Full-automatic ball nut steel ball assembling machine

Abstract

The utility model belongs to the technical field of transmission devices, and discloses a full-automatic ball nut steel ball assembling machine which is characterized in that a driving assembly drives a screw rod to drive a deflector rod to spirally ascend or descend in the axial direction of the deflector rod so as to extend into or out of a screw hole of a ball nut, and balls are poked into a spiral groove of the ball nut through a poking piece so that the balls can be fully distributed in the spiral groove. According to the full-automatic ball nut and steel ball assembling machine, the working efficiency and the load capacity of the ball screw are improved, the ball can be automatically installed in a spiral groove of the ball nut, manual operation is reduced, the automation degree is high, and the installation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission devices, in particular to a full-automatic ball nut ball equipment machine. Background Technique

[0002] The ball screw is a common mechanical transmission device, which is widely used in various fields such as numerical control machine tools, manipulators, automated machining centers, and medical equipment. The ball screw has higher transmission efficiency and longer service life. It can not only improve the accuracy and stability of the equipment, but also reduce energy consumption and maintenance costs. Therefore, in modern mechanical manufacturing, the ball screw has become an indispensable important component.

[0003] The structure of the ball screw includes three main components: the screw rod, the ball nut, and the balls. The ball nut is internally provided with a spiral groove. The balls are closely attached between the screw rod and the ball nut and roll along the spiral groove to transmit and convert force, thereby realizing linear or rotational motion. It can be seen that a reasonable ball distribution can reduce the uneven load phenomenon between the balls and improve the working efficiency and load capacity of the ball screw.

[0004] In the prior art, when installing the balls, it is usually necessary to put the spiral jig on the ball nut. After putting the balls into the ball nut, manually use a steel bar to stir. After the balls enter the spiral groove for one circle, rotate the spiral jig, and continue to manually use the steel bar to stir until the spiral groove of the ball nut is filled with balls. Thus, it can be seen that the existing installation method has problems such as low installation efficiency and high labor intensity. Content of the Utility Model

[0005] The purpose of the utility model is to provide a full-automatic ball nut ball equipment machine with high automation degree and high installation efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A full-automatic ball nut ball equipment machine for installing a ball screw, the ball screw including a ball nut and balls, comprising:

[0008] A positioning plate, the ball nut being fixed to the positioning plate;

[0009] An installation component, the installation component including a spiral rod and a dial rod. One end of the dial rod is connected to the other end of the spiral rod, and the axis of the dial rod coincides with the axis of the spiral rod and passes through the center of the hole of the ball nut. The other end of the dial rod is provided with a dial piece along its radial direction;

[0010] A driving assembly, the output end of the driving assembly is connected to one end of the screw rod, and the driving assembly is used to drive the screw rod to drive the shifting rod to spiral up or down along its axis so as to extend into or out of the screw hole of the ball nut, so that the shifting piece can dial the balls into the spiral groove of the ball nut.

[0011] Preferably, the diameter of the bottom of the shifting rod is smaller than the diameter of the top of the shifting rod. The mounting assembly further includes a bushing, the bushing is sleeved on the bottom of the shifting rod, and one end of the bushing is circumferentially abutted against the other end of the screw rod. The linear distance between the side wall of the bushing and the bottom of the spiral groove is equal to the diameter of the ball.

[0012] Preferably, the bushing can cover the spiral groove of the ball nut.

[0013] Preferably, one end of the shifting rod is provided with a plug-in part, and the other end of the screw rod is provided with a clamping part, and the plug-in part is clamped in the clamping part.

[0014] Preferably, the plug-in part is an X-shaped block, and the clamping part is an X-shaped groove matching the X-shaped block.

[0015] Preferably, the driving assembly includes a driving member and a driving rod. One end of the driving rod is connected to the output end of the driving member, and the other end of the driving rod is connected to one end of the screw rod, and the axis of the driving rod coincides with the axis of the screw rod.

[0016] Preferably, the mounting assembly further includes a connecting sleeve, and the other end of the driving rod and one end of the screw rod are both inserted into the connecting sleeve.

[0017] Preferably, the mounting assembly further includes a bearing, the bearing is arranged in the connecting sleeve, and one end of the screw rod is inserted into the bearing.

[0018] Preferably, the full-automatic ball nut steel ball equipment machine further includes a mounting frame, the mounting frame includes a top plate, a bottom plate and a plurality of spaced struts, the top plate and the bottom plate are arranged opposite to each other, the struts connect the top plate and the bottom plate, the positioning plate is arranged above the top plate, and the driving member is mounted on the bottom plate.

[0019] Preferably, the full-automatic ball nut steel ball equipment machine further includes a guiding nut, the guiding nut is inserted into the top plate, the center of the hole of the guiding nut is aligned with the center of the hole of the ball nut, and the screw rod is screwed into the screw hole of the guiding nut.

[0020] Advantages of the present utility model: The present utility model provides a fully automatic ball nut ball loading machine. The driving assembly drives the screw rod to drive the lever to spiral upward or downward along its axis to extend into or out of the screw hole of the ball nut, and the balls are pushed into the spiral groove of the ball nut through the paddle, so that the spiral groove is filled with balls, improving the working efficiency and load capacity of the ball screw. Moreover, the fully automatic ball nut ball loading machine provided by the present utility model can automatically install the balls into the spiral groove of the ball nut, reducing manual operation, having a high degree of automation and high installation efficiency. Brief Description of the Drawings

[0021] Figure 1 is an assembly schematic diagram of a ball nut and a fully automatic ball nut ball loading machine provided by an embodiment of the present utility model Figure 1 ;

[0022] Figure 2 is an assembly schematic diagram of a ball nut and a fully automatic ball nut ball loading machine provided by an embodiment of the present utility model Figure 2 ;

[0023] Figure 3 is an assembly schematic diagram of a ball nut and a fully automatic ball nut ball loading machine provided by an embodiment of the present utility model Figure 3 ;

[0024] Figure 4 is a structural schematic diagram of the lever provided by an embodiment of the present utility model;

[0025] Figure 5 is a structural schematic diagram of the screw rod provided by an embodiment of the present utility model;

[0026] Figure 6 is an assembly schematic diagram of the bushing, the ball nut and the balls provided by an embodiment of the present utility model.

[0027] In the figure:

[0028] 10, balls; 20, ball nut; 201, spiral groove; 1, positioning plate; 21, top plate; 22, bottom plate; 23, support rod; 31, lever; 311, paddle; 312, plug-in member; 32, screw rod; 321, clamping member; 33, bushing; 34, connecting sleeve; 35, bearing; 4, guiding nut; 51, driving member; 52, driving rod. Detailed Embodiment

[0029] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings rather than all the structures.

[0030] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the", and "on the" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the", and "under the" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] In the prior art, the method of installing balls into the spiral groove of a ball nut has problems such as low installation efficiency and high labor intensity. Therefore, this embodiment provides a fully automatic ball nut ball loading machine, which can automatically install balls into the spiral groove of the ball nut, reduce manual operation, has a high degree of automation, and high installation efficiency.

[0034] A fully automatic ball nut ball loading machine of this embodiment is used for the installation of a ball screw. The ball screw includes a ball nut, a screw rod, and balls. The ball nut is internally provided with a spiral groove. The balls are loaded into the spiral groove and are closely attached between the screw rod and the ball nut. The balls roll along the spiral groove to transmit and convert force. This embodiment is specifically used to install balls into the spiral groove so that the spiral groove is filled with balls, improving the working efficiency and load capacity of the ball screw.

[0035] Specifically, please refer to Figure 1, the ball screw includes a positioning plate 1, a mounting assembly, and a driving assembly. The positioning plate 1 is used to fix the ball nut 20, and the driving assembly is used to drive the mounting assembly to spiral up or spiral down to load the balls 10 into the spiral groove 201 of the ball nut 20.

[0036] Exemplarily, please refer to Figures 1 - 3 , a fully automatic ball nut ball equipment machine of this embodiment further includes a mounting frame to improve stability. The mounting frame includes a top plate 21, a bottom plate 22, and a plurality of spaced struts 23. Specifically, the top plate 21 and the bottom plate 22 are arranged opposite to each other, and the plurality of struts 23 are all connected between the top plate 21 and the bottom plate 22.

[0037] The positioning plate 1 is arranged above the top plate 21. Optionally, the positioning plate 1 is erected on the top plate 21 through a plurality of spaced connecting rods, and the positioning plate 1 and the top plate 21 are arranged opposite to each other.

[0038] Further, the positioning plate 1 is provided with a positioning groove, and the ball nut 20 is clamped in the positioning groove. Please refer to Figures 1 - 3 , in this embodiment, the ball nut 20 is placed upright, that is, the neck is upward, to improve the stability of the ball nut 20, ensure that the ball nut 20 does not shake during the installation of the balls 10, and improve the installation accuracy. In other feasible embodiments, the ball nut 20 can also be placed upside down, that is, the neck is downward, and the shape of the positioning groove is adaptively adjusted so that the neck of the ball nut 20 is clamped in the positioning groove.

[0039] Still further, the mounting assembly includes a dial rod 31 and a screw rod 32. It should be noted that the top of the dial rod 31 can block the screw hole of the ball nut 20. During the preparation period, please refer to Figure 1 , first control the top of the dial rod 31 to block the screw hole of the ball nut 20, and then put an appropriate number of balls 10 into it. One end of the dial rod 31 is connected to the other end of the screw rod 32, and the axis of the dial rod 31 coincides with the axis of the screw rod 32, and the axis of the dial rod 31 and the axis of the screw rod 32 both pass through the center of the hole of the ball nut 20 to ensure that the dial rod 31 can evenly and effectively install the balls 10 into the spiral groove 201.

[0040] Preferably, please refer to Figure 4 , the other end of the dial rod 31 is provided with a dial piece 311 to dial the balls 10 into the spiral groove 201 through the dial piece 311. Further preferably, the dial piece 311 is arranged along the radial direction of the dial rod 31. Then, during the process of the dial rod 31 spiraling up along its axial direction, the dial piece 311 can evenly dial the balls 10 into every part of the spiral groove 201 to avoid uneven load during the process of the balls 10 transmitting force.

[0041] Optionally, please refer to Figure 4 andFigure 5 A plug-in connector 312 is provided at one end of the lever 31, and a clamping connector 321 is provided at the other end of the spiral rod 32. The lever 31 is clamped in the clamping connector 321 of the spiral rod 32 through the plug-in connector 312 to realize the connection between the lever 31 and the spiral rod 32, and the lever 31 is detachable.

[0042] Preferably, in this embodiment, the plug-in connector 312 is an X-shaped block, and the clamping member 321 is an X-shaped groove, and the X-shaped groove matches the X-shaped block. By setting the plug-in connector 312 and the clamping member 321 to be cross-connected, the lever 31 can be effectively driven to move synchronously during the process of the spiral rod 32 spirally ascending or spirally descending along its axial direction, and the lever 31 can be prevented from being disengaged. In other feasible embodiments, an X-shaped groove can be provided at one end of the lever 31, and an X-shaped block can be provided at the other end of the spiral rod 32, which can also effectively drive the lever 31 to move synchronously and prevent the lever 31 from being disengaged.

[0043] Preferably, the diameter of the bottom of the lever 31 is smaller than the diameter of the top of the lever 31, see Figure 6 , and the mounting assembly also includes a sleeve 33, which is sleeved on the bottom of the lever 31, and one end of the sleeve 33 is circumferentially abutted against the other end of the spiral rod 32. Furthermore, the straight-line distance between the side wall of the sleeve 33 and the bottom of the spiral groove 201 is equal to the diameter of the ball 10, and then after the lever 311 pushes the ball 10 into the spiral groove 201, the sleeve 33 can further press the ball 10 into the spiral groove 201, thereby improving the accuracy of the position of the ball 10.

[0044] Preferably, the sleeve 33 can cover the spiral groove 201 of the ball nut 20 to achieve synchronous pressing of all the balls 10 into the spiral groove 201 .

[0045] Furthermore, a fully automatic ball nut steel ball equipping machine also includes a guide nut 4, which is inserted into the top plate 21, and the hole center of the guide nut 4 is aligned with the hole center of the ball nut 20, and the screw rod 32 is screwed into the screw hole of the guide nut 4, thereby guiding the screw rod 32 and improving the accuracy of the ball screw. Preferably, the top plate 21 is provided with a through groove, and the guide nut 4 is fixed in the through groove.

[0046] The output end of the driving assembly is connected to one end of the screw rod 32, which is used to drive the screw rod 32 to drive the lever 31 to spiral up or down along its axial direction to extend into or out of the screw hole of the ball nut 20, so that the lever 311 can push the ball 10 into the spiral groove 201 in a circumferentially balanced manner.

[0047] The driving assembly includes a driving member 51 and a driving rod 52. The driving member 51 is installed on the bottom plate 22. One end of the driving rod 52 is connected to the output end of the driving member 51. The driving member 51 is used to drive the driving rod 52 to spiral upward or downward along its axis. The other end of the driving rod 52 is connected to one end of the screw rod 32, and the axis of the driving rod 52 coincides with the axis of the screw rod 32 to drive the screw rod 32 to spiral upward or downward along its axis.

[0048] Preferably, the driving member 51 can be a servo motor, and the length of the driving rod 52 is adjusted according to actual requirements.

[0049] Furthermore, the installation assembly further includes a connecting sleeve 34 for connecting the driving rod 52 and the screw rod 32. The other end of the driving rod 52 and one end of the screw rod 32 are both inserted into the connecting sleeve 34.

[0050] Still further, the installation assembly further includes a bearing 35. The bearing 35 is arranged in the connecting sleeve 34, and one end of the screw rod 32 is inserted into the bearing 35 to support the rotation of the screw rod 32 and ensure its rotation accuracy. The bottom size of the connecting sleeve 34 is smaller than its top size. On the one hand, it is convenient to clamp the driving rod 52, and on the other hand, it is convenient to place the bearing 35.

[0051] A fully automatic ball nut ball equipment machine provided by this embodiment drives the driving rod 52 through the driving member 51 to drive the screw rod 32 and the dial rod 31 to spiral upward or downward along their axes to extend into or out of the screw hole of the ball nut 20, and the balls 10 are dialed into the spiral groove 201 of the ball nut 20 through the dial piece 311, so that the balls 10 are filled in the spiral groove 201, improving the working efficiency and load capacity of the ball screw. A fully automatic ball nut ball equipment machine provided by this embodiment can automatically install the balls 10 into the spiral groove 201 of the ball nut 20, reducing manual operation, having a high degree of automation, and high installation efficiency.

[0052] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A fully automatic ball nut steel ball assembly machine for installing a ball screw, wherein the ball screw comprises a ball nut (20) and a ball (10), characterized in that: include: A positioning plate (1), the ball nut (20) being fixed to the positioning plate (1); An installation assembly, the installation assembly comprising a screw rod (32) and a lever (31), one end of the lever (31) being connected to the other end of the screw rod (32), and the axis of the lever (31) coincides with the axis of the screw rod (32) and passes through the hole center of the ball nut (20), and the other end of the lever (31) is provided with a lever (311) along its radial direction; A driving assembly, wherein the output end of the driving assembly is connected to one end of the screw rod (32), and the driving assembly is used to drive the screw rod (32) to drive the lever (31) to spirally rise or spirally descend along its axial direction to extend into or extend out of the screw hole of the ball nut (20), so that the lever (311) can push the ball (10) into the spiral groove (201) of the ball nut (20).

2. The fully automatic ball nut steel ball equipping machine according to claim 1, characterized in that: The diameter of the bottom of the lever (31) is smaller than the diameter of the top of the lever (31). The mounting assembly further comprises a shaft sleeve (33), which is sleeved on the bottom of the lever (31) and one end of which is circumferentially abutted against the other end of the spiral rod (32). The straight-line distance between the side wall of the shaft sleeve (33) and the bottom of the spiral groove (201) is equal to the diameter of the ball (10).

3. The fully automatic ball nut steel ball equipping machine according to claim 2, characterized in that: The shaft sleeve (33) is capable of covering the spiral groove (201) of the ball nut (20).

4. The fully automatic ball nut steel ball equipping machine according to claim 1, characterized in that: One end of the shifting rod (31) is provided with a plug-in connector (312), the other end of the spiral rod (32) is provided with a clamping connector (321), and the plug-in connector (312) is clamped on the clamping connector (321).

5. The fully automatic ball nut steel ball equipping machine according to claim 4, characterized in that: The plug-in connector (312) is an X-shaped block, and the clamping connector (321) is an X-shaped groove matching the X-shaped block.

6. The fully automatic ball nut steel ball equipping machine according to claim 1, characterized in that: The driving assembly comprises a driving member (51) and a driving rod (52), one end of the driving rod (52) is connected to the output end of the driving member (51), the other end of the driving rod (52) is connected to one end of the spiral rod (32), and the axis of the driving rod (52) coincides with the axis of the spiral rod (32).

7. The fully automatic ball nut steel ball equipping machine according to claim 6, characterized in that: The installation assembly also includes a connecting sleeve (34), and the other end of the driving rod (52) and one end of the spiral rod (32) are both inserted into the connecting sleeve (34).

8. The fully automatic ball nut steel ball equipping machine according to claim 7, characterized in that: The mounting assembly further comprises a bearing (35), wherein the bearing (35) is arranged in the connecting sleeve (34), and one end of the spiral rod (32) is inserted into the bearing (35).

9. The fully automatic ball nut steel ball equipping machine according to claim 6, characterized in that: The fully automatic ball nut steel ball equipping machine also includes a mounting frame, the mounting frame includes a top plate (21), a bottom plate (22) and a plurality of spaced support rods (23), the top plate (21) and the bottom plate (22) are arranged opposite to each other, the support rods (23) connect the top plate (21) and the bottom plate (22), the positioning plate (1) is arranged above the top plate (21), and the driving member (51) is installed on the bottom plate (22).

10. The fully automatic ball nut steel ball equipping machine according to claim 9, characterized in that: The fully automatic ball nut steel ball equipping machine also includes a guide nut (4), the guide nut (4) is inserted into the top plate (21), the hole center of the guide nut (4) is directly opposite to the hole center of the ball nut (20), and the screw rod (32) is screwed into the screw hole of the guide nut (4).

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