Rigid-flexible composite guide device

Abstract

The utility model belongs to the technical field of guiding devices, and discloses a rigid-flexible composite guiding device which comprises a guiding body, a guiding mechanism and a flexible guiding piece arranged between the guiding mechanism and the guiding body. The flexible guiding piece comprises a supporting frame fastened to the guiding body, a connecting block fastened to the guiding mechanism, and a plurality of elastic pieces symmetrically distributed on the two sides of the connecting block and connected with the supporting frame. According to the rigid-flexible composite guiding device with the structural design, friction disturbance is converted into elastic deformation through elastic deformation of the flexible guiding piece, then friction force is compensated, and the displacement precision of the guiding body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guiding devices, in particular to a rigid-flexible composite guiding device. Background Art

[0002] In the existing guiding devices, most of them connect the guiding mechanism and the guiding body, and then drive the relative movement between the guiding body and the guiding mechanism through the driving component. When the guiding device arranged in this way bears a large load, the friction force becomes larger, which easily affects its overall movement. Therefore, how to compensate for its friction force and effectively improve the displacement accuracy has become an urgent problem to be solved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a rigid-flexible composite guiding device, which converts the friction disturbance into elastic deformation through the elastic deformation of the flexible guiding member, and then compensates for the friction force, so that the displacement accuracy is greatly improved.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A rigid-flexible composite guiding device includes a guiding body, a guiding mechanism, and a flexible guiding member arranged between the guiding mechanism and the guiding body;

[0006] The flexible guiding member includes a support frame fastened to the guiding body, a connection block fastened to the guiding mechanism, and a plurality of elastic sheets symmetrically distributed on both sides of the connection block and connected to the support frame.

[0007] Wherein, the flexible guiding member and the guiding mechanism are integrally arranged.

[0008] Wherein, an adjusting member for adjusting the elastic force of the elastic sheet is arranged between the support frame and the guiding body.

[0009] Wherein, it further includes a driving component for driving the guiding body to move back and forth along the guiding mechanism.

[0010] Wherein, two of the flexible guiding members on each side of the guiding body are spaced apart by a support rigid frame.

[0011] Wherein, the plurality of elastic sheets are elastically deformed along the moving direction of the guiding body.

[0012] Wherein, the guiding mechanism includes a guide rail and a slider that is slidably matched with the guide rail, and the slider is fastened to the connection block.

[0013] Wherein, the support frame is arranged in a U shape, and the frame of the support frame is provided with first screw holes for fastening with the guiding body; on one side of the connecting block that cooperates with the slider, an installation groove is provided, and the connecting block is provided with second screw holes for fastening with the slider.

[0014] Wherein, it further includes a displacement measuring element for detecting the deformation amount of the elastic sheet.

[0015] Wherein, the flexible guiding member is integrally processed from a metal material.

[0016] The beneficial effects of the present utility model: The present utility model provides a rigid-flexible composite guiding device, including a guiding body, a guiding mechanism, and a flexible guiding member arranged between the guiding mechanism and the guiding body; the flexible guiding member includes a support frame fastened to the guiding body, a connecting block fastened to the guiding mechanism, and a plurality of elastic sheets symmetrically distributed on both sides of the connecting block and connected to the support frame. With the rigid-flexible composite guiding device designed in this structure, through the elastic deformation of the flexible guiding member, the frictional disturbance is converted into elastic deformation, and then the friction force is compensated, so that the displacement accuracy of the guiding body is greatly improved. Description of the Drawings

[0017] Figure 1 is an axonometric view of a rigid-flexible composite guiding device of the present utility model.

[0018] Figure 2 is Figure 1 an axonometric view of the flexible guiding member in

[0019] Figure 3 is an axonometric view of the rigid-flexible composite guiding device of the present utility model when driven by a lead screw driving mechanism.

[0020] Figure 4 is an axonometric view of the rigid-flexible composite guiding device of the present utility model when driven by a linear motor.

[0021] Figure 5 is an axonometric view of another flexible guiding member in the rigid-flexible composite guiding device of the present utility model.

[0022] Figure 6 is Figure 5 an axonometric view of the elastic sheet of the flexible guiding member in Detailed Description of the Embodiment

[0023] The following further describes the present utility model in detail 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 convenience of description, only parts related to the present utility model are shown in the drawings, rather than all structures.

[0024] 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 integrated; 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 elements or the interaction relationship between two elements. 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.

[0025] 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 and to the right of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below and to the left of", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0026] 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 should not be construed 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.

[0027] Combined with Figures 1 to 4 As shown in the figure, this embodiment provides a rigid-flexible composite guiding device, which includes a guiding body 1, a guiding mechanism 2, and a flexible guiding member 3 arranged between the guiding mechanism 2 and the guiding body 1; wherein, the flexible guiding member 3 includes a support frame 31 fastened to the guiding body 1, a connection block 32 fastened to the guiding mechanism 2, and a plurality of elastic sheets 33 symmetrically distributed on both sides of the connection block 32 and connected to the support frame 31, and the plurality of elastic sheets 33 elastically deform along the moving direction of the guiding body 1. Preferably, the flexible guiding member 3 can be integrally processed from materials with a relatively long fatigue life, such as manganese steel and spring steel.

[0028] More specifically, the guiding mechanism 2 described above includes a guide rail 21 and a slider 22 that is slidably engaged with the guide rail 21. The slider 22 is fastened to the connecting block 32. In addition, the support frame 31 is U-shaped, and a first screw hole 311 for fastening to the guiding body 1 is provided in the border of the support frame 31. An installation groove 321 is provided on one side of the connecting block 32 that cooperates with the slider 22, and a second screw hole for fastening to the slider 22 is provided on the side of the connecting block 32 close to the slider 22. With the guiding mechanism 2 and the flexible guiding member 3 designed in this structure, since the support frame 31 is connected to the guiding body 1 and the connecting block 32 is connected to the slider 22, the friction generated during the movement of the guiding body 1 can be compensated in real time through the elastic sheet 33 provided between the connecting block 32 and the support frame 31, thereby effectively improving the displacement accuracy of the guiding body 1.

[0029] In order to facilitate real-time detection of the displacement condition during the movement process, a displacement measuring element for detecting the deformation amount of the elastic sheet 33 is also provided in this embodiment. The displacement measuring element includes a first displacement sensor (not shown in the figure) provided on the guiding body 1 for sensing the displacement amount of the guiding body 1, and a second displacement sensor (not shown in the figure) provided on the support frame 31 for sensing the displacement amount of the flexible guiding member 3. Thus, the deformation amount of the flexible guiding member 3 is measured, and then the load size borne by the guiding body 1 is calculated through a specific algorithm. The specific setting and calculation method of this part have been disclosed in the related art and will not be specifically described here.

[0030] Furthermore, the guiding body 1 in this embodiment is plate-shaped, and a plurality of flexible guiding members 3 are distributed at the four lower bottom surfaces of the guiding body 1. In order to ensure the consistency of the movement of the four flexible guiding members 3, the two flexible guiding members 3 on each side of the guiding body 1 are connected at intervals through support rigid frames 41 and 42. Preferably, the support rigid frames 41 and 42 are perpendicular to the movement direction of the guiding body 1 and are fastened to the flexible guiding members 3 on both sides. Or according to the installation requirements, the support rigid frame 42 can be set to two to avoid blocking the middle part of the lower bottom surface of the guiding body 1.

[0031] In order to facilitate driving the movement along the length direction of the guiding mechanism 2, the rigid-flexible composite guiding device is also provided with a driving component. Preferably, the driving component can be set as a screw driving mechanism 51 driven by a motor, or can be set as a linear motor 52. When the screw driving mechanism 51 is adopted, the above support rigid frame 41 is integrally provided. When the linear motor 52 is adopted, in order to avoid blocking the linear motor 52, the support rigid frame 42 can be set to two.

[0032] As an alternative to this embodiment, the flexible guide member 3 designed with the above structure can also be integrally processed with the above slider 22, that is, the slider 22 and the connecting block 32 are set as one body, which can also achieve the same technical effect.

[0033] In addition, as shown in combination with Figure 5 and Figure 6 As another preferred embodiment of the flexible guide member in this embodiment, the flexible guide member 6 is similar in structure to the above flexible guide member 3 and has the same function. The difference is that the flexible guide member 6 can be provided with an adjusting member 63 for adjusting the elastic force of the elastic piece 62 on the border of a support frame 61. When the flexible guide member 6 is in use, one border of its support frame can be fastened to the upper surface of the guide body 1, and the corresponding other border is arranged in parallel and at intervals with the support block 11 on the side of the guide body 1. The other border of its support frame is pulled by the adjusting member 63 passing through the counterbore of the support block 11. After the elastic force of the elastic piece 62 is adjusted in place, the other border is locked to the guide body 1, so as to change the elastic force of the elastic piece 62 of the flexible guide member 6 and meet the use requirements of the rigid-flexible composite guide device.

[0034] The technical principle of the present invention has been described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted in any way as a limitation on the protection scope of the present invention. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative labor, and these embodiments will fall within the protection scope of the present invention.

Claims

1. A rigid-flexible composite guiding device, characterized in that: It comprises a guide body, a guide mechanism, and a flexible guide member arranged between the guide mechanism and the guide body; The flexible guide member includes a support frame fastened to the guide body, a connection block fastened to the guide mechanism, and a plurality of spring sheets symmetrically distributed on both sides of the connection block and connected to the support frame.

2. The rigid-flexible composite guiding device according to claim 1, characterized in that: The flexible guide member and the guide mechanism are integrally arranged.

3. The rigid-flexible composite guiding device according to claim 1, characterized in that: An adjusting member for adjusting the elastic force of the spring sheet is arranged between the supporting frame and the guide body.

4. The rigid-flexible composite guiding device according to claim 1, characterized in that: It also includes a driving assembly for driving the guide body to move back and forth along the guide mechanism.

5. The rigid-flexible composite guiding device according to claim 1, characterized in that: The two flexible guide members located on each side of the guide body are spaced apart by a supporting rigid frame.

6. The rigid-flexible composite guiding device according to claim 1, characterized in that: The plurality of spring sheets are elastically deformed along the moving direction of the guide body.

7. The rigid-flexible composite guiding device according to claim 1, characterized in that: The guide mechanism comprises a guide rail and a slider slidably matched with the guide rail, and the slider is fastened to the connecting block.

8. The rigid-flexible composite guiding device according to claim 7, characterized in that: The support frame is U-shaped, and the frame of the support frame is provided with a first screw hole fastened to the guide body; a mounting groove is provided on one side of the connecting block that matches the slider, and the connecting block is provided with a second screw hole fastened to the slider.

9. The rigid-flexible composite guiding device according to claim 1, characterized in that: It also includes a displacement measuring element for detecting the deformation of the spring sheet.

10. The rigid-flexible composite guiding device according to claim 1, characterized in that: The flexible guide member is made of metal material and processed in one piece.

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