CN105665217A - Pasting device for fiber bragg grating sensor paster - Google Patents

Abstract

The invention relates to a pasting device for a fiber bragg grating sensor paster. The pasting device is composed of a rack box, an overturning control system and a gluing control system; the gluing control system comprises a piston pump, a switching mechanism and a gluing module; the overturning control system comprises a clamping module and an overturning control cover; the gluing module is connected to the bottom of the clamping module in a sliding manner; the switching mechanism is used for enabling the gluing module to be linked with a piston rod of the piston pump when gluing is needed and enabling the gluing module to be separated from the piston rod of the piston pump when gluing is not needed, and therefore it is guaranteed that the overturning control system can normally move; and the clamping module can clamp the sensor paster and performs 180-degree rotation in the rack box, and therefore the sensor paster can be accurately placed on a coated coating. The pasting device has the beneficial effects of being accurate in paster position and high in pasting efficiency.

Description

Pasting device for fiber grating sensor patch

Technical Field

The invention relates to a device for coating liquid or other fluids on a surface, in particular to a device for sticking a fiber grating patch.

Background

In recent years, optical fiber sensing, especially optical fiber grating sensing, is increasingly widely used in engineering detection due to its advantages of electromagnetic interference resistance, corrosion resistance, electrical insulation, high sensitivity, distributed large-range measurement and the like.

For example, the invention patent application with the application publication number of CN104567709A discloses a wang-shaped fiber grating sensor patch, three transverse edges of the wang-shaped fiber grating sensor patch from top to bottom are a strain temperature transverse edge, a single temperature transverse edge and a sticking edge respectively, wherein the strain temperature transverse edge and the single temperature transverse edge are provided with a transverse first strip-shaped hole and a transverse second strip-shaped hole respectively for suspending a fiber grating. When the sensor patch is used, the lower surface of the strain temperature transverse edge is adhered to a measured part through glue, the single temperature transverse edge is not adhered to the measured part, and the lower surface of the pasting edge is adhered to the measured part so as to fix the sensor patch. Therefore, when the sensor patch is fixed, two glue layers corresponding to the shape and the position of the temperature transverse edge and the sticking edge of one side are brushed on the surface of a tested piece, and glue can not be stuck at the position between the two glue layers corresponding to the single temperature transverse edge. This is a great difficulty in implementation. If manual gluing is adopted, the efficiency is low, the thickness of the glue layer and the uniformity of the gluing cannot be guaranteed, and the measurement precision of the sensor is seriously influenced. The use of mechanized equipment for gluing has the following problems: 1. the sensor patch has small size, the shape of the sensor patch needing gluing is relatively complex, and a large gluing device is not easy to operate. 2. The environment of the measured piece is complex and changeable, and the large-scale gluing device is inconvenient to carry.

Disclosure of Invention

The invention aims to solve the technical problem of providing a device for sticking a fiber grating sensor patch, which can not only finish gluing and sticking at one time, but also is convenient to carry and quick and accurate in sticking.

The technical scheme for solving the technical problems is as follows:

a pasting device of a fiber bragg grating sensor paster comprises a rack box, a turnover control system and a gluing control system; wherein,

the rack box is a cuboid with an open bottom and one side, a vertical arched through groove is oppositely arranged at the corresponding position of the front and the back of the rack box, and the arched through groove consists of an upper straight line section, a lower straight line section and a middle arched section; a convex part of the arched section of the arched through groove extends into the rack box to form a sliding pin which is concentric with the curvature center of the convex part;

the turnover control system comprises a turnover control cover arranged at one end of the upper part of the rack box and a clamping module arranged in the rack box at the lower part of the turnover control cover; wherein,

the shell of the clamping module is a cuboid, two vertical sliding grooves are respectively and oppositely arranged on the shell corresponding to the front surface and the back surface of the rack box, a trunnion is arranged at the center of the upper part of each sliding groove, and the two trunnions are coaxial;

a second compression spring is arranged between the top surface of the turnover control cover and the rack box, a transverse long hole corresponding to a straight line section at the upper part of an arched through groove arranged on the rack box is respectively arranged at the front and the rear of the turnover control cover, and the length of the long hole is greater than the curvature radius of a convex part of the arched section of the arched through groove arranged on the rack box;

the trunnion on the clamping module shell extends out of a straight line section at the upper part of the arched through groove arranged on the frame box and a long hole arranged on the turnover control cover, and the sliding pin on the frame box extends into the sliding groove on the clamping module shell; when the turnover control cover is pushed downwards to enable the trunnion to contact the convex part of the arch-shaped section of the arch-shaped through groove, under the combined action of the sliding pin and the sliding groove, the trunnion rolls along the convex part of the arch-shaped section of the arch-shaped through groove, and when the trunnion reaches the straight line section at the lower part of the arch-shaped through groove, the whole clamping module is turned over by 180 degrees up and down;

the shell of the clamping module is rectangular box-shaped and consists of a base and a gland; a clamping mechanism for clamping the fiber grating sensor patch is arranged in the shell and comprises two gear rack mechanisms;

two racks in the two gear rack mechanisms are positioned on the same side of the two gears and are overlapped up and down; the lower surfaces of two racks in the two gear rack mechanisms are respectively provided with guide grooves which are parallel to each other, and a guide rail extending into the guide grooves is arranged on the base corresponding to each guide groove;

the upper surfaces of two racks in the two gear rack mechanisms are oppositely provided with vertical clamping jaws for clamping the fiber grating sensor patches; a through groove is formed in the gland at a position corresponding to the clamping jaw, and extends to the edge of the gland along the length direction of the rack; the clamping jaw penetrates through the through groove to the upper surface of the gland;

a third compression spring parallel to the guide rail is arranged below one rack in the two gear rack mechanisms, one end of the spring is abutted against an abutting plate extending out of the lower surface of the rack, and the other end of the spring is abutted against the end part of a spring groove formed in the corresponding guide rail;

a transmission gear is coaxially arranged below two gears in the two gear rack mechanisms respectively, the transmission gears are meshed with each other, a pawl hinged on the base is arranged on the side surfaces of the transmission gears and the transmission gears, a claw tip positioned at one end of the pawl extends into the space between the gear teeth of the transmission gears, a fourth compression spring is arranged between the back surface of the claw tip and the inner wall of the base, and the other end of the pawl abuts against a button penetrating through the side wall of the base;

the gluing control system comprises a Pi-shaped gluing control cover sleeved at the other end of the upper part of the frame box, a piston pump and two first compression springs which are arranged between the gluing control cover and the frame box, a gluing module arranged at the lower part of the clamping module in the overturning control system and a switching mechanism arranged on the frame box at the lower part of the gluing control cover; wherein,

a piston rod of the piston pump is propped against the lower surface of the gluing control cover, and the piston cylinder is positioned on the upper surface of the frame box; the two first compression springs are positioned on two sides of the piston pump, one end of each first compression spring abuts against the lower surface of the gluing control cover, and the other end of each first compression spring abuts against the upper surface of the rack box;

the gluing module is also rectangular box-shaped, the cross section of the gluing module is the same as the bottom surface of the base in the clamping module, and the upper opening of the gluing module is open;

two groups of T-shaped heads are oppositely arranged on the inner edge of the upper opening of the gluing module, each group of T-shaped heads is two, a slide rail is downwards extended on the bottom surface of the base in the clamping module above each T-shaped head, a guide groove is arranged on each slide rail, and the T-shaped heads are arranged in the guide grooves in a penetrating manner;

the glue coating module is provided with a supporting pin on two side surfaces corresponding to the lower part of the trunnion on the clamping module;

the inner side of the bottom surface of the gluing module is provided with a glue inlet hole which is communicated with the outlet of the piston pump through a hose; the bottom surface of the gluing module is provided with a glue outlet area, and glue outlet holes are densely distributed in the glue outlet area; the shape of the glue outlet area is the same as that of the pasting area of the fiber grating sensor patch, the projection of the axis of the trunnion on the clamping module on the horizontal plane is taken as a symmetrical line, and the projection of the glue outlet area on the horizontal plane is mirror-symmetrical to the projection of the pasting area of the fiber grating sensor patch clamped on the clamping module on the horizontal plane;

the switching mechanism is as follows: the two side edges of the n-shaped gluing control cover extend into the rack box along the inner sides of the front and the back of the rack box respectively, the inner sides of the lower parts of the two side edges of the n-shaped gluing control cover are correspondingly provided with an L-shaped connecting rod respectively, the upper end of the vertical edge of each L-shaped connecting rod is overlapped with the lower end of the corresponding side edge of the n-shaped gluing control cover, a transverse groove and a transverse bulge which are embedded in a concave-convex manner are arranged between the two overlapped positions, the tail end of the transverse edge of each L-shaped connecting rod is provided with a notch, and the notch is matched with a bearing pin arranged on the gluing module; the L-shaped connecting rod is provided with a slide bar which extends outwards from the rack box and has a rectangular cross section at the intersection of the vertical edge and the transverse edge, the rack box corresponding to the slide bar is provided with an inverted U-shaped through groove with a groove width matched with the slide bar, and the slide bar penetrates out of the inverted U-shaped through groove and is connected with the rack box through a nut.

The quantity of the clamping jaws for clamping the fiber grating sensor patch by the sticking device and the position on the rack can be determined according to the shape and the structure of the fiber grating sensor patch, and particularly, the sticking device is suitable for clamping the connecting parts of two adjacent transverse edges of the fiber grating sensor patch.

The working principle of the pasting device of the fiber grating sensor paster is as follows:

1. clamping the fiber grating sensor patch: pressing down the turnover control cover to turn the clamping module over 180 degrees, and exposing the clamping jaws downwards to the outer side of the rack box; and then a button on the base of the clamping module is pressed, the two racks are separated under the action of a third compression spring, the fiber grating sensor patch is placed on a gland of the clamping module, and the button is released after the two racks are manually folded, so that the clamping of the fiber grating sensor patch is completed.

2. Gluing: communicating an inlet of the piston pump with the glue through a hose; and moving the slide bar on the L-shaped connecting rod to the U-shaped through groove close to the top of the vertical edge of the gluing module, at the moment, the transverse protrusions at the lower parts of the two side edges of the U-shaped gluing control cover are mutually embedded with the transverse grooves at the upper parts of the vertical edges of the L-shaped connecting rod, and the notch on the transverse edge of the L-shaped connecting rod clamps the bearing pin on the gluing module, namely, the linkage of the gluing module and the piston rod is completed at the moment. And after linkage is completed, the gluing control cover is pressed down, the piston pump conveys glue to the gluing module, meanwhile, the gluing module moves downwards to be in contact with the surface of a workpiece to be glued, the glue is uniformly smeared on the surface of the workpiece from the glue outlet area, and gluing is finished.

3. Pasting a fiber bragg grating sensor paster: after the gluing is finished, the linkage is released, namely, the slide bar on the L-shaped connecting rod is moved to the bottom part of the inverted U-shaped through groove far away from the vertical edge of the gluing module; then the overturning control cover is pressed down to enable the clamping module to overturn for 180 degrees and then continue to move downwards to the lowest position; then, after the button on the base of the clamping module is pressed down and the two racks are separated, the fiber grating sensor patch naturally falls on the previously coated adhesive layer.

The invention has the following beneficial effects:

1. during operation, the gluing module and the clamping module rotate around the coaxial trunnion, and the shape of the gluing area is the same as the pasting area of the fiber grating sensor patch, so that the fiber grating sensor patch just falls on the gluing area of the workpiece to be tested after the clamping module is turned over by 180 degrees up and down, and the position of the patch is accurate.

2. The glue is applied just like a seal is stamped, and the processes of glue injection and pasting of the fiber grating sensor patch are both mechanized, so that the efficiency is high.

3. Small size and convenient carrying.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the clamping module in the embodiment shown in fig. 1.

FIGS. 3-6 are schematic structural views of a transmission system in the clamping module shown in FIG. 2; fig. 3 is a front view, fig. 4 is a plan view, fig. 5 is a sectional view taken along line a-a in fig. 3, and fig. 6 is a bottom view.

Fig. 7 is an exploded view of the clamping module shown in fig. 2.

Fig. 8 to 9 are schematic structural diagrams of the turning control system in the embodiment shown in fig. 1 (the turning control cover is hidden in the drawings), wherein fig. 8 is a front view, and fig. 9 is a left view.

Fig. 10 is an exploded view of the turnover control system shown in fig. 8-9.

FIGS. 11-12 are schematic structural views of the glue module in the embodiment shown in FIG. 1; fig. 11 is a front view, and fig. 12 is a bottom view.

Fig. 13 is a schematic perspective view of the glue module shown in fig. 11-12.

Fig. 14 is a schematic view of the connection between the glue module and the clamping module.

FIGS. 15-16 are schematic views of the gluing control system in the embodiment shown in FIG. 1; fig. 15 is a front view, and fig. 16 is a left side view.

Fig. 17 is a schematic perspective view of the glue spreading control system shown in fig. 15-16.

Fig. 18 is an exploded view of the embodiment of fig. 1.

Fig. 19a to 19d are schematic diagrams of the operation principle of the gluing control system, wherein the dotted inverted U-shaped line indicates the motion track of the L-shaped connecting rod.

Fig. 20a to 20d are schematic views illustrating the operation principle of the roll-over control system.

Fig. 21a to 21c are schematic perspective views of three different states during the operation of the roll-over control system.

Detailed Description

The present embodiment will describe in detail a specific implementation method of the pasting device of the present invention by taking a wang-shaped fiber grating sensor patch disclosed in the invention patent application with the pasting application publication number CN104567709A as an example.

Referring to fig. 1 in conjunction with fig. 18, the application device in this example consists of a frame box 19, a turnover control system and a glue application control system.

The structure of the rack case 19 will be described below with reference to the drawings:

referring to fig. 8-10, the rack box 19 is a cuboid with an open bottom and one open side, a vertical arched through groove 20 is oppositely arranged at the corresponding position of the front and the back of the rack box, and the arched through groove 20 is composed of an upper collinear straight line section and a lower collinear straight line section and an arched section connecting the two straight line sections in the middle; the arc-shaped section of the arc-shaped through groove 20 is in a semi-circular arc shape, the convex part 4 of the arc-shaped through groove extends into the rack box 19 to form a sliding pin 21, and the sliding pin 21 is positioned at the center of the circle of the convex part 4 and falls on the connecting line of an upper straight line section and a lower straight line section;

the roll-over control system is described below with reference to the accompanying drawings:

referring to fig. 8-10 in conjunction with fig. 18, the turnover control system includes a turnover control cover 24 disposed at one end of the upper portion of the rack box 19 and a clamp module disposed in the rack box 19 below the turnover control cover 24;

referring to fig. 8 to 10, the housing of the clamping module is a rectangular parallelepiped, two faces of the housing corresponding to the front and the back of the rack box 19 are respectively and oppositely provided with a vertical sliding chute 23, a trunnion 22 is arranged on the housing right above each sliding chute 23, and the two trunnions 22 are coaxial. A second compression spring 26 is arranged between the top surface of the turnover control cover 24 and the rack box 19, a transverse long hole 25 corresponding to a straight line section at the upper part of an arched through groove 20 arranged on the rack box 19 is respectively arranged at the front and the rear, and the length of the long hole 25 is larger than the curvature radius of a convex part 4 of the arched section of the arched through groove 20 on the rack box 19;

referring to fig. 8 to 10, two trunnions 22 on the clamping module housing respectively extend out through a straight line segment at the upper part of a corresponding arcuate through slot 20 formed on a rack box 19 and a long hole 25 formed on a turning control cover 24, and a slide pin 21 on the rack box 19 extends into a slide slot 23 on the clamping module housing;

referring to fig. 20 a-20 d, when the roll-over control cover 24 is pushed downward, the trunnion 22 moves downward under the driving of the roll-over control cover 24, and when it contacts the convex portion 4 of the arcuate section of the arcuate through slot 20, it bypasses the slide pin 21 under the guidance of the arcuate section of the arcuate through slot 20. Under the combined action of the sliding pin 21 and the sliding groove 23, the trunnion 22 rolls along the convex part 4 of the arch section of the arch through groove 20, which is equivalent to applying a moment for driving the clamping module to turn over, and when the trunnion 22 reaches the straight line section at the lower part of the arch through groove 20, the whole clamping module turns over up and down by 180 degrees;

referring to fig. 2 and 7, the housing of the clamping module is rectangular box-shaped and is composed of a base 16 and a gland 17 matched with the base, and a clamping mechanism for clamping a fiber bragg grating sensor patch 38 shaped like a Chinese character 'wang' is arranged between the base 16 and the gland 17 which form the housing;

referring to fig. 3-6 in conjunction with fig. 7, the clamping mechanism includes a two-rack and pinion mechanism. Two racks 2 in the two gear rack mechanisms are positioned at the same side of the two gears 1 and are overlapped up and down; the lower surfaces of two racks 2 in the two gear rack mechanisms are respectively provided with guide grooves 5 which are parallel to each other, and a base 16 corresponding to each guide groove 5 is provided with a guide rail 6 which extends into the guide groove 5;

referring to fig. 3 to 6 and fig. 7, support plates 14 are respectively arranged above two racks 2 in the two rack and pinion mechanisms, the upper surfaces of the two support plates 14 are flush, and two pairs of vertical claws 15 for clamping the fiber grating sensor patches 38 in the shape of the Chinese character 'wang' are oppositely arranged on the upper surfaces of the two support plates 14; a through groove 18 is formed in the gland 17 at a position corresponding to the jaw 15, and the through groove 18 extends to the edge of the gland 17 along the length direction of the rack; the clamping jaw 15 penetrates to the upper surface of the gland 17 from the through groove 18; when the fiber grating sensor patch 38 in the shape of the Chinese character 'wang' is clamped, the two pairs of claws 15 just extend into the grooves between the three lateral sides of the Chinese character 'wang' to clamp the connecting parts of the two adjacent lateral sides (see fig. 18).

Referring to fig. 3 and 6, and with reference to fig. 7, a spring groove 7 is formed in the guide rail 6 below one rack 2 of the two rack-and-pinion mechanisms along the length direction thereof, and a support plate 9 extending into the spring groove 7 is disposed on the lower surface of the corresponding rack 2. A third compression spring 8 is arranged between the abutting plate 9 and the end part of the spring groove 7 close to the other rack, and the third compression spring 8 can push the corresponding rack to be far away from the other rack.

Referring to fig. 5 to 7, a transmission gear 10 is coaxially arranged below each of the two gears 1 in the two rack and pinion mechanisms, the two transmission gears 10 are engaged with each other, and the diameter of the root circle of the two transmission gears is larger than that of the tooth top circle of the gear 1 in the two rack and pinion mechanisms. The side surfaces of the two transmission gears 10 are provided with a pawl 12 hinged on a base 16, a claw tip positioned at one end of the pawl 12 extends into the space between the gear teeth of the transmission gears 10, a fourth compression spring 3 is arranged between the back surface of the claw tip and the inner wall of the base 16, and the other end of the pawl 12 is abutted against a button 13 arranged on the side wall of the base 16 in a penetrating way. Pressing the button 13 disengages the tip of the pawl 12 from the teeth of the drive gear 10.

The gluing control system is described below with reference to the accompanying drawings:

referring to fig. 15-17, the gluing control system comprises an n-shaped gluing control cover 45 sleeved at the other end of the upper part of the frame box 19, a piston pump 41 and two first compression springs 46 arranged between the gluing control cover 45 and the frame box 19, a gluing module 27 arranged at the lower part of the clamping module in the turnover control system, and a switching mechanism arranged on the frame box 19 at the lower part of the gluing control cover 45;

referring to fig. 15 in conjunction with fig. 17, the piston rod 44 of the piston pump 41 is positioned against the lower surface of the glue control cap 45, the piston cylinder is positioned on the upper surface of the frame box 19 and is supported by a fixed bracket 34 to the frame box 19, and the inlet 43 of the piston pump is connected by a hose to a glue storage tank. The two first compression springs 46 are positioned at two sides of the piston pump 41, one end of each first compression spring abuts against the lower surface of the gluing control cover 45, and the other end of each first compression spring abuts against the upper surface of the frame box 19;

referring to fig. 11-14, the gluing module 27 is also rectangular box-shaped, and has the same cross section as the bottom surface of the base 16 in the clamping module, and an open upper opening; two groups of T-shaped heads are oppositely arranged on the inner edge of the upper opening of the gluing module 27, each group of T-shaped heads is two, a slide rail 29 extends downwards from the bottom surface of the base 16 in the clamping module above each T-shaped head, a guide groove 11 is arranged on each slide rail 29, and the T-shaped heads are arranged in the guide grooves 11 in a penetrating manner; on the gluing module 27, a supporting pin 36 is respectively and oppositely arranged on two side surfaces corresponding to the lower part of the trunnion 22 on the clamping module;

12 and 13, the inner side of the bottom surface of the gluing module 27 is provided with a glue inlet hole 32 which is communicated with the outlet of a piston pump 41 through a hose 42; the bottom surface of the gluing module 27 is provided with a glue outlet area 28, the glue outlet area 28 is communicated with the glue inlet hole, and small glue outlet holes 30 are densely distributed in the glue outlet area 28; the shape of the glue outlet area 28 is the same as the shape of the strain temperature transverse edge and the sticking edge of the fiber grating sensor patch 38 in the shape of a Chinese character 'wang' (see fig. 12), and the projection of the axis of the trunnion 22 on the clamping module on the horizontal plane is taken as a symmetrical line, and the projection of the glue outlet area 28 on the horizontal plane is mirror-symmetrical to the projection of the sticking area of the fiber grating sensor patch 38 in the shape of a Chinese character 'wang' clamped on the clamping module on the horizontal plane;

referring to fig. 15 to 17, the switching mechanism is as follows: the two side edges of the n-shaped gluing control cover 45 respectively extend into the frame box along the inner sides of the front and the back of the frame box 19, the inner sides of the lower parts of the two side edges of the n-shaped gluing control cover 45 are respectively and correspondingly provided with an L-shaped connecting rod 31, the upper end of the vertical edge of each L-shaped connecting rod 31 is overlapped with the lower end of the corresponding side edge of the n-shaped gluing control cover 45, a transverse groove 35 and a transverse bulge 47 which are embedded in a concave-convex manner are arranged between the two overlapped positions, the tail end of the transverse edge of each L-shaped connecting rod 31 is provided with a notch 37, and the notch 37 is matched with a bearing pin 36 arranged on the gluing module 27; the L-shaped connecting rod 31 is provided with a sliding rod 39 which extends outwards from the rack box 19 and has a rectangular cross section at the intersection of the vertical edge and the transverse edge, the rack box 19 corresponding to the sliding rod 39 is provided with an n-shaped through groove 33 with the groove width matched with that of the sliding rod 39, and the sliding rod 39 penetrates out of the n-shaped through groove 33 and is connected with the rack box 19 through a nut 40.

The working principle of the gluing control system is briefly described in the following with the attached drawings:

referring to fig. 19a to 19d in conjunction with fig. 18, when the slide bar 39 of the L-shaped connecting rod 31 is located at one vertical side of the n-shaped through slot 33 away from the gluing module 27, the vertical side of the L-shaped connecting rod 31 is staggered from the transverse projections 47 of the two sides of the gluing control cover 45, i.e. the switching mechanism is in a disengaged state (see fig. 19 a); moving the sliding rod 39 of the L-shaped connecting rod 31 to lie on the transverse edge of the n-shaped through slot 33, with the transverse groove 35 at the upper end of the vertical edge of the L-shaped connecting rod 31 flush with said transverse projection 47, and with the notch 37 at the transverse edge of the L-shaped connecting rod 31 flush with the bearing pin 36 of the gluing module 27 (see fig. 19 b); the sliding rod 39 of the L-shaped connecting rod 31 is moved further to the position in which the n-shaped slot 33 is located at the top of one of the vertical edges of the gluing module 27, at which time said transverse groove 35 and the transverse projection 47 engage, and the notch 37 of the transverse edge of the L-shaped connecting rod 31 is blocked on the bearing pin 36, i.e. at which time the switching mechanism has linked the piston rod 44 of the piston pump 41 to the gluing module 27 (see fig. 19 c). Thereafter, the glue control cap 45 is pressed downwards, the glue module 27 is moved downwards by the switching mechanism, while the piston pump 41 delivers glue to the glue outlet area 28 until a suitable layer of glue is applied to the part to be glued (see fig. 19 d).

The working principle of the paste control system is briefly described in the following with the attached drawings:

with reference to figures 20a to 20d and 21a to 21c, and with reference to figure 18, after the gluing operation, the slide bar 39 on the L-shaped connecting rod 31 is moved to the bottom of the n-shaped slot 33, away from one of the vertical edges of the gluing module 27, so as to disengage the switching mechanism. The overturning control cover 24 is pressed down to drive the trunnion 22 to move downwards along the arched through groove 20, when the trunnion 22 moves to the convex part 4 in the middle of the arched through groove 20, the trunnion 22 rotates around the sliding pin 21 under the limitation of the convex part 4, meanwhile, due to the limitation of the sliding pin 21 on the sliding pin groove 23, the whole clamping module is forced to rotate around the sliding pin 21 along with the trunnion 22 until the trunnion 22 is separated from the arched section of the arched through groove 20, and at the moment, the clamping module is just overturned up and down by 180 degrees to enable the Wang-shaped fiber bragg grating sensor patch 38 clamped at the top of the clamping module to face downwards. When the clamping module moves to the bottommost part, the button 13 on the base 16 is pressed, the pawl 12 tilts, the two racks 2 drive the clamping jaws 15 to be separated towards two sides under the action of the third compression spring 8, and the Wang-shaped fiber grating sensor patch 38 naturally falls on the glued layer after losing clamping force.

The method for clamping the fiber grating sensor patch in the shape of the Chinese character 'wang' is briefly described in the following with the attached drawings:

referring to fig. 3-7 in combination with fig. 18, the button 13 is pressed down, the claws 15 are separated towards two sides, the optical fiber grating sensor patch 38 shaped like a Chinese character 'wang' is placed at a corresponding position on the clamping module gland 17, the two racks are manually folded to enable the four claws 15 to be respectively clamped at the roots (namely connecting parts) of four grooves surrounded by three transverse edges and two connecting parts of the optical fiber grating sensor patch 38 shaped like a Chinese character 'wang', then the button 13 is loosened, and the movement of the racks is limited by the pawl 12.

Claims (1)

1. A pasting device of a fiber bragg grating sensor paster comprises a rack box, a turnover control system and a gluing control system; wherein,

the rack box is a cuboid with an open bottom and one side, a vertical arched through groove is oppositely arranged at the corresponding position of the front and the back of the rack box, and the arched through groove consists of an upper straight line section, a lower straight line section and a middle arched section; a convex part of the arched section of the arched through groove extends into the rack box to form a sliding pin which is concentric with the curvature center of the convex part;

the turnover control system comprises a turnover control cover arranged at one end of the upper part of the rack box and a clamping module arranged in the rack box at the lower part of the turnover control cover; wherein,

the shell of the clamping module is a cuboid, two vertical sliding grooves are respectively and oppositely arranged on the shell corresponding to the front surface and the back surface of the rack box, a trunnion is arranged at the center of the upper part of each sliding groove, and the two trunnions are coaxial;

a second compression spring is arranged between the top surface of the turnover control cover and the rack box, a transverse long hole corresponding to a straight line section at the upper part of an arched through groove arranged on the rack box is respectively arranged at the front and the rear of the turnover control cover, and the length of the long hole is greater than the curvature radius of a convex part of the arched section of the arched through groove arranged on the rack box;

the trunnion on the clamping module shell extends out of a straight line section at the upper part of the arched through groove arranged on the frame box and a long hole arranged on the turnover control cover, and the sliding pin on the frame box extends into the sliding groove on the clamping module shell; when the turnover control cover is pushed downwards to enable the trunnion to contact the convex part of the arch-shaped section of the arch-shaped through groove, under the combined action of the sliding pin and the sliding groove, the trunnion rolls along the convex part of the arch-shaped section of the arch-shaped through groove, and when the trunnion reaches the straight line section at the lower part of the arch-shaped through groove, the whole clamping module is turned over by 180 degrees up and down;

the shell of the clamping module is rectangular box-shaped and consists of a base and a gland; a clamping mechanism for clamping the fiber grating sensor patch is arranged in the shell and comprises two gear rack mechanisms;

two racks in the two gear rack mechanisms are positioned on the same side of the two gears and are overlapped up and down; the lower surfaces of two racks in the two gear rack mechanisms are respectively provided with guide grooves which are parallel to each other, and a guide rail extending into the guide grooves is arranged on the base corresponding to each guide groove;

the upper surfaces of two racks in the two gear rack mechanisms are oppositely provided with vertical clamping jaws for clamping the fiber grating sensor patches; a through groove is formed in the gland at a position corresponding to the clamping jaw, and extends to the edge of the gland along the length direction of the rack; the clamping jaw penetrates through the through groove to the upper surface of the gland;

a third compression spring parallel to the guide rail is arranged below one rack in the two gear rack mechanisms, one end of the spring is abutted against an abutting plate extending out of the lower surface of the rack, and the other end of the spring is abutted against the end part of a spring groove formed in the corresponding guide rail;

a transmission gear is coaxially arranged below two gears in the two gear rack mechanisms respectively, the transmission gears are meshed with each other, a pawl hinged on the base is arranged on the side surfaces of the transmission gears and the transmission gears, a claw tip positioned at one end of the pawl extends into the space between the gear teeth of the transmission gears, a fourth compression spring is arranged between the back surface of the claw tip and the inner wall of the base (16), and the other end of the pawl is abutted against a button penetrating through the side wall of the base;

the gluing control system comprises a Pi-shaped gluing control cover sleeved at the other end of the upper part of the frame box, a piston pump and two first compression springs which are arranged between the gluing control cover and the frame box, a gluing module arranged at the lower part of the clamping module in the overturning control system and a switching mechanism arranged on the frame box at the lower part of the gluing control cover; wherein,

a piston rod of the piston pump is propped against the lower surface of the gluing control cover, and the piston cylinder is positioned on the upper surface of the frame box; the two first compression springs are positioned on two sides of the piston pump, one end of each first compression spring abuts against the lower surface of the gluing control cover, and the other end of each first compression spring abuts against the upper surface of the rack box;

the gluing module is also rectangular box-shaped, the cross section of the gluing module is the same as the bottom surface of the base in the clamping module, and the upper opening of the gluing module is open;

two groups of T-shaped heads are oppositely arranged on the inner edge of the upper opening of the gluing module, each group of T-shaped heads is two, a slide rail is downwards extended on the bottom surface of the base in the clamping module above each T-shaped head, a guide groove is arranged on each slide rail, and the T-shaped heads are arranged in the guide grooves in a penetrating manner;

the glue coating module is provided with a supporting pin on two side surfaces corresponding to the lower part of the trunnion on the clamping module;

the inner side of the bottom surface of the gluing module is provided with a glue inlet hole which is communicated with the outlet of the piston pump through a hose; the bottom surface of the gluing module is provided with a glue outlet area, and glue outlet holes are densely distributed in the glue outlet area; the shape of the glue outlet area is the same as that of the pasting area of the fiber grating sensor patch, the projection of the axis of the trunnion on the clamping module on the horizontal plane is taken as a symmetrical line, and the projection of the glue outlet area on the horizontal plane is mirror-symmetrical to the projection of the pasting area of the fiber grating sensor patch clamped on the clamping module on the horizontal plane;

the switching mechanism is as follows: the two side edges of the n-shaped gluing control cover extend into the rack box along the inner sides of the front and the back of the rack box respectively, the inner sides of the lower parts of the two side edges of the n-shaped gluing control cover are correspondingly provided with an L-shaped connecting rod respectively, the upper end of the vertical edge of each L-shaped connecting rod is overlapped with the lower end of the corresponding side edge of the n-shaped gluing control cover, a transverse groove and a transverse bulge which are embedded in a concave-convex manner are arranged between the two overlapped positions, the tail end of the transverse edge of each L-shaped connecting rod is provided with a notch, and the notch is matched with a bearing pin arranged on the gluing module; the L-shaped connecting rod is provided with a slide bar which extends outwards from the rack box and has a rectangular cross section at the intersection of the vertical edge and the transverse edge, the rack box corresponding to the slide bar is provided with an inverted U-shaped through groove with a groove width matched with the slide bar, and the slide bar penetrates out of the inverted U-shaped through groove and is connected with the rack box through a nut.