CN119268529A - A device for detecting the flatness of plates with high precision - Google Patents
A device for detecting the flatness of plates with high precision Download PDFInfo
- Publication number
- CN119268529A CN119268529A CN202411472087.2A CN202411472087A CN119268529A CN 119268529 A CN119268529 A CN 119268529A CN 202411472087 A CN202411472087 A CN 202411472087A CN 119268529 A CN119268529 A CN 119268529A
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- plate
- tested
- vertical frame
- flatness
- cross bar
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a device for detecting flatness of a plate with high precision, which belongs to the technical field of sheet detection and comprises a vertical frame, wherein a clamping piece for clamping the upper edge of the plate to be detected is arranged at the top of the vertical frame, a detection assembly is further arranged on the vertical frame, the detection assembly comprises a front cross rod arranged in front of the plate to be detected and a rear cross rod arranged behind the plate to be detected, a plurality of sliding rods which can vertically abut against the plate surface of the plate to be detected are uniformly arranged at intervals along the length direction of the cross rod, and the sliding rods slide through the cross rod.
Description
Technical Field
The invention relates to the technical field of sheet detection, in particular to a device for detecting the flatness of a sheet material with high precision.
Background
At present, the existing aluminum alloy plate flatness detection mode is mostly carried out according to the detection requirement of the GB/T3880 standard, specifically, the plate is freely placed on a platform, and when the balance of the plate is stable, the maximum gap between the plate and the platform is measured by using a feeler gauge to obtain the flatness or the unevenness value of the plate.
However, after the qualified product is cut or sliced into small plates, the situation that partial cut strips and small plates are distorted sometimes occurs, which affects the subsequent use.
According to analysis, when the flatness of the plate is detected, the plate is freely placed on the platform, and the gravity of the plate and the supporting force of the platform are matched with each other to influence uneven residual stress, so that the uneven value in the state is reduced, namely the flatness of the plate is temporarily reduced, and the residual stress is released after the plate is cut or cut into small plates, so that the situation that partial cut strips and small plates are distorted is caused.
For this reason, we propose a device for detecting the flatness of a plate with high accuracy for detecting the flatness of a plate in a vertically suspended state.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a device for detecting the flatness of a plate with high precision.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
The device for detecting the flatness of the plate with high precision comprises a vertical frame, wherein a clamping piece for clamping the upper edge of the plate to be detected is arranged at the top of the vertical frame;
The detection assembly comprises a front cross rod arranged in front of a plate to be detected and a rear cross rod arranged behind the plate to be detected, wherein a plurality of sliding rods which can vertically abut against the plate surface of the plate to be detected are uniformly arranged at intervals along the length direction of the cross rod, the sliding rods penetrate through the cross rod in a sliding manner, one end of each sliding rod, which is far away from the plate to be detected, is provided with an end plate, a limit ring is arranged at the position, which is positioned between the corresponding cross rod and the plate to be detected, of each sliding rod body, and small elastic springs are sleeved at the position, which is positioned between the corresponding cross rod and the limit ring, of each sliding rod body;
the detection assembly further comprises a driving device for driving the front cross rod and the rear cross rod to lift.
Preferably, the sliding rods on the front cross rod are arranged in one-to-one correspondence with the sliding rods on the rear cross rod.
Preferably, one end of the sliding rod corresponding to the plate to be tested is inlaid with a ball.
Preferably, a pulling piece is arranged on one side of the cross rod, which is away from the plate to be tested, and the sliding rods in the same direction penetrate through the pulling piece in a sliding mode.
Preferably, the driving device comprises a screw rod sliding rail pair vertically arranged at the side part of the vertical frame, and the moving part of the screw rod sliding rail pair is connected with the end part of the corresponding cross rod;
The driving device further comprises a driving motor for driving the screw rod of the screw rod sliding rail pair to rotate.
Preferably, screw rod sliding rail pairs are arranged at the front and rear sides of the two side parts of the vertical frame, and the screw rod sliding rail pair moving parts on the same side are correspondingly and fixedly connected.
Preferably, the clamping piece comprises a transverse locating plate arranged on the inner top wall of the vertical frame and a transverse sliding rail arranged on the front side surface of the top of the vertical frame, wherein at least two sliding blocks are arranged on the transverse sliding rail along the length direction of the transverse sliding rail, and a push rod capable of vertically extruding the front plate surface of the plate to be detected is arranged on the sliding blocks so as to be matched with the transverse locating plate to clamp the upper edge of the plate to be detected.
Preferably, the sliding blocks are at least three, and one sliding block at the outermost side is provided with a hundred/dial indicator of which the measuring end can be abutted against the front plate surface of the plate to be measured.
Preferably, the device also comprises a U-shaped bracket, wherein two sides of the vertical frame are correspondingly and rotatably connected with two ends of the opening end of the U-shaped bracket;
The U-shaped support open end is also provided with driving equipment for driving the vertical frame to rotate, so that the vertical frame is in a vertical, inclined or horizontal state.
Preferably, the two inner side walls of the vertical frame are provided with vertical sliding grooves at positions corresponding to the rear parts of the plates to be detected, and a plurality of transverse supporting rods are connected between the two vertical sliding grooves in a sliding manner so as to support the plates to be detected in a horizontal or inclined state.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. In the process of detecting the flatness of the plate, the plate is in a vertical suspension state, so that the condition that uneven residual stress of the plate is reduced due to the influence of the mutual coordination of gravity and the supporting force of a platform in the prior art is avoided;
2. The clamping piece is arranged, the fitting condition of the upper edge of the plate to be detected and the transverse locating plate can be detected through the hundred/dial indicators before the plate to be detected is extruded through the ejector rod, specifically, when the hundred/dial indicators are transversely moved, the minimum value of the hundred/dial indicators appears at least two positions, the position where the minimum value of the hundred/dial indicators appears is indicated, the plate to be detected is fitted with the transverse locating plate, the ejector rod extrudes the plate to be detected at the position, the deformation condition of the plate to be detected is not caused, namely the temporary change of the flatness of the plate to be detected is not influenced, and the accuracy of the follow-up detection result is ensured;
3. The setting of U type support, actuating device and horizontal bracing piece can place the panel that awaits measuring under vertical frame is in the horizontality, and after the panel that awaits measuring is pressed from both sides tightly by the clamping piece, it detects to order about vertical frame to become the vertical state again, and the panel that awaits measuring of installation that like this can be convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of part I of FIG. 1;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view of part II of FIG. 4;
FIG. 6 is a schematic view of another construction of the present invention;
FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;
FIG. 8 is a schematic view of the structure of FIG. 6 before clamping a sheet to be tested;
fig. 9 is a schematic structural diagram of the sheet to be tested clamped in fig. 6.
The device comprises a vertical frame, a vertical chute, a clamping piece, a transverse positioning plate, a transverse sliding rail, a sliding block, a sliding rod, a push rod, a hundred/micrometer gauge, a detection assembly, a front transverse rod, a rear transverse rod, a sliding rod, a 331, an end plate, a 332, a ball, a 34, a limiting ring, a 35, a small elastic spring, a 36, a driving device, a 361, a screw sliding rail pair, a 362, a driving motor, a 37, a pulling sheet, a 38, a U-shaped block, a 39 positioning bolt, a 4, U-shaped bracket, a 5, driving equipment and a 6, transverse supporting rod.
Detailed Description
The present application will be explained in detail by the following examples, and the purpose of the present application is to protect all technical improvements within the scope of the present application, and in the description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. corresponding to the drawings of the present application, for convenience of description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "end", "side", "transverse", "longitudinal", etc. corresponding to the length and width of the corresponding component, that is, "end" indicates the head and tail region in the length direction of the corresponding component, and "side" indicates the head and tail region in the width direction of the corresponding component, for convenience of description of the present application, it should not be indicated or implied that the apparatus or element referred to must have a specific orientation.
The device for detecting the flatness of the plate with high precision comprises a vertical frame 1, wherein a clamping piece 2 for clamping the upper edge of the plate to be detected is arranged at the top of the vertical frame 1, and a detection component 3 is further arranged on the vertical frame 1;
Referring to fig. 2 and 5, the detecting assembly 3 includes a front cross bar 31 disposed in front of the board to be detected and a rear cross bar 32 disposed behind the board to be detected, wherein a plurality of sliding bars 33 capable of vertically abutting against the board surface of the board to be detected are uniformly spaced along the length direction of the cross bar, the sliding bars 33 slide through the cross bar, one end of the sliding bars 33, which is opposite to the board to be detected, is provided with an end plate 331, a position between the corresponding cross bar and the board to be detected, of the sliding bars 33 is provided with a limiting ring 34, and the limiting ring 34 may be a ring welded on the bar of the sliding bars 33, or may be a ring groove formed on the bar of the sliding bars 33, a clamp spring clamped in the ring groove, a screw screwed on the bar of the sliding bars 33, or other structures capable of being disposed on the bar of the sliding bars 33 and limiting the end positions of the small elastic springs 35, which are not specifically limited.
The sliding rod 33 is provided with a small elastic spring 35 at the position matching between the corresponding cross rod and the limiting ring 34. It should be noted that the smaller the elastic force provided by the small elastic spring 35, the better the effect is when the small elastic force is larger than the friction force between the sliding rod 33 and the corresponding cross rod 31, and the cross rod is further provided with a plurality of displacement sensors (not shown in the figure) which are connected with the sliding rods 33 in the same direction in a one-to-one correspondence manner, namely, the real-time displacement condition of the corresponding sliding rod 33 can be detected through the displacement sensors, the front-to-back size of the corresponding board surface to be detected can be judged according to the displacement of the sliding rod 33, and the flatness of the board to be detected can be further seen.
It should be noted that a displacement sensor may be disposed on one of the cross bars, or both of the cross bars may be disposed with a displacement sensor.
The detection assembly 3 further comprises a driving device 36 for driving the front rail 31 and the rear rail 32 to rise and fall.
In the process of detecting the flatness of the plate, the plate is in a vertical hanging state, so that the condition that uneven residual stress of the plate is reduced due to the fact that the plate is influenced by the mutual cooperation of gravity and supporting force of a platform in the prior art is avoided, and the plate cannot deform under the pressing of the sliding rod 33 due to the fact that the sliding rod 33 is pressed against the front and the rear of the plate to be detected, and the accuracy of a detection result is guaranteed.
Further, the slide bars 33 on the front cross bar 31 are provided in one-to-one correspondence with the slide bars 33 on the rear cross bar 32. This can better cancel each other out by the action of the slide rod 33 located in the front-rear direction of the sheet to be measured.
Further, in order to prevent the sliding rod 33 from scratching the board to be tested during the lifting process, a ball 332 is embedded at one end of the sliding rod 33 corresponding to the board to be tested, that is, the sliding rod 33 can generate rolling friction with the board to be tested through the ball 332.
Further, in order to better move the sliding rod 33 to a position capable of abutting against the plate to be tested, a pulling piece 37 is arranged on one side of the cross rod, which is away from the plate to be tested, and the sliding rod 33 in the same direction slides to penetrate through the pulling piece 37, namely, the pulling piece 37 can be pulled, the pulling piece 37 acts on the end plate 331, so that the sliding rod 33 moves to a direction away from the plate to be tested, the corresponding small elastic spring 35 is compressed, after the sliding rod 33 moves to a position capable of abutting against the plate to be tested, the pulling piece 37 is slowly loosened, and the sliding rod 33 moves to a direction close to the plate to be tested under the action of the corresponding small elastic spring 35 and abuts against the plate surface of the plate to be tested.
In a possible embodiment, referring to fig. 1-5, the driving device 36 includes a screw slide rail pair 361 vertically installed at a side portion of the vertical frame 1, and a moving portion of the screw slide rail pair 361 is connected to an end portion of the corresponding cross bar;
The driving device 36 further comprises a driving motor 362 for driving the screw slide rail pair 361 to rotate.
It should be noted that the screw slide rail pair 361 may be understood as a combination of a slide rail, a slide block and a screw, where the slide rail is slidably connected with the slide block, the slide block is in transmission connection with the screw, and the screw is in rotational connection with the slide rail.
Further, screw slide rail pairs 361 are respectively arranged at the front and rear sides of the two sides of the vertical frame 1, and the moving parts of the screw slide rail pairs 361 at the same side are correspondingly and fixedly connected, namely, four screw slide rail pairs 361 are respectively and fixedly connected with the moving parts of the two screw slide rail pairs 361 positioned at the left side of the vertical frame 1, and the moving parts of the two screw slide rail pairs 361 positioned at the right side of the vertical frame 1 are correspondingly and fixedly connected, so that the moving parts of the four screw slide rail pairs 361 are at the same height, the front cross rod 31 and the rear cross rod 32 are at the same height, and the front sliding rods 33 and the rear sliding rods 33 are respectively and coaxially arranged.
The driving motor 362 is a speed reducing motor according to the requirement, preferably, the driving motor 362 is provided with a speed reducer with two output shafts, and the two output shafts of the speed reducer are correspondingly connected with the two lead screw sliding rail pairs 361 lead screws on the same side respectively.
In a possible embodiment, referring to fig. 5, the clamping member 2 includes a transverse positioning plate 21 disposed on an inner top wall of the vertical frame 1 and a transverse sliding rail 22 disposed on a front side surface of a top of the vertical frame 1, where the transverse sliding rail 22 is provided with at least two sliding blocks 23 along a length direction thereof, and the sliding blocks 23 are provided with a push rod 24 capable of vertically extruding a front plate surface of the plate to be tested so as to cooperate with the transverse positioning plate 21 to clamp an upper edge portion of the plate to be tested.
The ejector rod 24 may be a compression bolt screwed to the slider 23, or may be a cylinder or an electric telescopic rod, as needed, and the structure of the ejector rod 24 is not particularly limited here.
Since the lateral positioning plate 21 is a reference plate for positioning the upper edge of the substrate to be tested in the front-rear direction. Preferably, in this embodiment, the rear rail 32 is provided with a displacement sensor.
In this embodiment, two ends of the front cross bar 31 are provided with U-shaped blocks 38 in sliding fit with the front cross bar 31, the ends of the front cross bar 31 are connected with the driving part of the driving device 36 through the U-shaped blocks 38, the U-shaped blocks 38 are rotatably connected with positioning bolts 39, the positioning bolts 39 are in threaded fit with the corresponding ends of the front cross bar 31, that is, the positioning bolts 39 can be rotated to drive the front cross bar 31 to move forward so as to compensate the size occupied by the thickness of the plate to be tested, so that the distance between the front cross bar 31 and the plate to be tested is consistent with the distance between the rear cross bar 32 and the plate to be tested, that is, the extrusion force of the front sliding bar 33 on the plate to be tested is consistent with the extrusion force of the rear sliding bar 33 on the plate to be tested, and the directions are opposite.
In the second embodiment, referring to fig. 2-5, a device for detecting flatness of a board with high precision is provided, on the basis of the first embodiment, at least three sliding blocks 23 are provided, and one sliding block 23 at the outermost side is provided with a hundred/dial indicator 25 whose measuring end can abut against the front board surface of the board to be detected.
The setting can detect the laminating condition of board upper edge and horizontal locating plate 21 that awaits measuring through hundred/amesdial 25 before the board that awaits measuring through ejector pin 24 like this, specifically, when transversely moving hundred/amesdial 25, the minimum of hundred/amesdial 25 appears in two at least places, the place instruction of the minimum of hundred/amesdial 25 appears, this department of board that awaits measuring is laminated with horizontal locating plate 21, ejector pin 24 extrudees the board that awaits measuring at this place, can not cause the board that awaits measuring to take place the condition of deformation, can not influence the temporary change of board roughness that awaits measuring promptly, guaranteed the accuracy of follow-up testing result.
In the third embodiment, referring to fig. 6-9, a device for detecting flatness of a plate with high precision is provided, which further comprises a U-shaped bracket 4 on the basis of the first or second embodiment, wherein two sides of a vertical frame 1 are correspondingly and rotatably connected to two ends of an opening end of the U-shaped bracket 4;
The open end of the U-shaped bracket 4 is further provided with a driving device 5 for driving the vertical frame 1 to rotate so that the vertical frame 1 is in a vertical, inclined or horizontal state.
The driving device 5 can be a rotary positioner according to the requirement, namely, the fixing part of the driving device 5 is connected with the U-shaped bracket 4, and the rotating part of the driving device 5 is connected with the vertical frame 1.
Further, vertical sliding grooves 11 are formed in positions, located behind the plates to be detected, of the two inner side walls of the vertical frame 1, and a plurality of transverse supporting rods 6 are connected between the two vertical sliding grooves 11 in a sliding mode so as to support the plates to be detected in a horizontal or inclined state.
The setting can place the panel that awaits measuring under vertical frame 1 is in the horizontality like this, and after the panel that awaits measuring is pressed from both sides tightly by clamping piece 2, it detects to drive vertical frame 1 to become the vertical state again, the panel that awaits measuring of installation that like this can be convenient.
It should be noted that after the vertical frame 1 is changed into a vertical state, the transverse supporting rod 6 moves to the bottom in the vertical frame 1 under the action of gravity, so that the transverse supporting rod does not contact with the plate to be detected, and does not influence the detection of the plate to be detected.
The invention has not been described in detail in the prior art, it is obvious to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and therefore, the embodiments are to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411472087.2A CN119268529A (en) | 2024-10-22 | 2024-10-22 | A device for detecting the flatness of plates with high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411472087.2A CN119268529A (en) | 2024-10-22 | 2024-10-22 | A device for detecting the flatness of plates with high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119268529A true CN119268529A (en) | 2025-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411472087.2A Pending CN119268529A (en) | 2024-10-22 | 2024-10-22 | A device for detecting the flatness of plates with high precision |
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| CN (1) | CN119268529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119747833A (en) * | 2025-03-06 | 2025-04-04 | 深圳垒石热管理技术股份有限公司 | A heat plate welding device |
-
2024
- 2024-10-22 CN CN202411472087.2A patent/CN119268529A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119747833A (en) * | 2025-03-06 | 2025-04-04 | 深圳垒石热管理技术股份有限公司 | A heat plate welding device |
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