Leveling structure for table glass of image measuring machine

Abstract

The utility model discloses a table board glass leveling structure of an image measuring machine. The table board glass leveling structure comprises a base, a lower workbench, a middle workbench, an upper workbench and table board glass which are sequentially arranged from bottom to top. Wherein a containing groove with an opening in the upper end is formed in the middle of the upper working table, the table top glass is arranged in the containing groove in a matched mode, the four corners of the containing groove extend outwards to form mounting holes, elastic pieces are contained in the mounting holes, the four corners of the bottom end of the table top glass are correspondingly connected to the upper edges of the four elastic pieces in a lap joint mode, and the elastic pieces are arranged on the table top glass. Adjusting bolts are in lap joint with the edges of the four corners of the upper end of the table top glass respectively. According to the utility model, on the basis of using the high-precision cross guide rail, the workbench with high processing requirements and the base, the flatness of the processed table glass is compensated by adjusting the vertical height of the adjusting bolt, so that the requirement of the whole table glass on the Z-axis perpendicularity can be quickly met, and the precision of the subsequent height measurement of the image measuring machine is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of image measuring machines, in particular to a table glass leveling structure for an image measuring machine. Background Art

[0002] Automatic image measuring machines are based on digital image measuring instruments and incorporate machine vision-based automatic edge extraction, automatic deburring, and automatic measurement synthesis. These machines offer exceptional capabilities, including point-to-point automatic measurement, CNC positioning and automatic measurement, and automatic learning and batch measurement. They are essential metrology and testing equipment for metrology labs, laboratories, and production workshops in industries such as machinery, electronics, instrumentation, clocks, light industry, and plastics, as well as in universities, research institutes, and metrology and verification departments.

[0003] When measuring multiple identical workpieces or the same height measurement element of the same workpiece, a general image measuring machine often only needs to move in the X and Y directions, while the Z direction remains unchanged. At this time, the image must be basically clear. Therefore, there are certain flatness requirements for the workpiece placement platform, that is, the table glass. Affected by the processing accuracy of the glass itself and the processing accuracy and assembly process of the machine hardware, the verticality of the table glass to the Z axis may not meet the requirements, which will affect the subsequent measurement accuracy of the image measuring machine.

[0004] In order to solve the above problems, a table glass leveling structure for an image measuring machine is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a glass leveling structure for a table of an image measuring machine in order to solve the above-mentioned problem.

[0006] The technical solution adopted by the utility model is as follows: a table glass leveling structure for an image measuring machine, comprising a base, a lower workbench, a middle workbench, an upper workbench and a table glass arranged in sequence from bottom to top; wherein, the middle portion of the upper workbench has a receiving groove with an upper end open, the table glass is adapted to be arranged in the receiving groove, the four corners of the receiving groove extend outward to form mounting holes, an elastic member is accommodated inside the mounting hole, the four bottom corners of the table glass are correspondingly overlapped on the upper edges of the four elastic members, the four upper corner edges of the table glass are respectively overlapped with adjusting bolts, the adjusting bolts pass through the elastic member and are installed in the mounting holes.

[0007] In a preferred embodiment, a threaded hole adapted for the adjusting bolt is formed at the bottom of the mounting hole.

[0008] In a preferred embodiment, the lower workbench is fixed to the base by a plurality of hexagon socket bolts, and the upper end surface of the lower workbench is symmetrically provided with a lower step groove along the X-axis direction. An X-axis cross guide rail is detachably installed in the lower step groove, and the movable part of the X-axis cross guide rail is detachably installed in the slot reserved at the bottom of the middle workbench.

[0009] In a preferred embodiment, the upper end surface of the middle workbench is symmetrically provided with an upper step groove along the Y-axis direction, and a Y-axis cross guide rail is detachably installed in the upper step groove, and the movable part of the Y-axis cross guide rail is detachably installed in the second slot reserved at the bottom of the upper workbench.

[0010] In a preferred embodiment, the elastic member is a butterfly spring, and the bolt head of the adjusting bolt is larger than the diameter of the through hole in the center of the butterfly spring.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: the present invention designs an elastic adjustment structure between the table glass and the upper workbench. When adjusting the Z-axis verticality of the table glass, it is only necessary to adjust the upper and lower heights of the adjusting bolts. After the adjustment, the elastic part deforms accordingly and drives the table glass to move up and down, which can compensate for the flatness of the table glass after processing and can quickly meet the Z-axis verticality requirements of the entire table glass, thereby ensuring the accuracy of the subsequent height measurement of the image measuring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the exploded three-dimensional structure of the utility model as a whole;

[0013] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0014] Markings in the figure: 1-base, 2-lower workbench, 3-X-axis cross guide, 4-middle workbench, 5-Y-axis cross guide, 6-upper workbench, 601-mounting hole, 602-accommodation slot, 7-table glass, 8-adjusting bolt, 9-elastic part. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] Reference Figure 1-2A glass leveling structure for an image measuring machine table comprises a base 1, a lower workbench 2, a middle workbench 4, an upper workbench 6 and a table glass 7 arranged in sequence from bottom to top; wherein, the middle portion of the upper workbench 6 has a receiving groove 602 with an upper end opening, the table glass 7 is adapted to be arranged in the receiving groove 602, the four corners of the receiving groove 602 extend outward to form mounting holes 601, the mounting holes 601 contain elastic members 9, the bottom four corners of the table glass 7 are correspondingly overlapped with the upper edges of the four elastic members 9, and the upper four corners of the table glass 7 are respectively overlapped with Adjusting bolt 8, adjusting bolt 8 passes through elastic member 9 and is installed in mounting hole 601. An elastic adjustment structure is designed between table glass 7 and upper workbench 6. When adjusting the Z-axis verticality of table glass 7, it is only necessary to adjust the up and down height of adjusting bolt 8. After adjustment, elastic member 9 deforms (rebounds) due to its own elasticity and drives table glass 7 up and down, which can compensate for the flatness of table glass 7 after processing and can quickly meet the Z-axis verticality requirement of the entire table glass 7, thereby ensuring the accuracy of subsequent height measurement by image measuring machine.

[0017] It should be mentioned that before adjusting the Z-axis verticality of the table glass 7, a dial indicator, micrometer (not shown in the figure) or other instrument capable of measuring the Z-axis verticality can be installed on the main body of the image measuring machine or other positions, so that the adjustment data can be viewed in real time during adjustment to ensure the accuracy after adjustment. This will not be elaborated here.

[0018] Furthermore, a threaded hole adapted for the adjusting bolt 8 is provided at the bottom of the mounting hole 601 , and the feeding depth of the adjusting bolt 8 can be adjusted up and down through the threaded hole, thereby achieving adjustment of the Z-axis verticality of the table glass 7 .

[0019] Furthermore, the elastic member 9 is preferably a Φ6 butterfly spring, and the bolt head of the adjusting bolt 8 is larger than the through hole diameter in the center of the butterfly spring. The butterfly spring has high stiffness and strong buffering and vibration absorption capabilities. It can withstand large loads with small deformation and is suitable for occasions where small axial space requirements are required.

[0020] Furthermore, the lower workbench 2 is fixed to the base 1 by a plurality of hexagon socket bolts, and the upper end surface of the lower workbench 2 is symmetrically provided with a lower step groove along the X-axis direction, and the X-axis cross guide rail 3 is detachably installed in the lower step groove, and the movable part of the X-axis cross guide rail 3 is detachably installed in the slot reserved at the bottom of the middle workbench 4, and the upper end surface of the middle workbench 4 is symmetrically provided with an upper step groove along the Y-axis direction, and the Y-axis cross guide rail 5 is detachably installed in the upper step groove, and the movable part of the Y-axis cross guide rail 5 is detachably installed in the second slot reserved at the bottom of the upper workbench 6. By cooperating with the X-axis cross guide rail 3 and the Y-axis cross guide rail 5, the X-axis and Y-axis positions of the upper workbench 6 and the table glass 7 can be adjusted accordingly.

[0021] Preferably, the size of the hexagon socket bolt is M8×35, and the lower workbench 2, the middle workbench 4 and the X-axis cross guide 3, as well as the middle workbench 4, the upper workbench 6 and the Y-axis cross guide 5 are fixed with M8×35 cylindrical head hexagon socket bolts.

[0022] Among them, the cross guide rail is an existing technology that has been realized, and the specific method of realizing relative movement will not be described in detail here.

[0023] In summary, an elastic adjustment structure is designed between the table glass 7 and the upper workbench 6. When adjusting the Z-axis verticality of the table glass 7, it is only necessary to adjust the upper and lower heights of the adjusting bolts 8. After the adjustment, the elastic member 9 will deform accordingly and drive the table glass 7 up and down, which can compensate for the flatness of the table glass 7 after processing and quickly meet the requirements of the Z-axis verticality of the entire table glass 7.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A glass leveling structure for an image measuring machine table, characterized in that: It includes a base, a lower workbench, a middle workbench, an upper workbench and a table glass arranged in sequence from bottom to top; wherein, the middle part of the upper workbench has a receiving groove with an upper end opening, the table glass is adapted to be arranged in the receiving groove, and the four corners of the receiving groove extend outward to form mounting holes, and elastic parts are accommodated inside the mounting holes, and the four bottom corners of the table glass are correspondingly overlapped with the upper edges of the four elastic parts, and the four upper corner edges of the table glass are respectively overlapped with adjusting bolts, and the adjusting bolts pass through the elastic parts and are installed in the mounting holes.

2. The image measuring machine table glass leveling structure according to claim 1, characterized in that: A threaded hole adapted for the adjusting bolt is provided at the bottom of the mounting hole.

3. The image measuring machine table glass leveling structure according to claim 1, characterized in that: The lower workbench is fixed to the base by a plurality of hexagon socket bolts. The upper end surface of the lower workbench is symmetrically provided with a lower step groove along the X-axis direction. An X-axis cross guide rail is detachably installed in the lower step groove. The movable part of the X-axis cross guide rail is detachably installed in the slot reserved at the bottom of the middle workbench.

4. The image measuring machine table glass leveling structure according to claim 1, characterized in that: An upper step groove is symmetrically provided on the upper end surface of the middle workbench along the Y-axis direction, and a Y-axis cross guide rail is detachably installed in the upper step groove. The movable part of the Y-axis cross guide rail is detachably installed in the second slot reserved at the bottom of the upper workbench.

5. The image measuring machine table glass leveling structure according to claim 1, characterized in that: The elastic member is a butterfly spring, and the bolt head of the adjusting bolt is larger than the diameter of the through hole in the center of the butterfly spring.

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