CN217483475U

CN217483475U - Online straightness detector

Info

Publication number: CN217483475U
Application number: CN202221579607.6U
Authority: CN
Inventors: 刘自云; 鲍佳斌
Original assignee: Jiangsu Zhiwei Heavy Industry Technology Co ltd
Current assignee: Jiangsu Zhiwei Heavy Industry Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-23
Anticipated expiration: 2032-06-22

Abstract

The utility model relates to an online straightness detector, which comprises a base, wherein a swing arm is arranged on the upper part of the base, and a detection platform is arranged on the swing arm; the structure of the detection platform is as follows: the device comprises a platform body which is horizontally arranged, wherein a detector is arranged on the upper surface of the middle part of the platform body, positioning clamps are arranged on the upper surfaces of two ends of the platform body, the detector and the positioning clamps are respectively matched with a workpiece to be detected, an anti-floating pressure holder is arranged on the platform body between the detector and the positioning clamps, and a pressure holding end head at the lower part of the anti-floating pressure holder is matched with the upper surface of the workpiece; the upper surface of one end of the swing arm in the horizontal direction is hinged to the detection platform, the lower surface of the other end of the swing arm in the horizontal direction is hinged to the upper surface of the base, and the length direction of the platform body is consistent with the length direction of the workpiece, so that the straightness error can be timely found by detecting the straightness of the workpiece on line, and meanwhile, the cost is low, and the detection is stable and reliable.

Description

Online straightness detector

Technical Field

The utility model belongs to the technical field of detection device technique and specifically relates to an online straightness accuracy detector.

Background

For workpieces with relatively large length-width ratios, such as plates, pipes or other profiles, when the straightness requirement is relatively high, straightness measurement needs to be performed in production, so that the production quality is monitored in real time.

Such as an elongated plate-shaped pultruded panel, which is mainly used in the manufacture of blade girders for wind turbine generators. The wind power blade girder is formed by bonding a plurality of layers of pultrusion plates with the length of dozens of meters, if the straightness of the pultrusion plates is poor, the bonding surface between the pultrusion plate layers is reduced, the strength of the blade girder is poor, and the quality of the wind power blade is reduced. Therefore, the straightness of the pultruded panel is a very important quality indicator in the production of pultruded panels. However, the straightness of the pultruded panel is affected by fiber distribution, resin quality, temperature, humidity, internal stress changes, production equipment structure changes and the like during production, and the straightness of the pultruded panel is also changed.

In order to find out the change of the straightness of the workpiece with a relatively large length-width ratio such as a pultrusion plate in time, at present, the straightness is detected on a detection tool by adopting a cutting sampling section, the plate needs to be cut into sections for detection, so that the waste of materials is caused, the loss is large, the problem cannot be found in time for adjusting the straightness, and the straightness can be detected on line by adopting visual shooting sampling.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects in the prior art and provides an online straightness detector, so that the straightness of a workpiece can be detected online, the straightness error can be found timely, and meanwhile, the online straightness detector is low in cost and stable and reliable in detection.

The utility model discloses the technical scheme who adopts as follows:

an online straightness detector comprises a base, wherein a swing arm is mounted on the upper portion of the base, and a detection platform is mounted on the swing arm;

the structure of the detection platform is as follows: the device comprises a platform body which is horizontally arranged, wherein a detector is arranged on the upper surface of the middle part of the platform body, positioning clamps are arranged on the upper surfaces of two ends of the platform body, the detector and the positioning clamps are respectively matched with a workpiece to be detected, an anti-floating pressure clamp is arranged on the platform body between the detector and the positioning clamps, and a pressure clamping end head at the lower part of the anti-floating pressure clamp is matched with the upper surface of the workpiece;

the upper surface of one end of the swing arm in the horizontal direction is hinged to the detection platform, the lower surface of the other end of the swing arm in the horizontal direction is hinged to the upper surface of the base, and the length direction of the platform body is consistent with the length direction of the workpiece.

As a further improvement of the technical scheme:

the structure of the detector is as follows: including installing side by side in the detection guide rail and the grating chi of platform body upper surface, detect the guide rail with the length direction of platform body is perpendicular, sliding connection has the detection slider on the detection guide rail, the detection slider is connected with the read head of grating chi, be provided with on the detection slider and lean on the gyro wheel, lean on the vertical setting of axis of gyro wheel, the outer peripheral face that leans on the gyro wheel and the side cooperation of work piece still includes first spring, the one end and the detection slider of first spring are connected, the other end and the detection guide rail of first spring are connected, the axis direction of first spring is parallel with the detection guide rail.

The first spring is connected with the detection guide rail through a zero point adjusting block;

the structure of the zero point adjusting block is as follows: include with detection guide rail sliding fit's regulating block body, the side-mounting of regulating block body has first locking bolt, the end of first locking bolt passes the regulating block body and detects the guide rail cooperation, and first spring is connected with the another side of regulating block body, and first spring is located and detects between slider and the regulating block body.

The structure of the positioning clamp holder is as follows: the positioning guide rail is arranged on the upper surface of a platform body and is vertical to the length direction of the platform body;

a second spring is arranged at the upper part of one end of the positioning guide rail, the axis direction of the second spring is parallel to that of the positioning guide rail, one end of the second spring is connected with the end part of the positioning guide rail, the other end of the second spring is connected with a clamping slide block, the clamping slide block is slidably mounted on the positioning guide rail, a clamping idler wheel is mounted on the upper surface of the clamping slide block, the axis of the clamping idler wheel is vertically arranged, and the peripheral surface of the clamping idler wheel is matched with the side edge of a workpiece;

and a fixed idler wheel is mounted at the upper part of the other end of the positioning guide rail, the axis of the fixed idler wheel is vertically arranged, and the peripheral surface of the fixed idler wheel is matched with the side edge of the workpiece.

The second spring is connected with the positioning guide rail through a first plate width adjusting block;

the first plate width adjusting block is structurally characterized in that: include with location guide rail sliding fit's regulating block structure, the side-mounting of regulating block structure has second locking bolt, the end of second locking bolt passes regulating block structure and location guide rail cooperation, and the second spring is connected with the another side of regulating block structure, and the second spring is located between centre gripping slider and the regulating block structure.

The fixed idler wheel is connected with the positioning guide rail through a second plate width fixed block;

the second plate width fixing block and the first plate width adjusting block are identical in structure, and the fixed idler wheel is mounted on the upper surface of the adjusting block structure.

The structure of the anti-floating pressing holder is as follows: the device comprises a door-shaped support arranged on a platform body, wherein a compressing cylinder is arranged below the middle part of the door-shaped support, the output end of the compressing cylinder is provided with a pressing end, and the pressing end is in sliding fit with the upper surface of a workpiece.

And a fluent strip is arranged on the upper surface of the platform body between the detector and the positioning clamp holder, and the upper surface of the fluent strip slidably supports the lower surface of the workpiece.

The structure of the fluency strip is as follows: the rolling platform comprises a mounting groove, a plurality of rolling wheels are mounted in the mounting groove along the length direction of a pulling platform body, and the surfaces of the rolling wheels are matched with the lower surface of a workpiece.

The utility model has the advantages as follows:

the utility model has the advantages of compact and reasonable structure, convenient operation through swing arm swing joint in the location holder direction clamping workpiece at platform body both ends, prevents that the end is held to the pressure of floating pressure holder and guarantees that the state when the work piece detects is stable, and the straightness accuracy of the detector real-time detection work piece between the location holder realizes that the line detects the work piece straightness accuracy and in time discovers the straightness accuracy error, and detector simple structure is with low costs, detects reliable and stable simultaneously.

The utility model discloses still include following advantage:

(1) the two ends of the swing arm are hinged with the platform body and the base respectively, when the straightness of the workpiece changes, the position of the platform body in the horizontal direction can be changed in real time, and equipment damage caused by large rigid contact force generated between deformation of the workpiece and the detector is avoided.

(2) The first spring is connected with the detection guide rail through the zero point adjusting block, and the initial position of the pressing roller is changed by adjusting the position of the adjusting block body on the detection guide rail, so that the detection device is suitable for workpieces with different widths, and the detection device is convenient to debug.

(3) The second spring is connected with the positioning guide rail through the first plate width adjusting block, the fixed idler wheel is connected with the positioning guide rail through the second plate width fixing block, the initial position of the fixed idler wheel is changed by adjusting the position of the adjusting block structure on the positioning guide rail, and meanwhile, the position between the fixed idler wheel and the clamping idler wheel can be adjusted to adapt to workpieces with different widths, so that the debugging of the detector is facilitated.

(4) The rolling wheel surface on the fluent strip slidably supports the lower surface of the workpiece, so that the workpiece is better conveyed in the detector.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is an exploded view (another perspective) of the present invention.

Fig. 5 is a schematic structural view of the swing arm of the present invention.

Fig. 6 is a schematic structural diagram of the detector of the present invention.

Fig. 7 is a schematic structural diagram (another view angle) of the detector of the present invention.

Fig. 8 is a schematic structural view of the swing arm of the present invention.

Fig. 9 is a schematic structural view (another view) of the swing arm of the present invention.

Fig. 10 is a schematic structural view of the anti-floating pressure holder of the present invention.

Fig. 11 is a schematic structural view of the fluency strip of the present invention.

Fig. 12 is a schematic view of the swing arm of the present invention.

Fig. 13 is the schematic diagram of the present invention for determining the zero point position of the reading head of the detector.

Fig. 14 is a schematic diagram illustrating the principle of measuring straightness according to the present invention.

Wherein: 10. a base; 20. a swing arm; 30. detecting a platform; 40. a workpiece; 50. a straightedge;

11. a lower bearing seat;

21. an upper rotating shaft; 22. a lower rotating shaft;

31. a platform body; 32. positioning a clamp holder; 33. a detector; 34. fluency strips; 35. an anti-floating pressure holder;

3101. an upper bearing seat; 3102. an installation part;

3201. positioning the guide rail; 3202. clamping the sliding block; 3203. clamping the idler wheel; 3204. a second spring; 3205. fixing the idler wheel; 3206. a first plate width adjusting block; 3207. a second board width fixing block;

32061. the adjusting block structure; 32062. a second locking bolt;

3301. a grating scale; 3302. detecting a guide rail; 3303. detecting a slide block; 3304. pressing the roller; 3305. a read head; 3306. a first spring; 3307. a zero point adjusting block;

33071. a regulating block body; 33072. a first locking bolt;

3401. mounting grooves; 3402. a rolling wheel;

3501. pressing and holding the end head; 3502. a gantry support; 3503. and a pressing cylinder.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-4, 5 and 12, the online straightness detector of the present embodiment includes a base 10, a swing arm 20 mounted on the base 10, and a detection platform 30 mounted on the swing arm 20;

the structure of the detection platform 30 is: the device comprises a platform body 31 which is horizontally arranged, wherein a detector 33 is arranged on the upper surface of the middle part of the platform body 31, positioning clamps 32 are arranged on the upper surfaces of two ends of the platform body 31, the detector 33 and the positioning clamps 32 are respectively matched with a workpiece 40 to be detected, an anti-floating pressure holder 35 is arranged on the platform body 31 between the detector 33 and the positioning clamps 32, and a pressure holding end 3501 at the lower part of the anti-floating pressure holder 35 is matched with the upper surface of the workpiece 40;

the upper surface of one horizontal end of the swing arm 20 is hinged to the detection platform 30, the lower surface of the other horizontal end of the swing arm 20 is hinged to the upper surface of the base 10, and the length direction of the platform body 31 is consistent with the length direction of the workpiece 40.

The structure of the swing arm 20 includes a block-shaped body, an upper surface of one end of the block-shaped body in the horizontal direction is provided with an upper rotating shaft 21 with an axis in the vertical direction, a lower surface of the other end of the block-shaped body in the horizontal direction is provided with a lower rotating shaft 22 with an axis in the vertical direction, the upper rotating shaft 21 is rotatably connected with an upper bearing seat 3101 installed below the middle part of the platform body 31, and the lower rotating shaft 22 is rotatably connected with a lower bearing seat 11 installed on the upper surface of the base 10.

The workpiece 40 to be detected is a product with a large length-width ratio, and can also be a product produced on line, for example, a raw material for a wind turbine blade girder is a pultrusion plate with a length of tens of meters.

The platform body 31 is provided with a plurality of installation parts 3102, the upper surface of the installation parts 3102 is used for installing the detector 33, the positioning clamper 32, the anti-floating pressing clamper 35 and the like, the installation parts 3102 can be fixed on the platform body 31 and can also be detachably connected with the platform body 31, and the relative distance between the installation detector 33, the positioning clamper 32 and the anti-floating pressing clamper 35 can be conveniently adjusted.

The positioning clampers 32 at the two ends of the platform body 31 are used for guiding and clamping the workpiece 40, and when the workpiece 40 is fed along the length direction, the detector 33 between the positioning clampers 32 detects the straightness of the workpiece 40 in real time; because the workpiece 40 is longer in the length direction, the anti-floating pressure holder 35 is arranged, and the pressure holding end 3501 is matched with the upper surface of the workpiece 40, the upper surface of the workpiece 40 can be prevented from arching when in detection, the stable state of the workpiece 40 when in detection is ensured, and the detection precision is improved; through the fact that the two ends of the swing arm 20 are hinged to the platform body 31 and the base 10 respectively, when the straightness of the workpiece 40 changes, the position of the platform body 31 in the horizontal direction can be changed in real time, and damage to equipment due to large rigid contact force generated between deformation of the workpiece 40 and the detector is avoided.

As shown in fig. 1 to 7, the detector 33 has a structure of: including installing side by side in the detection guide rail 3302 and the grating chi 3301 of platform body 31 upper surface, it is perpendicular with the length direction of platform body 31 to detect guide rail 3302, sliding connection has detection slider 3303 on detecting guide rail 3302, it is connected with grating chi 3301's reading head 3305 to detect slider 3303, it leans on gyro wheel 3304 to be provided with on the detection slider 3303, lean on the vertical setting of axis of gyro wheel 3304, lean on gyro wheel 3304's outer peripheral face and workpiece 40's side cooperation, still include first spring 3306, first spring 3306's one end is connected with detection slider 3303, first spring 3306's the other end is connected with detection guide rail 3302, first spring 3306's axis direction is parallel with detection guide rail 3302.

The first spring 3306 is connected with the detection guide rail 3302 through a zero point adjusting block 3307;

the structure of zero point adjusting block 3307 is: the adjusting block comprises an adjusting block body 33071 in sliding fit with a detection guide rail 3302, a first locking bolt 33072 is mounted on the side surface of the adjusting block body 33071, the end head of the first locking bolt 33072 penetrates through the adjusting block body 33071 to be matched with the detection guide rail 3302, a first spring 3306 is connected with the other side surface of the adjusting block body 33071, and the first spring 3306 is located between a detection sliding block 3303 and the adjusting block body 33071.

The first spring 3306 is in a compressed state, so that the pressing roller 3304 is constantly attached to one side of the workpiece 40, the detection slider 3303 is driven to slide on the detection guide rail 3302 along with the change of the straightness of the workpiece 40, the reading head 3305 of the grating ruler 3301 is driven to move, and the grating ruler 3301 transmits a displacement signal to the microprocessor. In order to facilitate debugging of the detector, the first spring 3306 is connected with the detection guide rail 3302 through the zero point adjusting block 3307, and the initial position of the pressing roller 3304 is changed by adjusting the position of the adjusting block body 33071 on the detection guide rail 3302 so as to be suitable for workpieces 40 with different widths; the side of the workpiece 40 that is attached to the pressing roller 3304 is a detection side, and the other side of the workpiece 40 is a non-detection side.

As shown in fig. 8 to 9, the positioning holder 32 has a structure of: the positioning device comprises a positioning guide rail 3201 arranged on the upper surface of a platform body 31, wherein the positioning guide rail 3201 is vertical to the length direction of the platform body 31;

a second spring 3204 is arranged at the upper part of one end of the positioning guide track 3201, the axial direction of the second spring 3204 is parallel to the positioning guide track 3201, one end of the second spring 3204 is connected with the end part of the positioning guide track 3201, the other end of the second spring 3204 is connected with a clamping slider 3202, the clamping slider 3202 is slidably mounted on the positioning guide track 3201, a clamping idler 3203 is mounted on the upper surface of the clamping slider 3202, the axial line of the clamping idler 3203 is vertically arranged, and the outer peripheral surface of the clamping idler 3203 is matched with the side edge of the workpiece 40;

the fixed idler 3205 is mounted on the upper portion of the other end of the positioning guide track 3201, the axis of the fixed idler 3205 is vertically arranged, and the outer peripheral surface of the fixed idler 3205 is matched with the side edge of the workpiece 40.

The second spring 3204 is connected with the positioning guide track 3201 through a first plate width adjusting block 3206;

the first plate width adjusting block 3206 has a structure of: including with location guide rail 3201 sliding fit's regulation block structure 32061, second locking bolt 32062 is installed to the side of regulation block structure 32061, and the end of second locking bolt 32062 passes regulation block structure 32061 and cooperates with location guide rail 3201, and second spring 3204 is connected with the other side of regulation block structure 32061, and second spring 3204 is located between clamping slider 3202 and regulation block structure 32061.

The fixed idler 3205 is connected with the positioning guide rail 3201 through a second plate width fixed block 3207;

the second plate width fixing block 3207 has the same structure as the first plate width adjusting block 3206, and the fixed idler 3205 is arranged on the upper surface of the adjusting block structure 32061.

The second spring 3204 is kept in a compressed state so that the clamping abutment 3203 attached to the clamping block 3202 is constantly in contact with the non-detection side of the workpiece 40, and further, the detection side of the workpiece 40 is constantly in contact with the fixed abutment 3205. In order to facilitate debugging of the detector, the second spring 3204 is connected with the positioning guide rail 3201 through the first plate width adjusting block 3206, the fixed idler wheel 3205 is connected with the positioning guide rail 3201 through the second plate width fixing block 3207, the initial position of the fixed idler wheel 3205 is changed through the position of the adjusting block structure 32061 on the positioning guide rail 3201, and meanwhile, the position between the fixed idler wheel 3205 and the clamping idler wheel 3203 can be adjusted to adapt to workpieces 40 with different widths.

As shown in fig. 10, the anti-floating retainer 35 has the following structure: including installing in the door type support 3502 of platform body 31, door type support 3502 middle part below is installed and is pressed cylinder 3503, presses cylinder 3503 output and sets up and presses and hold end 3501, presses and holds end 3501 and work piece 40 upper surface sliding fit.

Because the length direction of the workpiece 40 is long, in order to prevent the upper surface of the workpiece 40 from arching during detection, the anti-floating pressure holder 35 is arranged, after the workpiece 40 is loaded, the pressure holding end 3501 is pressed down to be matched with the upper surface of the workpiece 40 under the driving of the pressure cylinder 3503, the state of the workpiece 40 during detection is ensured to be stable, the detection precision is improved, and the friction force on the surface of the workpiece 40 during conveying can be reduced by the sliding fit of the pressure holding end 3501 and the upper surface of the workpiece 40.

As shown in fig. 11, a fluency strip 34 is provided on the upper surface of the table body 31 between the detector 33 and the positioning holder 32, and the upper surface of the fluency strip 34 slidably supports the lower surface of the workpiece 40.

The structure of the fluency strip 34 is: the flat plate type workpiece pulling platform comprises a mounting groove 3401, wherein a plurality of rolling wheels 3402 are mounted in the mounting groove 3401 along the length direction of a platform body 31, and the surfaces of the rolling wheels 3402 are matched with the lower surface of a workpiece 40.

The rolling wheels 3402 on the fluency strip 34 slidingly support the lower surface of the workpiece 40 to allow for better transport of the workpiece 40 within the inspection apparatus.

When the online straightness detector of this embodiment is used:

(1) determination of the zero position of the detector reading head 3305:

as shown in fig. 13, the straight edge 50 with the same width as the workpiece 40 is selected for calibration, the positions of two fixed idler wheels 3205 are adjusted by adjusting the relative positions of a second plate-width fixing block 3207 and a positioning guide track 3201, the positions of the two fixed idler wheels 3205 are made to correspond to each other, the straight edge 50 is placed between the fixed idler wheels 3205 and the clamping idler wheels 3203, the side edges of the clamping idler wheels 3203 and the straight edge 50 are attached by adjusting the relative positions of a first plate-width fixing block 3206 and the positioning guide track 3201, and the second spring 3204 is in a proper compression state, so that the straight edge 50 is guided and clamped between the clamping idler wheels 3203 and the fixed idler wheels 3205;

in the above, namely, a standard straight line is determined by fixing the idler 3205 through the two sliding fulcrums, the position of the positioning clamper 32 on the platform body 31 can be adjusted according to actual conditions, and the length of the standard straight line is further changed;

by adjusting the position of the zero point adjusting block 3307 relative to the detection guide rail 3302, the pressing roller 3304 is attached to the side edge of the straight scale 50 on one side of the fixed pressing roller 3205, the first spring 3306 is adjusted to be in a suitable compression state, and the position of the reading head 3305 is the zero point position.

(2) Measurement of straightness of the workpiece 40:

as shown in fig. 14, a workpiece 40 of a corresponding specification is continuously conveyed into the measuring apparatus, such that one side (i.e., a detection side) of the workpiece 40 is simultaneously attached to the fixed idler 3205 and the pressing roller 3304, and the other side (i.e., a non-detection side) of the workpiece 40 is guided and clamped between the clamping idler 3203 and the fixed idler 3205 under the elastic action of the second spring 3204 and the workpiece 40, while the bottom of the workpiece 40 slides on the top of the flow strip 34;

after the end of the workpiece 40 passes through the two positioning clampers 32, the pressing end 3501 of the anti-floating pressing clamper 35 is pressed downwards to be matched with the upper surface of the workpiece 40 under the driving of the pressing cylinder 3503;

along with the continuous feeding of the workpiece 40, when the detection edge has concave-convex change, the detection slide block 3303 is driven by the pressure roller 3304 to change the position on the detection guide rail 3302 under the action of the elastic force of the first spring 3306, and then the reading head 3305 of the grating scale 3301 is driven to move;

the grating ruler 3301 transmits the displacement signal to the microprocessor and then converts the displacement signal into straightness data, and then the straightness data is fed back to the straightness control mechanism for timely correction, so that defective products are avoided.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. An online straightness detector which is characterized in that: the device comprises a base (10), wherein a swing arm (20) is arranged on the upper part of the base (10), and a detection platform (30) is arranged on the swing arm (20);

the structure of the detection platform (30) is as follows: the detection device comprises a platform body (31) which is horizontally arranged, wherein a detector (33) is arranged on the upper surface of the middle part of the platform body (31), positioning clamps (32) are arranged on the upper surfaces of two ends of the platform body (31), the detector (33) and the positioning clamps (32) are respectively matched with a workpiece (40) to be detected, an anti-floating pressure holder (35) is arranged on the platform body (31) between the detector (33) and the positioning clamps (32), and a pressing end head (3501) at the lower part of the anti-floating pressure holder (35) is matched with the upper surface of the workpiece (40);

the upper surface of one end of the horizontal direction of the swing arm (20) is hinged to the detection platform (30), the lower surface of the other end of the horizontal direction of the swing arm (20) is hinged to the upper surface of the base (10), and the length direction of the platform body (31) is consistent with the length direction of the workpiece (40).

2. The on-line straightness detector of claim 1, wherein: the detector (33) has a structure in which: including installing in detection guide rail (3302) and grating chi (3301) of platform body (31) upper surface side by side, detect guide rail (3302) with the length direction of platform body (31) is perpendicular, sliding connection has detection slider (3303) on detecting guide rail (3302), it is connected with reading head (3305) of grating chi (3301) to detect slider (3303), it leans on pressure gyro wheel (3304) to be provided with on detecting slider (3303), lean on the vertical setting of axis of pressure gyro wheel (3304), lean on the outer peripheral face of pressure gyro wheel (3304) and the side cooperation of work piece (40), still include first spring (3306), the one end of first spring (3306) is connected with detection slider (3303), the other end and the detection guide rail (3302) of first spring (3306) are connected, the axis direction of first spring (3306) is parallel with detection guide rail (3302).

3. The on-line straightness detector of claim 2, wherein: the first spring (3306) is connected with the detection guide rail (3302) through a zero point adjusting block (3307);

the structure of the zero point adjusting block (3307) is as follows: including with detecting guide rail (3302) sliding fit's regulating block body (33071), the side-mounting of regulating block body (33071) has first locking bolt (33072), the end of first locking bolt (33072) passes regulating block body (33071) and detects guide rail (3302) cooperation, and first spring (3306) are connected with the another side of regulating block body (33071), and first spring (3306) are located and detect between slider (3303) and the regulating block body (33071).

4. The on-line straightness detector of claim 1, wherein: the positioning clamper (32) is structured as follows: the platform comprises a positioning guide rail (3201) arranged on the upper surface of a platform body (31), wherein the positioning guide rail (3201) is vertical to the length direction of the platform body (31);

a second spring (3204) is arranged on the upper portion of one end of the positioning guide rail (3201), the axial direction of the second spring (3204) is parallel to the positioning guide rail (3201), one end of the second spring (3204) is connected with the end portion of the positioning guide rail (3201), the other end of the second spring (3204) is connected with a clamping sliding block (3202), the clamping sliding block (3202) is slidably mounted on the positioning guide rail (3201), a clamping idler wheel (3203) is mounted on the upper surface of the clamping sliding block (3202), the axial line of the clamping idler wheel (3203) is vertically arranged, and the outer peripheral surface of the clamping idler wheel (3203) is matched with the side edge of a workpiece (40);

fixed idler wheel (3205) are installed on the upper portion of the other end of the positioning guide rail (3201), the axis of the fixed idler wheel (3205) is vertically arranged, and the outer peripheral surface of the fixed idler wheel (3205) is matched with the side edge of the workpiece (40).

5. The online linearity detector of claim 4, characterized in that: the second spring (3204) is connected with the positioning guide rail (3201) through a first plate width adjusting block (3206);

the first plate width adjusting block (3206) has the structure that: including with location guide rail (3201) sliding fit's regulating block structure (32061), second locking bolt (32062) is installed to the side of regulating block structure (32061), the end of second locking bolt (32062) passes regulating block structure (32061) and cooperates with location guide rail (3201), second spring (3204) is connected with the another side of regulating block structure (32061), second spring (3204) is located between centre gripping slider (3202) and regulating block structure (32061).

6. The on-line straightness detector of claim 5, wherein: the fixed idler wheel (3205) is connected with the positioning guide rail (3201) through a second plate width fixed block (3207);

the second plate width fixing block (3207) and the first plate width adjusting block (3206) are identical in structure, and the fixing idler wheels (3205) are mounted on the upper surface of the adjusting block structure (32061).

7. The on-line straightness detector of claim 1, wherein: the structure of the anti-floating pressure retainer (35) is as follows: including installing door type support (3502) in platform body (31), door type support (3502) middle part below is installed and is compressed tightly cylinder (3503), compress tightly cylinder (3503) output and set up and press and hold end (3501), press and hold end (3501) and work piece (40) upper surface sliding fit.

8. The on-line straightness detector of claim 1, wherein: a fluency strip (34) is arranged on the upper surface of the platform body (31) between the detector (33) and the positioning clamp holder (32), and the upper surface of the fluency strip (34) slidably supports the lower surface of the workpiece (40).

9. The on-line straightness detector of claim 8, wherein: the structure of the fluency strip (34) is as follows: including mounting groove (3401), a plurality of wheels (3402) of rolling are installed along the length direction who draws platform body (31) in mounting groove (3401), roll wheel (3402) surface with the lower surface cooperation of work piece (40).