阅读说明：本技术 一种后侧杠支架的加工工艺 (Machining process of rear side bar support ) 是由 陈建华 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种后侧杠支架的加工工艺,所述工艺先经过落料冲孔-折边-折弯-冲孔-翻孔-冲筋工艺制备而成,后侧杠支架为L型,后侧杠支架由直角梯形和长方形折边组成,直角梯形和长方形折边一体成型,直角梯形和长方形折边上设有加强折边,所述直角梯形最短的一端设有U型孔,直角梯形中心设有四边形孔,所述梯形孔设有加强折边,所述长方形折边上设有安装孔,长方形折边中弯折位置设有通孔,所述长方形折边上设有豁口；本发明通过冲压工艺,实现支架的制造,减少了板材的应用,增加了支架的抗震效果,通过在支架上设置折边压筋提高支架的机械强度,通过对安装孔进行翻孔,使安装孔边缘形成竖立边,提高支架安装时的抗震效果和牢固性。(The invention discloses a processing technology of a rear side bar support, which is prepared by blanking, punching, folding, bending, punching, hole flanging and rib punching technologies, wherein the rear side bar support is L-shaped, the rear side bar support consists of a right trapezoid and a rectangular folding edge, the right trapezoid and the rectangular folding edge are integrally formed, the right trapezoid and the rectangular folding edge are provided with reinforced folding edges, one shortest end of the right trapezoid is provided with a U-shaped hole, the center of the right trapezoid is provided with a quadrilateral hole, the trapezoid hole is provided with the reinforced folding edge, the rectangular folding edge is provided with a mounting hole, a bending position in the rectangular folding edge is provided with a through hole, and the rectangular folding edge is provided with a notch; according to the invention, through a stamping process, the manufacturing of the bracket is realized, the application of plates is reduced, the anti-seismic effect of the bracket is increased, the mechanical strength of the bracket is improved by arranging the folding and ribbing on the bracket, and the edge of the mounting hole forms a vertical edge by flanging the mounting hole, so that the anti-seismic effect and the firmness of the bracket during mounting are improved.)

1. A processing technology of a rear side bar support is characterized in that: the process is firstly prepared by blanking, punching, folding, bending, punching, hole flanging and rib punching, wherein the rear side bar support is L-shaped, the rear side bar support consists of a right trapezoid and a rectangular folding edge, the right trapezoid and the rectangular folding edge are integrally formed, the right trapezoid and the rectangular folding edge are provided with reinforcing folding edges, the shortest end of the right trapezoid is provided with a U-shaped hole, the center of the right trapezoid is provided with a quadrilateral hole, the trapezoid hole is provided with the reinforcing folding edge, the rectangular folding edge is provided with a mounting hole, a bending position in the rectangular folding edge is provided with a through hole, and the rectangular folding edge is provided with an opening; the process comprises the following steps:

step one, blanking and punching: arranging a sample punching die, mounting the sample punched die after sample arrangement on a punching machine, and placing a metal plate in the sample punched die for punching to obtain a plurality of substrates, wherein the substrates are pentagons, one group of opposite angles in the pentagons are right angles, one corner of the pentagons is provided with a notch, each pentagon is divided into a right trapezoid and a rectangle with the notch, the notch is positioned on one corner of the rectangle, a mounting hole is punched on the rectangle in the substrate, and the center of the right trapezoid in the substrate is punched with a quadrilateral hole for 3-4 s/time, 1 piece at a time;

step two, folding the edges: putting the base plate on a punching machine with a flanging and beading die, and punching to obtain a beading plate, wherein the beading plate is formed by punching flanging and beading on two sides of the base plate, and flanging is formed at the edge of a quadrilateral hole in the center of the base plate for 3-5 s/time, and 1 piece is formed each time;

step three, bending: placing the rib pressing plate into a corresponding bending machine, bending to form a support, and turning the rectangular folded edge position to form an included angle of 90 degrees for 3-5 s/time, wherein 1 piece is formed each time;

step four, punching: putting the bent bracket into a punching machine with a punching die for punching, putting the right-angled trapezoid part into the punching die, and punching the end part of the bracket into a U-shaped hole for 3-5 s/time, 1 piece at a time;

step five, hole flanging: placing the support obtained in the fourth step into a punching machine with a hole flanging die for punching, placing the rectangular part with the notch into the hole flanging die, and performing hole flanging treatment on the mounting hole for 3-5 s/time, wherein 1 piece is formed each time;

step six, rib punching: and (4) putting the support subjected to hole flanging treatment obtained in the step five into a punching machine with a rib punching die, and punching the bent position of the support subjected to hole flanging by the rib punching die to enable the bent part to form through holes for 4-6 s/time, wherein 1 piece is formed each time.

2. The process for manufacturing the rear side bar support according to claim 1, wherein: and when blanking and punching are carried out in the first step, grooves are punched at two ends of the folded edge position on the substrate.

3. The process for manufacturing the rear side bar support according to claim 1, wherein: the process steps of the bracket are added with a trimming process, namely the trimming process is added in each step, and burrs generated after the bracket is punched are removed.

4. The process for manufacturing the rear side bar support according to claim 1, wherein: the press machine of 80t is adopted in the first step, the press machine of 63t is adopted in the second step, the fourth step and the fifth step, and the press machine of 45t is adopted in the sixth step.

5. The process for manufacturing the rear side bar support according to claim 1, wherein: and (3) coating stretching oil on the bending part in the third step, cooling the bent part in an insulation can until the bent part reaches room temperature, placing air for rapid cooling to cause product cracking and material stress release.

Technical Field

The invention belongs to the field of machining, and particularly relates to a machining process of a rear side bar support.

Background

The support is used for an automobile oil cooler, the oil cooler comprises a cooling pipe, a cooling fin, a pressure limiting valve, a switch and the like, and the oil cooler is used for cooling lubricating oil and keeping the oil temperature within a normal working range. On a powerful intensified engine, an oil cooler must be installed due to the large thermal load. When the engine is running, the lubricating ability is reduced because the viscosity of the engine oil becomes thin as the temperature rises. Therefore, some engines are equipped with oil coolers, which function to lower the temperature of the oil and maintain a certain viscosity of the oil. The oil cooler is disposed in the lubricating system circulation oil path.

The bracket for the automobile cooling system has the advantages that the requirement on the strength of the product is high due to the severe working environment. The traditional bracket connects the trapezoidal plate and the rectangular folded edge through a welding process, and because the vibration amplitude of the mounting position of the bracket on an automobile is high, the welding position is easy to break, and the welded plate is large in thickness and heavy in mass, so that the material waste is caused, a new processing process is urgently needed to solve the problems.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to solve the defects in the prior art, and provides a stamping process, which realizes the processing of a bracket, reduces the application of plates and increases the anti-seismic effect of the bracket under the condition of not changing the mechanical strength of the bracket.

The technical scheme is as follows: the processing technology of the rear side bar support is characterized by comprising the following steps of blanking, punching, folding, bending, punching, hole flanging and rib punching, wherein the rear side bar support is L-shaped, the rear side bar support consists of a right trapezoid and a rectangular folded edge, the right trapezoid and the rectangular folded edge are integrally formed, a reinforcing folded edge is arranged on the right trapezoid and the rectangular folded edge, one shortest end of the right trapezoid is provided with a U-shaped hole, the center of the right trapezoid is provided with a quadrilateral hole, the trapezoid hole is provided with the reinforcing folded edge, the rectangular folded edge is provided with a mounting hole, a through hole is arranged at a bending position in the rectangular folded edge, and the rectangular folded edge is provided with a notch; the process comprises the following steps:

step one, blanking and punching: arranging a sample punching die, mounting the sample punched die after sample arrangement on a punching machine, and placing a metal plate in the sample punched die for punching to obtain a plurality of substrates, wherein the substrates are pentagons, one group of opposite angles in the pentagons are right angles, one corner of the pentagons is provided with a notch, each pentagon is divided into a right trapezoid and a rectangle with the notch, the notch is positioned on one corner of the rectangle, a mounting hole is punched on the rectangle in the substrate, and the center of the right trapezoid in the substrate is punched with a quadrilateral hole for 3-4 s/time, 1 piece at a time;

step two, folding the edges: putting the base plate on a punching machine with a flanging and beading die, and punching to obtain a beading plate, wherein the beading plate is formed by punching flanging and beading on two sides of the base plate, and flanging is formed at the edge of a quadrilateral hole in the center of the base plate for 3-5 s/time, and 1 piece is formed each time;

step three, bending: placing the rib pressing plate into a corresponding bending machine, bending to form a support, and turning the rectangular folded edge position to form an included angle of 90 degrees for 3-5 s/time, wherein 1 piece is formed each time;

step four, punching: putting the bent bracket into a punching machine with a punching die for punching, putting the right-angled trapezoid part into the punching die, and punching the end part of the bracket into a U-shaped hole for 3-5 s/time, 1 piece at a time;

step five, hole flanging: placing the support obtained in the fourth step into a punching machine with a hole flanging die for punching, placing the rectangular part with the notch into the hole flanging die, and performing hole flanging treatment on the mounting hole for 3-5 s/time, wherein 1 piece is formed each time;

step six, rib punching: and D, placing the support subjected to hole flanging treatment obtained in the step five into a punching machine with a rib punching die, and punching the bent position of the support subjected to hole flanging by the rib punching die so as to enable the bent part to form a through hole for 4-6 s/time. 1 piece at a time.

Preferably, when the blanking and punching are performed in the first step, grooves are punched at two ends of the folded edge position on the substrate.

Preferably, the processing steps of the bracket are added with a trimming process, namely, the trimming process is added at each step, and burrs generated after the bracket is punched are removed.

Preferably, a press machine of 80t is adopted in the step one, a press machine of 63t is adopted in the steps two, four and five, and a press machine of 45t is adopted in the step six.

Preferably, stretching oil is coated on the bending part in the third step, the bent part needs to be cooled in an insulation can until the temperature reaches room temperature, and the product is cracked and the material stress is released due to the fact that air is placed for rapid cooling.

Has the advantages that: the rear side bar support is made of aluminum alloy materials, the support is machined in a stamping mode, the application of plates is reduced, the anti-seismic effect of the support is improved, the weight of the support is reduced, the enterprise cost is reduced, the mechanical strength of the support is improved by arranging the edge folding and rib pressing on the support, and the product is prevented from being deformed and bent due to uneven wall thickness; through carrying out the hole flanging to the mounting hole, make the mounting hole edge form vertical limit, antidetonation effect and fastness when improving the support mounting need scribble tensile oil at the position of bending in step three, need advance the insulation can cooling after bending, until reaching the room temperature, place the quick cooling of air and lead to the product fracture, material stress release improves the life of support.

Drawings

FIG. 1 is a structural view of the rear bracket of the present invention;

FIG. 2 is a schematic diagram of the substrate obtained in step 1 of the present invention;

1. a right trapezoid; 2. folding the edges of the rectangle; 3. reinforcing and folding edges; 4. mounting holes; 5. a quadrilateral hole; 6. opening the gap; 7. a through hole; 8. a U-shaped hole.

Detailed Description

As shown in fig. 1-2, a rear side bar support is manufactured by blanking, punching, folding, bending, punching, hole flanging and rib punching, wherein the rear side bar support is L-shaped, the rear side bar support is composed of a right trapezoid 1 and a rectangular folded edge 2, the right trapezoid 1 and the rectangular folded edge 2 are integrally formed, a reinforcing folded edge 3 is arranged on the right trapezoid 1 and the rectangular folded edge 2, a U-shaped hole 8 is arranged at the shortest end of the right trapezoid 1, a quadrilateral hole 5 is arranged in the center of the right trapezoid 1, the trapezoidal hole is provided with the reinforcing folded edge 3, a mounting hole 4 is arranged on the rectangular folded edge 2, a through hole 7 is arranged at the bending position in the rectangular folded edge 2, and a notch 6 is arranged on the rectangular folded edge 2; the process comprises the following steps:

step one, blanking and punching: arranging a sample punching die, mounting the sample-arranged sample punching die on a punching machine, placing a metal plate in the sample punching die for punching to obtain a plurality of base plates, wherein the base plates are pentagons, one group of opposite angles in the pentagons are right angles, one corner of each pentagon is provided with a notch 6, each pentagon is divided into a right trapezoid 1 and a rectangle with the notch 6, the notch 6 is positioned on one corner of the rectangle, a mounting hole 4 is punched on the rectangle in the base plate, and a quadrilateral hole 5 is punched at the center of the right trapezoid 1 in the base plate for 3.3-3.4 s/time, 1 piece at each time;

step two, folding the edges: putting the substrate on a punching machine with a flanging and beading die, and punching to obtain a beading plate, wherein the beading plate is formed by punching flanging and beading on two sides of the substrate, and flanging is formed at the edge of a quadrilateral hole 5 in the center of the substrate for 4 s/time, and 1 piece is formed each time;

step three, bending: placing the rib pressing plate into a corresponding bending machine, bending to form a support, and enabling the position of the rectangular folded edge 2 to be folded to form an included angle of 90 degrees for 4 s/time, wherein 1 piece is formed each time;

step four, punching: putting the bent bracket into a punching machine with a punching die for punching, putting the right-angle trapezoid 1 part into the punching die, and punching the end part of the bracket into a U-shaped hole 8 for 4 s/time, 1 piece at a time;

step five, hole flanging: placing the support obtained in the fourth step into a punching machine with a hole flanging die for punching, placing the rectangular part with the notch 6 into the hole flanging die, and performing hole flanging treatment on the mounting hole 4 for 4 s/time, wherein 1 piece is formed each time;

step six, rib punching: and D, placing the support subjected to hole flanging treatment obtained in the step five into a punching machine with a rib punching die, and punching the bent position of the support subjected to hole flanging by the rib punching die to enable the bent part to form a through hole 74 s/time. 1 piece at a time.

In this example, when the blanking and punching are performed in the first step, grooves are punched at two ends of the folded edge position on the substrate.

In the example, the processing steps of the bracket are added with a trimming process, namely, the trimming process is added in each step, and burrs generated after the bracket is punched are removed.

In this example, a press machine of 80t is adopted in the first step, a press machine of 63t is adopted in the second step, the fourth step and the fifth step, and a press machine of 45t is adopted in the sixth step.

In this example, the bending part in the third step needs to be coated with stretching oil, and after bending, the bent part needs to be cooled in an insulation can until the temperature reaches room temperature, and the product is cracked and the material stress is released due to rapid cooling of air.

In this example, the rear side bar support is made of an aluminum alloy material.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.