CN103955229A - Precise and controllable sliding table devices and combination thereof - Google Patents

Abstract

The invention provides precise and controllable sliding table devices and a combination thereof. Each precise and controllable sliding table device comprises a shell, a sliding table and a plurality of driving bodies, wherein the shell is provided with a first cavity for the sliding table to slide, and a second cavity used for containing the driving bodies, the sliding table comprises a sliding table inner end and a sliding table outer end, the sliding table inner end is provided with a permanent magnet, and interactive magnetic circuit structures are formed between the driving bodies and the permanent magnet. A plurality of the precise and controllable sliding table devices are mutually connected to form the multi-degree of freedom combined precise and controllable sliding table device combination. The precise and controllable sliding table devices have the advantages of being simple in structure and low in weight, precise control over the sliding stroke of the sliding tables is achieved, and the requirement for the precise control of the modern industry is met.

Description

Precise controllable sliding table device and its combination

technical field

The invention relates to the technical field of force-controlled displacement devices, in particular to a precision controllable sliding table device and a combination thereof.

Background technique

The mobile controllable sliding table is mainly used in measurement and positioning devices, and the measurement and positioning are controlled by moving the controllable sliding table. The existing mobile controllable sliding table is mainly controlled by a motor. This structure leads to complex structure, heavy weight, and low precision of movement control, which cannot meet the needs of modern industry for precise control and positioning.

Do not find description or report similar to the present invention at present, also do not collect similar data both at home and abroad.

Contents of the invention

The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a precision controllable sliding table device and its combination.

The present invention is achieved through the following technical solutions.

According to one aspect of the present invention, a precision controllable sliding table device is provided, including a housing, a sliding table and several driving bodies, the housing is provided with a first cavity for the sliding table to move and for placing several driving bodies. The second cavity of the body, the slide table includes the inner end of the slide table and the outer end of the slide table, wherein the inner end of the slide table is provided with a permanent magnet, and a magnetic circuit structure interacting is formed between the plurality of driving bodies and the permanent magnet .

Preferably, any one or more of the following components are also included:

- a spring, one end of the spring is fixed on the inner end wall of the first cavity, and the other end of the spring is fixedly connected to the inner end of the slide table, and is used to limit the maximum stroke end point of the slide table;

- a limit block, the limit block is fixed between the inner end of the slide table and the inner end wall of the first cavity, and is used to limit the minimum stroke end point of the slide table;

- a guide device, the guide device is arranged between the side wall of the first cavity and the side wall of the slide table, for reducing the friction force between the slide table and the side wall of the first cavity and limiting the movement of the slide table direction.

Preferably, on the contact surface between the side wall of the slide table and the guide device, a chute matching the guide device is provided.

Preferably, a magnetizer is provided outside the driving body to increase the strength of the magnetic field and improve the excitation effect.

Preferably, the driving body is an electromagnetic coil or an electromagnet.

Preferably, a connection hole is provided near the outer end of the slide table.

According to another aspect of the present invention, a combined precision controllable sliding table device is provided, comprising a plurality of the above precision controllable sliding table devices connected to each other to form a combined precision controllable sliding table device with multiple degrees of freedom.

Preferably, the plurality of precisely controllable sliding table devices are connected through connecting holes on the outer ends of the sliding table.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention uses the excitation field to control the movement of the sliding table, and the control of the movement stroke is more precise;

2. When there is one driving body, it is suitable for a controllable sliding table with a small stroke; when there are multiple driving bodies, it is suitable for a controllable sliding table with a large stroke; turn on and off the power of multiple driving bodies in sequence, Realize the precise control of the moving stroke, and the movement is more stable;

4. Limit the stroke of the sliding table by springs, limit blocks and/or guiding devices to achieve precise displacement of the sliding table;

5. The present invention is simple in structure and light in weight, and meets the requirements of modern industry for precision control.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a schematic structural diagram of the precision controllable sliding table device of the present invention;

Fig. 2 is a schematic diagram of the working process of the precision controllable sliding table device of the present invention;

In the figure: 1 is a permanent magnet, 2 is a driving body, 3 is a spring, 4 is a guiding device, 5 is a limit block, 6 is a magnet guide, 7 is a slide table, 8 is a connecting hole, and 9 is a housing.

Detailed ways

The following is a detailed description of the embodiments of the present invention: this embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and specific operation processes. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Please refer to Figure 1 and Figure 2 together.

Example 1

This embodiment provides a precision controllable sliding table device, including a housing 9, a sliding table 7 and several driving bodies 2, the housing 9 is provided with a first cavity for the sliding table 7 to move and for placing several The second cavity of the driving body 2, the sliding table 7 includes the inner end of the sliding table and the outer end of the sliding table, wherein the inner end of the sliding table is provided with a permanent magnet 1, and a plurality of driving bodies 2 are formed between the permanent magnets 1. Interacting magnetic circuit structures.

Further, any one or more of the following components are also included:

- spring 3, one end of the spring is fixed on the inner end wall of the first cavity, and the other end of the spring is fixedly connected with the inner end of the slide table, and is used to limit the maximum stroke end point of the slide table;

- Limiting block 5, said limiting block is fixed between the inner end of the slide table and the inner end wall of the first cavity, and is used to limit the minimum stroke end point of the slide table;

-Guiding device 4, described guiding device is arranged between the side wall of the first cavity and the side wall of slide table, is used for reducing the frictional force between slide table and the side wall of first cavity and limits the space of slide table direction of movement.

Further, on the contact surface between the side wall of the slide table and the guide device, a chute matching the guide device is provided.

Further, a magnetic conductor 6 is arranged outside the driving body 2 for increasing the magnetic field strength and improving the excitation effect.

Further, the driving body 2 adopts an electromagnetic coil or an electromagnet.

Further, a connecting hole 8 is provided near the outer end of the sliding platform 7 .

The precision controllable sliding table device provided in this embodiment uses the excitation field to control the movement of the sliding table, and the control of the moving stroke is more precise; when the driving body is an electromagnetic coil or electromagnet, it is suitable for small strokes. Controllable sliding table; when the driving body is multiple electromagnetic coils or electromagnets, it is suitable for a controllable sliding table with a large stroke; turn on and off power to multiple electromagnetic coils or electromagnets in sequence to achieve precise control of the moving stroke , and the motion stability is stronger; the stroke of the slide table is limited by the spring, the limit block and/or the guide device, and the precise displacement of the slide table is realized.

Example 2

This embodiment provides a combined precision controllable sliding table device, which includes a plurality of interconnected precision controllable sliding table devices provided in Embodiment 1 to form a combined precision controllable sliding table device with multiple degrees of freedom.

Further, the plurality of precisely controllable sliding table devices are connected through connection holes on the outer ends of the sliding table.

When two precision controllable sliding table devices are connected through connecting holes, a combined precision controllable sliding table device with two degrees of freedom can be formed; similarly, after three precision controllable sliding table devices are connected through connecting holes, they can be A combined precision controllable sliding table device with three degrees of freedom is formed; after multiple precision controllable sliding table devices are connected through connecting holes, a combined precision controllable sliding table device with multiple degrees of freedom can be formed.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims (8)

1. the controlled slide rest device of precision, it is characterized in that, comprise housing, slide unit and some driving bodies, described housing is provided with the first cavity of moving for slide unit and for placing the second cavity of some driving bodies, described slide unit comprises slide unit the inner and slide unit outer end, wherein, slide unit the inner is provided with permanent magnet, between described some driving bodies and permanent magnet, forms interactional magnetic structure.

2. the controlled slide rest device of precision according to claim 1, is characterized in that, also comprise following any or appoint multiple parts:

-spring, one end of described spring is fixed on the inside end wall of the first cavity, and the other end of described spring is fixedly connected with the inner end of slide unit;

-limited block, described limited block is fixed between the inner end of slide unit and the inside end wall of the first cavity;

-guide piece, described guide piece is arranged between the sidewall of the first cavity and the sidewall of slide unit.

3. the controlled slide rest device of precision according to claim 2, is characterized in that, described slide unit sidewall and guide piece phase-contact surface are provided with the chute suitable with guide piece.

4. the controlled slide rest device of precision according to claim 1 and 2, is characterized in that, the outer setting of described driving body is useful on the magnetic conductor that strengthens magnetic field intensity.

5. the controlled slide rest device of precision according to claim 4, is characterized in that, described driving body adopts solenoid or electromagnet.

6. the controlled slide rest device of precision according to claim 1 and 2, is characterized in that, described slide unit outer end is provided with connecting hole near end.

7. the accurate controlled slide rest device of combined type, is characterized in that, comprises in multiple interconnective claims 1 to 6 accurate controlled slide rest device described in any one, forms and has the accurate controlled slide rest device of multivariant combined type.

8. the accurate controlled slide rest device of combined type according to claim 7, is characterized in that, the controlled slide rest device of described multiple precisions connects by the connecting hole on slide unit outer end.