Auxiliary installation tool for lead screw nut ball

Abstract

The utility model discloses a lead screw nut ball auxiliary installation tool which comprises a circulator clamping block and a circulator clamp pressing block, the circulator clamping block is movably connected with the circulator clamp pressing block, a through groove is further formed in the position, close to a circulator, of the circulator clamping block, the through groove is matched with the circulator in shape, and the circulator clamp pressing block is movably connected with the circulator clamping block. The circulator and the through groove are provided with a space used for containing the balls, and the circulator clamp pressing block is used for applying pressure to the circulator to clamp the circulator.

Description

Technical Field

[0001] The utility model belongs to the processing field of tools for installing ball bearings, and particularly relates to a ball screw nut ball auxiliary installation tool. Background Technique

[0002] A ball screw nut is a high-precision mechanical transmission device, which consists of a ball screw and a nut. The ball screw has a precision-machined spiral groove, and the nut has a matching raceway inside, and balls are installed between the two. These balls roll between the spiral groove and the raceway, thereby converting the rotational motion into a linear motion.

[0003] The ball screw nut also has a circulator. The circulator in the ball screw nut is a key component, which is used to realize the circulation of the balls in the system to ensure that the balls continuously roll between the nut and the screw, so as to achieve efficient and stable transmission.

[0004] The ball circulator is an important component in the ball screw nut, which is responsible for guiding the balls to circulate inside the nut. Its main function is to guide the balls back to the starting position when they roll from one end of the spiral groove to the other end, forming a closed circulation path to ensure that the balls can continuously roll without falling out of the raceway.

[0005] A common circulator is an end cap type circulator, that is, end caps are installed at both ends of the nut, and a ball return path is provided inside. When the balls reach the end caps, they are guided into the return channel and returned to the starting position of the nut. However, currently, when installing the balls and the circulator, usually an operator manually installs the end cap circulator at both ends of the ball nut. Use a suitable tool to ensure that the end cap circulator is firmly fixed. Then, the balls are placed into the raceway of the ball nut one by one. Each time a ball is placed, the ball screw is gently rotated to ensure that the ball correctly enters the raceway. The operation is complex and labor-consuming. Content of the Utility Model

[0006] The purpose of the utility model is to provide a ball screw nut ball auxiliary installation tool to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A ball screw nut ball auxiliary installation tool includes a circulator clamping block and a circulator clamp pressing block. The circulator clamping block is movably connected to the circulator clamp pressing block. A through groove is further opened at a position of the circulator clamping block close to the circulator. The through groove is adapted to the shape of the circulator. A space for placing balls is provided between the circulator and the through groove. The circulator clamp pressing block is used to apply pressure to the circulator to clamp the circulator.

[0009] Further technical solution: A groove is formed on the surface of the circulator clamping block, and the groove communicates with the through groove. The circulator clamp pressing block is located in the groove, and the circulator clamp pressing block can slide relative to the groove wall.

[0010] Further technical solution: One end of the circulator clamp pressing block close to the circulator is provided with an avoidance position, and the side surface of the circulator clamp pressing block in contact with the circulator is adapted to the circulator.

[0011] Further technical solution: The circulator clamp pressing block is provided with a first magnetic attraction groove facing the circulator clamping block, and the circulator clamping block is provided with a second magnetic attraction groove facing the circulator clamp pressing block. The first magnetic attraction groove communicates with the second magnetic attraction groove. A first magnet is fixedly arranged on the groove wall of the first magnetic attraction groove, and a second magnet is fixedly arranged on the groove wall of the second magnetic attraction groove.

[0012] Further technical solution: The circulator clamp pressing block includes an arc portion and a pushing portion. The upper surface of the arc portion is an arc surface, and the pushing portion is provided with anti-slip lines.

[0013] Further technical solution: The curvature of the upper surface of the arc portion is the same as the curvature of the hollow cylinder of the nut seat.

[0014] Further technical solution: The end area of the end of the pushing portion far from the arc portion is larger than the end area of the end of the pushing portion close to the arc portion.

[0015] Further technical solution: The connection between the end of the pushing portion far from the arc portion and the end of the pushing portion close to the arc portion is designed in an arc shape, and the groove wall of the groove is correspondingly arranged.

[0016] Advantages of the present utility model:

[0017] By using the through groove corresponding to the circulator on the circulator clamping block, first place the ball and the circulator in the through groove, then slide the circulator clamp pressing block to clamp the circulator, extend the circulator clamp pressing block and the circulator clamping block out of the nut seat, embed the circulator into the placement position opened on the side surface of the nut seat for placing the circulator, align the circulator with the placement position, then slide the circulator clamp pressing block to release the circulator, and take out the circulator clamping block and the circulator clamp pressing block, so as to realize the easy and simple installation of the ball onto the nut seat by using this auxiliary installation tool.

[0018] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0019] Figure 1 : Schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 : Enlarged view of part A of the present utility model Figure 1

[0021] Figure 3 : Schematic diagram of the overall structure of the present utility model assembled with the circulator

[0022] Figure 4 : Diagram of the inversion process of the present utility model

[0023] Figure 5 : Exploded view of the overall structure of the present utility model, the circulator and the ball

[0024] Figure 6 : Cross-sectional view of the overall structure of the present utility model, the circulator and the ball

[0025] Reference numerals in the drawings: 1, circulator; 2, ball; 3, circulator clamping block; 4, circulator clamp pressing block; 5, through groove; 6, groove; 7, avoidance position; 8, first magnetic attraction groove; 9, second magnetic attraction groove; 10, arc portion; 11, pushing portion; 12, anti-slip pattern Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model

[0027] Please refer to Figures 1-6 ;

[0028] A screw-nut ball auxiliary installation tool is used to install the circulator 1 and the ball 2 at the side placement position of the nut seat of the screw-nut. It should be noted that this embodiment mainly focuses on the end-cap circulator 1, especially the built-in end-cap circulator 1. In this embodiment, the screw-nut ball auxiliary installation tool includes a circulator clamping block 3 and a circulator clamp pressing block 4. The circulator clamping block 3 and the circulator clamp pressing block 4 are slidably connected, and the length directions of the circulator clamping block 3 and the circulator clamp pressing block 4 are the same. The circulator clamping block 3 and the circulator clamp pressing block 4 can slide along their length directions. A through groove 5 is also provided at the position where the circulator clamping block 3 is close to the circulator 1. The through groove 5 is adapted to the shape of the circulator 1, that is, the circulator 1 can be placed in the through groove 5. The opening direction of the through groove 5 is perpendicular to the length direction of the circulator clamping block 3. A placement space for placing the ball 2 is formed between the circulator 1 and the bottom of the through groove 5. When the circulator 1 is placed in the through groove 5, the circulation pipeline of the circulator 1 is adapted to both sides of the through groove 5, so that the ball 2 in the placement space can be kept in the placement space. The circulator clamp pressing block 4 is used to apply pressure to the circulator 1 and fix the circulator 1 with the groove wall of the through groove 5

[0029] ​Specifically, when an operator uses the screw-nut ball auxiliary installation tool in this embodiment to install the built-in end cap circulator 1 and the ball 2, first place a suitable ball 2 on the through groove 5. At this time, the position of the ball 2 needs to be noted. Orient the channel part of the circulator 1 to be installed towards the through groove 5, and install the circulator 1 into the placement groove. At this time, a placement space is formed between the circulator 1 and the bottom of the through groove 5, which limits the position of the ball 2. Press the other end of the circulator 1 by sliding the circulator clamp block 4. Thus, the circulator 1 is clamped by the circulator clamping block 3 and the circulator clamp block 4. Insert the circulator clamp block 4 and the circulator clamping block 3 that clamp the circulator 1 into the nut seat, place the circulator 1 at the corresponding placement position of the nut seat, invert the circulator clamping block 3, the circulator clamp block 4 and the nut seat, and then pass the screw through the other end of the nut seat. Slowly slide the circulator clamp block 4 away from the circulator 1, so that the circulator 1 is separated from the circulator clamp block 4 and the circulator clamping block 3. Remove the circulator clamping block 3 and the circulator clamp block 4. Under the action of gravity, the positions of the circulator 1 and the ball 2 remain unchanged. The screw slowly passes through the nut seat, so that the spiral groove 1 of the screw and the spiral groove 2 of the nut seat form a new space for placing the ball 2 to fix the ball 2. Thus, the operator completes the installation of the built-in end cap circulator 1 and the ball 2 by using the screw-nut ball auxiliary installation tool.

[0030] Further, in order to improve the convenience of the operator using the screw-nut ball auxiliary installation tool in this embodiment, a groove 6 is formed on the surface of the circulator clamping block 3. The opening direction of the groove 6 is vertically upward, the length direction of the groove 6 is the same as the length direction of the circulator clamping block 3, the groove 6 communicates with the through groove 5, the shape of the groove 6 corresponds to that of the circulator clamp block 4, the circulator clamp block 4 is located in the groove 6, and the circulator clamp block 4 can slide relative to the groove wall of the groove 6. An avoidance position 7 is provided at one end of the circulator clamp block 4 close to the circulator 1. That is, when the circulator clamp block 4 contacts the circulator 1 to clamp the circulator 1, there is an avoidance position 7 between the circulator clamp block 4 and the groove wall of the groove 6. That is, when the circulator clamp block 4 has not contacted the groove wall of the groove 6, the circulator clamp block 4 has already contacted the side surface of the circulator 1. That is, the circulator clamp block 4 and the circulator clamping block 3 have clamped the circulator 1. At the same time, the side surface of the circulator clamp block 4 in contact with the circulator 1 is adapted to the circulator 1, so that the circulator clamp block 4 and the clamping block can better clamp the circulator 1.

[0031] In other embodiments, the circulator fixture pressing block 4 may be slidably connected to the circulator clamping block 3. In this embodiment, in order to make the screw-nut ball auxiliary installation tool better integrated into the overall structure and ensure a more stable connection between the circulator fixture pressing block 4 and the circulator clamping block 3 when inverted, a first magnetic attraction groove 8 is formed on the side of the circulator fixture pressing block 4 facing the circulator clamping block 3, and a second magnetic attraction groove 9 is formed on the circulator clamping block 3 facing the circulator fixture pressing block 4. The first magnetic attraction groove 8 communicates with the second magnetic attraction groove 9, and the first magnetic attraction groove 8 and the second magnetic attraction groove 9 form a space for connecting the circulator fixture pressing block 4 and the circulator clamping block 3. A first magnet is provided on the groove wall of the first magnetic attraction groove 8, and a second magnet is provided on the groove wall of the second magnetic attraction groove 9. The first magnet and the second magnet have opposite magnetic polarities, causing the first magnet and the second magnet to attract each other magnetically.

[0032] It should be noted that in this embodiment, the number of the first magnetic attraction grooves 8 and the second magnetic attraction grooves 9 is not limited. Correspondingly, the number of the first magnets and the second magnets is also not limited. In other embodiments, the magnetic attraction correspondence can be achieved by using the first magnets and magnetic metals.

[0033] The specific shape of the circulator fixture pressing block 4 of the present utility model is not limited. To further improve the usability of the screw-nut ball auxiliary installation tool, preferably, the circulator fixture pressing block 4 in this embodiment includes an arc portion 10 and a pushing portion 11. The arc portion 10 and the pushing portion 11 may be threadedly connected or integrally formed, which is not limited herein. The upper surface of the arc portion 10 is an arc surface, and anti-slip lines 12 are provided on the pushing portion 11. The curvature of the upper surface of the arc portion 10 is the same as the curvature of the hollow cylinder of the nut seat. The end area of the end of the pushing portion 11 away from the arc portion 10 is larger than the end area of the end of the pushing portion 11 close to the arc portion 10, and the connection between the end of the pushing portion 11 away from the arc portion 10 and the end of the pushing portion 11 close to the arc portion 10 is designed to be arc-shaped, and the groove wall of the groove 6 is correspondingly designed to be arc-shaped.

[0034] Specifically, when the operator is using it, an anti-slip pattern 12 is provided on the pushing part 11 of the circulator fixture pressing block 4, which enables the operator to better slide the circulator clamping block 3, so that the circulator clamping block 3 can clamp the circulator 1 more tightly. After the operator pushes the pushing part 11 to clamp the circulator 1, the circulator clamping block 3 and the circulator fixture pressing block 4 are inserted into the nut seat. The arc part 10 of the circulator fixture pressing block 4 can better fit the inner cavity of the nut seat, making the screw-nut ball auxiliary installation tool more stable, and further enabling the circulator 1 to be better placed on the placement position on the side of the nut seat. At the same time, the end area of the end of the pushing part 11 far from the arc part 10 is larger than the end area of the end of the pushing part 11 close to the arc part 10. The connection between the end of the pushing part 11 far from the arc part 10 and the end of the pushing part 11 close to the arc part 10 is designed to be arc-shaped. The groove wall of the groove 6 is correspondingly designed to be arc-shaped, so that when the operator fully pushes the circulator fixture pressing block 4, the end of the pushing part 11 far from the arc part 10 will be stuck on the groove wall of the groove 6, ensuring that the end of the circulator fixture pressing block 4 in contact with the circulator 1 will not damage the circulator. After the circulator 1 is installed, first invert the circulator fixture pressing block 4 and the circulator clamping block 3. The circulator fixture pressing block 4 can be kept stable with the circulator clamping block 3 under the magnetic attraction connection of the first magnet and the second magnet.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ball-assisted installation tool for a screw nut, characterized in that: The invention comprises a circulator clamping block (3) and a circulator clamping block (4), wherein the circulator clamping block (3) and the circulator clamping block (4) are movably connected, and a through groove (5) is provided at a position of the circulator clamping block (3) close to the circulator (1), wherein the through groove (5) is adapted to the shape of the circulator (1), and the circulator (1) and the through groove (5) are provided with a space for placing a ball (2), and the circulator clamping block (4) is used to apply pressure to the circulator (1) to clamp the circulator (1).

2. A screw nut ball auxiliary installation tool according to claim 1, characterized in that: A groove (6) is provided on the surface of the circulator clamping block (3), the groove (6) is communicated with the through groove (5), the circulator clamp pressing block (4) is located in the groove (6), and the circulator clamp pressing block (4) can slide relative to the groove wall of the groove (6).

3. The ball-assisted installation tool for a screw nut according to claim 1, characterized in that: An end of the circulator clamp pressing block (4) close to the circulator (1) is provided with an avoidance position (7), and the side of the circulator clamp pressing block (4) in contact with the circulator (1) is adapted to the circulator (1).

4. The ball-assisted installation tool for a screw nut according to claim 2, characterized in that: The circulator clamp pressing block (4) is provided with a first magnetic attraction groove (8) toward the circulator clamping block (3), and the circulator clamping block (3) is provided with a second magnetic attraction groove (9) toward the circulator clamp pressing block (4). The first magnetic attraction groove (8) is connected to the second magnetic attraction groove (9), and a first magnet is fixedly provided on the groove wall of the first magnetic attraction groove (8), and a second magnet is fixedly provided on the groove wall of the second magnetic attraction groove (9).

5. The ball-assisted installation tool for a screw nut according to claim 2, characterized in that: The circulator clamp pressing block (4) comprises an arc portion (10) and a push handle portion (11); the upper surface of the arc portion (10) is an arc surface, and the push handle portion (11) is provided with anti-slip grooves (12).

6. The ball-assisted installation tool for a screw nut according to claim 5, characterized in that: The curvature of the upper surface of the arc portion (10) is the same as the curvature of the hollow cylinder of the nut seat.

7. The ball-assisted installation tool for a screw nut according to claim 5, characterized in that: The end area of ​​the push handle portion (11) away from the circular arc portion (10) is larger than the end area of ​​the push handle portion (11) close to the circular arc portion (10).

8. The ball-assisted installation tool for a screw nut according to claim 5, characterized in that: The connection between the end of the push handle portion (11) away from the arc portion (10) and the end of the push handle portion (11) close to the arc portion (10) is designed to be arc-shaped, and the groove wall of the groove (6) is correspondingly arranged.

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