Three-way fine-tuning mechanism

Abstract

The three-way fine-tuning mechanism has a base plate fixed on the upper end face of the connecting seat, the lower end of the base positioning pin extends into the connecting seat, the upper end of the positioning pin extends into the base, and a height fine-tuning component for adjusting the height of the base is connected to the connecting seat; a transverse groove is provided on the upper end face of the base, and the transverse slide rail is slidably installed in the transverse groove, and a transverse fine-tuning component for adjusting the transverse displacement of the transverse plate is connected to the base; a longitudinal groove is provided on the upper end face of the transverse plate, and a longitudinal slide rail having the same structure as the longitudinal groove is provided at the bottom of the longitudinal plate, and the longitudinal slide rail is slidably installed in the longitudinal groove, and a longitudinal fine-tuning component for adjusting the longitudinal displacement of the longitudinal plate is connected to the transverse plate. The overall structure is simple, and the three fine-tuning components can precisely adjust the position of the workpiece in three directions at the micron level, correct the relative error of the workpiece relative to the measuring device, and ensure that the position and posture of the workpiece relative to the measuring device are in the best state.

Description

Technical Field

[0001] The utility model relates to the field of precision measurement, in particular to a three-way fine-tuning mechanism. Background Art

[0002] In mechanical precision measurement, the dimensional errors of mechanical parts during machining and assembly will affect the matching accuracy with the measuring surface. At the same time, the measuring equipment itself causes slight position changes due to mechanical stress or thermal deformation. Therefore, when the workpiece is placed on the measuring bracket, in order to ensure the precision and accuracy of the measurement. Precision adjustment is required. The traditional adjustment process is that the measuring personnel use shims or hammers to fine-tune the position of the workpiece relative to the measuring bracket to eliminate the errors generated during machining and assembly, and compensate for the slight position changes caused by the mechanical stress or thermal deformation of the measuring equipment itself. There are the following defects when using shims or hammers for fine-tuning. First, the use of shims or hammers for fine-tuning requires re-adjustment every time a new measurement is made or the workpiece is replaced, which not only wastes time, but also easily introduces human errors. Second, the use of shims or hammers for fine-tuning cannot achieve the required slight precision adjustment, and due to the instability of human operation, the adjusted position may not be stable enough, resulting in deviations in the measurement results. Third, the measurement adjustment device cannot be reused. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model proposes a three-way fine-tuning mechanism, and the specific technical solution is as follows:

[0004] The three-way fine adjustment mechanism is characterized by:

[0005] It includes a connecting seat, a base plate, a base, a positioning pin, a transverse moving plate, a longitudinal moving plate, a height fine-tuning component, a transverse fine-tuning component and a longitudinal fine-tuning component;

[0006] The base plate is fixed to the upper end surface of the connecting seat, and four positioning pins are arranged on the base plate, the lower ends of the positioning pins extend into the connecting seat, and the upper ends of the positioning pins extend into the base;

[0007] The height fine-adjusting component for adjusting the height of the base is connected to the connecting seat;

[0008] The upper end surface of the base is provided with a transverse movement groove, and the bottom of the transverse movement plate is provided with a transverse movement slide rail having the same structure as the transverse movement groove;

[0009] The transverse slide rail is slidably mounted in the transverse groove, and the base is connected with the transverse fine-tuning component for adjusting the transverse displacement of the transverse plate;

[0010] A longitudinal groove is provided on the upper end surface of the transverse plate, and a longitudinal slide rail consistent with the longitudinal groove structure is provided at the bottom of the longitudinal plate. The longitudinal slide rail is slidably installed in the longitudinal groove, and a longitudinal fine-tuning component for adjusting the longitudinal displacement of the longitudinal plate is connected to the transverse plate.

[0011] In order to better realize the utility model, it can be further:

[0012] The height fine-adjustment assembly comprises a first height-adjusting threaded rod and a first height-limiting seat;

[0013] A height adjustment threaded hole is provided at the bottom of the base, the first height adjustment threaded rod is passed through the connecting seat, the end of the first height adjustment threaded rod extends into the height adjustment threaded hole, and the first height adjustment threaded rod rotates to drive the base to be fine-tuned up and down along the positioning pin;

[0014] The upper end surface of the connecting seat is connected to a first height limit seat, a first height limit opening is opened on the first height limit seat, a first height limit platform and a second height limit platform are provided on the first height threaded rod, a first height travel section is between the first height limit platform and the second height limit platform, and the first height travel section is inserted into the first height limit opening.

[0015] Further: the lateral fine-tuning assembly includes a lateral adjustment seat and a lateral adjustment threaded rod;

[0016] The side of the base located at one end of the sliding groove is connected with a transverse adjustment seat;

[0017] A transverse adjustment threaded hole is provided on the end surface of the transverse shift plate which is consistent with the transverse adjustment seat;

[0018] The end of the transverse adjustment threaded rod extends into the transverse adjustment threaded hole, and the rotation of the transverse adjustment threaded rod drives the transverse shifting plate to move along the transverse shifting groove;

[0019] The transverse adjustment seat is provided with a transverse limit opening, and the transverse adjustment threaded rod is provided with a first transverse limit platform and a second transverse limit platform;

[0020] A transverse travel section is between the first transverse limit platform and the second transverse limit platform, and the transverse travel section is inserted into the transverse limit opening.

[0021] Further: the longitudinal fine-tuning assembly includes a longitudinal adjustment seat and a longitudinal adjustment threaded rod;

[0022] The side surface of the transverse moving plate at one end of the longitudinal groove is connected to a longitudinal adjustment seat, and a longitudinal adjustment threaded hole is opened on the end surface of the longitudinal moving plate that is consistent with the longitudinal adjustment seat;

[0023] The end of the longitudinal adjustment threaded rod extends into the longitudinal adjustment threaded hole, and the longitudinal adjustment threaded rod rotates to drive the longitudinal movement plate to move along the longitudinal movement groove;

[0024] A longitudinal limit opening is formed on the longitudinal adjustment seat, a first longitudinal limit platform and a second longitudinal limit platform are provided on the longitudinal adjustment threaded rod, a longitudinal stroke section is formed between the first longitudinal limit platform and the second longitudinal limit platform, and the longitudinal stroke section is inserted into the longitudinal limit opening.

[0025] Further: a second height limit seat is connected to the side of the base, a second height limit opening is opened on the second height limit seat, the third height limit platform and the fourth height limit platform are provided on the second height adjustment threaded rod, a second height travel section is between the third height limit platform and the fourth height limit platform, and the second height travel section is inserted into the second height limit opening.

[0026] Furthermore: the side surface of the base located at one end of the sliding groove is detachably connected with a transverse adjustment seat.

[0027] Furthermore: the side surface of the transverse shift plate at one end of the longitudinal groove is detachably connected with a longitudinal adjustment seat.

[0028] Furthermore: the transverse displacement groove and the longitudinal displacement groove are both dovetail groove structures.

[0029] The beneficial effects of the utility model are:

[0030] The overall structure is simple, including height fine-tuning components, lateral fine-tuning components and longitudinal fine-tuning components. The three fine-tuning components can precisely adjust the position of the workpiece in three directions at the micron level, correct the relative error of the position of the workpiece relative to the measuring device, and ensure that the position and posture of the workpiece relative to the measuring device are in the best state, thereby ensuring the accuracy of the measurement results, and at the same time used to compensate for mechanical and thermal deformation. The first height limit seat, the second height limit seat, the longitudinal adjustment seat, and the lateral adjustment seat are set to avoid errors caused by excessive directional adjustment values. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the first structural diagram of the utility model;

[0032] Figure 2 This is the second structural diagram of the utility model;

[0033] Figure 3 It is a schematic diagram of the connection between the first height adjustment threaded rod, the connecting seat and the base plate;

[0034] Figure 4 The connection diagram for removing the longitudinal shift plate;

[0035] Figure 5It is a schematic diagram of the connection between the transverse shift plate and the transverse fine-tuning component;

[0036] Figure 6 It is a connection diagram of the first height adjustment threaded rod, the first height limit platform, and the second height limit platform;

[0037] The accompanying drawings in the figure are described as follows: connecting seat 1, positioning pin 2, base plate 3, base 4, transverse shift groove 5, transverse adjustment seat 6, transverse adjustment threaded rod 7, first transverse limit platform 8, second transverse limit platform 9, transverse shift plate 10, longitudinal shift groove 11, longitudinal adjustment seat 12, longitudinal adjustment threaded rod 13, first longitudinal limit platform 14, second longitudinal limit platform 15, longitudinal shift plate 16, first height limit seat 17, first height adjustment threaded rod 18, first height limit platform 19, second height limit platform 20, second height limit seat 21, second height adjustment threaded rod 22, third height limit platform 23, and fourth height limit platform 24. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the present utility model, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] like Figures 1 to 6 As shown:

[0041] The three-way fine-tuning mechanism comprises a connecting seat 1, a base plate 3, a base 4, a positioning pin 2, a transverse moving plate 10, a longitudinal moving plate 16, a height fine-tuning component, a lateral fine-tuning component and a longitudinal fine-tuning component;

[0042] The base plate 3 is fixed to the upper end surface of the connecting seat 1, and four positioning pins 2 are arranged on the base plate 3. The lower ends of the positioning pins 2 extend into the connecting seat 1, and the upper ends of the positioning pins 2 extend into the base 4. A height fine-tuning component for adjusting the height of the base 4 is connected to the connecting seat 1;

[0043] The upper end surface of the base 4 is provided with a transverse groove 5, and the bottom of the transverse plate 10 is provided with a transverse slide rail having the same structure as the transverse groove 5;

[0044] The transverse slide rail is slidably mounted in the transverse groove 5, and a transverse fine-tuning assembly for adjusting the transverse displacement of the transverse plate 10 is connected to the base 4;

[0045] A longitudinal groove 11 is provided on the upper end surface of the transverse plate 10, and a longitudinal slide rail with the same structure as the longitudinal groove 11 is provided at the bottom of the longitudinal plate 16. The longitudinal slide rail is slidably installed in the longitudinal groove 11, and a longitudinal fine-tuning component for adjusting the longitudinal displacement of the longitudinal plate 16 is connected to the transverse plate 10.

[0046] The height fine-adjustment assembly includes a first height adjustment threaded rod 18, a first height limit seat 17, a second height adjustment threaded rod 22 and a second height limit seat 21. A height adjustment threaded hole is opened at the bottom of the base 4, and the first height adjustment threaded rod 18 is passed through the connecting seat 1. The end of the first height adjustment threaded rod 18 extends into the first height adjustment threaded hole. The rotation of the first height adjustment threaded rod 18 drives the base 4 to be fine-tuned up and down along the positioning pin 2.

[0047] A first height limit seat 17 is connected to the upper end surface of the connecting seat 1, a first height limit opening is opened on the first height limit seat 17, a first height limit platform 19 and a second height limit platform 20 are provided on the first height threaded rod, a first height travel section is between the first height limit platform 19 and the second height limit platform 20, and the first height travel section is inserted into the first height limit opening.

[0048] A second height limit seat 21 is connected to the side of the base 4, a second height limit opening is opened on the second height limit seat 21, a third height limit platform 23 and a fourth height limit platform 24 are provided on the second height adjustment threaded rod 22, a second height travel section is between the third height limit platform 23 and the fourth height limit platform 24, and the second height travel section is inserted into the second height limit opening.

[0049] A transverse groove 5 is formed on the upper end surface of the base 4 , and a transverse slide rail having the same structure as the transverse groove 5 is provided at the bottom of the transverse plate 10 . The transverse slide rail is slidably mounted in the transverse groove 5 .

[0050] The lateral fine-tuning assembly includes a lateral adjustment seat 6 and a lateral adjustment threaded rod 7. The lateral adjustment seat 6 is detachably connected to the side of the base 4 located at one end of the sliding groove. A lateral adjustment threaded hole is opened on the end surface of the lateral moving plate 10 that is consistent with the lateral adjustment seat 6. The end of the lateral adjustment threaded rod 7 extends into the lateral adjustment threaded hole. The rotation of the lateral adjustment threaded rod 7 drives the lateral moving plate 10 to move along the lateral moving groove 5.

[0051] A transverse limit opening is provided on the transverse adjustment seat 6, and a first transverse limit platform 8 and a second transverse limit platform 9 are provided on the transverse adjustment threaded rod 7. A transverse stroke section is between the first transverse limit platform 8 and the second transverse limit platform 9, and the transverse stroke section is inserted into the transverse limit opening.

[0052] The longitudinal fine-tuning assembly includes a longitudinal adjustment seat 12 and a longitudinal adjustment threaded rod 13. A longitudinal groove 11 is opened on the upper end surface of the transverse plate 10. A longitudinal slide rail with the same structure as the longitudinal groove 11 is provided at the bottom of the longitudinal plate 16. The longitudinal slide rail is slidably installed in the longitudinal groove 11.

[0053] A longitudinal adjustment seat 12 is detachably connected to the side of the transverse plate 10 at one end of the longitudinal groove, and a longitudinal adjustment threaded hole is opened on the end face of the longitudinal plate 16 that is consistent with the longitudinal adjustment seat 12. The end of the longitudinal adjustment threaded rod 13 extends into the longitudinal adjustment threaded hole, and the rotation of the longitudinal adjustment threaded rod 13 drives the longitudinal plate 16 to move along the longitudinal groove 11.

[0054] A longitudinal limit opening is provided on the longitudinal adjustment seat 12, and a first longitudinal limit platform 14 and a second longitudinal limit platform 15 are provided on the longitudinal adjustment threaded rod 13. A longitudinal travel section is provided between the first longitudinal limit platform 14 and the second longitudinal limit platform 15, and the longitudinal travel section is inserted into the longitudinal limit opening. Both the transverse displacement groove 5 and the longitudinal displacement groove 11 are dovetail groove structures.

[0055] The working process of the utility model is as follows: the connecting seat 1 is connected to the measuring mechanism, a mounting hole is opened on the longitudinal moving plate 16, and the workpiece is connected to the longitudinal moving plate 16. When there is an error between the workpiece and the measuring reference surface of the measuring mechanism, the height of the base 4 relative to the connecting seat 1 is fine-tuned by turning the first height adjustment threaded rod 18 and the second height adjustment threaded rod 22, the position of the transverse moving plate 10 in the transverse moving groove 5 is adjusted by turning the transverse adjustment threaded rod 7, and the transverse position of the workpiece relative to the measuring mechanism is controlled. The position of the longitudinal moving plate 16 in the longitudinal moving groove 11 is adjusted by turning the longitudinal adjustment threaded rod 13, and the longitudinal position of the workpiece relative to the measuring mechanism is controlled, thereby realizing fine-tuning correction in three directions as a whole.

[0056] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Three-way fine-tuning mechanism, characterized by: It includes a connecting seat, a base plate, a base, a positioning pin, a transverse moving plate, a longitudinal moving plate, a height fine-tuning component, a transverse fine-tuning component and a longitudinal fine-tuning component; The base plate is fixed to the upper end surface of the connecting seat, and four positioning pins are arranged on the base plate, the lower ends of the positioning pins extend into the connecting seat, and the upper ends of the positioning pins extend into the base; The height fine-adjusting component for adjusting the height of the base is connected to the connecting seat; The upper end surface of the base is provided with a transverse movement groove, and the bottom of the transverse movement plate is provided with a transverse movement slide rail having the same structure as the transverse movement groove; The transverse slide rail is slidably mounted in the transverse groove, and the base is connected with the transverse fine-tuning component for adjusting the transverse displacement of the transverse plate; A longitudinal groove is provided on the upper end surface of the transverse plate, and a longitudinal slide rail consistent with the longitudinal groove structure is provided at the bottom of the longitudinal plate. The longitudinal slide rail is slidably installed in the longitudinal groove, and a longitudinal fine-tuning component for adjusting the longitudinal displacement of the longitudinal plate is connected to the transverse plate.

2. The three-way fine-tuning mechanism according to claim 1, characterized in that: The height fine-adjustment assembly comprises a first height-adjusting threaded rod and a first height-limiting seat; A height adjustment threaded hole is provided at the bottom of the base, the first height adjustment threaded rod is passed through the connecting seat, the end of the first height adjustment threaded rod extends into the height adjustment threaded hole, and the first height adjustment threaded rod rotates to drive the base to be fine-tuned up and down along the positioning pin; The upper end surface of the connecting seat is connected to a first height limit seat, a first height limit opening is opened on the first height limit seat, a first height limit platform and a second height limit platform are provided on the first height adjustment threaded rod, a first height travel section is between the first height limit platform and the second height limit platform, and the first height travel section is inserted into the first height limit opening.

3. The three-way fine-tuning mechanism according to claim 2, characterized in that: The lateral fine-tuning assembly comprises a lateral adjustment seat and a lateral adjustment threaded rod; The side of the base located at one end of the sliding groove is connected with a transverse adjustment seat; A transverse adjustment threaded hole is provided on the end surface of the transverse shift plate which is consistent with the transverse adjustment seat; The end of the transverse adjustment threaded rod extends into the transverse adjustment threaded hole, and the rotation of the transverse adjustment threaded rod drives the transverse shifting plate to move along the transverse shifting groove; The transverse adjustment seat is provided with a transverse limit opening, and the transverse adjustment threaded rod is provided with a first transverse limit platform and a second transverse limit platform; A transverse travel section is between the first transverse limit platform and the second transverse limit platform, and the transverse travel section is inserted into the transverse limit opening.

4. The three-way fine-tuning mechanism according to claim 3, characterized in that: The longitudinal fine-tuning assembly comprises a longitudinal adjustment seat and a longitudinal adjustment threaded rod; The side surface of the transverse moving plate at one end of the longitudinal groove is connected to a longitudinal adjustment seat, and a longitudinal adjustment threaded hole is opened on the end surface of the longitudinal moving plate that is consistent with the longitudinal adjustment seat; The end of the longitudinal adjustment threaded rod extends into the longitudinal adjustment threaded hole, and the longitudinal adjustment threaded rod rotates to drive the longitudinal movement plate to move along the longitudinal movement groove; A longitudinal limit opening is formed on the longitudinal adjustment seat, a first longitudinal limit platform and a second longitudinal limit platform are provided on the longitudinal adjustment threaded rod, a longitudinal stroke section is formed between the first longitudinal limit platform and the second longitudinal limit platform, and the longitudinal stroke section is inserted into the longitudinal limit opening.

5. The three-way fine-tuning mechanism according to claim 4, characterized in that: A second height limit seat is connected to the side of the base, a second height limit opening is opened on the second height limit seat, a third height limit platform and a fourth height limit platform are arranged on the second height adjustment threaded rod, a second height travel section is between the third height limit platform and the fourth height limit platform, and the second height travel section is inserted into the second height limit opening.

6. The three-way fine-tuning mechanism according to claim 5, characterized in that: The side surface of the base located at one end of the sliding groove is detachably connected with a transverse adjustment seat.

7. The three-way fine-tuning mechanism according to claim 6, characterized in that: The side surface of the transverse shift plate at one end of the longitudinal groove is detachably connected with a longitudinal adjustment seat.

8. The three-way fine-tuning mechanism according to claim 7, characterized in that: The transverse groove and the longitudinal groove are both dovetail groove structures.

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