阅读说明：本技术 三臂工件生产工艺及使用此工艺生产的工件 (Three-arm workpiece production process and workpiece produced by using same ) 是由 张俊俊 林象 王振洲 王欢 李瑞恭 于 2020-05-13 设计创作，主要内容包括：本发明涉及一种三臂工件生产工艺及使用此工艺生产的工件,其包括以下步骤：S1、选取原材料,找到体积形状均能够满足设计要求的原材料块；S2、加热,使用加热装置对原材料快进行给定温度范围下的稳定加热；S3、粗成型,使用压力机等成型装置对加热后的原材料进行纵向上的成型操作,制成粗胚；S4、切边,使用压力机等成型装置对粗胚周围多余材料进行切边操作,切出带有三臂形状的二段胚；S5、冲孔,对二段胚指定位置进行冲孔操作；S6、精压,使用压力机等对冲孔后的二段胚在横向上进行成型操作,切除多余原材料,得到精胚；S7、冷却,使用风冷方式对精胚进行冷却,直至精胚冷却至室温。本发明具有在冲孔后提高工件冲孔位置尺寸稳定性的效果。(The invention relates to a three-arm workpiece production process and a workpiece produced by using the process, which comprises the following steps: s1, selecting raw materials, and finding out raw material blocks with volume and shape meeting design requirements; s2, heating, namely, rapidly heating the raw material by using a heating device under a given temperature range in a stable manner; s3, coarse molding, namely, using a molding device such as a press machine to perform longitudinal molding operation on the heated raw material to prepare a coarse blank; s4, trimming, namely trimming redundant materials around the rough blank by using a forming device such as a press machine and the like, and cutting out a two-section blank with a three-arm shape; s5, punching, namely, punching the designated position of the two-section blank; s6, fine pressing, namely performing transverse forming operation on the two-section punched blank by using a press machine and the like, and cutting off redundant raw materials to obtain a fine blank; and S7, cooling the fine blank by using an air cooling mode until the fine blank is cooled to the room temperature. The invention has the effect of improving the dimensional stability of the workpiece punching position after punching.)

1. A three-arm workpiece production process is characterized by comprising the following steps:

s1, selecting raw materials, and finding out raw material blocks with volume and shape meeting design requirements;

s2, heating, namely, rapidly heating the raw material by using a heating device under a given temperature range in a stable manner;

s3, coarse molding, namely, using a molding device such as a press machine to perform longitudinal molding operation on the heated raw material to prepare a coarse blank;

s4, trimming, namely trimming redundant materials around the rough blank by using a forming device such as a press machine and the like, and cutting out a two-section blank with a three-arm shape;

s5, punching, namely, punching the designated position of the two-section blank;

s6, fine pressing, namely performing transverse forming operation on the two-section punched blank by using a press machine and the like, and cutting off redundant raw materials to obtain a fine blank;

s7, cooling, namely cooling the fine blank in an air cooling mode until the fine blank is cooled to the room temperature;

s8, cleaning, namely performing shot blasting treatment on the cooled fine blank by using a shot blasting machine;

and S9, flaw detection, and screening the fine blank without the crack by using a flaw detector.

2. The three-arm workpiece production process according to claim 1, wherein the step S1 is specifically:

selecting raw materials with the size meeting the design requirement by using a vernier caliper and other gauge tools;

the elemental composition of the raw material is measured by using a measuring instrument such as a spectrometer or an in-line microscope, and a raw material having few nonmetallic inclusions and no cracks is selected.

3. The three-arm workpiece production process according to claim 1, wherein the step S2 is specifically:

heating the raw material to 450-500 ℃ by using an intermediate frequency heating furnace, detecting the temperature trend by using an infrared thermometer, recording the temperature trend data as heating temperature trend data and forming a heating temperature trend table.

4. The three-arm workpiece production process according to claim 1, wherein the step S3 further comprises:

s3.1, upsetting, and cutting off the redundant part of the raw material block according to the designed maximum diameter;

s3.2, performing, namely cutting off redundant parts of the raw material block according to the designed maximum length;

and S3.3, forming, namely cutting off redundant parts of the raw material block at positions corresponding to the positions needing punching according to design.

5. The three-arm workpiece production process according to claim 3, wherein the step S7 is specifically as follows:

when the fine blank is cooled by using the fan, the frequency and the cooling time of the fan are recorded, cooling trend data are generated, and a cooling data table is recorded and formed.

6. The process for producing a three-armed workpiece according to claim 5, further comprising the steps of:

s10, screening the yield, calculating the yields of different batches, and recording and generating a yield statistical table;

s11, comparing the yield statistical table with the cooling data table, determining whether the yield trend is associated with the cooling data trend, if the association occurs, selecting the cooling data trend data corresponding to the batch with the highest yield, recording the cooling data trend data as optimal data, and cooling the fine blank by using the optimal data in the subsequent S7 process;

and S11, comparing the yield statistical table with the heating temperature trend table, determining whether the yield trend is associated with the heating temperature trend, if the association occurs, selecting the heating temperature trend data corresponding to the three batches with the highest yield, fusing the three heating temperature trend data by using a mathematical operation method to obtain optimized trend data, and applying the optimized trend data to the S3 step of subsequent production.

7. The three-arm workpiece production process according to claim 1, wherein the step S9 further comprises:

s9.1, marking the position where the crack appears on each workpiece where the crack appears;

s9.2, carrying out statistics according to the crack positions to obtain a crack position statistical table, and selecting three positions with the largest number of cracks to be recorded as sensitive positions.

8. A workpiece produced using the three-arm workpiece production process of claim 1, wherein: including supporting part (2) of tube-shape portion (1) and fixed connection in tube-shape portion (1) one end, the axis setting of supporting part (2) place plane perpendicular to tube-shape portion (1), three support arm (3) of fixedly connected with on supporting part (2) lateral wall, three support arm (3) encircle tube-shape portion (1) and set up, equal fixedly connected with supporting shoe (31) on the face of tube-shape portion (1) is kept away from in three support arm (3), supporting shoe (31) all set up in the one end that tube-shape portion (1) were kept away from in support arm (3), through-hole (21) have been seted up at supporting part (2) middle part, the diameter of through-hole (21) is less than the internal diameter of.

9. The workpiece of claim 8, wherein: an extension cylinder (22) with the inner diameter equal to the diameter of the through hole (21) is fixedly connected to the position, corresponding to the through hole (21), of one surface of the support part (2) far away from the cylindrical part (1).

10. The workpiece of claim 8, wherein: the surface of the supporting arm (3) is provided with abdicating grooves (32).

Technical Field

The invention relates to the technical field of workpiece production, in particular to a three-arm workpiece production process and a workpiece produced by using the process.

Background

At present, with the flourishing of various projects, the types of workpieces (forgings, castings and the like) required in various projects are more complicated, meanwhile, the demand of special-shaped workpieces or customized workpieces is increased rapidly because more demands are paid attention to the design sense at the present stage, and correspondingly, various workpiece forging processes for meeting the demands are also generated.

In the prior art, reference may be made to a chinese patent invention with an authorization publication number of CN109482798B, which discloses a method for actively controlling metal flow forming of a long-supporting-arm thin-web cylindrical forging drum-shaped connected skin bin, and relates to a method for forming a long-supporting-arm thin-web cylindrical forging, comprising: firstly, calculating an original blank required by a forge piece; secondly, upsetting and blank making; thirdly, upsetting and drawing a blank; fourthly, finish forging; fifthly, removing the flash of the formed forged piece and cleaning the surface of the forged piece to obtain the long-support-arm thin-web cylindrical forged piece.

The above prior art solutions have the following drawbacks: the existing general process is generally to punch after forming, but in the production process of customizing workpieces or special-shaped workpieces, workpiece deformation caused by punching still can cause that final workpieces cannot be effectively matched, the condition of reducing the production yield of the workpieces is rare, and particularly for small-sized workpieces, the punching force of a punch press can cause deformation damage to the local part of the workpiece which is just subjected to forming operation during punching.

Disclosure of Invention

In view of the defects in the prior art, one of the purposes of the invention is to provide a three-arm workpiece production process capable of improving the dimensional stability of the workpiece punching position after punching.

The above object of the present invention is achieved by the following technical solutions:

a production process of a three-arm workpiece comprises the following steps:

s1, selecting raw materials, and finding out raw material blocks with volume and shape meeting design requirements;

s2, heating, namely, rapidly heating the raw material by using a heating device under a given temperature range in a stable manner;

s3, coarse molding, namely, using a molding device such as a press machine to perform longitudinal molding operation on the heated raw material to prepare a coarse blank;

s4, trimming, namely trimming redundant materials around the rough blank by using a forming device such as a press machine and the like, and cutting out a two-section blank with a three-arm shape;

s5, punching, namely, punching the designated position of the two-section blank;

s6, fine pressing, namely performing transverse forming operation on the two-section punched blank by using a press machine and the like, and cutting off redundant raw materials to obtain a fine blank;

s7, cooling, namely cooling the fine blank in an air cooling mode until the fine blank is cooled to the room temperature;

s8, cleaning, namely performing shot blasting treatment on the cooled fine blank by using a shot blasting machine;

and S9, flaw detection, and screening the fine blank without the crack by using a flaw detector.

Through adopting above-mentioned technical scheme, compared with the prior art, this technology only cuts off the unnecessary part that raw and other materials are fast in vertical before punching a hole, do not polish work piece details, after punching a hole, just cut off the detail position of work piece in S6 step, thereby ensure that the work piece has sufficient thickness when punching a hole on the one hand, the work piece weak point that the placing punched a hole led to damages, on the other hand carries out detail processing after punching a hole, after the raw and other materials deformation that leads to punching a hole has taken place, can ensure the size accuracy degree of detail part, after S6 process, use air-cooled rather than the water-cooled mode to cool off the work piece, can avoid the work piece temperature change to lead to the weak part to appear the crack too violently, improve the yields of work piece.

In a preferred example of the present invention, the step of S1 is specifically as follows:

selecting raw materials with the size meeting the design requirement by using a vernier caliper and other gauge tools;

the elemental composition of the raw material is measured by using a measuring instrument such as a spectrometer or an in-line microscope, and a raw material having few nonmetallic inclusions and no cracks is selected.

By adopting the technical scheme, when the raw material is selected, the data such as element components, non-metallic inclusions, cracks and the like of the raw material are detected, the selected raw material block can be ensured to be proper in size, the probability of cracks in the heating process and the like can be effectively reduced, and when the material is selected, the fact that no crack exists in the raw material can be convenient for an operator to confirm whether the crack of the workpiece finally having the crack is related to the production process or not, so that the operator can conveniently adjust and improve the process.

In a preferred example of the present invention, the step of S2 is specifically as follows:

heating the raw material to 450-500 ℃ by using an intermediate frequency heating furnace, detecting the temperature trend by using an infrared thermometer, recording the temperature trend data as heating temperature trend data and forming a heating temperature trend table.

Through adopting above-mentioned technical scheme, on heating raw and other materials to the temperature more than 450 degrees, can effectively soften raw and other materials, conveniently punch a hole and operation such as shaping to raw and other materials, record temperature trend data can compare to the temperature data and the yields of different batches of raw and other materials to select the highest heating methods of yields, further improve the yields in the follow-up production.

The present invention in a preferred example may be further configured that the step of S3 further includes:

s3.1, upsetting, and cutting off the redundant part of the raw material block according to the designed maximum diameter;

s3.2, performing, namely cutting off redundant parts of the raw material block according to the designed maximum length;

and S3.3, forming, namely cutting off redundant parts of the raw material block at positions corresponding to the positions needing punching according to design.

By adopting the technical scheme, the raw material is processed from thick to thin in the step S3, the raw material block is firstly cut to be basically consistent with the design in diameter and length, the redundant part at the cutting and punching position can improve the punching stability, and the probability of unsmooth punching caused by overlarge thickness of the raw material is reduced.

In a preferred example of the present invention, the step of S7 is specifically as follows:

when the fine blank is cooled by using the fan, the frequency and the cooling time of the fan are recorded, cooling trend data are generated, and a cooling data table is recorded and formed.

By adopting the technical scheme, the frequency and the cooling time of the fan are recorded, so that the operation personnel can conveniently transversely compare the cooling trend data of different production batches, the fan frequency and the cooling time which can ensure the yield can be selected, and the yield in the subsequent production is improved.

The present invention in a preferred example may be further configured to further include the steps of:

s10, screening the yield, calculating the yields of different batches, and recording and generating a yield statistical table;

s11, comparing the yield statistical table with the cooling data table, determining whether the yield trend is associated with the cooling data trend, if the association occurs, selecting the cooling data trend data corresponding to the batch with the highest yield, recording the cooling data trend data as optimal data, and cooling the fine blank by using the optimal data in the subsequent S7 process;

and S11, comparing the yield statistical table with the heating temperature trend table, determining whether the yield trend is associated with the heating temperature trend, if the association occurs, selecting the heating temperature trend data corresponding to the three batches with the highest yield, fusing the three heating temperature trend data by using a mathematical operation method to obtain optimized trend data, and applying the optimized trend data to the S3 step of subsequent production.

By adopting the technical scheme, after production is finished, the yield statistical table is compared with the cooling data table and the heating temperature trend table, operators can be assisted to confirm whether the yield is related to the heating step or the cooling step, and through analyzing the relevance, the heating trend data and the cooling data which are most beneficial to improving the yield are selected for subsequent processing production, so that the yield of subsequent production can be further improved.

The present invention in a preferred example may be further configured that the step of S9 further includes:

s9.1, marking the position where the crack appears on each workpiece where the crack appears;

s9.2, carrying out statistics according to the crack positions to obtain a crack position statistical table, and selecting three positions with the largest number of cracks to be recorded as sensitive positions.

By adopting the technical scheme, in the subsequent production, an operator can protect or thicken the sensitive position in a targeted manner, so that the probability of cracks at the sensitive position is reduced.

Aiming at the defects in the prior art, the invention also aims to provide a workpiece with high stability of the structure of the open pore position.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an use work piece of three-arm work piece production technology production, including tube-shape portion and the supporting part of fixed connection in tube-shape portion one end, the axis setting of supporting part place plane perpendicular to tube-shape portion, three support arms of fixedly connected with on the supporting part lateral wall, three support arms encircle the tube-shape portion and set up, equal fixedly connected with supporting shoe on the face that tube-shape portion was kept away from to three support arms, the supporting shoe all sets up in the one end that tube-shape portion was kept away from to the support arm, the through-hole has been seted up at the supporting part middle.

Through adopting above-mentioned technical scheme, the cooperation of supporting wall and supporting shoe can realize the spacing or the joint effect of work piece, and the setting of through-hole and tube-shape portion can allow to be connected parts such as work piece and other pipelines.

The present invention in a preferred example may be further configured to: an extension cylinder with the inner diameter equal to the diameter of the through hole is fixedly connected to the position, corresponding to the through hole, of one surface, far away from the cylindrical part, of the supporting part.

Through adopting above-mentioned technical scheme, the setting of extending a section of thick bamboo can effectively promote the structural stability of through-hole position department, reduces because the thin probability that leads to damaging the condition emergence of damage in the use of through-hole position department supporting part.

The present invention in a preferred example may be further configured to: the surface of the supporting arm is provided with a yielding groove.

Through adopting above-mentioned technical scheme, the setting of recess can effectively improve the spacing stability of work piece on the one hand, and through the cooperation of a plurality of recesses and supporting shoe, can effectively promote the reference point when carrying out spacing or joint to the work piece to improve spacing stability, on the other hand can effectively reduce the quality of work piece, resources are saved and make things convenient for the use of work piece.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the probability of deformation or crack of the workpiece caused by punching in the production process can be effectively reduced;

2. the heating mode and the cooling mode which are most beneficial to improving the yield can be continuously screened through data comparison of the previous batch and the next batch, so that the yield is gradually improved;

3. the weight of the workpiece can be effectively reduced on the basis of keeping the strength of the workpiece, and the resource consumption is reduced.

Drawings

FIG. 1 is an overall schematic view of embodiment 2;

fig. 2 is a cross-sectional view of a protruding via structure of example 2.

In the figure, 1, a cylindrical portion; 2. a support portion; 21. a through hole; 22. an extension cylinder; 3. a support arm; 31. a support block; 32. a yielding groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.