CN211926756U - Rapid resilience precision detection device for space bent pipe with straight line segment - Google Patents

Abstract

The utility model discloses a resilience precision short-term test device of space return bend with straightway, its the device include the first bending angle measuring module of datum plane, space plane second bending angle measuring module, bottom plate. The first bending angle measuring module of the reference plane and the second bending angle measuring module of the space plane are installed on the bottom plate, the pipe fitting is clamped on the measuring modules at two different angles, the distance between the limiting strips on the disc is adjusted according to the angle fluctuation range of the bent pipe, and if the pipe fitting can be clamped into the limiting rods with the adjusted distance, the pipe fitting is qualified. The device can achieve the purpose of rapid detection. Moreover, the pipe fitting can adapt to pipe fittings with different diameters, and the use universality is high.

Description

Rapid resilience precision detection device for space bent pipe with straight line segment

Technical Field

The utility model relates to a pipe fitting measuring device, concretely relates to resilience precision short-term test device of space return bend with straightway.

Background

The metal pipe fitting is bent and formed by determining a reasonable fulcrum and a stress point and applying a certain bending moment or bending force. When the pipe is bent, the pipe blank passes through three horizontal supporting rollers and is fixed on a rotating arm which is connected with a rotating wheel into a whole by using a chuck, and the rotating arm drives the pipe blank to generate bending deformation when rotating. When the pipe blank is formed by bending, one end of the pipe blank is clamped in a clamping head of a bending die, a side pressing wheel presses the pipe blank against the groove profile of the bending die and rotates around the bending die, and the clamping head drives the pipe blank to rotate together. During bending forming, the inner side of the pipe fitting is extruded, and the outer side of the pipe fitting is stretched. The deformation of the metal material is divided into elastic deformation and plastic deformation, and when the elastic deformation occurs, the material can recover the original shape. Because the total deformation in the bending deformation area comprises elastic deformation and plastic deformation, when the bending piece is taken out of the die, the elastic deformation part recovers to cause the resilience of the pipe fitting, so that the accuracy of the bent and formed pipe fitting is often inaccurate. And the requirement on the angle precision of the bent pipe is higher in some special occasions, such as pipe fittings on space shuttles. Therefore, after the pipe is bent and formed, the precision is detected, and the angle is measured slowly in general, so that a device capable of detecting quickly is needed.

SUMMERY OF THE UTILITY MODEL

To the pipe fitting angle resilience appears easily when bending, and the defective work appears, whether qualified for the inspection return bend, the utility model provides a strong adaptability, detect quick, easy operation, efficient have the resilience precision short-term test device of straightway space return bend.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a quick detection device for resilience precision of a space bent pipe with a straight line section comprises a bottom plate, a first bending angle measurement module of a reference plane and a second bending angle measurement module of a space plane;

the first bending angle measuring module of the reference plane comprises a first measuring mechanism and a first positioning mechanism, and the first measuring mechanism is arranged on the first positioning mechanism;

the second bending angle measuring module of the space plane comprises a second measuring mechanism and a second positioning mechanism, and the second measuring mechanism and the first measuring mechanism have the same structure and are arranged on the second positioning mechanism;

the first positioning mechanism and the second positioning mechanism are installed on the bottom plate, the second positioning mechanism comprises a capacitance angle measurer, the space elbow to be measured is attached to the two measuring mechanisms through adjustment of the first measuring mechanism and the second measuring mechanism, and the angle change of the elbow to be measured can be rapidly measured through the capacitance angle measurer.

Furthermore, the first measuring mechanism comprises a disc, two limiting strips, four limiting rods, a supporting platform, a sliding block and a guide rail;

the supporting platform is arranged on the disc and can rotate around a mounting point along the disc, and the guide rail is fixedly arranged on the supporting platform; the sliding block is arranged on the guide rail and can slide along the guide rail;

the disc is provided with a first arc-shaped groove and a second arc-shaped groove, two limiting bars are respectively arranged on two sides of the supporting platform, round holes and long holes in the limiting bars are respectively aligned with the second arc-shaped groove and the first arc-shaped groove, the four limiting bars are respectively inserted into the round holes and the long holes of the limiting bars, and the lower ends of the limiting bars are fixed on the disc;

the supporting platform, the limiting strips, the limiting rods and the sliding blocks are used for supporting and limiting the straight pipe section of the space elbow to be measured.

Further, the first positioning mechanism comprises a guide wheel, a bottom plate guide rail, a supporting slide block, a mounting groove, a vertical rod, a rack, a motor, a gear and a first mounting frame, the bottom plate guide rail is mounted in the sliding mounting grooves in two sides of the bottom plate through the guide wheel, the supporting slide block is mounted on the bottom plate guide rail, the mounting groove is fixed on the supporting slide block, the vertical rod is mounted in a groove in the middle of the mounting groove, the rack is mounted on the vertical rod, the motor is mounted on the outer side of the mounting groove, and the gear is mounted on an output shaft of the motor and is meshed with the rack. The first mounting frame is fixed at the upper end of the vertical rod, and the first measuring mechanism is installed on the first positioning mechanism through the first mounting frame.

Furthermore, the second positioning mechanism comprises a rectangular sliding rod, a rectangular sleeve, an inclined rod, a connecting shaft, a capacitance angle measurer and a second mounting frame;

two ends of the connecting shaft are respectively installed on the bottom plate, one end of the connecting shaft is also provided with the right half part of the capacitance angle measurer, and the left half part of the capacitance angle measurer is installed on the bottom plate;

the other end of the connecting shaft is also rotatably connected with the bottom of the inclined rod.

One end of the rectangular sliding rod is rotatably connected to the middle of the inclined rod, one end of the rectangular sleeve is rotatably connected to the bottom plate, and the rectangular sliding rod is sleeved in the rectangular sleeve.

Further, the slider on be equipped with activity shelves pole, card rail, fixed shelves pole, the card rail set up the lower part of slider, be used for with the guide rail joint for the slider can follow the guide rail and slide, activity shelves pole and fixed shelves pole setting in the both sides of slider, be used for supporting and the location return bend that awaits measuring, but and adjustable distance adapts to the pipe fitting of different diameters.

Furthermore, a second threaded hole is formed in the rectangular sliding rod, a second open groove is formed in the rectangular sleeve, the stud penetrates through the second open groove and is screwed into the second threaded hole, and the positions of the rectangular sliding rod and the rectangular sleeve are fixed through screwing the nut.

Furthermore, the first mounting frame, the vertical rod, the second mounting frame and the inclined rod are matched with each other through keys and key grooves to limit circumferential rotation of the two mounting frames.

Furthermore, the mounting groove is fixed on the supporting sliding block through an angle code.

The utility model has the advantages as follows:

(1) the utility model discloses an among the resilience precision short-term test device of space return bend with straightway, the pipe fitting of different diameters is makeed to the movable shelves pole on the slider, and the commonality is better.

(2) The utility model discloses an among the resilience precision short-term test device of space return bend with straightway, can realize the first fixture of automatically regulated and second fixture vertical height, it is easy and simple to handle through motor drive.

(3) The utility model discloses an among the resilience precision short-term test device of space return bend with straightway, can realize having the resilience angle short-term test of the return bend of different bendings.

(4) The utility model discloses an among the resilience precision short-term test device of space return bend with straightway, the back is debugged to the device, and corresponding part rigidity, the pipe fitting that can put into is promptly qualified, can the short-term test pipe fitting whether qualified, and convenient operation is applicable to the pipe fitting short-term test of linking in batches.

(5) The utility model discloses an among the resilience precision short-term test device of space return bend with straightway, electric capacity angular surveying ware can turn into the current variation with the angle variation, and measuring current can reach the angle value, obtains the angle of down tube and bottom plate at once, can conveniently measure the return bend precision in the space to measurement accuracy is high.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a device for rapidly detecting the springback accuracy of a space bent pipe with a straight line section;

FIG. 2 is a schematic view of a first bend angle measurement module of the datum plane of FIG. 1;

FIG. 3 is a schematic view of the first measuring mechanism of FIG. 2;

FIG. 4 is a schematic structural view of the first positioning mechanism in FIG. 2;

FIG. 5 is a schematic view of a spatial plane second bend angle measurement module of FIG. 1;

FIG. 6 is a schematic view of the second positioning mechanism of FIG. 5;

FIG. 7 is a schematic view of the disc of FIG. 3 with specific parts;

FIG. 8 is a schematic view of the detail of the stop bar of FIG. 3;

FIG. 9 is a schematic view of the slider embodiment of FIG. 3;

FIG. 10 is a schematic view of the guide rail of FIG. 3 with details of the guide rail

FIG. 11 is a schematic view of details of the idler of FIG. 4;

FIG. 12 is a schematic view of the corner connector of FIG. 4;

FIG. 13 is a schematic view of a detailed part of the mounting slot of FIG. 4;

FIG. 14 is a schematic view of a particular part of the vertical rod of FIG. 4;

FIG. 15 is a schematic view of the first mount detail of FIG. 4;

FIG. 16 is a schematic view of a detail of the rectangular slide bar of FIG. 6;

FIG. 17 is a schematic view of the rectangular sleeve of FIG. 6 with details;

FIG. 18 is a schematic view of the particular components of the tilting lever of FIG. 6;

in the drawings, a reference plane first bending angle measuring module 1, a spatial plane second bending angle measuring module 2, a pipe 3, a bottom plate 4, a first measuring mechanism 11, a first positioning mechanism 12, a disc 111, a limit bar 112, a limit rod 113, a support platform 114, a slider 115, a guide rail 116, a first arc-shaped groove 1111, a second arc-shaped groove 1112, a first opening 1113, a second opening 1114, a circular hole 1121, a long hole 1122, a movable stopper 1151, a clamp rail 1152, a fixed stopper 1153, a third positioning cylinder 1161, a positioning hole 1162, a clamp rail groove 1163, a first mounting frame 120, a guide wheel 121, a bottom plate guide rail 122, an angle code 123, a support slider 124, a mounting groove 125, a vertical rod 126, a rack 127, a motor 128, a gear 129, a second positioning cylinder 1202, a second groove 1203, a threaded section, a mounting plate 1251, a first slot 1252, a first threaded hole 1253, a first positioning cylinder 1211 1, a first key groove 1262, the measuring device comprises a first groove 1263, a second measuring mechanism 21, a second positioning mechanism 22, a rectangular sliding rod 221, a rectangular sleeve 222, an inclined rod 223, a connecting shaft 224, a capacitance angle measurer 225, a second mounting frame 226, a second threaded hole 2211, a second groove 2221, a counter bore 2231, a first hinge hole 2232, a third hinge hole 2233, a bottom plate 4, a sliding mounting groove 41, a mounting hole 42 and a second hinge hole 43.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, and the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-18, the utility model discloses a resilience precision short-term test device of space return bend with straightway, including the first bending angle measuring module 1 of datum plane, space plane second bending angle measuring module 2, bottom plate 4.

The first bending angle measuring module 1 of the datum plane comprises a first measuring mechanism 11 and a first positioning mechanism 12. The first measuring mechanism 11 comprises a disc 111, a limit bar 112, a limit rod 113, a supporting platform 114, a sliding block 115 and a guide rail 116, wherein the limit bar 112 is provided with a round hole 1121 and a long hole 1122, the disc 111 is provided with a first arc-shaped groove 1111, a second arc-shaped groove 1112, a first opening 1113 and a second opening 1114, and the first arc-shaped groove 1111 and the second arc-shaped groove 1112 are used for inserting the limit rod 113 and enabling the limit rod 113 to slide along the limit rod to adjust the gap; the first opening 1113 is inserted with the first positioning cylinder 1261, the second opening 1114 is inserted with the second positioning cylinder 1202, so that the disc can be installed on the first mounting rack 120, the limiting bar 112 is provided with a circular hole 1121 and a long hole 1122, the circular hole 1121 and the long hole 1122 are used for inserting the limiting rods 113, the distance between the four limiting rods 113 can be adjusted to adjust the positions of the four limiting rods 113, and further the angle fluctuation range of the pipe fitting can be adjusted.

The sliding block 115 is provided with a movable stop rod 1151, a clamping rail 1152 and a fixed stop rod 1153, the movable stop rod 1151 is adjustable through a nut, so that the sliding block 115 can adapt to pipe fittings with different diameters, the clamping rail 1152 is inserted into a clamping rail groove 1163 and can slide along the clamping rail groove 1163, the guide rail 116 is provided with a third positioning cylinder 1161, a positioning hole 1162 and a clamping rail groove 1163, and the third positioning cylinder 1161 and the positioning hole 1162 position the guide rail 116 together.

The first positioning mechanism 12 includes a first mounting frame 120, a guide wheel 121, a bottom plate guide rail 122, an angle code 123, a support slider 124, a mounting groove 125, a vertical rod 126, a rack 127, a motor 128, and a gear 129, wherein the upper end of the guide wheel 121 is provided with a threaded section 1211 for cooperating with a nut to screw the guide wheel on the bottom plate guide rail 122, the mounting groove 125 is provided with a mounting plate 1251, a slot 1252, and a first threaded hole 1253, the mounting plate 1251 is used for mounting the motor 128, the slot 1252 is used for facilitating the engagement of the rack 127 and the gear 129, the first threaded hole 1253 is used for mounting the angle code 123, the vertical rod 126 is provided with a first positioning cylinder 1261, a first key groove 1262, and a first groove 1263, the first groove 1263 is used for mounting the rack 129,

the first mounting frame 120 is provided with a second key groove 1201, a second cylinder 1202 and a second groove 1203, the second key groove 1201 is used for positioning circumferential rotation of the first mounting frame 120, and the second groove 1203 enables the limit rod 113 to smoothly slide along the second arc-shaped groove 1112. The first and second positioning cylinders 1261, 1202 are inserted into the first and second openings 1113, 1114 of the disc 111, to limit the rotation of the disc 111,

the spatial plane second bending angle measuring module 2 comprises a second measuring mechanism 21 and a second positioning mechanism 22. The second measuring device 21 is identical to the first measuring device 11 of the first bending angle measuring module 1. The second positioning mechanism 22 comprises a rectangular sliding rod 221, a rectangular sleeve 222, an inclined rod 223, a connecting shaft 224, a capacitance angle measurer 225 and a second mounting frame 226, wherein a second threaded hole 2211 is formed in the rectangular sliding rod 221, the second threaded hole 2211 is screwed into a stud, the stud is screwed with a nut, the relative position of the rectangular sleeve 222 and the rectangular sliding rod 221 can be fixed by screwing the nut, so that the angle of the inclined rod 223 is fixed, a second slot 2221 is formed in the rectangular sleeve 222, and the second slot 2221 enables the stud to penetrate through the rectangular sleeve 222 and be screwed into the second threaded hole 2211; the inclined rod 223 is provided with a counter bore 2231, a first hinge hole 2232 and a third key groove 2233, the counter bore 2231 is used for being mounted on the connecting shaft 224, the first hinge hole 2232 is used for mounting the rectangular sliding rod 221 on the inclined rod 223, and the third key groove 2233 limits the circumferential rotation of the second mounting frame 226. The capacitance angle measurer 225 can convert the angle change into a current change, and the angle value, i.e., the angle between the tilting lever 223 and the bottom plate 4, can be obtained by measuring the current.

Following do the utility model discloses a resilience precision short-term test device's of space return bend with straightway installation.

First, the reference plane first bending angle measuring module 1 is installed. Firstly, the first positioning mechanism 12 is installed, the horizontal position is found to fix the bottom plate 4, the support slider 124 is sleeved on the bottom plate guide rail 122, the installation hole on the bottom plate guide rail 122 is aligned with the two guide wheels 121 and then inserted, the nut is screwed on the threaded section 1211 on the guide wheels, the two guide wheels 121 are placed in the sliding installation groove 41, the two corner codes 123 are installed on the support slider 124 by using the screw, the first threaded hole 1253 at the bottom of the installation groove 125 is aligned with the opening of the corner code 123 and then screwed in the screw, after the first groove 1263 of the vertical rod 126 is installed in the rack 127, the vertical rod 126 is inserted into the installation groove 125, the gear 129 is installed on the output shaft of the motor 128, the motor 128 is installed on the installation plate 1251 and fixed by using the screw, the gear 129 is meshed with the rack 127, the key is installed in the first key groove 1262 and is aligned with the second key groove, and then the first. Next, the first measuring mechanism 11 is installed, the disc 111 is installed on the first mounting rack 120, and is positioned by inserting the first positioning cylinder 1261 and the second positioning cylinder 1202 into the first opening 1113 and the second opening 1114 on the disc, the support platform 114 is sleeved on the first positioning cylinder 1261 with its bottom contacting the disc 111, the two spacing bars 112 are placed on the upper plane of the disc 111 with the circular holes 1121, 1122 aligned with the second arc-shaped groove 1112 and the first arc-shaped groove 1111, the spacing bars 113 are inserted along the two circular holes 1121, 1122, and are screwed down with nuts at the lower end, the guide rail 116 is sleeved on the first positioning cylinder 1261 with one end, the third positioning cylinder 1161 is inserted into the second opening 1114 with the bottom contacting the disc 111, and the slider 115 is installed on the guide rail 116 and can slide along it.

Next, the second bending angle measuring module 2 of the spatial plane is installed, the second positioning mechanism 22 is installed first, the bottom end of the inclined rod 223 is connected with the connecting shaft 224 through interference fit, the connecting shaft 224 is inserted into the installation hole 42, and the right half of the capacitance angle measuring device 225 is connected with the connecting shaft 224 through screws. The second mounting bracket 226 is mounted on the inclined rod 223 in the same manner as the first measuring mechanism 21 is mounted on the first measuring mechanism 11 of the reference plane first bending angle measuring module 1 by aligning the opening at one end of the rectangular sliding rod 221 with the first hinge hole 2232 and then inserting the pin, aligning the opening at one end of the rectangular sleeve 222 with the second hinge hole 43 and then inserting the pin, inserting the rectangular sliding rod 221 into the lifting sleeve 222, screwing the stud into the second threaded hole 2211 of the rectangular sliding rod 221 through the second slot 2221 of the rectangular sleeve 222, and screwing the nut onto the stud.

And finally, debugging the motor driving part to ensure that the vertical heights of the inclined part and the horizontal part are the same.

Following do the utility model discloses a resilience precision short-term test device's of space return bend with straightway working process or theory of operation.

When the device is used, firstly, a standard pipe is taken, the straight edge of the pipe is installed on the sliding block 115, the pipe is clamped by the adjusting sliding block 115, the capacitance angle measurer 225 and the motor 128 work simultaneously to enable the sliding blocks on the first measuring mechanism 11 and the second measuring mechanism 21 to clamp the pipe simultaneously, the straight edge part of the pipe is kept horizontal, the guide wheel 121 slides along the sliding installation groove 41 on the bottom plate 4, the supporting sliding block 124 slides along the bottom plate guide rail 122 to be adjusted, the straight edge of the pipe is also installed on the sliding block on the second measuring mechanism 21, the angle of the inclined rod 223 is adjusted, two bends of the pipe are enabled to be in contact with the supporting platform 114 and the supporting platform of the second measuring mechanism, and the nut fixing position on the stud on the. And adjusting the first measuring mechanism 11, adjusting the distance between the two limiting strips 112 according to the fluctuation range of the pipe fitting, screwing the nut at the bottom of the limiting rod 113 after the adjustment, and adjusting the second measuring mechanism 21 in the same way. And (3) taking the standard pipe fitting down, putting the pipe fitting to be measured, installing the straight edge part of the pipe fitting, adjusting the position of the pipe fitting, and if the pipe fitting is smoothly clamped into the first measuring mechanism 11 and the second measuring mechanism 21, indicating that the pipe fitting is qualified, otherwise, indicating that the pipe fitting is unqualified.

The capacitance angle measurer 225 can convert the angle change into a current change, and the angle value can be obtained by measuring the current, so that the angle between the inclined rod 223 and the bottom plate 4 can be obtained immediately. When the angle of the tilting rod 223 changes, the relative area between the two electrode plates changes, which causes a change in the capacitance and thus a change in the current.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention and is not intended to limit the invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. All modifications and equivalents made within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (8)

1. A quick detection device for resilience precision of a space bent pipe with a straight line section is characterized by comprising a bottom plate (4), a reference plane first bending angle measurement module (1) and a space plane second bending angle measurement module (2);

the datum plane first bending angle measuring module (1) comprises a first measuring mechanism (11) and a first positioning mechanism (12), wherein the first measuring mechanism (11) is installed on the first positioning mechanism (12);

the spatial plane second bending angle measuring module (2) comprises a second measuring mechanism (21) and a second positioning mechanism (22), the second measuring mechanism (21) and the first measuring mechanism (11) have the same structure, and are arranged on the second positioning mechanism (22);

first positioning mechanism (12) and second positioning mechanism (22) install bottom plate (4) on, second positioning mechanism (22) including electric capacity angular surveying ware (225), through the adjustment of first measuring mechanism (11) and second measuring mechanism (21), make two measuring mechanism of the laminating of the space return bend that awaits measuring, and through electric capacity angular surveying ware (225) can survey the space angle change between two bendings of the return bend that awaits measuring fast.

2. The device for rapidly detecting the springback precision of the space bent pipe with the straight line section according to claim 1, wherein the first measuring mechanism (11) comprises a disc (111), two limit strips (112), four limit rods (113), a supporting platform (114), a sliding block (115) and a guide rail (116);

the supporting platform (114) is arranged on the disc (111), the supporting platform (114) can rotate around a mounting point along the disc (111), and the guide rail (116) is fixedly arranged on the supporting platform (114); the sliding block (115) is arranged on the guide rail (116) and can slide along the guide rail (116);

a first arc-shaped groove (1111) and a second arc-shaped groove (1112) are formed in the disc (111), two limiting bars (112) are respectively installed on two sides of the supporting platform (114), round holes (1121) and long holes (1122) in the limiting bars are respectively aligned with the second arc-shaped groove (1112) and the first arc-shaped groove (1111), four limiting rods (113) are respectively inserted into the round holes (1121) and the long holes (1122) of the limiting bars (112), and the lower ends of the limiting rods (113) are fixed on the disc (111);

the support platform (114), the limiting strip (112), the limiting rod (113) and the sliding block (115) are used for supporting and limiting one bend of the bent pipe in the space to be measured.

3. The device for rapidly detecting the springback precision of a space bent pipe with a straight line section according to claim 1, wherein the first positioning mechanism (12) comprises a first mounting frame (120), a guide wheel (121), a bottom plate guide rail (122), a supporting slide block (124), a mounting groove (125), a vertical rod (126), a rack (127), a motor (128) and a gear (129), the bottom plate guide rail (122) is mounted in sliding mounting grooves (41) on two sides of the bottom plate (4) through the guide wheel (121), the supporting slide block (124) is mounted on the bottom plate guide rail (122), the mounting groove (125) is fixed on the supporting slide block (124), the vertical rod (126) is mounted in a groove in the middle of the mounting groove (125), the rack (127) is mounted on the vertical rod (126), and the motor (128) is mounted on the outer side of the mounting groove (125), the gear (129) is arranged on an output shaft of the motor (128) and is meshed with the rack (127); the first mounting frame (120) is fixed at the upper end of the vertical rod (126), and the first measuring mechanism (11) is installed on the first positioning mechanism (12) through the first mounting frame (120).

4. The apparatus for rapidly detecting the springback accuracy of a space bent pipe with straight line segments as claimed in claim 3, wherein the second positioning mechanism (22) comprises a rectangular sliding rod (221), a rectangular sleeve (222), an inclined rod (223), a connecting shaft (224), a capacitance angle measurer (225) and a second mounting rack (226);

two ends of the connecting shaft (224) are respectively installed on the bottom plate (4), one end of the connecting shaft is also installed on the right half part of the capacitance angle measurer (225), and the left half part of the capacitance angle measurer (225) is installed on the bottom plate (4);

the other end of the connecting shaft (224) is also rotatably connected with the bottom of the inclined rod (223);

one end of the rectangular sliding rod (221) is rotatably connected to the middle of the inclined rod (223), one end of the rectangular sleeve (222) is rotatably connected to the bottom plate (4), and the rectangular sliding rod (221) is sleeved in the rectangular sleeve (222).

5. The device for rapidly detecting the springback precision of the spatial bent pipe with the straight line section according to claim 2, wherein the sliding block (115) is provided with a movable stop lever (1151), a clamping rail (1152) and a fixed stop lever (1153), the clamping rail (1152) is arranged at the lower part of the sliding block (115) and used for being clamped with the guide rail (116), so that the sliding block (115) can slide along the guide rail (116), and the movable stop lever (1151) and the fixed stop lever (1153) are arranged at two sides of the sliding block (115) and used for supporting and positioning the bent pipe to be detected, and the distance can be adjusted to adapt to pipe fittings with different diameters.

6. The device for rapidly detecting the springback precision of a spatial bent pipe with a straight line section according to claim 4, wherein a second threaded hole (2211) is formed in the rectangular sliding rod (221), a second slot (2221) is formed in the rectangular sleeve (222), the stud is threaded into the second threaded hole (2211) through the second slot (2221), and the positions of the rectangular sliding rod (221) and the rectangular sleeve (222) are fixed by screwing a nut.

7. The apparatus for rapidly detecting the springback accuracy of a space bent pipe with straight line segments as claimed in claim 4, wherein the first mounting frame (120), the vertical rod (126), the second mounting frame (226) and the inclined rod (223) are matched with each other through keys and key slots to limit the circumferential rotation of the two mounting frames.

8. The device for rapidly detecting the springback precision of a space bent pipe with a straight line section as claimed in claim 3, wherein the mounting groove (125) is fixed on the supporting slider (124) through an angle code (123).

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