CN219235016U

CN219235016U - Nut rotary ball screw device for numerical control surface grinding machine

Info

Publication number: CN219235016U
Application number: CN202320168566.XU
Authority: CN
Inventors: 周丽湖; 杨兰红; 王轩
Original assignee: Yancheng Dafeng Kerida Machine Tool Equipment Co ltd
Current assignee: Yancheng Dafeng Kerida Machine Tool Equipment Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-23
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to a nut rotary ball screw device for a numerical control surface grinding machine, which comprises a numerical control surface grinding machine body and an electric grinding head mechanism, wherein a ball screw is fixedly connected to the middle position of the top of the electric grinding head mechanism. According to the utility model, the screw rod is arranged on the upper side of the electric grinding head mechanism, the screw rod is driven by the rotating nut to vertically move through the screw rod nut rotating device, the screw rod is subjected to tensile stress and is not easy to deform, the transmission precision of the screw rod is ensured, the screw rod does not pass through the grinding head, the screw rod is arranged at the middle position of the grinding head, the guide rail is uniformly stressed, the service life of the guide rail is prolonged, the motor synchronous belt wheel on the motor and the synchronous belt wheel arranged on the rotating nut transmit rotary motion through the synchronous belt, the defect of low repetition precision of the grinding head caused by a side gap of gear transmission is avoided, the motor is not arranged in an operation space in front of a machine tool, and the potential safety hazard is eliminated.

Description

Nut rotary ball screw device for numerical control surface grinding machine

Technical Field

The utility model relates to the technical field of machine manufacturing, in particular to a nut rotating ball screw device for a numerical control surface grinding machine.

Background

The grinding head of the current numerical control surface grinding machine is mainly lifted vertically in the following modes: 1. the screw rod nut is driven to rotate by the rotation of the right angle bevel gears below the grinding head, and the screw rod which does not rotate is pushed to vertically move by the rotation of the nut. The screw rod is arranged below the grinding head, the screw rod is stressed by compression, the screw rod has a tendency of bending, and the transmission precision is not high; the bevel gear is driven, a certain side gap is needed, and the repeated positioning accuracy of the up-and-down driving of the grinding head is not high. The motor is arranged on the operation side of the machine tool, so that the operation space of the machine tool is reduced, and certain potential safety hazards exist; 2. the screw rod passes through the grinding head, the screw rod nut is arranged on the grinding head, and the motor is arranged on the upright post above the grinding head and is directly connected with the screw rod. In order to avoid the main shaft, the screw rod is required to deviate from one side of the grinding head, the guide rails on two sides of the grinding head are stressed differently when the grinding head moves vertically, the abrasion of the guide rails is inconsistent, the service life of the grinding head is shortened, and the nut rotary ball screw device for the numerical control surface grinding machine is developed aiming at the defects of low positioning precision, short service life of the guide rails, potential safety hazards and the like in the vertical movement of the grinding head of the numerical control surface grinding machine at present.

Disclosure of Invention

The utility model provides a nut rotary ball screw device for a numerical control surface grinder, which solves the technical problems in the prior art.

The scheme for solving the technical problems is as follows: the utility model provides a nut rotation ball screw device for numerical control surface grinder, includes numerical control surface grinder main part and electronic bistrique mechanism, the top intermediate position fixedly connected with ball screw of electronic bistrique mechanism, numerical control surface grinder main part fixed mounting has the protection casing, the top fixed intercommunication of protection casing has the protection sleeve, numerical control surface grinder main part fixed mounting has step motor, step motor's top fixedly connected with drive wheel, the mounting hole is seted up at numerical control surface grinder main part's top, and the inner wall fixed mounting of mounting hole has the mount pad, the inner wall swivelling joint of mount pad has screw-nut, screw-nut's top fixedly connected with accepts the drive wheel, the drive wheel with accept the outer wall cover of drive wheel is equipped with synchronous drive belt.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the inner wall diameter of the protection sleeve is matched with the diameter of the ball screw, so that the ball screw can be retracted to the protection sleeve in the lifting process, and the ball screw is protected.

Further, the screw nut is in threaded connection with the ball screw, so that the screw nut can drive the ball screw to lift in the rotating process.

Further, the driving transmission wheel and the receiving transmission wheel are in transmission connection through the synchronous transmission belt, so that the driving transmission wheel can drive the receiving transmission wheel to rotate through the synchronous transmission belt.

Further, the outer wall of the protective cover is provided with a through hole matched with the synchronous transmission belt, so that the synchronous transmission belt can penetrate through the inner wall of the protective cover to be connected with the bearing transmission wheel in a meshed mode.

Further, the guide rail matched with the electric grinding head mechanism is arranged on the numerical control surface grinding machine body, and the inner wall of the guide rail is in sliding connection with the electric grinding head mechanism, so that the electric grinding head mechanism can be lifted and adjusted in the numerical control surface grinding machine body.

Further, a through hole matched with the ball screw is formed in the top of the receiving transmission wheel, so that the ball screw can pass through the receiving transmission wheel.

The beneficial effects of the utility model are as follows: the utility model provides a nut rotary ball screw device for a numerical control surface grinding machine, which has the following advantages:

1. the screw rod is arranged on the upper side of the electric grinding head mechanism, the screw rod which is fixed is driven by the screw rod nut to vertically move through the screw rod nut rotating device, the screw rod is subjected to tensile stress and is not easy to deform, and the transmission precision of the screw rod is ensured;

2. the screw rod does not pass through the grinding head, the screw rod is arranged at the middle position of the grinding head, the guide rail is uniformly stressed, and the service life of the guide rail is prolonged;

3. the motor synchronous pulley on the motor and the synchronous pulley arranged on the rotary nut transmit rotary motion through the synchronous belt, so that the defect of low repetition precision of the grinding head caused by backlash of gear transmission is overcome;

4. the motor is not arranged in the operation space in front of the machine tool, so that potential safety hazards are eliminated.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a three-dimensional view of a nut-turning ball screw device for a CNC surface grinding machine according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a nut-rotating ball screw device for a surface grinder according to an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

In the drawings, the list of components represented by the various numbers is as follows:

1. a numerical control surface grinder body; 2. an electric grinding head mechanism; 3. a guide rail; 4. a ball screw; 5. a protective cover; 6. a protective sleeve; 7. a stepping motor; 8. driving a driving wheel; 9. a mounting base; 10. a screw nut; 11. a receiving driving wheel; 12. a synchronous drive belt.

Detailed Description

The principles and features of the present utility model are described below with reference to the following drawings, the examples being provided for the purpose of illustrating the utility model and not for the purpose of limiting the same. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, the utility model provides a nut rotary ball screw device for a numerical control surface grinder, which comprises a numerical control surface grinder main body 1 and an electric grinding head mechanism 2, wherein a ball screw 4 is fixedly connected to the middle position of the top of the electric grinding head mechanism 2, a protective cover 5 is fixedly arranged on the numerical control surface grinder main body 1, a protective sleeve 6 is fixedly communicated with the top of the protective cover 5, a stepping motor 7 is fixedly arranged on the numerical control surface grinder main body 1, a driving transmission wheel 8 is fixedly connected to the top of the stepping motor 7, a mounting hole is formed in the top of the numerical control surface grinder main body 1, a mounting seat 9 is fixedly arranged on the inner wall of the mounting hole, a screw nut 10 is rotatably connected to the inner wall of the mounting seat 9, a receiving transmission wheel 11 is fixedly connected to the top of the screw nut 10, and a synchronous transmission belt 12 is sleeved on the outer walls of the driving transmission wheel 8 and the receiving transmission wheel 11.

Preferably, the diameter of the inner wall of the protective sleeve 6 is adapted to the diameter of the ball screw 4, so that the ball screw 4 can be retracted into the protective sleeve 6 during lifting, thereby protecting the ball screw 4.

Preferably, the screw nut 10 is in threaded connection with the ball screw 4, so that the screw nut 10 can drive the ball screw 4 to lift in the rotation process.

Preferably, the driving transmission wheel 8 and the receiving transmission wheel 11 are in transmission connection through the synchronous transmission belt 12, so that the driving transmission wheel 8 can drive the receiving transmission wheel 11 to rotate through the synchronous transmission belt 12.

Preferably, the outer wall of the protective cover 5 is provided with a through hole matched with the synchronous transmission belt 12, so that the synchronous transmission belt 12 can penetrate to the inner wall of the protective cover 5 to be connected with the receiving transmission wheel 11 in a meshed manner.

Preferably, the digital control surface grinding machine body 1 is provided with a guide rail 3 matched with the electric grinding head mechanism 2, and the inner wall of the guide rail 3 is in sliding connection with the electric grinding head mechanism 2, so that the electric grinding head mechanism 2 can lift and adjust the height in the digital control surface grinding machine body 1.

Preferably, a through hole matched with the ball screw 4 is formed at the top of the receiving transmission wheel 11, so that the ball screw 4 can pass through the receiving transmission wheel 11.

The specific working principle and the using method of the utility model are as follows: after the step motor 7 is started to rotate the driving transmission wheel 8, the driving transmission wheel 8 can drive the receiving transmission wheel 11 to rotate through the synchronous transmission belt 12, the receiving transmission wheel 11 can drive the screw nut 10 to rotate on the inner wall of the mounting seat 9, so that the ball screw 4 can be driven to lift, the ball screw 4 can drive the electric grinding head mechanism 2 to lift in the guide rail 3 of the numerical control surface grinding machine main body 1 in the moving process, the height of the electric grinding head mechanism 2 is adjusted, the ball screw 4 and the screw nut 10 can be protected by the protective cover 5 and the protective sleeve 6 at the top of the protective cover, and the service life is prolonged.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. What is not described in detail in this specification is prior art known to those skilled in the art.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. The utility model provides a nut rotation ball screw device for numerical control surface grinding machine, includes numerical control surface grinding machine main part (1) and electronic bistrique mechanism (2), its characterized in that: the automatic grinding machine is characterized in that a ball screw (4) is fixedly connected to the middle position of the top of the electric grinding head mechanism (2), a protective cover (5) is fixedly arranged on the numerical control surface grinding machine body (1), a protective sleeve (6) is fixedly communicated with the top of the protective cover (5), a stepping motor (7) is fixedly arranged on the numerical control surface grinding machine body (1), a driving transmission wheel (8) is fixedly connected to the top of the stepping motor (7), a mounting hole is formed in the top of the numerical control surface grinding machine body (1), a mounting seat (9) is fixedly arranged on the inner wall of the mounting hole, a screw nut (10) is rotatably connected to the inner wall of the mounting seat (9), a bearing transmission wheel (11) is fixedly connected to the top of the screw nut (10), and a synchronous transmission belt (12) is sleeved on the outer wall of the driving transmission wheel (8) and the bearing transmission wheel (11).

2. The nut rotating ball screw device for a numerical control surface grinding machine according to claim 1, wherein the diameter of the inner wall of the protective sleeve (6) is matched with the diameter of the ball screw (4).

3. The nut-rotating ball screw device for a numerical control surface grinding machine according to claim 1, characterized in that the screw nut (10) is screwed with the ball screw (4).

4. The nut rotating ball screw device for the numerical control surface grinding machine according to claim 1, wherein the driving transmission wheel (8) and the receiving transmission wheel (11) are in transmission connection through a synchronous transmission belt (12).

5. The nut rotating ball screw device for the numerical control surface grinding machine according to claim 1, wherein the outer wall of the protective cover (5) is provided with a through hole matched with the synchronous transmission belt (12).

6. The nut rotating ball screw device for the numerical control surface grinding machine according to claim 1, wherein the numerical control surface grinding machine body (1) is provided with a guide rail (3) which is matched with the electric grinding head mechanism (2), and the inner wall of the guide rail (3) is in sliding connection with the electric grinding head mechanism (2).

7. The nut rotating ball screw device for the numerical control surface grinding machine according to claim 1, wherein the top of the receiving driving wheel (11) is provided with a through hole matched with the ball screw (4).