CN113884030B - High-precision flatness detection equipment - Google Patents
High-precision flatness detection equipment Download PDFInfo
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- CN113884030B CN113884030B CN202111020125.7A CN202111020125A CN113884030B CN 113884030 B CN113884030 B CN 113884030B CN 202111020125 A CN202111020125 A CN 202111020125A CN 113884030 B CN113884030 B CN 113884030B
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- 238000001514 detection method Methods 0.000 title claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
Abstract
The invention discloses a high-precision flatness detection device, which comprises: the device comprises a workbench, a driving mechanism and a detection head, wherein a detection table top is arranged on the workbench, guide rails which are vertically distributed are arranged on the detection table top along two adjacent side edges, and a plurality of slidable positioning assemblies are arranged on the guide rails; the driving mechanism comprises a first linear module and a second linear module which are distributed vertically, the second linear module is fixedly arranged on the workbench, and the first linear module is slidably arranged on the workbench and is positioned above the detection table top; the detection head is slidably mounted on the first linear module through the height adjusting mechanism, and the first linear module and the second linear module are matched together to drive the detection head to move so as to conduct line scanning detection on products positioned in the product positioning jig. The flatness detection equipment can improve detection efficiency, ensure detection precision and effectively ensure product quality.
Description
Technical Field
The invention relates to the technical field of product detection equipment, in particular to high-precision flatness detection equipment.
Background
With the entering of the digital age, display technology is rapidly developed, and in order to meet the use requirement, the use experience is improved, and the requirements on a display are also higher. The backlight module is an important component for providing a surface light source for the display, and the quality of the backlight module is directly related to the quality of the display. Because the backlight module is easy to have the defect of uneven surface caused by warpage in the production and processing process, before the product leaves the factory, flatness detection is required to be carried out on the product, and display quality is ensured to be over-closed
At present, the prior art for detecting the flatness of the product is generally finished by adopting a manual detection mode, so that the labor cost is increased, the efficiency is low, the accuracy is low, and the risk that defective products flow into the market is easily caused. Accordingly, there is a need for improvements in the art that overcome the shortcomings of the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides high-precision flatness detection equipment, which can improve the detection efficiency, save the labor cost, ensure the detection precision and ensure the product quality effectively.
The technical scheme adopted by the invention for solving the technical problems is as follows: the high-precision flatness detection equipment comprises a workbench, a driving mechanism and a detection head, wherein a detection table surface is arranged on the workbench, guide rails which are vertically distributed are arranged on the detection table surface along two adjacent side edges, a plurality of slidable positioning assemblies are arranged on the guide rails, and the positioning assemblies are used for positioning a product positioning jig placed on the detection table surface; the driving mechanism comprises a first linear module and a second linear module which are distributed vertically, the second linear module is fixedly arranged on the workbench, the first linear module is slidably arranged on the workbench and is positioned above the detection table, and the first linear module is connected with the second linear module and is driven to move by the second linear module; the detection head is slidably mounted on the first linear module through the height adjusting mechanism, and the first linear module and the second linear module are matched together to drive the detection head to move so as to conduct line scanning detection on products positioned in the product positioning jig.
As a further improvement of the invention, the positioning assembly comprises a first sliding block, a positioning block and a first locking mechanism, wherein the first sliding block is in sliding fit with the guide rail, the positioning block is arranged on the first sliding block through the first locking mechanism, and the first locking mechanism can relatively lock the first sliding block on the guide rail.
As a further development of the invention, the first locking mechanism comprises a fixed block and an eccentric wheel which is rotatably mounted on the fixed block and is located on one side of the guide rail, and the eccentric wheel can be made to abut against the guide rail on its side surface when rotated.
As a further improvement of the invention, the bottom of the fixed block is provided with an equal-height screw, the eccentric wheel is provided with an eccentric hole at a position deviating from the central shaft, and the equal-height screw penetrates through the eccentric hole and enables one end part of the equal-height screw to stop at the bottom of the eccentric wheel, so that the eccentric wheel can rotate around the equal-height screw.
As a further improvement of the invention, a stop screw is arranged in the fixed block just opposite to the eccentric wheel, one end of the stop screw is provided with a steel ball, and the top of the eccentric wheel is abutted against the steel ball.
As a further improvement of the invention, the workbench is slidably provided with the gantry bracket, a connecting plate is arranged between the bottoms of the two ends of the gantry bracket, the connecting plate is fixedly connected with the Y-axis moving platform of the second linear module, and the detection table top cover is arranged above the second linear module and the connecting plate.
As a further improvement of the invention, the two sides of the workbench, which are positioned on the detection table top, are provided with slide ways for the gantry support to move, and the slide ways are covered with protective covers which can move along with the gantry support and generate elastic deformation.
As a further improvement of the invention, the height adjusting mechanism comprises a fixed plate, an adjusting screw rod rotatably arranged on the fixed plate, a screw rod nut sleeved on the adjusting screw rod and a second sliding block, wherein a guide rod parallel to the adjusting screw rod is arranged on the fixed plate, the second sliding block is slidingly matched on the guide rod and fixedly connected with the screw rod nut, the detecting head is fixedly connected with the second sliding block, and the second sliding block can be driven to synchronously drive the detecting head to move along the vertical direction by rotating the adjusting screw rod through the screw rod nut.
As a further improvement of the invention, a second locking mechanism is arranged on the second sliding block, and the second locking mechanism comprises a handle screw which is arranged on the second sliding block in a threaded manner and one end of the handle screw is abutted against the guide rod.
As a further improvement of the invention, the first linear module and the second linear module are magnetic suspension linear modules; the detection head adopts a laser displacement sensor.
The beneficial effects of the invention are as follows:
1. the invention provides high-precision flatness detection equipment, wherein a first linear module and a second linear module which are mutually and vertically distributed are arranged on a workbench, a detection head moves under the joint driving of the first linear module and the second linear module to perform line scanning detection on a product positioned in a product positioning jig, so that the purpose of automatic detection is realized, the detection efficiency and the detection precision are greatly improved, the labor investment is reduced, and the cost is saved;
2. guide rails which are vertically distributed are arranged on the detection table top of the workbench along the adjacent two side edges, and the guide rails are provided with slidable positioning blocks, so that the two side edges of the positioning jig which is placed on the detection table top and used for positioning products are abutted against the corresponding positioning blocks by adjusting the positions of the positioning blocks on the guide rails, and the positioning jig is suitable for products with different sizes and has wide application range; the positioning blocks are provided with the positioning convex ribs, and at least two points on one side edge of the positioning jig are positioned through at least two positioning blocks on the same side guide rail, so that accurate positioning of products can be realized, and the accuracy of subsequent detection is ensured; the rotatable eccentric wheel is arranged at the same time, and the eccentric wheel is positioned at one side of the guide rail and enables the side surface of the eccentric wheel to be abutted against the guide rail to realize locking when rotating, so that the adjustment is convenient;
3. the height adjusting mechanism is arranged on the detection head, and the height of the detection head is adjusted when the adjusting screw rod is manually rotated, so that the detection equipment can be suitable for detecting products of different types, and the detection equipment has the advantages of simple structure, convenience in adjustment and cost saving;
4. the first linear module and the second linear module are magnetic suspension linear modules, so that the noise is low, and a comfortable working environment can be provided.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention with the inspection surface and its upper components removed;
FIG. 3 is a perspective view of a detection head and a height adjustment mechanism of the present invention;
FIG. 4 is a perspective view of a guide rail and positioning assembly of the present invention;
FIG. 5 is a perspective view of the positioning assembly of the present invention;
FIG. 6 is a cross-sectional view of a positioning assembly of the present invention;
fig. 7 is an exploded view of the positioning assembly of the present invention.
The following description is made with reference to the accompanying drawings:
1, a workbench; 101—a detection mesa;
2-a guide rail; 3-a first linear module;
4-a second linear module; 401-Y axis mobile platform;
5-a detection head; 6-a first slider;
7, positioning blocks; 701-positioning ribs;
8-a fixed block; 9-eccentric wheel;
901-eccentric holes; 10-a contour screw;
11-a stop screw; 12-steel ball;
13-gantry support; 14-connecting plate;
15-a protective cover; 16-a fixed plate;
17-an adjusting screw rod; 18—a screw nut;
19-a second slider; 20-a guide rod;
21-handle screw; 22-an adjustment handle.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a high-precision flatness detection apparatus, comprising: a workbench 1, a driving mechanism arranged on the workbench 1 and a detection head 5 driven to move by the driving mechanism. The workbench 1 is provided with a detection table top 101, and the detection table top 101 is used for placing and positioning a product positioning jig. The product positioning jig is used for placing and positioning the product to be detected. For ease of understanding, two side directions perpendicular to each other on the inspection stage 101 are defined as an X-axis and a Y-axis, respectively. The driving mechanism comprises a first linear module 3 and a second linear module 4 which are distributed vertically, wherein the first linear module 3 is arranged along the X-axis direction, and the second linear module 4 is arranged along the Y-axis direction. The second linear module 4 is fixedly installed on the workbench 1, the first linear module 3 is slidably installed on the workbench 1 and located above the detection table top 101, and the first linear module 3 is connected with the second linear module 4 and is driven by the second linear module 4 to move along the Y-axis direction. The detection head 5 is slidably mounted on the first linear module 3 through a height adjusting mechanism, and the first linear module 3 can drive the detection head 5 to move along the X-axis direction. Under the common cooperation of the first linear module 3 and the second linear module 4, the detection head 5 is driven to move to perform line scanning detection on the product positioned in the product positioning jig, so that the purpose of automatic detection is achieved, the detection efficiency is greatly improved, the labor input is reduced, and the cost is saved.
In this embodiment, the detection head 5 adopts a laser displacement sensor with the model number of LK-050, the detection head 5 is electrically connected to a computer, the product is detected in the moving process, detection data is transmitted to the computer, and the computer displays detection information on a display screen after processing the detection data, so that an operator can judge whether the flatness of the product is qualified.
Referring to fig. 1 and 2, a gantry bracket 13 is installed on a workbench 1, sliding rails are installed on the left and right sides of the workbench 1 along the Y axis, bottoms of two ends of the gantry bracket 13 are slidably matched on the sliding rails through sliding blocks, and a second linear module 4 is located right below the center of the gantry bracket 13. A connecting plate 14 is arranged between the bottoms of the two ends of the gantry bracket 13, the connecting plate 14 is fixedly connected with the Y-axis moving platform 401 of the second linear module 4, and the detection table 101 is covered above the second linear module 4 and the connecting plate 14. The second linear module 4 adopts a magnetic suspension linear module, is provided with a rotor and a stator, the rotor and the stator are in clearance fit, the Y-axis moving platform 401 is fixedly connected with the rotor, and after the coil is electrified, a magnetic field is generated to drive the rotor to move along the stator, so that the gantry bracket 13 is driven to move along the Y-axis direction through the Y-axis moving platform 401. Because the rotor and the stator slide in a non-contact manner, compared with the traditional motor screw rod linear module, the noise generated is smaller, and a comfortable working environment can be provided.
Wherein, the two sides of the workbench 1, which are positioned on the detection table top 101, are provided with slide ways for the movement of the gantry bracket 13, the two sides, which are positioned on the slide ways and are transported by the gantry bracket 13, are covered with a protective cover 15, one end of the protective cover 15 is connected with the end part of the slide ways, and the other end is connected with the gantry bracket 13. The protection cover 15 is preferably an organ protection cover, and when the gantry bracket 13 is driven by the second linear module 4 to reciprocate along the Y-axis direction, the protection cover 15 can be pulled to generate elastic deformation to follow expansion or compression, so that the dustproof effect is achieved.
In addition, a code scanning gun is further installed on the gantry bracket 13, and when flatness detection is carried out on a product, the code scanning gun scans two-dimensional code information on the product, then the computer identifies the product information, and the product detection information is recorded so as to be convenient for tracing, for example, when the product is judged to be unqualified, the production time, batch and other information of the product can be judged through the product information.
Referring to fig. 2 and 3, the height adjusting mechanism includes a fixed plate 16, an adjusting screw 17, a screw nut 18, and a second slider 19. The fixed plate 16 is fixedly connected with an X-axis moving platform of the first linear module 3, the first linear module 3 is a magnetic suspension linear module, and the X-axis moving platform is driven to drive the height adjusting mechanism and the detection head 5 to reciprocate along the X-axis direction. The fixed plate 16 is provided with two opposite mounting seats up and down, and two ends of the adjusting screw 17 are respectively rotatably mounted on the two mounting seats along the vertical direction. Guide rods 20 are fixedly arranged on two sides of the adjusting screw rod 17 between the two mounting seats, and the left side and the right side of the second sliding block 19 are in sliding fit on the two guide rods 20. The second slide block 19 is provided with a middle hole along the vertical central shaft, the adjusting screw rod 17 is inserted into the middle hole, and the screw rod nut 18 is fixedly arranged on the middle hole of the second slide block 19 and sleeved on the adjusting screw rod 17. The detection head 5 is fixedly connected to the second slide block 19, when the adjustment is performed, the adjustment screw rod 17 is manually rotated, the rotation motion of the adjustment screw rod 17 is converted into linear motion through the screw rod nut 18 to drive the second slide block 19 to reciprocate up and down along the guide rod 20, and then the height of the detection head 5 is adjusted, so that the detection equipment can be suitable for detecting products of different types, and the detection device is simple in structure, convenient to adjust and cost-saving.
The bearings are arranged on the opposite sides of the two mounting seats, two ends of the adjusting screw rod 17 are respectively connected to the corresponding bearings, so that the stability of the rotating adjusting screw rod 17 can be improved, and the adjusting screw rod 17 can be limited in the vertical direction. The top of the adjusting screw 17 passes through the mounting seat positioned above and is provided with a handle so as to manually rotate the adjusting screw 17.
Referring to fig. 3, a second locking mechanism is installed on the second slider 19, after the adjustment is completed, the second slider 19 is locked on the guide rod 20 through the second locking mechanism, so that the deviation of the detection head 5 in the detection process is avoided, and the stability and reliability of the detection are ensured. Specifically, the second locking mechanism includes a handle screw 21, one side of the second slider 19 is provided with a threaded hole communicated to one of the guide rods 20, the handle screw 21 is installed in the threaded hole and one end of the handle screw is abutted against the guide rod 20, and the threaded rod portion of the handle screw 21 is screwed in or out of the threaded hole by rotating the handle screw 21 so as to lock or unlock the guide rod 20.
Referring to fig. 4 to 7, guide rails 2 are vertically distributed along two adjacent sides of the detection table 101, and raised blocks are mounted at the bottoms of the guide rails 2, wherein the width of each raised block is consistent with that of the guide rail 2. A plurality of slidable positioning components are arranged on the guide rail 2, and the positioning components are used for positioning a product positioning jig placed on the detection table 101. The positioning assembly comprises a first sliding block 6, a positioning block 7 and a first locking mechanism, wherein the first sliding block 6 is slidably matched on the guide rail 2, the positioning block 7 is installed on the first sliding block 6 through the first locking mechanism, and the first sliding block 6 can be locked on the guide rail 2 relatively through the first locking mechanism. The first locking mechanism comprises a fixed block 8 and an eccentric wheel 9, the positioning block 7 is arranged on the fixed block 8, and four first screws are used for fixing the top of the positioning block 7 along the front, back, left and right positions. The fixed block 8 is arranged on the first sliding block 6, and four second screws penetrate through the fixed block 8 to be fixed on the first sliding block 6 at the top of the positioning block 7, so that the accuracy and the firmness of the assembly of the positioning block 7 are ensured. The position of the positioning block 7 on the guide rail 2 is adjusted by sliding the first sliding block 6, so that two side edges of the product positioning jig placed on the detection table 101 are abutted against the corresponding positioning block 7, accurate positioning of a product is realized, product positioning operation is convenient, and accuracy of subsequent detection is guaranteed.
Referring to fig. 4 and 5, the eccentric wheel 9 is located at one side of the guide rail 2 and enables the side surface of the eccentric wheel to be abutted against the guide rail 2 when rotating, and the positioning block 7 is locked on the guide rail 2 under the condition that the eccentric wheel 9 and the guide rail 2 are mutually pressed and locked. By adopting the structural design, the eccentric wheel 9 is rotated towards one direction, so that the eccentric wheel 9 loosens the guide rail 2, and the first sliding block 6 can be pushed to slide on the guide rail 2 to adjust the position of the positioning block 7; through rotating eccentric wheel 9 towards the opposite direction, make eccentric wheel 9 locking guide rail 2, accomplish relatively fixed, it is very convenient to operate, improves work efficiency.
Referring to fig. 6 and 7, specifically, an equal-height screw 10 is mounted at the bottom of the fixed block 8, an eccentric hole 901 is formed at the position of the eccentric wheel 9 deviating from the central shaft, and the equal-height screw 10 penetrates through the eccentric hole 901 and makes one end portion thereof stop at the bottom of the eccentric wheel 9, so that the eccentric wheel 9 can rotate around the shaft portion of the equal-height screw 10. In addition, a stop screw 11 which is opposite to the top of the eccentric wheel 9 is arranged on one side of the equal-height screw 10 in the fixed block 8, a spherical arc-shaped groove is arranged at one end part of the stop screw 11, a steel ball 12 is arranged in the spherical arc-shaped groove, and the top of the eccentric wheel 9 is abutted against the steel ball 12. The steel balls 12 have the functions of supporting and reducing friction on the eccentric wheel 9, so that the eccentric wheel 9 rotates more stably and smoothly. Wherein, install adjustment handle 22 on the eccentric wheel 9, eccentric wheel 9 side is provided with the screw hole, and the one end screw thread fixed connection of adjustment handle 22 is in threaded hole, and adjustment handle 22 and eccentric wheel 9 vertical arrangement to promote eccentric wheel 9 rotation through adjustment handle 22, be convenient for adjust.
In this embodiment, the positioning block 7 is right-angled, and is provided with a positioning convex rib 701 on a vertical side along a vertical direction, and positions at least two points on a side edge of the product positioning jig through at least two positioning blocks 7 on the same side guide rail 2, so as to ensure the positioning accuracy. Four sections of the guide rail 2 distributed along the X axis on the detection table 101 are sequentially spliced and are provided with four positioning components, and two sections of the guide rail 2 distributed along the Y axis are sequentially spliced and are provided with two positioning components. The guide rail 2 adopts a sectional type, the machining error is small, and the accuracy is ensured by correcting through a correction meter during assembly. Meanwhile, the device is suitable for products with larger sizes and wide in application range.
Wherein, a plurality of truckles are installed to workstation 1 bottom, are convenient for remove workstation 1. Foot cups are arranged on the casters, and after the workbench 1 moves in place, the foot cups are adjusted to be supported on the ground.
Therefore, the high-precision flatness detection equipment is characterized in that the first linear module and the second linear module which are mutually vertically distributed are arranged on the workbench, the detection head moves under the joint driving of the first linear module and the second linear module to perform line scanning detection on a product positioned in the product positioning jig, the purpose of automatic detection is further realized, the detection efficiency and the detection precision are greatly improved, the labor investment is reduced, and the cost is saved; guide rails which are vertically distributed are arranged on the detection table top of the workbench along the adjacent two side edges, and the guide rails are provided with slidable positioning blocks, so that the two side edges of the positioning jig which is placed on the detection table top and used for positioning products are abutted against the corresponding positioning blocks by adjusting the positions of the positioning blocks on the guide rails, and the positioning jig is suitable for products with different sizes and has wide application range; the positioning blocks are provided with the positioning convex ribs, and at least two points on one side edge of the positioning jig are positioned through at least two positioning blocks on the same side guide rail, so that accurate positioning of products can be realized, and the accuracy of subsequent detection is ensured; the rotatable eccentric wheel is arranged at the same time, and the eccentric wheel is positioned at one side of the guide rail and enables the side surface of the eccentric wheel to be abutted against the guide rail to realize locking when rotating, so that the adjustment is convenient; the height adjusting mechanism is arranged on the detection head, and the height of the detection head is adjusted when the adjusting screw rod is manually rotated, so that the detection equipment can be suitable for detecting products of different types, and the detection equipment has the advantages of simple structure, convenience in adjustment and cost saving; the first linear module and the second linear module are magnetic suspension linear modules, so that the noise is low, and a comfortable working environment can be provided.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The foregoing description is only of a preferred embodiment of the invention, which can be practiced in many other ways than as described herein, so that the invention is not limited to the specific implementations disclosed above. While the foregoing disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention without departing from the technical solution of the present invention still falls within the scope of the technical solution of the present invention.
Claims (4)
1. A high-precision flatness detection apparatus, characterized by comprising:
the automatic detection device comprises a workbench (1), wherein a detection table top (101) is arranged on the workbench (1), guide rails (2) which are vertically distributed are arranged on the detection table top (101) along two adjacent side edges, a plurality of slidable positioning assemblies are arranged on the guide rails (2), and the positioning assemblies are used for positioning product positioning jigs placed on the detection table top (101);
the driving mechanism comprises a first linear module (3) and a second linear module (4) which are distributed vertically, the second linear module (4) is fixedly arranged on the workbench (1), the first linear module (3) is slidably arranged on the workbench (1) and is positioned above the detection table top (101), and the first linear module (3) is connected with the second linear module (4) and is driven to move by the second linear module (4);
the detection head (5) is slidably mounted on the first linear module (3) through a height adjusting mechanism, and the first linear module (3) and the second linear module (4) are matched together to drive the detection head (5) to move so as to perform line scanning detection on a product positioned in the product positioning jig; wherein,
the positioning assembly comprises a first sliding block (6), a positioning block (7) and a first locking mechanism, wherein the first sliding block (6) is in sliding fit with the guide rail (2), the positioning block (7) is arranged on the first sliding block (6) through the first locking mechanism, and the first locking mechanism can relatively lock the first sliding block (6) on the guide rail (2);
the first locking mechanism comprises a fixed block (8) and an eccentric wheel (9), the eccentric wheel (9) is rotatably arranged on the fixed block (8) and positioned on one side of the guide rail (2), and the side surface of the eccentric wheel (9) can be abutted against the guide rail (2) when the eccentric wheel rotates;
an equal-height screw (10) is arranged at the bottom of the fixed block (8), an eccentric hole (901) is formed in the position, deviating from the central shaft, of the eccentric wheel (9), the equal-height screw (10) penetrates through the eccentric hole (901) and enables one end of the equal-height screw to stop at the bottom of the eccentric wheel (9), and the eccentric wheel (9) can rotate around the equal-height screw (10);
a stop screw (11) is arranged in the fixed block (8) and opposite to the eccentric wheel (9), a steel ball (12) is arranged at one end part of the stop screw (11), and the top of the eccentric wheel (9) is propped against the steel ball (12);
the height adjusting mechanism comprises a fixed plate (16), an adjusting screw rod (17) rotatably mounted on the fixed plate (16), a screw rod nut (18) sleeved on the adjusting screw rod (17) and a second sliding block (19), a guide rod (20) parallel to the adjusting screw rod (17) is mounted on the fixed plate (16), the second sliding block (19) is slidingly matched on the guide rod (20) and fixedly connected with the screw rod nut (18), the detecting head (5) is fixedly connected with the second sliding block (19), and the second sliding block (19) can be driven by rotating the adjusting screw rod (17) through the screw rod nut (18) to synchronously drive the detecting head (5) to move in the vertical direction;
the second sliding block (19) is provided with a second locking mechanism, the second locking mechanism comprises a handle screw (21), and the handle screw (21) is arranged on the second sliding block (19) in a threaded manner and one end of the handle screw is abutted against the guide rod (20).
2. The high-precision flatness detection apparatus of claim 1, wherein: the workbench (1) is provided with a gantry bracket (13) in a sliding manner, a connecting plate (14) is arranged between the bottoms of the two ends of the gantry bracket (13), the connecting plate (14) is fixedly connected with a Y-axis moving platform (401) of the second linear module (4), and the detection table top (101) is covered above the second linear module (4) and the connecting plate (14).
3. The high-precision flatness detection apparatus according to claim 2, characterized in that: the workbench (1) is located on two sides of the detection table top (101) and is provided with a slideway for the gantry bracket (13) to move, the slideway is covered with a protective cover (15), and the protective cover (15) can move along with the gantry bracket (13) and deform elastically.
4. The high-precision flatness detection apparatus of claim 1, wherein: the first linear module (3) and the second linear module (4) are magnetic suspension linear modules; the detection head (5) adopts a laser displacement sensor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020125.7A CN113884030B (en) | 2021-09-01 | 2021-09-01 | High-precision flatness detection equipment |
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|---|---|---|---|
| CN202111020125.7A CN113884030B (en) | 2021-09-01 | 2021-09-01 | High-precision flatness detection equipment |
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| CN113884030A CN113884030A (en) | 2022-01-04 |
| CN113884030B true CN113884030B (en) | 2024-03-15 |
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| CN213352251U (en) * | 2020-10-10 | 2021-06-04 | 伟时电子股份有限公司 | Backlight source assembling jig |
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2021
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| CN213352251U (en) * | 2020-10-10 | 2021-06-04 | 伟时电子股份有限公司 | Backlight source assembling jig |
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| CN113884030A (en) | 2022-01-04 |
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