CN111272037B - Quick detection mechanism for rebound precision of bent pipe - Google Patents

Abstract

The invention discloses a quick detection mechanism for rebound precision of an elbow, which comprises a disc, two limit strips, four limit rods, a supporting platform, a sliding block and a guide rail. According to the fluctuation range of the angle of the bent pipe, the fluctuation angle is limited by adjusting the limiting strips, and after the adjustment is finished, whether the angle of the pipe fitting is qualified or not can be judged by whether the pipe fitting can be clamped into the mechanism or not. The device can achieve the purpose of rapid detection and is suitable for detecting large-batch pipe fittings. The diameter of the clamping of the sliding block can be adjusted to adapt to the pipe fittings with different diameters. The use universality is strong.

Description

A quick detection mechanism for the springback accuracy of bent pipes

Technical Field

The invention relates to a pipe measuring device, in particular to a quick detection mechanism for the springback accuracy of a bent pipe.

Background technique

Metal pipe fittings are bent and formed by determining reasonable fulcrums and stress points and applying a certain bending moment or bending force. When the pipe is stretched and bent, the tube billet passes through three horizontal support rollers and is fixed on a rotating arm connected to the rotating wheel with a chuck. When the rotating arm rotates, the tube billet is driven to bend and deform. When bending, one end of the tube billet is clamped in the bending die chuck, and the side pressure wheel presses it against the groove surface of the bending die and rotates around the bending die. The chuck rotates with the tube billet. During bending, the inside of the tube is squeezed and the outside is stretched. The deformation of metal materials is divided into elastic deformation and plastic deformation. When elastic deformation occurs, the material will restore its original shape. Since the total deformation in the bending deformation zone includes elastic deformation and plastic deformation, when the bent part is taken out of the die, the elastic deformation part recovers and causes the tube to rebound, resulting in the accuracy of the tube after bending. In some special occasions, the accuracy of the bending angle is higher, such as the pipe fittings on the space shuttle. Therefore, after the pipe is bent and formed, the accuracy must be tested. However, accurate angle measurement is usually slow, so a mechanism that can quickly detect the angle is needed.

Summary of the invention

In view of the fact that pipe fittings are prone to angle rebound during bending and forming, resulting in defective products, in order to test whether the bent pipes are qualified, the present invention proposes a quick detection mechanism for the springback accuracy of bent pipes with strong adaptability, fast detection, simple operation and high efficiency.

In order to achieve the above object, the technical solution adopted by the present invention is as follows:

A quick detection mechanism for the springback accuracy of a bent pipe, the device comprises a disc, a limit strip, a limit rod, a support platform, a slider, a guide rail, and a support rod. The disc is provided with a first arc groove, a second arc groove, a first opening, and a second opening. The disc is fixed to the support rod through the first opening. The support platform and the guide rail are sleeved on the support rod, and the support platform can rotate around the support rod. The guide rail is fixed to the second opening through a positioning cylinder at its lower part to limit the guide rail.

The sliding block is arranged on the guide rail and can slide along the guide rail;

The two limit bars are respectively arranged on both sides of the support platform, and holes are arranged at both ends of the limit bars, which are respectively aligned with the first arc groove and the second arc groove. The limit rod is inserted into the hole at the end of the limit bar. When the position of the pipe is adjusted, the bottom end of the limit rod is fixed on the disc.

Furthermore, a movable blocking rod and two fixed blocking rods are arranged on the sliding block, and the movable blocking rods can be adjusted to adapt to pipes with different diameters.

Furthermore, a round hole is formed at one end of the limit strip, and a long hole is formed at the other end, so that the distance between the limit rods can be adjusted as required.

Furthermore, the limiting rod is provided with a shaft shoulder and a threaded section, the shaft shoulder is used to position the limiting rod from the upper side of the disc, and a nut is screwed onto the threaded section to fix the position of the limiting rod.

Furthermore, the guide rail is provided with a rail groove, and the slide block is installed on the guide rail along the rail groove and can slide along the guide rail.

Furthermore, the slide block is provided with a rail, and the rail is inserted into the rail groove to install the slide block on the guide rail.

Furthermore, the support platform is as high as the total height of the guide rail and the slider, so that the bent pipe is placed in a horizontal position, and the support platform is hollow inside to reduce weight.

The beneficial effects of the present invention are as follows:

(1) In the present bending pipe rebound accuracy rapid detection mechanism, the movable stop rod on the slide block enables the measurement of pipes of different diameters, and has good versatility.

(2) In the present bending pipe rebound accuracy rapid detection mechanism, after the device is debugged, the positions of the corresponding components are fixed, and the pipe fittings that can be inserted are qualified. Whether the pipe fittings are qualified can be quickly detected, the operation is convenient, and it is suitable for rapid detection of a large number of continuous pipe fittings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a quick detection mechanism for the springback accuracy of a bent pipe;

FIG2 is a schematic diagram of specific parts of the disc in FIG1 ;

FIG3 is a schematic diagram of specific parts of the limit strip in FIG1 ;

FIG4 is a schematic diagram of specific parts of the limiting rod in FIG1 ;

FIG5 is a schematic diagram of specific parts of the support platform in FIG1 ;

FIG6 is a schematic structural diagram of the slider in FIG1 ;

FIG7 is a schematic diagram of specific parts of the guide rail of FIG1;

In the figure, a disc 1, a limit strip 2, a limit rod 3, a support platform 4, a slider 5, a guide rail 6, a bent pipe 7, a mounting rod 8, a first arc groove 11, a second arc groove 12, a first opening 13, a second opening 14, a circular hole 21, a long hole 22, a shoulder 31, a threaded section 32, a third opening 41, a movable baffle rod 51, a rail 52, a fixed baffle rod 53, a positioning cylinder 61, a rail groove 62, and a fourth opening 63.

Detailed ways

The present invention will be described in detail below according to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become more clear. The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

As shown in Fig. 1-7, the quick detection mechanism of the bending pipe rebound accuracy of the present invention includes a disc 1, a limit strip 2, a limit rod 3, a support platform 4, a slider 5, and a guide rail 6. The disc 1 is provided with a first arc groove 11, a second arc groove 12, a first opening 13, and a second opening 14. The first arc groove 11 and the second arc groove 12 are used to insert the limit rod 3 and make the limit rod 3 slide along them to adjust the gap. The first opening 13 is used for disc installation, that is, it is sleeved on the mounting rod 8; the second opening 14 is used to position the circumferential rotation of the disc 1. The limit strip 2 is provided with a circular hole 21 and a long hole 22. The circular hole 21 and the long hole 22 are used to insert the limit rod 3, and the distance between the two limit rods 3 can be adjusted. The limit rod 3 is provided with a shoulder 31 and a threaded section 32. The shoulder 31 is used to position the limit rod 3 from the upper side of the disc 1. A nut is screwed onto the threaded section 32 to fix the position of the limit rod 3. A third opening 41 is provided on the support platform 4. The support platform 4 is installed by sleeved the third opening 41 on the mounting rod 8 and can rotate around it. A movable baffle rod 51, a rail 52 and a fixed baffle rod 53 are provided on the slider 5. The movable baffle rod 51 is adjustable through a nut so that the slider 5 can adapt to pipes of different diameters. The rail 52 is inserted into the rail groove 62 and can slide along it. A positioning cylinder 61, a rail groove 62 and a fourth opening 63 are provided on the guide rail 6. The guide rail 6 is installed by sleeved the fourth opening 63 on the mounting rod 8. The positioning cylinder 61 is inserted into the second opening 14 to position the guide rail 6.

The total height of the support platform 4, the guide rail 6 and the slider 5 is the same, so that the bent pipe is placed in a horizontal position, and the support platform 4 is hollow inside to reduce the weight.

The following is the installation process of the bending pipe rebound accuracy rapid detection mechanism of the present invention.

First, put the first opening 13 on the disc 1 on the mounting rod 8 and position it through the second opening 14, put the third opening 41 on the supporting platform 4 on the mounting rod 8, and make its bottom contact with the disc 1, put the fourth opening 63 on the guide rail 6 on the mounting rod 8, and at the same time insert the positioning cylinder 61 into the second opening 14 for positioning, and make the bottom of the guide rail 6 contact with the disc 1, install a retaining spring on the mounting rod 8 to fix it, install the slider 5 on the guide rail 6 along the retaining rail groove 62, and slide along it, put the two limit strips 2 on the upper plane of the disc 1, and align the circular hole 21 and the long hole 22 with the second arc groove 12 and the first arc groove 11 respectively, insert the limit rod 3 along the circular hole 21 and the long hole 22, and similarly install the limit rod 3 and the limit strip 2 on the other side of the supporting platform 4, and screw a nut on the threaded section 32 to fix the limit rod 3.

The following is the working process or principle of the bending pipe rebound accuracy rapid detection mechanism of the present invention.

When in use, first take a standard pipe fitting, place the straight edge of the pipe fitting on the slider 5, adjust the nut on it to clamp the pipe fitting, place the other straight edge of the pipe fitting on the support platform 4, and adjust the distance between the two limit bars 2 according to the fluctuation range of the pipe fitting. After adjustment, tighten the nuts at the bottom of the four limit bars 3, remove the standard pipe fitting, and place the pipe fitting to be measured. First install one side of the pipe fitting on the slider 5, adjust the position of the pipe fitting, if the pipe fitting is successfully inserted between the limit bars 3, it means that the pipe fitting is qualified, otherwise it is unqualified.

Those skilled in the art can understand that the above are only preferred examples of the invention and are not intended to limit the invention. Although the invention is described in detail with reference to the above examples, those skilled in the art can still modify the technical solutions recorded in the above examples or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, etc. made within the spirit and principle of the invention shall be included in the protection scope of the invention.

Claims (5)

1. The utility model provides a return bend precision rapid detection mechanism, its characterized in that includes disc (1), spacing (2), spacing stick (3), supporting platform (4), slider (5), guide rail (6), bracing piece (8), disc (1) on seted up first arc wall (11), second arc wall (12), first trompil (13), second trompil (14), disc (1) pass through first trompil (13) fix bracing piece (8) on, supporting platform (4) and guide rail (6) cover establish bracing piece (8) on, and supporting platform (4) can rotate around bracing piece (8), guide rail (6) fix through positioning cylinder (61) of its lower part in second trompil (14) carry out spacingly to guide rail (6).

The sliding block (5) is arranged on the guide rail (6) and can slide along the guide rail (6);

The two limit bars (2) are respectively arranged at two sides of the supporting platform (4), holes are respectively formed at two ends of the limit bars (2) and are respectively aligned with the first arc-shaped groove (11) and the second arc-shaped groove (12), the limit bars (3) are inserted into the holes at the end parts of the limit bars (2), and after the positions of the pipe fittings are adjusted, the bottom ends of the limit bars (3) are fixed on the disc (1);

The sliding block (5) is provided with a movable stop lever (51) and two fixed stop levers (53), and the movable stop lever (51) is adjusted to adapt to pipe fittings with different diameters;

One end of the limiting bar (2) is provided with a round hole (21), and the other end of the limiting bar is provided with a long hole (22), so that the distance of the limiting bar (3) is adjusted according to the requirement.

2. The quick detection mechanism for rebound precision of the bent pipe according to claim 1, wherein the limit rod (3) is provided with a shaft shoulder (31) and a thread section (32), the shaft shoulder (31) is used for positioning the limit rod (3) from the upper side of the disc (1), and a nut is screwed on the thread section (32) to fix the position of the limit rod (3).

3. The quick detection mechanism for rebound precision of the bent pipe according to claim 1, wherein the guide rail (6) is provided with a clamping rail groove (62), and the sliding block (5) is arranged on the guide rail (6) along the clamping rail groove (62) and can slide along the clamping rail groove.

4. The quick detection mechanism for rebound accuracy of the bent pipe according to claim 3, wherein the clamping rail (52) is arranged on the sliding block (5), and the clamping rail (52) is inserted into the clamping rail groove (62) to install the sliding block (5) on the guide rail (6).

5. The quick detection mechanism for the rebound precision of the bent pipe according to claim 1, wherein the total height of the supporting platform (4) is equal to the total height of the guide rail (6) and the sliding block (5), so that the bent pipe is placed in a horizontal position, and the supporting platform (4) is hollow, so that the weight can be reduced.