Single-shaft guiding bidirectional locking displacement table

Abstract

The utility model discloses a uniaxial guiding bidirectional locking displacement table, which comprises a knob, a locking nut, a driving screw rod, a screw sleeve guide pillar, a sliding plate, a spring, a spring sleeve guide pillar, a locking screw rod, a screw and a fixing plate, the screw sleeve guide pillar and the spring sleeve guide pillar are arranged on the fixing plate and used for limiting the movement and rotation of the sliding plate in the Y direction and the Z direction, and the locking screw rod is arranged on the sliding plate. A fixing plate is arranged on the lower side of the sliding plate and limits rotation of the sliding plate in the X direction, the sliding plate is always pressed by a spring in the adjusting process, after the sliding plate is adjusted to the needed position, a locking nut is screwed to press a thread sleeve guide column to complete left side locking, and a locking screw is rotated to press the sliding plate to complete right side locking. The guiding, driving, locking and clearance eliminating functions of the device are designed on the same axis, the structure is very compact, the number of parts is reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to an optical displacement stage, in particular to a highly integrated single-axis guided bidirectional locking displacement stage. Background Art

[0002] Existing translation stages are made of 3-series (303) or 4-series (440C) stainless steel, which have a high coefficient of thermal expansion and contraction. This results in significant fluctuations in the overall stability of the translation stage in experimental environments with large temperature fluctuations. Furthermore, the stage has weak magnetism and is prone to attracting metal particles, which affects the experimental environment. The overall mass is high, placing high load requirements on the test platform. The guide mechanism, drive mechanism, locking mechanism, backlash elimination, and return mechanism of the translation stage are generally designed in separate locations, limiting the compactness of the structure. Furthermore, the stage is generally driven by a metal threaded pair, making it difficult to adjust small displacements. Utility Model Content

[0003] Purpose of the utility model: The purpose of the utility model is to provide a highly integrated single-axis guided bidirectional locking translation stage.

[0004] Technical solution: The device of the utility model includes a knob, a locking nut, a driving screw, a screw sleeve guide post, a sliding plate, a spring, a spring sleeve guide post, a locking screw, a screw and a fixed plate. The screw sleeve guide post and the spring sleeve guide post are provided on the lower side of the sliding plate to limit the movement and rotation of the sliding plate in the Y and Z directions respectively. A fixed plate is provided on the lower side of the screw sleeve guide post and the spring sleeve guide post to limit the rotation of the sliding plate in the X direction. During the adjustment process, the spring always presses the sliding plate. When it is adjusted to the required position, the locking nut is turned to tighten the screw sleeve guide post to complete the left side locking, and the right side locking is completed by rotating the locking screw to press the sliding plate.

[0005] Furthermore, the lower side of the screw sleeve guide column is set as a driving screw, and a knob is nested at the outer end of the driving screw.

[0006] Furthermore, the inner side of the knob is a locking nut, which is sleeved on the driving screw.

[0007] Furthermore, the lower side of the spring sleeve guide column is a locking screw.

[0008] Furthermore, the spring sleeve guide column and the fixing plate are locked by screws and glue.

[0009] Furthermore, the screw sleeve guide column and the fixing plate are locked by screws and glue.

[0010] Furthermore, the screw sleeve guide pillar, sliding plate, spring sleeve guide pillar and fixing plate are made of ceramic or microcrystalline glass.

[0011] Beneficial effects: Compared with the existing technology, the utility model has the following advantages: the guide mechanism, drive mechanism, locking mechanism, clearance elimination and return mechanism of the translation stage are all designed on one axis, the structure is very compact, the number of components is reduced and the cost is reduced, and the form of the guide column and guide sleeve is suitable for glass or ceramic material processing, and the special guide transmission mechanism reduces the difficulty of fine machining and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model;

[0013] Figure 2 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0014] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, the device of the present invention includes a knob 1, a locking nut 2, a driving screw 3, a screw sleeve guide column 4, a sliding plate 5, a spring 6, a spring sleeve guide column 7, a locking screw 8, a screw 9 and a fixed plate 10. The lower side of the sliding plate 5 is provided with a screw sleeve guide column 4 and a spring sleeve guide column 7, which respectively limit the movement and rotation of the sliding plate 5 in the Y and Z directions. The lower side of the screw sleeve guide column 4 and the spring sleeve guide column 7 is provided with a fixed plate 10, which limits the rotation of the sliding plate 5 in the X direction. During the adjustment process, the spring 6 always presses the sliding plate 5. When it is adjusted to the required position, the locking nut 2 is screwed to tighten the screw sleeve. The guide column 4 completes the left-side locking, and the right-side locking is completed by rotating the locking screw 8 to press the sliding plate 5. The lower side of the screw sleeve guide column 4 is set to be a driving screw 3, and the outer end of the driving screw 3 is nested with a knob 1. The inner side of the knob 1 is a locking nut 2, and the locking nut 2 is sleeved on the driving screw 3; the lower side of the spring sleeve guide column 7 is a locking screw 8; the spring sleeve guide column 7 and the fixed plate 10 are locked by gluing with screws 9; the screw sleeve guide column 4 and the fixed plate 10 are locked by gluing with screws 9; the screw sleeve guide column 4, sliding plate 5, spring sleeve guide column 7 and fixed plate 10 are made of ceramic or microcrystalline glass.

[0016] like Figure 2 As shown, the sliding plate 5 is restricted in its Y and Z directions by screw guide pins 4 and spring guide pins 7. The sliding plate 5 is further restricted in its X-direction rotation by fixed plates 10 on both sides. (Assembly requires light pre-tightening and then gluing the locking screws 9 for improved accuracy.) Forward and reverse movement in the X-direction is adjusted by rotating the drive screw 3. During adjustment, the spring 6 always compresses the sliding plate 5 to prevent backlash during screw adjustment. When the desired position is reached, tighten the locking nut 2 against the screw guide pin 4 to lock the left side. For right-side locking, rotate the locking screw 8 to compress the sliding plate 5.

[0017] Existing translation stages and optical adjustment mounts are typically made of 316 or 440C stainless steel to reduce the impact of thermal deformation on overall structural stability and accuracy. However, the thermal expansion and contraction coefficient of stainless steel is less than ideal, resulting in significant fluctuations in the overall stability of the translation stage in experimental environments with large temperature fluctuations. Stainless steel is generally weakly magnetic and easily absorbs metal particles, affecting the experimental environment. Furthermore, its overall mass is relatively high, placing high load requirements on the test bench.

[0018] Our component structure is very suitable for glass or ceramic mold molding. The special guide transmission mechanism reduces the difficulty of finishing the surface and assembly. It fully utilizes the advantages of ceramics and microcrystalline glass in dimensional stability and good surface sealing performance, and widely uses hydraulic cylinders, pneumatic cylinders, and guide column structures.

Claims

1. A single-axis guided bidirectional locking translation stage, characterized by: The invention comprises a knob (1), a locking nut (2), a driving screw (3), a screw sleeve guide post (4), a sliding plate (5), a spring (6), a spring sleeve guide post (7), a locking screw (8), a screw (9) and a fixing plate (10). The sliding plate (5) is provided with a screw sleeve guide post (4) and a spring sleeve guide post (7) on the lower side thereof, respectively limiting the movement and rotation of the sliding plate (5) in the Y and Z directions. A fixing plate (10) is provided on the lower side of the screw sleeve guide post (4) and the spring sleeve guide post (7). The fixing plate (10) limits the rotation of the sliding plate (5) in the X direction. During the adjustment process, the spring (6) always presses the sliding plate (5). When the adjustment is to the required position, the locking nut (2) is screwed to press the screw sleeve guide post (4) to complete the left locking, and the right locking is completed by rotating the locking screw (8) to press the sliding plate (5).

2. The single-axis guided bidirectional locking translation stage according to claim 1, characterized in that: The lower side of the screw sleeve guide column (4) is provided with a driving screw rod (3), and a knob (1) is nested at the outer end of the driving screw rod (3).

3. The single-axis guided bidirectional locking translation stage according to claim 2, characterized in that: The inner side of the knob (1) is a locking nut (2), and the locking nut (2) is sleeved on the driving screw (3).

4. The single-axis guided bidirectional locking translation stage according to claim 1, characterized in that: The lower side of the spring sleeve guide column (7) is a locking screw (8).

5. The single-axis guided bidirectional locking translation stage according to claim 1, characterized in that: The spring sleeve guide column (7) and the fixing plate (10) are locked by gluing screws (9).

6. The single-axis guided bidirectional locking translation stage according to claim 1, characterized in that: The screw sleeve guide column (4) and the fixing plate (10) are locked by gluing screws (9).

7. The single-axis guided bidirectional locking translation stage according to claim 1, characterized in that: The screw sleeve guide pillar (4), the sliding plate (5), the spring sleeve guide pillar (7) and the fixing plate (10) are made of ceramic or glass-ceramic material.

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