阅读说明：本技术 一种工程机械用支架加工工艺 (Machining process of support for engineering machinery ) 是由 段士博 岳琪 郑象坤 李莉 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种工程机械用支架加工工艺,属于工程机械配件加工技术领域,所述的工程机械用支架加工工艺具体包括以下步骤：1)准备好待加工工件和所需设备,2)粗车加工,3)精车加工,4)配芯轴、粗车加工和精车加工,5)钻孔加工；本发明通过以上步骤,解决了现有技术中生产效率低,过程控制不稳定,多次装夹、定位造成了很多加工误差,加工精度低,工序繁琐,需要的操作工多,工人的劳动强度大,生产成本高,产品质量不稳定的技术问题,具有广阔的应用前景。(The invention discloses a processing technology of a support for engineering machinery, belonging to the technical field of processing of engineering machinery accessories, and the processing technology of the support for the engineering machinery specifically comprises the following steps: 1) preparing a workpiece to be processed and required equipment, 2) rough turning, 3) finish turning, 4) matching a mandrel, rough turning and finish turning, and 5) drilling; through the steps, the technical problems of low production efficiency, unstable process control, many machining errors caused by multiple clamping and positioning, low machining precision, complex procedures, more required operators, high labor intensity of workers, high production cost and unstable product quality in the prior art are solved, and the method has a wide application prospect.)

1. A machining process of a support for engineering machinery is characterized by comprising the following steps:

1) preparing a workpiece to be processed and required equipment for standby;

2) rough turning: fixing the workpiece to be processed prepared in the step 1), and performing rough turning to obtain a sequence of workpieces for later use;

3) finish turning: fixing the first-order workpiece obtained in the step 2), and performing finish turning to obtain a second-order workpiece for later use;

4) matching a mandrel, rough turning and finish turning: fixing the second-order workpiece obtained in the step 3), arranging a mandrel (7) on the second-order workpiece, and performing rough turning and fine turning on the second-order workpiece to obtain a third-order workpiece for later use;

5) drilling: and (4) fixing the three-sequence workpiece obtained in the step 4), and drilling by using a vertical machining center to obtain the finished product of the support for the engineering machinery.

2. The machining process of the support for the engineering machinery, according to claim 1, is characterized in that the workpiece to be machined in the step 1) comprises a side lug (1), a machining hole (2), an inner hole (3), an inner seam (4), a fixing part (5) and a clamping part (6), required equipment comprises a numerical control lathe, a special jaw tool, a lathe tool, a vertical machining center and a drilling tool, and the special jaw tool comprises a mandrel (7), a pressing plate (8), a disc (9), a lathe flange (10), a three-jaw chuck (11), a strip plate (12), a vertical plate (13) and a positioning bolt (14).

3. The machining process of the bracket for the engineering machinery as claimed in claim 2, wherein the step 2) of fixing the workpiece to be machined refers to that the workpiece to be machined is supported and clamped on a fixing part (5) and a clamping part (6) of the workpiece to be machined by a three-jaw chuck (11) in a special jaw tool, and the machining parts for rough turning are the upper surface and the lower surface of two side lugs (1) in the workpiece to be machined, the inner hole (3) and the inner sub-opening (4).

4. The machining process of the bracket for the engineering machinery, according to the claim 3, is characterized in that the step 3) of fixing the first-order workpiece refers to that a three-jaw chuck (11) in a special jaw tool is used for propping against and clamping a fixed part (5) and a clamping part (6) of the first-order workpiece, and the machining parts for finish turning are the upper surface and the lower surface of two side lugs (1), an inner hole (3) and an inner sub-opening (4) in the first-order workpiece.

5. The machining process of the bracket for the engineering machinery, according to claim 4, is characterized in that the step 4) of fixing the second-order workpiece and arranging the mandrel (7) on the second-order workpiece is that: one end of a mandrel (7) is fixedly assembled on a disc (9), the disc (9) is installed on a lathe flange (10), side lugs (1) of a second-order workpiece are fixed on the disc (9) by a pressing plate (8), the other end of the mandrel (7) is inserted into an inner hole (3) and is flush with the end face of an inner sub-opening (4), and the diameter of the inner hole (3) is 58 mm; the processing parts for carrying out rough turning processing and finish turning processing on the second-order workpiece are the excircle, the end face and the groove of the second-order workpiece.

6. The machining process of the bracket for the engineering machinery as claimed in claim 5, wherein the step 5) of fixing the three-step workpiece is: assembling a long strip plate (12) on a three-jaw chuck (11), respectively welding a vertical plate (13) on two sides of the long strip plate (12), drilling holes and tapping at the positions of three-sequence workpiece side lugs (1) by the vertical plates (13) to assemble corresponding positioning bolts (14), wherein the length of the positioning bolts (14) is adjustable, and the three-jaw chuck (11) is fixedly pressed on a vertical machining center workbench; the processing part for drilling by using the vertical processing center is a side lug (1) of the three-sequence workpiece, and the hole after drilling is a processing hole (2).

Technical Field

The invention relates to the technical field of engineering machinery accessory processing, in particular to a processing technology of a support for engineering machinery.

Background

The bracket is a connecting piece on engineering machinery, the demand in the engineering machinery industry is large, the shape is irregular, and various problems exist in common equipment and old technology: the production efficiency is low, the process control is unstable, a lot of processing errors are caused by multiple times of clamping and positioning, the processing precision is low, the procedures are complicated, a lot of operators are needed, the labor intensity of workers is high, the production cost is high, and the product quality is unstable.

Therefore, the invention provides a machining process of a support for engineering machinery.

Disclosure of Invention

The invention aims to provide a processing technology of a support for engineering machinery, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a processing technology of a support for engineering machinery specifically comprises the following steps:

1) preparing a workpiece to be processed and required equipment for standby;

2) rough turning: fixing the workpiece to be processed prepared in the step 1), and performing rough turning to obtain a sequence of workpieces for later use;

3) finish turning: fixing the first-order workpiece obtained in the step 2), and performing finish turning to obtain a second-order workpiece for later use;

4) matching a mandrel, rough turning and finish turning: fixing the second-order workpiece obtained in the step 3), arranging a mandrel on the second-order workpiece, and performing rough turning and finish turning on the second-order workpiece to obtain a third-order workpiece for later use;

5) drilling: and (4) fixing the three-sequence workpiece obtained in the step 4), and drilling by using a vertical machining center to obtain the finished product of the support for the engineering machinery.

As a further scheme of the invention: the workpiece to be machined in the step 1) comprises side lugs, machining holes, inner sub-openings, fixing parts and clamping parts, the required equipment comprises a numerical control lathe, a special clamping jaw tool, a lathe tool, a vertical machining center and a drilling tool, and the special clamping jaw tool comprises a mandrel, a pressing plate, a disc, a lathe flange, a three-jaw chuck, a strip plate, a vertical plate and a positioning bolt.

As a further scheme of the invention: the step 2) of fixing the workpiece to be machined refers to that a three-jaw chuck in the special jaw tool is used for propping against and clamping the fixed part and the clamping part of the workpiece to be machined, and the machining parts for rough turning are the upper surface and the lower surface of two side lugs in the workpiece to be machined, inner holes and inner sub-openings.

As a further scheme of the invention: the step 3) of fixing the first-order workpiece refers to that a three-jaw chuck in a special jaw tool is used for propping against and clamping the fixed part and the clamping part of the first-order workpiece, and the processing parts for finish turning are the upper surface and the lower surface of two side lugs in the first-order workpiece, an inner hole and an inner sub-opening.

As a further scheme of the invention: the step 4) of fixing the second-order workpiece and arranging the mandrel on the second-order workpiece means that: one end of a mandrel is fixedly assembled on a disc, the disc is installed on a lathe flange, side lugs of a second-order workpiece are fixed on the disc by a pressing plate, the other end of the mandrel penetrates through an inner hole and is flush with the end face of an inner sub opening, and the diameter of the inner hole is 58 mm; the processing parts for carrying out rough turning processing and finish turning processing on the second-order workpiece are the excircle, the end face and the groove of the second-order workpiece.

As a further scheme of the invention: the step 5) of fixing the three-sequence workpiece means that: assembling a long strip plate on a three-jaw chuck, respectively welding a vertical plate on two sides of the long strip plate, drilling and tapping on the vertical plate at the position of a side lug of a three-sequence workpiece to assemble a corresponding positioning bolt, wherein the length of the positioning bolt is adjustable, and the three-jaw chuck is fixedly pressed on a vertical machining center workbench; the processing part for drilling by using the vertical processing center is a side lug of the three-sequence workpiece, and the hole after drilling is a processing hole.

Compared with the prior art, the invention has the beneficial effects that:

the invention relates to a processing technology of a support for engineering machinery, which specifically comprises the following steps: 1) preparing a workpiece to be processed and required equipment, 2) rough turning, 3) finish turning, 4) matching a mandrel, rough turning and finish turning, and 5) drilling; through the steps, the technical problems of low production efficiency, unstable process control, many machining errors caused by multiple clamping and positioning, low machining precision, complex procedures, more required operators, high labor intensity of workers, high production cost and unstable product quality in the prior art are solved; the invention improves the processing precision, reduces the labor intensity, reduces the production cost, improves the production efficiency and has wide application prospect.

Drawings

Fig. 1 is a schematic structural view of a support for construction machinery according to the present invention.

FIG. 2 is a schematic view of the processing of step 2) and step 3) in the present invention.

FIG. 3 is a schematic view of the process of step 4) of the present invention.

FIG. 4 is a schematic view of the process of step 5) of the present invention.

In the figure: 1-side lug, 2-processing hole, 3-inner hole, 4-inner seam, 5-fixing part, 6-clamping part, 7-mandrel, 8-pressing plate, 9-disc, 10-lathe flange, 11-three-jaw chuck, 12-strip plate, 13-vertical plate and 14-positioning bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.