CN214470585U

CN214470585U - Efficient straightness detection platform jig

Info

Publication number: CN214470585U
Application number: CN202120644828.6U
Authority: CN
Inventors: 王树春; 王成军; 陈海萍; 郭华轩
Original assignee: Sunwell Jiangsu Carbon Fiber Composite Co ltd
Current assignee: Sunwell Jiangsu Carbon Fiber Composite Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-22
Anticipated expiration: 2031-03-30

Abstract

The utility model provides a platform jig for efficiently detecting straightness, which comprises a workbench, a base and a base, wherein the workbench is used for supporting a workpiece to be detected; the micrometer is used for measuring the straightness of the workpiece, a row of micrometers are arranged on the workbench along a straight line direction, and a measuring head of each micrometer faces the workpiece; each micrometer is connected with a data processing and displaying system through a data line; the bearing blocks are respectively positioned on the left side and the right side of the row of micrometer, the front end face of the bearing block and the measuring head of the micrometer are positioned on the same straight line, and a workpiece is abutted against the front end face of the bearing block during detection. The utility model provides an use the ruler to detect detection efficiency that the straightness accuracy exists low and the ruler appears warping and wearing and tearing, influence the problem of testing result's accuracy.

Description

Efficient straightness detection platform jig

Technical Field

The utility model belongs to the technical field of the panel straightness accuracy detects, concretely relates to high-efficient detection straightness accuracy platform tool.

Background

The composite material used by the wind power blade is a pultrusion type plate, the basic requirement of the pultrusion plate is that the plate can not be bent or is close to a straight effect, and after the plates are overlapped, the gap amount is less, and the structural strength of a product can be ensured. Therefore, the accuracy of the plate linearity measurement is critical and is an important judgment basis for determining whether the product is qualified.

The patent document with the publication number of CN208398790U of my company discloses a carbon fiber plate straightness detection tool, which comprises a detection platform, wherein a reference plate is arranged on one side above the detection platform along the length direction, the reference plate is perpendicular to the detection platform, a plurality of universal balls are uniformly distributed on the upper surface of the detection platform, and the heights of the universal balls are consistent. The result that this detection frock was measured can be more accurate reflects carbon fiber plate straightness accuracy itself.

However, the tooling needs to manually measure the deformation degree of the plate by using a feeler gauge and a depth caliper, and the detection efficiency is low.

In addition, the linearity platform is used for bearing a reference surface by means of a magnesium-aluminum flat ruler, and the magnesium-aluminum flat ruler still has the problems of deformation and abrasion and influences the accuracy of a detection result.

Because the customer has the standard value of measurationing of fixed length, current platform can't use the flat rule of integral type to accomplish the demand length, and the flat rule has accumulative deviation through the segmentation equipment, leads to the result of measurationing to accurately embody the true value, and the length is longer moreover, and the precision can be lower.

In order to improve the problem, the measurement process needs to be more scientific and efficient by integrating the redesign of the jig and the control and conversion of an automation program, so that the accuracy of the measurement result is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient detection straightness accuracy platform tool to there is detection efficiency low and the ruler appears warping and wearing and tearing in the solution use ruler to detect the straightness accuracy, influences the problem of testing result's accuracy.

The utility model provides a following technical scheme:

a high-efficiency linearity detection platform jig comprises

The workbench is used for supporting a workpiece to be detected;

the micrometer is used for measuring the straightness of the workpiece, a row of micrometers are arranged on the workbench along a straight line direction, and a measuring head of each micrometer faces the workpiece; each micrometer is connected with a data processing and displaying system through a data line;

the bearing blocks are respectively positioned on the left side and the right side of the row of micrometer, the front end face of the bearing block and a measuring head of the micrometer are positioned on the same straight line, and the workpiece is abutted against the front end face of the bearing block during detection.

Preferably, the measuring head of the micrometer is cylindrical or wedge-shaped, and the front end of the measuring head is in line contact with the workpiece along the vertical direction.

Preferably, the workbench is provided with a plurality of universal balls in front of the micrometer, and the universal balls and the workpiece are subjected to rolling friction during feeding.

Furthermore, a checking mechanism is also arranged on the workbench and used for checking whether the measuring heads of the micrometer are on the same straight line or not; the checking mechanism comprises a rope body, a bobbin and a fixing block, wherein the bobbin and the fixing block are respectively positioned at the left side and the right side of a row of micrometer, one end of the rope body is fixed on the bobbin, the rope body is tensioned on two bearing blocks, and the other end of the rope body is fixedly connected with the fixing block.

Preferably, the check-up mechanism still includes tensiometer and fixed pulley, the fixed pulley is located the right side of fixed block, the tensiometer install in between fixed block and the fixed pulley, the rope body is walked around connect behind the fixed pulley the tensiometer, the tensiometer is with the taut rope body of the pulling force value of settlement.

Furthermore, an anti-collision mechanism is arranged in front of the two bearing blocks on the workbench to prevent a workpiece from mistakenly colliding with a measuring head of the micrometer before contacting the bearing blocks, the anti-collision mechanism comprises a baffle and a transmission mechanism, a positioning hole matched with the baffle is formed in the workbench, and the baffle is lifted along the positioning hole; the transmission mechanism is in driving connection with the baffle so as to lift the baffle before detection and lower the baffle in the detection process.

Preferably, the transmission mechanism comprises a translation driving piece, a pull rod, a guide block, a cam bearing follower and a transmission column; the translation driving piece is in driving connection with the pull rod so as to drive the pull rod to move along the left and right directions; the guide block is fixed above the pull rod, the top of the guide block is provided with a slope surface which inclines along the left-right direction, the slope surface supports the cam bearing follower and changes the height of the cam bearing follower through rolling friction with the cam bearing follower, the cam bearing follower is installed on the transmission column, the transmission column is fixedly connected to the bottom of the baffle, and the baffle performs lifting action along with the translation of the pull rod.

Preferably, the left side and the right side of the baffle plate on the workbench are respectively provided with a sensing element for detecting whether a workpiece is close to the bearing block; the sensing element is connected to a controller, which is connected to the translational drive.

Furthermore, a support frame is arranged above the micrometer on the workbench, a dustproof roller shutter is arranged on the support frame, and the dustproof roller shutter can be pulled outwards to cover the micrometer.

The detection method of the platform jig for efficiently detecting the straightness comprises the following steps:

horizontally placing the workpiece on a workbench, and pushing the workpiece towards the direction of a micrometer;

when the workpiece triggers the sensing element, the sensing element sends a detection signal to the controller, and the controller receives the detection signal and controls the translation driving piece to move to lower the baffle;

continuously pushing the workpiece until the workpiece is abutted against the bearing block; each micrometer measures the distance between the micrometer and the workpiece, and a data processing and displaying system generates a data curve representing the deformation condition of the workpiece, so that the straightness of the end face of the workpiece is obtained.

Preferably, before the workpiece is inspected, it is checked whether the probes of the respective micrometers are on the same straight line, including the steps of: after the rope body is pulled out from the spool, the rope body is sequentially tensioned on the two bearing blocks and the fixed pulley, the end part of the rope body is fastened on a tension meter, and the tension meter applies standard tension to the rope body according to a set tension value; and observing whether the linear distances between the micrometer and the rope body are the same or not.

The utility model has the advantages that:

the utility model discloses utilize along the micrometer of inline to replace the flat rule, overcome the flat rule and need the concatenation because of length is not enough, cause the big problem of measuring error. Meanwhile, the problems that the leveling ruler is easy to rust and wear are solved, and the maintenance work of the leveling ruler is avoided. The utility model discloses the both sides configuration at the micrometer is held the piece and is in order to carry out rigidity butt location fast to the work piece, has improved detection efficiency and detection precision, protects the gauge head simultaneously not damaged by the work piece striking.

The utility model discloses a measuring result is accurate, need not manual use clearance gauge, depth caliper rule and goes to measurationing the deformation degree of panel, can directly generate corresponding curve with data by data processing display system through the data change of micrometer, has improved detection efficiency.

The utility model discloses a check-up mechanism can check up whether the gauge head of each micrometer is on same straight line before the detection achievement to prevent that the deviation from appearing in the initial value of each micrometer, improve and detect the precision. The rope body of the checking mechanism is tensioned on the bearing block and the fixed pulley and is tensioned by the tension meter to form a straight line, and the measuring heads of the micrometer are all on the same straight line if the distances from the measuring heads of the micrometer to the straight line are the same. Wherein, the bearing block has the functions of tensioning the rope body and calibrating the straight line.

The utility model discloses a crashproof mechanism avoids the work piece contact to bear the gauge head that hits the micrometer by mistake before the piece, prevents that the gauge head from damaging, guarantees the life of gauge head. The gauge head is kept off to anticollision institution's baffle before beginning to measure, and after the work piece triggered the sensing, the translation driving piece dropped the baffle, and then the work piece removed near the gauge head again, carries out effectual measurement.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic top view of embodiment 1 of the present invention;

fig. 2 is a schematic front view of embodiment 1 of the present invention;

fig. 3 is a schematic right-view structural diagram of embodiment 1 of the present invention;

FIG. 4 is a schematic view of a micrometer with a cylindrical probe;

FIG. 5 is a schematic view of a micrometer with a wedge probe;

fig. 6 is a schematic top view of embodiment 2 of the present invention;

fig. 7 is a schematic front view of the anti-collision mechanism according to embodiment 3 of the present invention;

fig. 8 is a schematic view of the installation structure of the dustproof roller shutter according to embodiment 3 of the present invention;

fig. 9 is a schematic top view of embodiment 4 of the present invention.

Labeled as: 1. a work table; 2. a micrometer; 3. a bearing block; 4. a ball transfer unit; 5. a data processing display system; 6. a workpiece; 7. a rope body; 8. a bobbin; 9. a tension meter; 10. a fixed pulley; 11. a fixed block; 12. a baffle plate; 13. a translation drive; 14. a pull rod; 15. a guide block; 16. a cam bearing follower; 17. a drive post; 18. a slope surface; 19. a limiting block; 20. a limiting wall; 21. a sensing element; 22. a support frame; 23. dustproof roller shutter.

Detailed Description

Example 1

As shown in fig. 1 to 3, a platform jig for efficiently detecting linearity comprises a worktable 1, a micrometer 2 and a bearing block 3.

The worktable 1 is used for supporting a workpiece 6 to be detected (such as a pultruded plate); the workbench 1 is supported by a rack, and cup legs and rollers are arranged at the bottom of the rack. A plurality of universal balls 4 are arranged in front of the micrometer 2 on the workbench 1, the heights of the universal balls 4 are the same, and rolling friction is generated between the universal balls 4 and a workpiece 6 during feeding, so that smooth, flexible and efficient feeding action is guaranteed.

The micrometer 2 is used for measuring the straightness of the workpiece, and can be a Western Waka 232 interface micrometer, or other types of micrometers. A row of micrometer 2 is arranged on the workbench 1 along a linear direction, and a measuring head of the micrometer 2 faces to the workpiece 6; each micrometer 2 is connected with a data processing and displaying system 5 through a data line, the data processing and displaying system 5 can collect the detection data of the micrometer, automatically generate a chart and display the chart on an interactive interface, and the chart represents the deformation condition of a workpiece by lines and is visual and convenient to read.

As shown in fig. 4 and 5, the micrometer 2 of the present embodiment selects a cylindrical or wedge-shaped probe, and the front end of the probe makes line contact with the workpiece in the vertical direction. The common ball type measuring head is in point contact with the workpiece, the contact area is small, the integral longitudinal structure of the corresponding measuring point on the end face of the workpiece cannot be embodied, the measuring head of the tool is in line contact with the workpiece along the vertical direction, the integral longitudinal value of the corresponding measuring point can be accurately reflected, and therefore the detection result is more accurate.

Two piece bear the piece 3 and lie in the left and right sides of this row micrometer 2 respectively, and bear the preceding terminal surface that leans on piece 3 and micrometer 2's gauge head and lie in same straight line, and work piece 6 supports the preceding terminal surface that leans on piece 3 during the detection, can not directly touch the gauge head, has prolonged the life of gauge head.

The detection method of the platform jig comprises the following steps:

horizontally placing a workpiece 6 on a universal ball 4 of a workbench 1, and pushing the workpiece towards the micrometer 2;

after the workpiece 6 moves to the abutting block 3, each micrometer 2 measures the distance between the workpiece 6 and the workpiece, and a data curve representing the deformation condition of the workpiece is generated by the data processing and displaying system 5, so that the straightness of the end face of the workpiece is obtained.

Example 2

The present embodiment is different from embodiment 1 in that, as shown in fig. 6, a verification mechanism for verifying whether or not the probes of the respective micrometers are on the same straight line is further installed on the table 1. The checking mechanism comprises a rope body 7, a spool 8, a tension meter 9, a fixed pulley 10 and a fixed block 11, wherein the spool 8 and the fixed block 11 are respectively positioned at the left side and the right side of a row of micrometer 2, and a non-return bearing is arranged in the spool 8 so as to tension the rope body 7 at any time. The fixed pulley 10 is positioned at the right side of the fixed block 11, and the tension meter 9 is arranged between the fixed block 11 and the fixed pulley 10. One end of the rope body 7 is fixed on the spool 8, the rope body 7 is tensioned on the two bearing blocks 3, the rope body 7 is connected with the tension meter 9 after bypassing the fixed pulley 10, and the tension meter 9 applies standard tension to the rope body 7 by a set tension value so as to be beneficial to detection operation standardization management and control. If the measuring heads of the micrometer 2 are all located on the same straight line, the data curve generated by the data processing display system is a straight line after verification.

In this embodiment, the bearing block 3 is rotatably installed on a rotating shaft, the bearing block 3 itself is in a cylindrical shape, and during the calibration process, when the rope body 7 moves around the bearing block 3, the bearing block 3 can rotate along with the rope body 7, so as to reduce the friction force between the two.

Example 3

The present embodiment differs from embodiment 2 in that, as shown in fig. 7 and 8, a collision prevention mechanism is installed on the table in front of the two bearing blocks 3 to prevent the workpiece 6 from erroneously hitting the gauge head of the micrometer 2 before contacting the bearing blocks 3. The anti-collision mechanism comprises a baffle plate 12 and a transmission mechanism, a positioning hole matched with the baffle plate 12 is formed in the workbench 1, and the baffle plate 12 is lifted along the positioning hole; a transmission mechanism is drivingly connected to the flapper 12 to raise the flapper 12 prior to commencing testing and to lower the flapper 12 during testing.

Specifically, the transmission mechanism includes a translation drive 13, a pull rod 14, a guide block 15, a cam bearing follower 16, and a transmission post 17. The translation driving part 13 is connected with the pull rod 14 in a driving mode so as to drive the pull rod 14 to reciprocate in the left-right direction, and the translation driving part 13 can be selected from an air cylinder or a lead screw. The guide block 15 is welded or screwed above the pull rod 14, the top of the guide block 15 is provided with a slope 18 which inclines along the left-right direction, the slope 18 supports the cam bearing follower 16, when the guide block 15 moves left and right, the slope 18 and the cam bearing follower 16 roll and rub, so that the height of the cam bearing follower 16 is changed, the cam bearing follower 16 is arranged on a transmission column 17 through a rotating shaft, the transmission column 17 is fixedly connected with the bottom of the baffle 12, and when the cam bearing follower 16 moves up and down, the baffle 12 moves up and down along with the transmission column 17.

Because the length dimension of the baffle 12 is large, in order to improve the balance of the lifting process of the baffle 12, two groups of guide blocks 15 and cam bearing followers 16 are arranged on the pull rod 14 at intervals, and the translation driving piece 13 synchronously drives the two groups of guide blocks 15 to move, so that the baffle 12 is stably lifted.

The pull rod 14 is further provided with a limiting block 19, a limiting wall 20 is arranged above the slope surface 18 of the guide block in parallel on the limiting block 19, and the limiting wall 20 and the slope surface 18 form a limiting groove for the cam bearing follower 16 to roll, so that the cam bearing follower 16 can be stably lifted.

The worktable 1 is provided with sensing elements 21 on the left and right sides of the fence 12, respectively, for detecting whether the workpiece 6 is close to the bearing block 3. The sensing element 21 may be selected from a micro switch or a proximity switch or a photo sensor, and the sensing element 21 is connected to a controller connected to the translation driving member 13. When the workpiece 6 moves to trigger the micro switch or enters the detection range of the proximity switch/photoelectric sensor, the sensing element 21 sends a detection signal to the controller, and the controller receives the detection signal and controls the translational driving part 13 to move to lower the baffle 12, so that the workpiece 6 can pass through smoothly.

The support frame 22 is installed above the micrometer 2 on the workbench 1, the dustproof roller shutter 23 is installed on the support frame 22, a winding drum of the dustproof roller shutter 23 is fixed on the support frame 22, a handle is installed at the free end of a shutter body of the dustproof roller shutter 23, the shutter body is outwards pulled and pulled through the handle, the handle is fixedly connected to a clamping hook on the support frame in a clamping mode, the dustproof roller shutter 23 covers the micrometer, and the dustproof effect is achieved. The dustproof roller shutter 23 is made of transparent plastic material, and the dial reading of the micrometer 2 can be clearly obtained through the dustproof roller shutter 23.

when the workpiece 6 triggers the sensing element 21 or enters the detection range of the sensing element 21, the sensing element 21 sends a detection signal to the controller, and the controller receives the detection signal and then controls the translational driving part 13 to move to lower the baffle 12, so that the top of the baffle 12 sinks into the positioning hole;

continuously pushing the workpiece 6 until the workpiece 6 abuts against the bearing block 3; each micrometer 2 measures the distance between the micrometer and the workpiece, and a data curve representing the deformation condition of the workpiece is generated by a data processing and displaying system 5, so that the straightness of the end face of the workpiece is obtained.

Example 4

The difference between the embodiment and the embodiment 3 is that, as shown in fig. 9, two sets of anti-collision mechanisms are installed on the workbench 1 in a mirror image manner along the front-back direction, so that double-side measurement of a workpiece is realized, the number of times of plate overturning is reduced, and the detection efficiency is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A platform jig for efficiently detecting straightness is characterized by comprising

The workbench is used for supporting a workpiece to be detected;

2. The efficient straightness platform tool that detects of claim 1, characterized in that, the gauge head of micrometer is cylindric or wedge form, along vertical direction line contact between the front end of gauge head and the work piece.

3. The jig for efficiently detecting the straightness of a platform according to claim 1, wherein the worktable is provided with a plurality of universal balls in front of the micrometer, and the universal balls roll and rub with the workpiece during feeding.

4. The efficient straightness detection platform jig according to claim 1, wherein the workbench is further provided with a checking mechanism for checking whether measuring heads of the micrometer gauges are on the same straight line; the checking mechanism comprises a rope body, a bobbin and a fixing block, wherein the bobbin and the fixing block are respectively positioned at the left side and the right side of a row of micrometer, one end of the rope body is fixed on the bobbin, the rope body is tensioned on two bearing blocks, and the other end of the rope body is fixedly connected with the fixing block.

5. The efficient straightness detection platform jig according to claim 4, wherein the calibration mechanism further comprises a tension meter and a fixed pulley, the fixed pulley is located on the right side of the fixed block, the tension meter is installed between the fixed block and the fixed pulley, the rope body is connected with the tension meter after passing around the fixed pulley, and the tension meter tensions the rope body with a set tension value.

6. The efficient straightness platform detecting jig according to claim 1, wherein an anti-collision mechanism is mounted on the workbench in front of the two bearing blocks to prevent a workpiece from mistakenly colliding with a measuring head of the micrometer before contacting the bearing blocks, the anti-collision mechanism comprises a baffle and a transmission mechanism, a positioning hole matched with the baffle is formed in the workbench, and the baffle is lifted along the positioning hole; the transmission mechanism is in driving connection with the baffle so as to lift the baffle before detection and lower the baffle in the detection process.

7. The efficient straightness platform detection tool that detects of claim 6, wherein, the drive mechanism includes translation driving piece, pull rod, guide block, cam bearing follower and drive post; the translation driving piece is in driving connection with the pull rod so as to drive the pull rod to move along the left and right directions; the guide block is fixed above the pull rod, the top of the guide block is provided with a slope surface which inclines along the left-right direction, the slope surface supports the cam bearing follower and changes the height of the cam bearing follower through rolling friction with the cam bearing follower, the cam bearing follower is installed on the transmission column, the transmission column is fixedly connected to the bottom of the baffle, and the baffle performs lifting action along with the translation of the pull rod.

8. The efficient straightness detecting platform jig according to claim 7, wherein the worktable is provided with sensing elements respectively arranged on the left side and the right side of the baffle plate for detecting whether a workpiece is close to the bearing block; the sensing element is connected with a controller, and the controller is connected with the translation driving piece.

9. The jig for efficiently detecting the straightness of a platform according to claim 1, wherein a support frame is installed on the worktable above the micrometer, a dustproof roller shutter is installed on the support frame, and the dustproof roller shutter can be pulled outwards to cover the micrometer.