CN210499499U - Aligning and leveling mechanism for workpiece precision measurement - Google Patents
Aligning and leveling mechanism for workpiece precision measurement Download PDFInfo
- Publication number
- CN210499499U CN210499499U CN201920482432.9U CN201920482432U CN210499499U CN 210499499 U CN210499499 U CN 210499499U CN 201920482432 U CN201920482432 U CN 201920482432U CN 210499499 U CN210499499 U CN 210499499U
- Authority
- CN
- China
- Prior art keywords
- threads
- aligning
- leveling
- precise
- connecting ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Measuring And Other Instruments (AREA)
Abstract
The utility model belongs to the technical field of the precision measurement, specifically be a aligning levelling mechanism for work piece precision measurement. Comprises a base, a precise adjustment thread fixing piece, a connecting ring and an object stage; the number of the precise adjusting threads and the precise adjusting thread fixing pieces is eight respectively, and the precise adjusting threads are fixed on the connecting ring; the eight precise adjusting threads are divided into two groups, each group comprises four threads, and the four threads are respectively used for aligning and leveling; the fixing of the base, the connecting ring and the objective table can be realized through the fine adjustment threads. The utility model discloses integrate the coplanar with the accurate adjustment screw thread of aligning, leveling, reduced traditional adjustment mechanism's thickness, avoided the not enough and shortcoming of small range of rigidity of flexible hinge mode, when reducing the system complexity, still can improve the system and detect the precision, provide fine solution to the measurement process of solid of revolution work piece.
Description
Technical Field
The utility model belongs to the technical field of the precision measurement, concretely relates to aligning levelling mechanism for work piece precision measurement.
Background
With the machining of the machining industry, the feeding precision and the machining precision of a machine tool have gradually realized an ultra-precision layer, and an ultra-precision detection technology is required to be matched with the feeding precision and the machining precision. The development of a set of ultra-precise detection system suitable for workpiece precision measurement meets the requirement of advanced manufacturing, can not only meet the requirement of revolving body workpiece positioning in the ultra-precise detection system, but also has important social significance.
At present, the home and abroad centering and leveling mechanism is mainly applied to a roundness measuring instrument and can also be applied to an ultra-precise detection system for measuring a revolving body in the same way. The aligning and leveling mechanism appearing in the market mainly has two modes: electrical adjustment and manual adjustment. At present, manufacturers using electric adjustment mainly import products abroad, such as Taylor Hobson company in England, and although the electric adjustment platform is simple in adjustment process and high in automation degree, the structure is complex, the installation and debugging process is extremely complicated, the cost is high, and the electric adjustment platform is not suitable for large-scale popularization. Domestic aligning levelling mechanism generally adopts the mode of manual regulation, and domestic manual regulation platform also divide into two kinds at present: one is that the centering and leveling are designed into a two-layer structure, which is large in weight and height, and has a large influence on the precision when measuring a workpiece; the other is a flexible hinge, which can greatly reduce the number of conventional kinematic pairs and components, but is limited by the strength of the deformation element, resulting in limited stroke and poor rigidity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, but measurement accuracy is high be used for work piece precision measurement's aligning levelling mechanism.
The utility model provides a self-aligning leveling mechanism for work piece precision measurement not only can reduce traditional motion pair and component figure by a wide margin, when having considerable stroke and rigidity, has still shortened self-aligning leveling mechanism's height to shorten the height of ultra-precision measurement system and solid of revolution work piece, improve measuring precision.
The utility model provides a self-aligning leveling mechanism for precision measurement of workpieces, which mainly comprises a base, a connecting ring, a precision adjusting screw thread fixing piece and an objective table; the base and the object stage are circular, the object stage is arranged above the base and concentric, a groove is formed between the object stage and the base at the outer edge, and the connecting ring is a circular ring and is positioned in the groove at the outer edge of the base. The number of the precise adjusting threads and the precise adjusting thread fixing pieces is eight respectively, and the precise adjusting threads are fixed on the connecting ring; the eight precise adjusting threads are divided into two groups, each group comprises four threads, and the four threads are respectively used for aligning and leveling; specifically, four aligning precise adjusting threads (called aligning modules) and four leveling precise adjusting threads (called leveling modules) are arranged at equal intervals, namely the aligning precise adjusting threads and the leveling precise adjusting threads form an included angle of 45 degrees; the connecting ring is provided with a mounting hole position at the mounting position of the precise adjustment thread, the fixing piece is mounted in a matching way with the precise adjustment thread, and the fixing piece is mounted in the direction of the inner wall of the connecting ring; the connecting ring and the base are ensured to be fixed by four aligning precise adjusting threads, and the central lines of the connecting ring and the base are coaxial; the top end of the fine adjustment thread is contacted with the inclined wall of the base; in a similar way, the connecting ring and the objective table are ensured to be fixed by four leveling precise adjusting screws, and the central lines of the connecting ring, the base and the objective table are all coaxial.
In the utility model, four screws of the aligning module can be divided into two groups, wherein, one group is arranged at the 180-degree corresponding position for adjusting the unidirectional freedom degree in the horizontal direction and has the function of locking with single freedom degree; the four leveling fine adjusting screws are also divided into two small groups, wherein one small group is arranged at the corresponding position of 180 degrees and is used for adjusting one degree of freedom in the inclination direction, and meanwhile, the four leveling fine adjusting screws also have the function of locking in one degree of freedom.
The utility model discloses in, the contact surface of accurate regulation screw thread and mechanism all can carry out the case hardening to guarantee sufficient rigidity.
Owing to adopted like above-mentioned technical scheme, the utility model discloses have following superiority:
1. the aligning module and the leveling module are in the same plane, so that the functions of aligning and leveling in a single section are realized;
2. because the aligning module and the leveling module are on the same plane, the height of the adjusting mechanism is greatly shortened, and the overall height of the rotary workpiece in the measuring process is reduced, so that the precision of the workpiece in the measuring process is improved;
3. the fine adjustment function of aligning and leveling can be realized by using the precise adjustment threads with higher precision;
4. the device has simple integral structure and is easy to assemble.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of fig. 1 taken from the center line.
Fig. 3 is a functional schematic diagram of the aligning leveling mechanism.
Reference numbers in the figures: 1-a base; 2-connecting rings; 3-fine adjustment of the thread; 4-precisely adjusting the threaded fastener; 5-an objective table.
Detailed Description
With reference to fig. 1 and 2, the aligning and leveling mechanism for precision measurement of workpieces of the present invention mainly comprises a base 1, a connecting ring 2, a precision adjusting screw thread 3, a precision adjusting screw thread fixing member 4, and an objective table 5. As can be seen from fig. 3, the eight precise adjustment threads 3 are divided into two groups, each group includes four precise adjustment threads, and the functions of aligning and leveling are respectively realized, specifically, the four precise adjustment threads (called as aligning modules) for aligning and the four precise adjustment threads (called as leveling modules) for leveling are arranged at equal intervals, that is, the precise adjustment threads for aligning and the precise adjustment threads for leveling form an included angle of 45 degrees; wherein the connecting ring 2 is provided with a mounting hole position at the mounting position of the precision adjusting thread 3, the fixing piece 4 is mounted in cooperation with the precision adjusting thread 3, and the fixing piece 4 is mounted in the inner wall direction of the connecting ring 2. The connection ring 2 is fixed with the base 1 and is ensured by four aligning precise adjusting threads 3, the top ends of the precise adjusting threads 3 are contacted with the inclined wall of the base 1, it needs to be noted that the contact part of a workpiece and the threads needs to be subjected to local surface hardening treatment, so that the rigidity is ensured, four screws of the aligning module can be divided into two groups, wherein the installation position is 180 degrees, each group can realize the unidirectional adjustment freedom degree in the horizontal direction, and the four screws also have the function of locking the single freedom degree, and in the installation process, the central line of the connection ring and the base are ensured to be coaxial as much as possible. Similarly, the connection ring 2 and the object stage 5 are fixed by four precise adjusting screws 3 of the leveling module, and the two groups are two groups, wherein the group is arranged at 180 degrees, each group can realize the adjustment of one degree of freedom in the inclination direction, and simultaneously can realize the function of single-degree-of-freedom locking.
The utility model relates to a self-aligning leveling mechanism with four degrees of freedom regulatory functions, four degrees of freedom adjust to realize through a self-aligning module and a leveling module respectively. In the leveling module, the contact surface of the base 1 and the precision adjusting threads 3 is a movable fulcrum, two precision adjusting threads 3 which are 180 degrees are installed in the aligning module, locking of the connecting ring 2 and the base 1 and fine adjustment of a certain degree of freedom can be realized, and the other degree of freedom can be adjusted by adjusting the other two precision adjusting threads 3, so that the aligning function of the adjusting mechanism is realized. After the aligning is completed, the aligning module and the connecting ring 2 can be locked, two precise adjusting threads 3 which are 180 degrees are installed in the adjusting and leveling module, the locking of the connecting ring 2 and the objective table 5 and the fine adjustment of a certain angle degree of freedom can be realized, the leveling function of the adjusting mechanism can be realized by adjusting the other two precise adjusting threads 3, and the aligning and leveling function of the whole mechanism can be realized by adjusting and locking all the precise adjusting threads.
Claims (3)
1. A centering leveling mechanism for precision measurement of workpieces is characterized by comprising a base, a connecting ring, a precision adjusting thread fixing piece and an objective table; the base and the object stage are circular, the object stage is arranged above the base and concentric, a groove is formed between the object stage and the base at the outer edge, and the connecting ring is a circular ring and is positioned in the groove at the outer edge of the base; the number of the precise adjusting threads and the precise adjusting thread fixing pieces is eight respectively, and the precise adjusting threads are fixed on the connecting ring; the eight precise adjusting threads are divided into two groups, each group comprises four threads, and the four threads are respectively used for aligning and leveling; the four aligning precise adjusting threads and the four leveling precise adjusting threads are arranged at equal intervals, namely the aligning precise adjusting threads and the leveling precise adjusting threads form an included angle of 45 degrees; the connecting ring is provided with a mounting hole position at the mounting position of the precise adjustment thread, the fixing piece is mounted in a matching way with the precise adjustment thread, and the fixing piece is mounted in the direction of the inner wall of the connecting ring; the connecting ring and the base are ensured to be fixed by four aligning precise adjusting threads, and the central lines of the connecting ring and the base are coaxial; the top end of the fine adjustment thread is contacted with the inclined wall of the base; in a similar way, the connecting ring and the objective table are ensured to be fixed by four leveling precise adjusting screws, and the central lines of the connecting ring, the base and the objective table are all coaxial.
2. The aligning and leveling mechanism for precision measurement of workpieces as claimed in claim 1, wherein the four screws of the aligning module are divided into two small groups, wherein one group is at a 180 ° corresponding position for one-directional freedom adjustment in the horizontal direction, and the mechanism has a single-degree-of-freedom locking function;
the four leveling precise adjusting screws are also divided into two small groups, wherein one small group is arranged at the 180-degree corresponding position and is used for adjusting one degree of freedom in the inclination direction, and the four leveling precise adjusting screws have the function of locking with one degree of freedom.
3. The aligning and leveling mechanism for precision measurement of workpieces as recited in claim 1, wherein the contact surface of the precision adjusting screw thread and the mechanism is subjected to surface hardening treatment to ensure sufficient rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920482432.9U CN210499499U (en) | 2019-04-11 | 2019-04-11 | Aligning and leveling mechanism for workpiece precision measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920482432.9U CN210499499U (en) | 2019-04-11 | 2019-04-11 | Aligning and leveling mechanism for workpiece precision measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210499499U true CN210499499U (en) | 2020-05-12 |
Family
ID=70541878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920482432.9U Active CN210499499U (en) | 2019-04-11 | 2019-04-11 | Aligning and leveling mechanism for workpiece precision measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210499499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064970A (en) * | 2019-04-11 | 2019-07-30 | 复旦大学 | A kind of aligning and leveling mechanism for workpiece accurate measurement |
-
2019
- 2019-04-11 CN CN201920482432.9U patent/CN210499499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064970A (en) * | 2019-04-11 | 2019-07-30 | 复旦大学 | A kind of aligning and leveling mechanism for workpiece accurate measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110919339B (en) | High-precision screw locking and positioning device | |
| CN104316396A (en) | XYZ triaxial centering regulating device for mechanical testing machine | |
| CN203317105U (en) | Repeatable positioning fixture for turning | |
| CN101774051A (en) | Inclined hole electrosparking processing device and method for adjusting position and angle of electrode | |
| CN110103074B (en) | Hollow aligning and leveling mechanism based on hinge structure | |
| CN210499499U (en) | Aligning and leveling mechanism for workpiece precision measurement | |
| CN111421355A (en) | Annular thin plate machining tool and fixing method | |
| CN108907901B (en) | Precision grinding method for eccentric circle of crank shaft and special eccentric tool clamp | |
| CN208556234U (en) | The continuous wire-electrode cutting device of harmonic reducer flexible wheel tooth form | |
| CN210360582U (en) | Hollow centering and leveling mechanism based on hinge structure | |
| US6701815B2 (en) | Device for positionally-accurate accommodation of a secondary member on a carrier | |
| CN116872108A (en) | Planet roller screw pair profiler detection platform mounting fixture | |
| CN204228053U (en) | Automobile control arm mandrel detects special tooling | |
| CN208496985U (en) | A kind of robot cylinder cap turns line positioning mechanism | |
| CN217762769U (en) | Camera adjusting and fixing device | |
| CN107097102B (en) | Sensor clamp | |
| CN113579750B (en) | Speed reducer semi-camshaft accompanying tool | |
| CN204177668U (en) | A kind of XYZ tri-shaft assignment regulating device of mechanics machine | |
| CN202025019U (en) | Testing position pedestal adjusting device of rotary table type sorting apparatus | |
| CN205156880U (en) | Automatic calibration concentricity equipment | |
| CN210025007U (en) | Flat XY theta manual fine tuning platform and display panel test fixture | |
| CN105773491A (en) | Positioning fixture for assembling curved-surface thin plate type parts | |
| CN208117300U (en) | It is a kind of for processing the frock clamp of ring spinner deadlight plane and hole | |
| CN104858680A (en) | High-accuracy tool clamp easy to operate | |
| CN208246418U (en) | A kind of index dial |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |