CN220626039U - Limiting mechanism for metal tube flattening test - Google Patents

Abstract

The utility model provides a limiting mechanism for a metal tube flattening test, which comprises a pressure-bearing table for lifting a metal tube, wherein the upper surface of the pressure-bearing table is provided with limiting grooves, the upper surface of the pressure-bearing table is provided with two clamping plates which are symmetrically arranged and used for limiting the position of the metal tube, the middle position of the lower surface of each clamping plate is fixedly connected with a limiting block, the middle position of the lower surface of each limiting block is fixedly connected with a supporting plate, the bottom in each limiting groove is provided with a strip-shaped groove which is arranged along the length direction of each limiting groove, both sides of each strip-shaped groove along the length direction of each strip-shaped groove are provided with fixing lugs, the upper ends of the fixing lugs are fixedly connected with the pressure-bearing table, the opposite surfaces of the two fixing lugs are respectively provided with a spring, and one end of each spring far away from each fixing lug is fixedly connected with each supporting plate: the space between the two clamping plates is changed along with the flattening degree of the metal tube, so that the metal tube is prevented from sliding in the flattening process.

Description

Limiting mechanism for metal tube flattening test

Technical Field

The utility model relates to a limiting mechanism for a metal tube flattening test, and belongs to the field of tube detection.

Background

The flattening test is an important test for detecting the technical performance of the pipe, when the flattening test is carried out, a detection sample is placed between a pressure-bearing table and a pressure plate, the pressure plate is driven by a hydraulic cylinder to move downwards, and pressure is uniformly applied to the metal pipe to flatten the metal pipe until the distance between the pressure plate and the pressure-bearing table reaches a value specified by relevant product standards under the action of force, and whether the appearance of the sample, the position of a welding seam is cracked or not or whether the crack is visible to naked eyes is checked. In the flattening test process, clamping plates are required to be arranged on two sides of a metal tube to limit the position of the metal tube, so that the metal tube is prevented from sliding under the limit of the clamping plates in the flattening test process, at present, the clamping plates for limiting the position of the metal tube are generally fixed on a bearing table, the width of the metal tube can be increased in the flattening process, the distance between the two clamping plates is required to be larger than the outer diameter of the metal tube, the sliding condition of the metal tube still occurs under the action of force in the flattening test process under the condition of the flattening test, and therefore, a limiting mechanism for the flattening test of the metal tube is required to be designed, and the distance between the two clamping plates is changed along with the flattening degree of the metal tube.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a limiting mechanism for a metal tube flattening test, so as to solve the problems in the prior art.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a metal tube flattens experimental stop gear, includes the pressure-bearing platform that is used for lifting the metal tube, the spacing groove has been seted up to pressure-bearing platform upper surface, pressure-bearing platform upper surface is equipped with two symmetrical arrangement's splint that are used for restricting the metal tube position, splint lower surface middle part position connection is fixed with the stopper, stopper slidable mounting is in the spacing inslot, stopper lower surface middle part position connection is fixed with the extension board, the bar groove of arranging along spacing groove length direction has been seted up in the spacing groove, the extension board lower extreme runs through the bar groove and extends to pressure-bearing platform downside, the bar groove all is equipped with the fixed lug along its length direction's both sides, fixed lug upper end is fixed with pressure-bearing platform connection, two the spring is all installed to fixed lug opposite face, the spring is arranged along the length direction of bar groove, the one end that the fixed lug was kept away from to the spring is connected fixedly with the extension board.

Further, a straight cylinder arranged along the length direction of the strip-shaped groove is arranged on one surface of the support plate, a telescopic rod is inserted into the straight cylinder, one end of the telescopic rod, which is positioned on the outer side of the straight cylinder, is connected and fixed with the support plate, and the spring is sleeved on the structure formed by the straight cylinder and the telescopic rod.

Further, a first positioning hole is formed in one surface of the support plate, facing the spring, and one end, close to the support plate, of the telescopic rod is fixedly connected to the first positioning hole.

Further, a second positioning hole is formed in one surface of the fixing lug, facing the spring, and one end of the straight cylinder is fixed in the second positioning hole.

Further, the cross section of the limiting groove is T-shaped, and the cross section of the limiting block is T-shaped.

Further, two corners of the upper surface of the clamping plate are respectively provided with a round corner, the limiting block and the clamping plate are of an integrated structure, and the supporting plate and the limiting block are of an integrated structure.

Further, the bottom of the pressure-bearing table is fixedly connected with two symmetrically arranged supports, two symmetrically arranged bottom plates are fixedly connected with the edges of the lower parts of the back sides of the supports, and the upper surface of each bottom plate is provided with a fixing hole for inserting a bolt.

The utility model has the beneficial effects that:

1. the metal tube is placed between the two clamping plates, at the moment, the two clamping plates are contacted with the outer surface of the metal tube under the action of spring force, when the hydraulic cylinder is controlled to extend, the fixed pressing plate connected with the movable end of the hydraulic cylinder is matched with the bearing table to flatten the metal tube, the clamping plates are extruded after the metal tube is flattened, the distance between the two clamping plates is enlarged, the clamping plates drive the limiting block to slide along the limiting groove, meanwhile, the distance between the supporting plate and the fixed lug is reduced, the compression amount of the spring is increased, the clamping plates are always attached to the surface of the metal tube, the distance between the two clamping plates is changed along with the flattening degree of the metal tube, and the metal tube is prevented from sliding in the flattening process.

2. When the limiting block slides along the limiting groove, sundries such as dust accumulated in the limiting groove can be discharged from the strip-shaped groove under the pushing of the limiting block, and the sliding of the limiting block is prevented from being influenced by the sundries such as dust.

3. Set up the structure that straight section of thick bamboo and telescopic link formed in the spring, and then the spring is at flexible in-process, and the length of the structure that straight section of thick bamboo and telescopic link formed is prolonged or grow, and straight section of thick bamboo and telescopic link support the spring all the time this moment, improve the stability of spring installation.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a limiting mechanism for a metal tube crush test according to the present utility model;

FIG. 2 is a schematic diagram illustrating the assembly of a spring, a clamping plate and a bearing table in a limiting mechanism for a metal tube flattening test according to the present utility model;

FIG. 3 is a schematic diagram showing assembly of a support plate, a limiting block and a clamping plate in a limiting mechanism for a metal tube flattening test of the present utility model;

in the figure: the device comprises a 1-bearing platform, a 2-clamping plate, a 3-limiting groove, a 4-bottom plate, a 5-support, a 6-fixing lug, a 7-strip-shaped groove, an 8-limiting block, a 9-straight cylinder, a 10-spring, an 11-telescopic rod, a 12-support plate, a 13-round corner and a 14-first positioning hole.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1, 2 and 3, the present utility model provides a technical solution: the utility model provides a metal tube flattening test's stop gear, including hold-down table 1, hold-down table 1 upper surface has seted up the spacing groove 3 that the cross section is T font, hold-down table 1 upper surface is equipped with two symmetrical arrangement's splint 2 that are used for restricting the metal tube position, wherein the stopper 8 of splint 2 integrated into one piece of fixed connection in the middle part of splint 2 lower surface is installed in spacing groove 3 in the slip, the fixed extension board 12 of stopper 8 integrated into one piece of cross section for T font lower surface middle part is fixed and is run through the bar groove 7 of arranging along spacing groove 3 length direction that the bottom was seted up in spacing groove 3 and extend to the pressure-down table 1 downside, the both sides of bar groove 7 along its length direction all are equipped with fixed ear 6, wherein fixed ear 6 upper end is fixed with hold-down table 1 connection, the spring 10 of arranging along the length direction of bar groove 7 is all installed to two fixed ear 6 opposite faces, the spring 10 is connected and fixed with the support plate 12 at one end far away from the fixed lug 6, the metal pipe is arranged between the two clamping plates 2, at the moment, the two clamping plates 2 are contacted with the outer surface of the metal pipe under the action of the elastic force of the spring 10, when the hydraulic cylinder is controlled to extend, the movable end of the hydraulic cylinder is connected and fixed with the pressure-bearing table 1 to realize flattening of the metal pipe, the clamping plates 2 are extruded after flattening of the metal pipe, the distance between the two clamping plates 2 is enlarged, at the moment, the clamping plates 2 drive the limiting block 8 to slide along the limiting groove 3, meanwhile, the distance between the support plate 12 and the fixed lug 6 is reduced, the compression amount of the spring 10 is enlarged, the clamping plates 2 are always attached to the surface of the metal pipe, the distance between the two clamping plates 2 is changed along with the flattening degree of the metal pipe, the metal pipe is prevented from sliding in the flattening process, and round corners 13 are processed at the two corners of the upper surface of the clamping plates 2, the sharpness of the corner of the clamping plate 2 is reduced, when the limiting block 8 slides along the limiting groove 3, sundries such as dust collected in the limiting groove 3 can be discharged from the strip-shaped groove 7 under the pushing of the limiting block 8, and the sliding of the limiting block 8 is prevented from being influenced by the sundries such as dust.

Referring to fig. 1, two symmetrically arranged supports 5 are fixedly connected to the bottom of the pressure bearing table 1, two symmetrically arranged bottom plates 4 are fixedly connected to the edges of the lower parts of the opposite surfaces of the two supports 5, fixing holes are formed in the upper surface of the bottom plates 4, and bolts penetrate through the fixing holes to be installed at required positions, so that the position of the pressure bearing table 1 is fixed.

Referring to fig. 2 and 3, a straight cylinder 9 arranged along the length direction of the strip-shaped groove 7 is installed in a second positioning hole formed in one surface of the fixing lug 6 facing the support plate 12, a telescopic rod 11 is inserted in the straight cylinder 9, one end of the telescopic rod 11 positioned outside the straight cylinder 9 is fixedly connected in a first positioning hole 14 formed in one surface of the support plate 12 facing the spring 10, one end of the straight cylinder 9 and one end of the telescopic rod 11 are respectively fixed in the second positioning hole and the first positioning hole 14, stability of installation of the straight cylinder 9 and the telescopic rod 11 is improved, the spring 10 is sleeved on a structure formed by the straight cylinder 9 and the telescopic rod 11, the structure formed by the straight cylinder 9 and the telescopic rod 11 is arranged in the spring 10, and then the length of the structure formed by the straight cylinder 9 and the telescopic rod 11 is prolonged or increased in the telescopic process of the spring 10, and at the moment, the straight cylinder 9 and the telescopic rod 11 support the spring 10 all the time, and stability of installation of the spring 10 are improved.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a stop gear of tubular metal resonator flattening test, includes pressure-bearing platform (1) that are used for lifting the tubular metal resonator, its characterized in that: the utility model discloses a pressure-bearing device is characterized in that a limit groove (3) is formed in the upper surface of a pressure-bearing table (1), two clamping plates (2) which are symmetrically arranged and are used for limiting the position of a metal pipe are arranged on the upper surface of the pressure-bearing table (1), limiting blocks (8) are fixedly connected to the middle position of the lower surface of the clamping plates (2), the limiting blocks (8) are slidably mounted in the limit groove (3), a support plate (12) is fixedly connected to the middle position of the lower surface of the limiting blocks (8), a strip-shaped groove (7) which is arranged along the length direction of the limit groove (3) is formed in the inner bottom of the limit groove (3), the lower end of the support plate (12) penetrates through the strip-shaped groove (7) and extends to the lower side of the pressure-bearing table (1), fixing lugs (6) are respectively arranged on two sides of the strip-shaped groove (7) along the length direction, springs (10) are respectively mounted on the upper ends of the fixing lugs (6) and the table (1), the springs (10) are respectively arranged on opposite sides of the fixing lugs (6), and the springs (10) are respectively arranged along the length direction of the strip-shaped groove (7).

2. The spacing mechanism for metal tube crush testing of claim 1, wherein: the utility model discloses a fixed ear, fixed ear (6) are installed towards the one side of extension board (12) and are followed straight section of thick bamboo (9) that bar groove (7) length direction arranged, install telescopic link (11) in straight section of thick bamboo (9), telescopic link (11) are in the one end in straight section of thick bamboo (9) outside and are connected fixedly with extension board (12), spring (10) cover is established on the structure that straight section of thick bamboo (9) and telescopic link (11) formed.

3. A spacing mechanism for metal tube crush testing as defined in claim 2, wherein: one surface of the support plate (12) facing the spring (10) is provided with a first positioning hole (14), and one end of the telescopic rod (11) close to the support plate (12) is fixedly connected in the first positioning hole (14).

4. A spacing mechanism for metal tube crush testing as defined in claim 2, wherein: the one side of the fixed lug (6) facing the spring (10) is provided with a second positioning hole, and one end of the straight cylinder (9) is fixed in the second positioning hole.

5. The spacing mechanism for metal tube crush testing of claim 1, wherein: the cross section of the limiting groove (3) is T-shaped, and the cross section of the limiting block (8) is T-shaped.

6. The spacing mechanism for metal tube crush testing of claim 1, wherein: rounded corners (13) are processed at two corners of the upper surface of the clamping plate (2), the limiting block (8) and the clamping plate (2) are of an integrated structure, and the supporting plate (12) and the limiting block (8) are of an integrated structure.

7. The spacing mechanism for metal tube crush testing of claim 1, wherein: two symmetrically arranged supports (5) are fixedly connected to the bottom of the pressure-bearing table (1), two symmetrically arranged bottom plates (4) are fixedly connected to the edges of the lower parts of the opposite surfaces of the supports (5), and fixing holes for inserting bolts are formed in the upper surfaces of the bottom plates (4).