CN212704019U

CN212704019U - Mould for stretch bending of section bar

Info

Publication number: CN212704019U
Application number: CN202021299958.2U
Authority: CN
Inventors: 张立伟
Original assignee: Qingdao Stride Forward Rail Transit Equipment Co ltd
Current assignee: Qingdao Stride Forward Rail Transit Equipment Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-16
Anticipated expiration: 2030-07-06

Abstract

The utility model belongs to the technical field of the section bar stretch bending, especially, be a mould for section bar stretch bending, including the stretch bender body, the slider has been seted up on the stretch bender body, the bottom welded fastening of slider has first cylinder, the circular slot has been seted up to first cylindrical bottom, slidable mounting has the second cylinder in the circular slot, second cylindrical bottom extends to outside the circular slot and welded fastening has the die head, all seted up on the both sides inner wall of circular slot and rotated the hole, two rotate downthehole hexagon bolts that all are equipped with, the rectangular channel has been seted up at second cylindrical top, welded fastening has the circular cone on the top inner wall of circular slot, all seted up the round hole on the both sides inner wall of rectangular channel, equal slidable mounting has the internal thread sleeve in two circular holes, and two internal thread sleeves run through corresponding round holes respectively. The utility model discloses it is practical good, not only change die head comparatively simple to also possess fine steadiness.

Description

Mould for stretch bending of section bar

Technical Field

The utility model relates to a section bar stretch bending technical field especially relates to a section bar is mould for stretch bending.

Background

With the increasing requirements of the current market on automobiles and airplanes, the difficulty of the production and the manufacture of the automobiles and the airplanes is gradually increased; in the production and manufacturing process of automobiles and airplanes, bending treatment is often required to be carried out on some required sectional materials; such as leaf springs for automobiles, skin-like parts for airplanes, etc., and flexible dies for stretch bending of profiles are generally required to perform this operation.

Through retrieval, the grant bulletin number is CN107716718B discloses a flexible mould for section bar stretch bending, including the base, the last lateral wall of base is vertical to be equipped with two extension boards that are parallel to each other and two first T type spouts are equipped with to two relative lateral wall symmetries of extension board, two sliding connection has first T type slider in the first T type spout, and is connected with the diaphragm in two first T type sliders, transversely be equipped with second T type spout that the opening is decurrent in the diaphragm, and be equipped with second T type slider in the second T type spout, one side inner wall of second T type spout is equipped with flexible motor, and the output shaft and the second T type slider fixed connection of flexible motor, the lateral wall of second T type slider is connected with the die head through the connecting rod. The invention is convenient to position the punching die head; when the stretch bending amplitude of the section bar needs to be changed, the stretch bending degrees of the section bar with different amplitudes are changed by changing the corresponding punching die heads, and the punching die heads are convenient to replace, so that the stretch bending efficiency of the section bar is improved.

However, the above-described flexible die for stretch bending of a profile is not so stable that the die head may fall off after a long time operation, and therefore, a die for stretch bending of a profile has been proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mould for stretch bending of section bars.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a die for stretch bending of a section bar comprises a stretch bender body, wherein a slide block is arranged on the stretch bender body, a first cylinder is fixedly welded at the bottom of the slide block, a circular groove is formed in the bottom of the first cylinder, a second cylinder is slidably arranged in the circular groove, the bottom end of the second cylinder extends out of the circular groove and is fixedly welded with a punching die head, rotating holes are formed in the inner walls of the two sides of the circular groove, hexagonal bolts are arranged in the two rotating holes, a rectangular groove is formed in the top of the second cylinder, a cone is fixedly welded on the inner wall of the top of the circular groove, round holes are formed in the inner walls of the two sides of the rectangular groove, internal thread sleeves are slidably arranged in the two circular holes, the two internal thread sleeves respectively penetrate through the corresponding round holes, the two hexagonal bolts are respectively matched with the corresponding internal thread sleeves, and a vertical plate is fixedly welded at one end, close to each other, of the, all seted up two spacing holes on the both sides inner wall of rectangular channel, the equal welded fastening in one side that two risers were kept away from each other has two gag lever posts, four gag lever posts respectively with the inner wall sliding connection in the spacing hole that corresponds, welded fastening has same round bar on the both sides inner wall of rectangular channel, two risers all with round bar sliding connection, the equal welded fastening in one side that two risers are close to each other has the spring, the spring sliding sleeve is established on the round bar.

Preferably, the vertical plate is provided with a sliding hole, and the round rod is connected with the inner wall of the sliding hole in a sliding manner.

Preferably, the inner walls of the two sides of the circular groove are provided with limit grooves, the two sides of the second cylinder are fixedly welded with limit blocks, and the two limit blocks are respectively connected with the inner walls of the corresponding limit grooves in a sliding mode.

Preferably, the bottom of the vertical plate is nested with a ball, and the ball is in rolling connection with the inner wall of the bottom of the rectangular groove.

Preferably, the stiffness coefficient of the spring is 50N/m.

Preferably, the rotating hole is concave, and the diameter of one side close to the cone is slightly smaller.

Compared with the prior art, the beneficial effects of the utility model are that: when the punching die head is installed, only the second cylinder with the punching die head is inserted into the groove of the first cylinder, when the two vertical plates continuously go upwards and contact with the cone, the two vertical plates are pushed away from each other, so that the two internal thread sleeves are far away from each other, the two internal thread sleeves respectively enter the corresponding rotating holes, then the two hexagon bolts are respectively screwed into the corresponding internal thread sleeves, and then the second cylinder with the punching die head is tightly fixed on the first cylinder, only need screw off two hex bolts when taking off the second cylinder, later under the spring action of spring, two risers drive two internal thread sleeves and break away from the rotation hole that corresponds respectively and be close to each other, treat that two internal thread sleeves break away from corresponding rotation hole completely after, the second cylinder alright with light follow first cylinder take off.

The utility model discloses it is practical good, not only change die head comparatively simple to also possess fine steadiness.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 2;

in the figure: 1. a stretch bender body; 2. a slider; 3. a first cylinder; 4. a circular groove; 5. a second cylinder; 6. rotating the hole; 7. a hexagon bolt; 8. a rectangular groove; 9. a cone; 10. a circular hole; 11. an internally threaded sleeve; 12. a vertical plate; 13. a limiting hole; 14. a limiting rod; 15. a round bar; 16. a spring; 17. and (4) punching the die head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a section bar stretch bending die comprises a stretch bending machine body 1, a slide block 2 is arranged on the stretch bending machine body 1, a first cylinder 3 is fixedly welded at the bottom of the slide block 2, a circular groove 4 is arranged at the bottom of the first cylinder 3, a second cylinder 5 is slidably mounted in the circular groove 4, the bottom end of the second cylinder 5 extends out of the circular groove 4 and is fixedly welded with a punching die head 17, rotating holes 6 are respectively formed in the inner walls of the two sides of the circular groove 4, hexagonal bolts 7 are respectively arranged in the two rotating holes 6, a rectangular groove 8 is formed in the top of the second cylinder 5, a cone 9 is fixedly welded on the inner wall of the top of the circular groove 4, round holes 10 are respectively formed in the inner walls of the two sides of the rectangular groove 8, internal thread sleeves 11 are respectively slidably mounted in the two round holes 10, the two internal thread sleeves 11 respectively penetrate through the corresponding round holes 10, the two hexagonal bolts 7 are respectively matched with the corresponding internal thread sleeves 11, a vertical plate 12 is fixedly welded at one end of, two limiting holes 13 are formed in the inner walls of two sides of the rectangular groove 8, two limiting rods 14 are fixedly welded on the sides, away from each other, of the two vertical plates 12, the four limiting rods 14 are respectively in sliding connection with the inner walls of the corresponding limiting holes 13, the same round rod 15 is fixedly welded on the inner walls of the two sides of the rectangular groove 8, the two vertical plates 12 are respectively in sliding connection with the round rod 15, springs 16 are fixedly welded on the sides, close to each other, of the two vertical plates 12, and the springs 16 are sleeved on the round rod 15 in a sliding mode;

the vertical plate 12 is provided with a sliding hole, the circular rod 15 is connected with the inner wall of the sliding hole in a sliding manner, the inner walls of two sides of the circular groove 4 are provided with limit grooves, two sides of the second cylinder 5 are fixedly welded with limit blocks, the two limit blocks are respectively connected with the inner walls of the corresponding limit grooves in a sliding manner, the bottom of the vertical plate 12 is nested with balls, the balls are connected with the inner wall of the bottom of the rectangular groove 8 in a rolling manner, the stiffness coefficient of the spring 16 is 50N/m, the rotating hole 6 is in a concave shape, the diameter of one side close to the cone 9 is slightly smaller, when the punching head 17 is installed, the second cylinder 5 with the punching head 17 is only required to be inserted into the groove 4 of the first cylinder 3, when the two vertical plates 12 are not disconnected and are contacted with the cone 9, the two vertical plates 12 are pushed to be away from each other, so that the two internal thread sleeves 11 are far away from each other, and then, afterwards in precessing corresponding internal thread sleeve 11 respectively with two hex bolts 7 again, then have the second cylinder 5 of die head 17 just by tightly fixed on first cylinder 4, only need screw down two hex bolts 7 when taking off second cylinder 5, later under spring 16's elastic force effect, two risers 12 drive two internal thread sleeves 11 and break away from corresponding rotation hole 6 respectively and be close to each other, treat that two internal thread sleeves 11 break away from corresponding rotation hole 6 back completely, second cylinder 5 alright with light take off from first cylinder 4, the utility model discloses it is good, not only change the die head comparatively simple to also possess fine steadiness.

The working principle is as follows: when the punching die head 17 is installed, only the second cylinder 5 with the punching die head 17 needs to be inserted into the groove 4 of the first cylinder 3, when the two vertical plates 12 are continuously upwards and contacted with the cone 9, the two vertical plates 12 are pushed to be away from each other, so that the two internal thread sleeves 11 can respectively enter the corresponding rotating holes 6, then the two hexagonal bolts 7 are respectively screwed into the corresponding internal thread sleeves 11, so that the second cylinder 5 with the punching die head 17 is tightly fixed on the first cylinder 4, when the second cylinder 5 is taken down, only the two hexagonal bolts 7 need to be screwed down, then under the elastic action of the spring 16, the two vertical plates 12 drive the two internal thread sleeves 11 to respectively separate from the corresponding rotating holes 6 and approach each other, after the two internal thread sleeves 11 are completely separated from the corresponding rotating holes 6, second cylinder 5 alright with light take off from first cylinder 4, the utility model discloses the practicality is good, not only changes die head comparatively simple to also possess fine steadiness.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a section bar mould for stretch bending, includes stretch bending machine body (1), its characterized in that: the stretch bender is characterized in that a sliding block (2) is arranged on a stretch bender body (1), a first cylinder (3) is fixedly arranged at the bottom of the sliding block (2), a circular groove (4) is arranged at the bottom of the first cylinder (3), a second cylinder (5) is slidably arranged in the circular groove (4), the bottom end of the second cylinder (5) extends out of the circular groove (4) and is fixedly provided with a die head (17), rotating holes (6) are respectively formed in the inner walls of two sides of the circular groove (4), hexagonal bolts (7) are respectively arranged in the two rotating holes (6), a rectangular groove (8) is formed in the top of the second cylinder (5), a cone (9) is fixedly arranged on the inner wall of the top of the circular groove (4), round holes (10) are respectively formed in the inner walls of two sides of the rectangular groove (8), an internal thread sleeve (11) is respectively slidably arranged in the two round holes (10), and the two internal thread sleeves (11) respectively penetrate through the corresponding round, and two hexagon bolts (7) respectively with the internal thread sleeve (11) looks adaptation that corresponds, two internal thread sleeves (11) the equal fixed mounting in one end that is close to each other have riser (12), two spacing holes (13) have all been seted up on the both sides inner wall of rectangular channel (8), and the equal fixed mounting in one side that two risers (12) kept away from each other has two gag lever post (14), four gag lever post (14) respectively with the inner wall sliding connection of the spacing hole (13) that corresponds, fixed mounting has same round bar (15) on the both sides inner wall of rectangular channel (8), and two risers (12) are all with round bar (15) sliding connection, and the equal fixed mounting in one side that two risers (12) are close to each other has spring (16), spring (16) slip cap is established on round bar (15).

2. The mold for stretch bending of sectional material according to claim 1, wherein: a sliding hole is formed in the vertical plate (12), and the round rod (15) is connected with the inner wall of the sliding hole in a sliding mode.

3. The mold for stretch bending of sectional material according to claim 1, wherein: the limiting grooves are formed in the inner walls of the two sides of the circular groove (4), limiting blocks are fixedly mounted on the two sides of the second cylinder (5), and the two limiting blocks are connected with the inner walls of the corresponding limiting grooves in a sliding mode.

4. The mold for stretch bending of sectional material according to claim 1, wherein: the bottom of the vertical plate (12) is nested with a ball, and the ball is in rolling connection with the inner wall of the bottom of the rectangular groove (8).

5. The mold for stretch bending of sectional material according to claim 1, wherein: the spring (16) has a stiffness coefficient of 50N/m.

6. The mold for stretch bending of sectional material according to claim 1, wherein: the rotating hole (6) is concave, and the diameter of one side close to the cone (9) is slightly smaller.