CN219400247U

CN219400247U - Precision workbench for detection

Info

Publication number: CN219400247U
Application number: CN202221636996.1U
Authority: CN
Inventors: 谢泽兵; 郑立京; 阮毅
Original assignee: Guangdong Machinery Research Institute Co ltd
Current assignee: Guangdong Machinery Research Institute Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-07-25
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a precision workbench for detection, which comprises: the device comprises a base assembly, a swing angle mechanism assembly arranged on the base assembly and a rotary table assembly arranged on the swing angle mechanism assembly; the top surface of revolving stage subassembly is used for fixed workpiece to be measured, and revolving stage subassembly is rotatory in the horizontal direction, can rotatory pivot angle between pivot angle mechanism subassembly and the base subassembly in the plane of perpendicular to horizontal plane, and horizontal direction and vertical direction combination form the detection space of workpiece to be measured, accomplish the placing of workpiece to be measured in arbitrary dimension, arbitrary axial and arbitrary angle in the detection space. The utility model solves the problem of difficult detection of complex workpieces.

Description

Precision workbench for detection

Technical Field

The utility model relates to the field of product quality inspection and detection, in particular to a precision workbench for detection.

Background

With the progress of technology, more and more products are developed towards miniaturization, integration and precision, and meanwhile, the complexity and the precision of parts of the products are accompanied. Such parts as a turbine, a universal valve body, a die core with a concave structure, a spherical polyhedron and the like have complex appearance and high dimensional accuracy requirements of positions, and are generally processed at one time by a five-axis linkage processing center. In the field of product quality inspection, the detection of workpieces with complex structures and high precision requirements is generally required, but a common three-coordinate measuring instrument can only be used for detecting the size of three-dimensional positions of XYZ axes on a horizontal plane, and the image measuring instrument only can be used for detecting the size of two-dimensional positions of the XYZ axes on the horizontal plane, and can not be used for detecting the sizes of all the positions and the sizes of the workpieces by one-time operation against complex workpieces with reverse inclination angles, multidirectional shaft holes, spherical polyhedrons, turbine blades and the like. In the prior art, to detect the parts, only additional parts such as an indexing measuring seat or a five-axis measuring seat can be installed on the three-coordinate measuring instrument, but the measuring seats have the defects of high price, high use and maintenance requirements, configuration conditions of instruments and equipment, and the like, and are difficult to popularize and apply.

Disclosure of Invention

The utility model provides a precision workbench for detection, which solves the problem of difficult detection of complex workpieces.

The utility model adopts the following technical scheme:

a precision stage for inspection, comprising: the device comprises a base assembly, a swing angle mechanism assembly arranged on the base assembly and a rotary table assembly arranged on the swing angle mechanism assembly;

the top surface of revolving stage subassembly is used for fixed workpiece to be measured, and revolving stage subassembly is rotatory in the horizontal direction, can rotatory pivot angle between pivot angle mechanism subassembly and the base subassembly in the plane of perpendicular to horizontal plane, and horizontal direction and vertical direction combination form the detection space of workpiece to be measured, accomplish the workpiece to be measured and can rotate 360 along with revolving stage subassembly level in the detection space, and the pivot angle is 0-180 place.

Optionally, a hollow groove is formed in the swing angle mechanism assembly, a connecting block for connecting the bottom of the rotary table assembly is arranged in the hollow groove, two precise screws are longitudinally and transversely arranged in the horizontal direction, one end of each precise screw is movably connected with the side face of the connecting block, and the other free end of each precise screw extends out of the side wall of the swing angle mechanism assembly to rotationally adjust inward or outward displacement of the two precise screws.

Optionally, an empty slot is arranged in the swing angle mechanism assembly, two motors are arranged in the empty slot, one motor drives the rotary table assembly to move horizontally and transversely, and the other motor drives the rotary table assembly to move horizontally and longitudinally.

Optionally, the swing angle mechanism component and the base component are connected through a hinge.

Optionally, two concave parts are arranged on the base component, a through hole is arranged on the protruding part between the two concave parts, a protruding part with a through hole is arranged on the swing angle mechanism component, the protruding parts and the protruding parts are arranged in a staggered manner, and the through hole of the protruding part are penetrated through by a shaft.

Further, the bottom surface of the rotary table assembly and the top surface of the swing angle mechanism assembly are movably connected through bolts and nuts.

Further, the bottom surface of the rotary table assembly and the top surface of the swing angle mechanism assembly are movably connected through a servo motor and a bearing.

Preferably, an angle gauge is arranged on the swing angle mechanism assembly or the rotary table assembly.

Preferably, the top surface of the rotary table assembly is provided with a T-shaped groove.

Compared with the prior art, the utility model has the beneficial effects that: the device has the advantages of novel and compact structure, simple and convenient operation, economy, practicality and convenient maintenance, can be used for detecting various precise workpieces such as turbines, universal valve bodies, die cores with concave structures, spherical polyhedrons and the like, can realize one-time clamping, can detect various angles, various directions and various dimensions, can be widely applied to various equipment and occasions such as three-coordinate measuring instruments, image measuring instruments and the like, and can carry out five-axis omnidirectional precise detection under the condition that the three-coordinate measuring instruments and the like do not add additional parts, so that the image measuring instruments have three-coordinate precise detection capability, and greatly expand the detection capability and detection precision of detection instrument equipment, and can be applied to other various geometric measurement methods.

Drawings

FIG. 1 is a schematic diagram of a front view of a precision workbench for detection according to an embodiment of the utility model;

FIG. 2 is a schematic view of the turntable assembly of FIG. 1 in an operational configuration rotated 45 degrees horizontally and 45 degrees in a plane perpendicular to the horizontal;

FIG. 3 is a schematic view of the swing angle mechanism assembly of FIG. 1 in a plane perpendicular to the horizontal plane, with a swing angle of 90 degrees in an operational state;

FIG. 4 is a top view schematic of the turntable assembly of FIG. 1 in an operational state rotated 45 degrees horizontally;

FIG. 5 is a schematic cross-sectional view of the swing angle mechanism assembly in a top view;

fig. 6 is a schematic structural view of another embodiment of the base assembly.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 4, a precision workbench for detection according to an embodiment of the present utility model includes a base assembly 1, a swing angle mechanism assembly 2 disposed on the base assembly 1, and a rotary table assembly 3 disposed on the swing angle mechanism assembly 2. The top of the rotary table assembly 3 is provided with a T-shaped groove for fixing a workpiece, the bottom of the rotary table assembly 3 is connected with the top of the swing angle mechanism assembly 2 through a precise bolt and nut device, so that the rotary table assembly 3 can rotate 360 degrees in the horizontal direction, and optionally, the bottom of the rotary table assembly 3 is connected with the top of the swing angle mechanism assembly 2 through a servo motor and a bearing. The base component 1 and the swing angle mechanism component 2 are connected through a hinge, the swing angle mechanism component 2 and the rotary table component 3 are driven to turn over by taking the hinge shaft as a central shaft in a plane vertical to the horizontal plane, and the swing angle range is 0-180 degrees. When the device works, the bottom of the base component 1 of the precision workbench is fixed on the working table surface of the detection instrument, the detection mechanism of the three-dimensional measuring instrument or the image measuring instrument is arranged above the precision workbench, the swing angle mechanism component 2 and the rotary table component 3 can respectively act, can also simultaneously rotate and swing, can realize the combination of the horizontal direction and the vertical direction to form the detection space of a workpiece to be detected, and can finish the placement of the workpiece to be detected in any dimension, any axial direction and any angle in the detection space so as to meet the detection requirement of the three-dimensional position of the XYZ axis of the three-dimensional measuring instrument on the linear path of the workpiece to be detected, and also can meet the detection requirement of the image measuring instrument on the placement state of the workpiece only on the horizontal plane of the XY axis of the three-dimensional position of the three-dimensional measuring instrument, thereby achieving the detection and detection of various precision workpieces such as turbines, universal valve bodies, die cores with concave structures, spherical polyhedrons and the like.

Referring to fig. 5, a hollow groove 21 is formed in the swing angle mechanism assembly 2, a hole 22 is formed in a side wall of the hollow groove, two precise screw mechanisms 4 are longitudinally and transversely arranged in the horizontal direction and are in threaded connection with the hole, the bottoms of the two precise screw mechanisms 4 are respectively fixedly connected with the bottom of the rotary table assembly 3 through a connecting block 23 accommodated in the hollow groove, one end of each precise screw mechanism 4 is movably connected with the side surface of the connecting block, the other free end of each precise screw mechanism 4 extends out from the side wall of the swing angle mechanism assembly 2, and inward or outward displacement of the two precise screw mechanisms 4 is regulated by rotation, so that the rotary table assembly 3 connected with the connecting block is driven to displace.

Optionally, the connecting block is movably connected with the rotary table assembly 3 through a precise screw rod and a nut, so that the rotary table assembly 3 can rotate 360 degrees in the horizontal direction.

When the device works, the large movement of the workpiece to be measured is finished through the rotation movement of the rotary table assembly 3 and the swinging movement of the swinging angle mechanism assembly 2 around the hinge shaft, and then the free ends of the two precise screw machines are manually rotated, so that the rotary table assembly 3 moves slightly in the longitudinal and transverse resultant force directions.

Optionally, in another embodiment of micro-moving the rotating table assembly 3 on the swing angle mechanism assembly 2, an empty groove is formed in the swing angle mechanism assembly 2, two motors are arranged in the empty groove, the two motors are respectively connected with the rotating table assembly 3 in a driving mode, one motor drives the rotating table assembly 3 to move horizontally and transversely, the other motor drives the rotating table assembly 3 to move horizontally and longitudinally, and when the rotating table assembly 3 works, only one motor works, so that the rotating table assembly 3 moves horizontally and transversely or longitudinally.

Referring to fig. 6, an alternative way of connecting the base assembly 1 to the swing angle mechanism assembly 2 is: two concave parts 11 are arranged on the base component 1, a through hole 121 is arranged on a protruding part 12 between the two concave parts, a protruding part 24 is arranged on the swing angle mechanism component 2 corresponding to the concave part, a through hole is arranged on the protruding part, and one shaft penetrates through the through hole 121 of the protruding part and the through hole of the protruding part, so that the base component 1 is connected with the swing angle mechanism component 2, the base component 1 and the swing angle mechanism component 2 can be tightly stacked together through the concave-convex arrangement, the stability of the rotary table component 3 and a workpiece is guaranteed, and the whole structure is compact.

And an angle gauge is arranged on the side wall of the swing angle mechanism assembly 2 or the side wall of the rotary table assembly 3 and used for measuring the overturning angle of the rotary table assembly 3 in a plane perpendicular to the horizontal plane, so that the measurement accuracy is further improved.

In another embodiment, referring to fig. 1, the universal precision workbench for detection provided by the utility model comprises a component 1 base, a component 2 swing angle mechanism, a component 3 rotary table, a precision screw mechanism 4 and an angle gauge 5. When the workbench is used, the workbench can be placed and fixed on a workbench surface of a detection instrument, such as a workbench of a three-seat measuring instrument. The universal precision workbench for detection is wide in the bottom of the base of the component 1, and can be conveniently fixed on a workbench surface of a detection instrument by adopting a pressing plate.

Referring to fig. 4, in the universal precision workbench provided by the utility model, a rotating table of an assembly 3 is arranged on a swinging angle mechanism of the assembly 2, the assembly 3 can rotate 360 degrees in the horizontal direction, and a T-shaped groove is formed in the assembly 3 and is used for fixing a workpiece. During operation, the workpiece to be detected is fixed on the assembly 3, and the rotating assembly 3 can detect the shape, position and size of the workpiece in any horizontal angle.

Referring to fig. 2-3, the universal precision workbench provided by the utility model has the advantages that the swing angle mechanism of the component 2 is arranged on the base of the component 1, the angle gauge 5 is arranged between the component 2 and the component 1, and 2 precision screw mechanisms are arranged in the component 2. During operation, the workpiece to be measured can swing by means of the component 2 within the range of 90 degrees in the vertical direction, the precise positioning of the swing angle can be realized by means of the angle gauge 5, and meanwhile, the workpiece to be measured can be precisely positioned by means of 2 precise screw mechanisms in the longitudinal direction and the transverse direction.

Referring to fig. 2, the universal precision workbench provided by the utility model can be used for respectively moving the components 2 and 3, and simultaneously rotating, swinging and displacing, so that precision measurement operation of any dimension, any axial direction and any angle of the work to be measured in space can be realized.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims

1. A precision bench for inspection, comprising: the device comprises a base assembly, a swing angle mechanism assembly arranged on the base assembly and a rotary table assembly arranged on the swing angle mechanism assembly;

2. The precision table for inspection according to claim 1, wherein a hollow groove is provided in the swing mechanism assembly, in which a connection block for connecting the bottom of the turntable assembly is accommodated, two precision screws are provided longitudinally and laterally in a horizontal direction, one end of which is movably connected to a side surface of the connection block, and the other free end of which protrudes from a side wall portion of the swing mechanism assembly to rotatably adjust inward or outward displacements of the two precision screws.

3. The precision table for inspection according to claim 1, wherein a hollow groove is provided in the swing angle mechanism assembly, which accommodates two motors, one motor driving the rotary table assembly to move horizontally and the other motor driving the rotary table assembly to move horizontally and longitudinally.

4. The precision bench for inspection according to claim 1 wherein said swing mechanism assembly is connected to said base assembly by a hinge.

5. The precision table for inspection according to claim 1, wherein the base member is provided with two recesses, the protruding portion between the two recesses is provided with a through hole, the swing mechanism member is provided with protruding portions with through holes, the protruding portions and the protruding portions are arranged in a staggered manner, and the through holes of the protruding portions are penetrated by a shaft.

6. The precision table for inspection according to claim 1, wherein the bottom surface of the rotary table assembly and the top surface of the swing angle mechanism assembly are movably connected by bolts and nuts.

7. The precision table for inspection according to claim 1, wherein the bottom surface of the turntable assembly and the top surface of the swing angle mechanism assembly are movably connected by a servo motor and a bearing.

8. The precision table for inspection according to claim 1, wherein an angle gauge is provided on the swing angle mechanism assembly or the rotary table assembly.

9. The precision table for inspection according to claim 1, wherein the top surface of the turntable assembly is provided with a T-shaped slot.