided with inclined guide surface 13, one limit convex edge 12 is integrally connected at the symmetric two end positions of the side surface of return device main body 1, wherein by being provided with multiple inward deformation grooves 3 on return device main body 1, and being provided with limit convex edge 12 at the symmetric two ends of return device main body 1, when installing, the inward deformation of plastic material return device main body 1 can be directly carried out, inward deformation groove 3 can provide position compensation for the inward deformation of return device main body 1 at this time, then return device main body 1 after inward deformation is pressed into the mounting hole on ball screw nut, when inward deformation return device main body 1 enters mounting hole inward deformation part is released, the guide surface 13 of limit end block 4 can be engaged and fixed on the nut race of ball screw at this time, so that return device can be effectively engaged and fixed in mounting hole, the installation mode can be directly installed from outside inward, instead of the mode that traditional this kind of return device needs from inside outward installation, installation convenience has been effectively improved, so as to improve the assembly efficiency of ball screw, meanwhile, the return device does not need to smear glue on side wall when installing, can facilitate subsequent ball screw disassembly maintenance operation, and practicality is strong.

[0027] Reference Figure 1 , Figure 2The inner wall of the ball guide groove 2 is provided with an oil outlet hole 5, a steel ball 6 is installed in the oil outlet hole 5, part of the end of the steel ball 6 protrudes and is placed in the interior of the ball guide groove 2, a mounting hole is arranged on the outer surface of one side of the reverser body 1, a pressure cavity 11 is arranged in the interior of the mounting hole, the oil outlet hole 5 is communicated with the interior of the pressure cavity 11, a end cap seat 8 is screwed and mounted in the mounting hole on the side surface of the reverser body 1, one end of the end cap seat 8 is blocked at the port of the pressure cavity 11, a pressing oil outlet device 10 is arranged at one end of the end cap seat 8, the pressing oil outlet device 10 is located in the interior of the pressure cavity 11, and one end of the pressing oil outlet device 10 abuts against the arc point position of the steel ball 6, a oil storage bottle 7 is screwed and mounted at one end of the end cap seat 8, a oil guide hose 9 is fixedly mounted at the oil inlet end of the pressing oil outlet device 10, a gravity ball is mounted at one end of the oil guide hose 9, the oil guide hose 9 and the gravity ball are all placed in the interior of the oil storage bottle 7, an arc-shaped sliding groove is arranged on the inner wall of the pressure cavity 11, and the steel ball 6 is located in the interior of the arc-shaped sliding groove, wherein in the process of use, when the ball rolls in the interior of the ball guide groove 2, the ball will extrude the steel ball 6, since one end of the pressing oil outlet device 10 abuts against the steel ball 6, when the steel ball 6 is retracted into the interior of the pressure cavity 11, the pressing oil outlet device 10 is extruded, since the port of the pressure cavity 11 is blocked, at this time, the lubricating oil discharged by the pressing oil outlet device 10 enters the interior of the pressure cavity 11, when enough lubricating oil is stored in the interior of the pressure cavity 11, the lubricating oil will overflow from the oil outlet hole 5, thereby being effectively coated on the ball in the interior of the ball guide groove 2, automatic lubrication operation can be realized, and the functionality and practicability of the reverser are effectively improved.

[0028] Working principle: in use, the reverser is installed at a specified position, since the plurality of inward deformation grooves 3 are arranged on the reverser body 1, and the limiting protrusions 12 are arranged at the symmetrical two ends of the reverser body 1, the reverser body 1 made of plastic material can be directly deformed inward, at this time, the inward deformation grooves 3 can provide position compensation for the inward deformation of the reverser body 1, then the reverser body 1 after being deformed inward is pressed into the mounting hole on the ball screw nut, when the reverser body 1 after being deformed inward enters the mounting hole, the inward deformation part is released, can be effectively clamped and fixed in the mounting hole, after installation is completed, normal use can be realized, the ball guide groove 2 can effectively guide the plurality of balls, at the same time, when the ball rolls in the interior of the ball guide groove 2, the ball will extrude the steel ball 6, since one end of the pressing oil outlet device 10 abuts against the steel ball 6, when the steel ball 6 is retracted into the interior of the pressure cavity 11, the pressing oil outlet device 10 is extruded, since the port of the pressure cavity 11 is blocked, at this time, the lubricating oil discharged by the pressing oil outlet device 10 enters the interior of the pressure cavity 11, when enough lubricating oil is stored in the interior of the pressure cavity 11, the lubricating oil will overflow from the oil outlet hole 5, thereby being effectively coated on the ball in the interior of the ball guide groove 2, automatic lubrication operation can be realized.

[0029] The real-time examples of the specific embodiment are the preferred examples of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A return for a ball screw that is easy to install, comprising a return main body (1), characterized by: The side surface of the reverser body (1) is provided with a ball guide groove (2), the symmetric two side edges of the side surface of the reverser body (1) are respectively provided with two inward deformation grooves (3), the side outer surface of the reverser body (1) is integrally connected with two limiting end blocks (4), the end of the limiting end block (4) is provided with an inclined guide surface (13), and the symmetric two end positions of the side surface of the reverser body (1) are respectively integrally connected with a limiting convex edge (12).

2. The return according to claim 1, wherein: The inner wall of the ball guide groove (2) is provided with an oil outlet hole (5), the inside of the oil outlet hole (5) is mounted with a steel ball (6), and part of the end of the steel ball (6) protrudes and is placed in the inside of the ball guide groove (2).

3. The return according to claim 2, wherein: The side outer surface of the reverser body (1) is provided with a mounting hole, and the inside of the mounting hole is provided with a pressure cavity (11), and the oil outlet hole (5) is communicated with the inside of the pressure cavity (11).

4. The return according to claim 3, wherein: The end cover seat (8) is screw-mounted in the mounting hole on the side surface of the reverser body (1), one end of the end cover seat (8) is blocked at the port of the pressure cavity (11), one end of the end cover seat (8) is provided with a pressing oil outlet device (10), the pressing oil outlet device (10) is located in the inside of the pressure cavity (11), and one end of the pressing oil outlet device (10) abuts against the arc point position of the steel ball (6).

5. The return according to claim 4, wherein: One end of the end cover seat (8) is screw-mounted with an oil storage bottle (7), the oil inlet end of the pressing oil outlet device (10) is fixedly mounted with an oil guide hose (9), one end of the oil guide hose (9) is mounted with a gravity ball, and the oil guide hose (9) and the gravity ball are both placed in the inside of the oil storage bottle (7).

6. The return according to claim 3, wherein: The inner wall of the pressure cavity (11) is provided with an arc-shaped sliding groove, and the steel ball (6) is located in the inside of the arc-shaped sliding groove.

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