CN110961544A - Automatic continuous stamping device and method for railway signal relay parts - Google Patents
Automatic continuous stamping device and method for railway signal relay parts Download PDFInfo
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- CN110961544A CN110961544A CN201811136351.XA CN201811136351A CN110961544A CN 110961544 A CN110961544 A CN 110961544A CN 201811136351 A CN201811136351 A CN 201811136351A CN 110961544 A CN110961544 A CN 110961544A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 239000000047 product Substances 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 41
- 238000010924 continuous production Methods 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a railway signal relay part automatic continuous stamping device and a method, wherein the device is automatically and continuously stamped and processed by multiple machines and multiple stations, no manual intervention is involved in the whole processing process, the parts and semi-finished products are formed at one time, the purpose of feeding at one end and discharging finished products at the other end is completely achieved, the consistency of the parts is better, the structural size of the parts is ensured, the reliability and the stability of the parts are improved, the problems of single stamping and processing of the original multiple stations, multiple processes and single machine are solved, the production efficiency can reach more than 3 times of the original production efficiency, the production cycle is greatly shortened, and the capacity of producing 3000 finished products can be achieved. The process that the workpiece needs to be placed into the shaping die cavity by using a sucker in the original shaping process is completely eliminated, and the personal safety is guaranteed.
Description
Technical Field
The invention relates to a process technology for automatically and continuously stamping parts (armatures, yokes and contact frames) of railway signal relays, in particular to an automatic and continuously stamping device and method for the parts of the railway signal relays.
Background
At present, various types of railway signal relays are widely applied to railway train systems, three main parts of the railway signal relays, namely an armature, a yoke and a contact frame, are machined by multi-station, multi-process and single-machine single-time stamping, the process technology has the problems of long production period, low production efficiency, high labor intensity, low automation degree and the like, and particularly, when the production period is relatively tight, 1000 parts are machined for one week, which almost becomes a bottleneck influencing the production of relay products. In the part shaping process, a friction press is adopted for shaping, a workpiece needs to be placed into a shaping die cavity by using a sucker in the shaping process, and potential safety hazards exist. In addition, the structural size consistency of parts processed by the process is poor, certain difficulty is added to subsequent whole machine assembling and debugging work, and the phenomenon of part missing exists, so that the rejection rate of the parts is high.
With the rapid development of railways and urban rails, the demand for railway signal relays is obviously increased, the quality of products also has higher requirements, and the existing process technical method cannot meet the requirements.
Disclosure of Invention
The invention aims to provide an automatic continuous stamping device and method for a railway signal relay part, which have the advantages of good manufacturability, high reliability and high automation degree, so that the defects and the defects existing in the existing process method are overcome, the production efficiency and the quality of the relay part are ensured, and the safe trip of a rail train is ensured.
The technical scheme of the invention is as follows: relate to an automatic continuous stamping device of railway signal relay part, characterized by: at least, 6 presses are included, autoloading material accumulation frame, the manipulator host computer, the roll-over stand constitutes continuous production line, autoloading material accumulation frame distributes in continuous production line initial position, the manipulator host computer distributes in continuous production line terminal position, 6 presses distribute between continuous production line autoloading material accumulation frame and manipulator host computer, 6 press machine intervals between be allocated the roll-over stand, there is the manipulator before 6 presses, the manipulator passes through the connecting rod, the cable is connected with the manipulator host computer, realize armature, the yoke, contact frame's automation snatchs continuous stamping process production through the manipulator host computer.
And a turnover frame is arranged between the third punch and the fourth punch and is used for enabling the workpiece to turn over by 90 degrees, and the workpiece is automatically reset to wait for the next workpiece after being grabbed by the manipulator.
During production, the prepared blank is loaded into an automatic feeding and stacking frame, then a press machine is started, a manipulator in front of the press machine grabs the blank and the semi-finished product according to the stamping beat of the press machine and sends the blank and the semi-finished product to the next station, and finally the finished product of the relay part is obtained; the process comprises the following steps: starting up → preparing material → mechanical arm picks up and conveys workpiece → press stamping → mechanical arm picks and conveys workpiece → press stamping → completing the processing of parts through multiple cycles.
The relay parts include contact frame, armature and yoke.
The processing steps of the contact frame are as follows: punching a phi 18 hole in the prepared material, and punching 2 multiplied by phi 6 multiplied by 5.2; pre-punching small holes with the diameter of 2 multiplied by phi 1.5, pressing burrs, and punching small holes with the diameter of 2 multiplied by phi 1.5; changing 45 degrees and 90 degrees; turning the workpiece for 90 degrees; pointing and chamfering, and punching 2 multiplied by phi 4.6; chamfering and shaping; tapping M5, tapping M5.
The processing steps of the armature are as follows: preparing materials, punching 2 multiplied by phi 3.5, pre-punching 1.5 multiplied by 1.5 grooves, and finely punching 1.5 multiplied by 1.5 grooves; punching a 3 Xphi 5.5 nest and a 3 Xphi 3.5 hole; chamfering 2 x phi 3.5 (lower), chamfering 2 x phi 3.5 (upper) and cutting 2.5 x 30; finely cutting a groove with the size of 4 multiplied by 32 and finely trimming; fine trimming, deformation 45 degrees; deforming 94 degrees, shaping and pitting.
The processing steps of the yoke iron are as follows: preparing materials, cutting corners, finely cutting and pressing burrs; the polar surface is changed into 45 degrees and 90 degrees; the bottom surface is changed into 45 degrees and 90 degrees; turning the workpiece for 90 degrees; punching a boss with the diameter of phi 18, and pre-punching the boss with the diameter of 2 multiplied by phi 4.6; punching 2 multiplied by phi 4.6 and shaping; tapping M5, tapping M5.
The 6 press machines, the automatic feeding and stacking frame, the manipulator host and the roll-over stand are fixed on a base which is 12000 mm-15000 mm long, and is optimally 13461mm long.
The interval between the 6 press machines is 1500 mm-1900 mm, and the best is 1762 mm.
The 6 presses are 160 ton presses.
The invention has the advantages that: the invention is processed by multi-machine multi-station automatic continuous punching, in the whole processing process, no manual intervention exists, the parts and semi-finished products are formed at one time, the purposes of feeding at one end and discharging finished products at the other end are completely achieved, the consistency of the parts is better, the structural size of the parts is ensured, the reliability and the stability of the parts are improved, the problems of single punching processing of the original multi-station, multi-process and single machine are solved, the production efficiency can reach more than 3 times of the original production efficiency, the production period is greatly shortened, and the capacity of producing 3000 finished products can be realized. The process that the workpiece needs to be placed into the shaping die cavity by using a sucker in the original shaping process is completely eliminated, and the personal safety is guaranteed.
The invention is further explained below with reference to the drawings of the embodiments.
Drawings
FIG. 1 is a front view of an automated continuous stamping line according to an embodiment of the present invention.
Fig. 2 is a top view of an automated continuous stamping line according to an embodiment of the present invention.
In the figure: 1. automatically feeding a material accumulation frame; 2. a press machine; 3. a manipulator; 4. a roll-over stand; 5. and a manipulator host.
Detailed Description
Example 1
As shown in fig. 1 and 2, the invention provides an automatic continuous stamping device for railway signal relay parts, which is characterized in that: at least, including 6 presses 2, autoloading ponding frame 1, manipulator 3, manipulator host computer 5, roll-over stand 4 constitutes continuous production line, autoloading frame 1 distributes in the initial position of continuous production line, manipulator host computer 5 distributes in continuous production line terminal position, 6 presses 2 distribute between continuous production line autoloading ponding frame 1 and manipulator host computer 5, it has roll-over stand 4 to distribute between 2 intervals of 6 presses, there is manipulator 3 before 2 presses of 6, manipulator 3 is connected with manipulator host computer 5 electricity through the cable, realize armature through manipulator host computer 5, the yoke, the automation of contact frame snatchs continuous stamping process production.
6 press machines 2, an automatic feeding and stacking frame 1, a manipulator 3, a manipulator host 5 and a roll-over stand 4 are fixed on a base 13461mm long, and the interval between the 6 press machines 2 is 1762 mm; the 6 presses 2 are 160 ton presses.
The invention relates to an automatic continuous stamping method for railway signal relay parts, which comprises the following steps:
and (3) preparing materials, namely punching the blank on a progressive die by using the cold-rolled Q195 carbon structural flat steel to prepare materials for an automatic continuous punching production line of relay parts (contact frames).
And (3) cleaning, namely cleaning blank pieces of the blanked relay parts (contact frames) to remove foreign matters such as oil stains, scrap iron and the like.
And placing materials, namely placing cleaned relay part (contact frame) blanks in a certain sequence, then placing the blanks in a material groove of an automatic feeding and accumulating frame 1, manually switching the material groove, and filling up at least three material grooves with 6 material grooves.
Starting up the machine, and processing the content of each procedure according to the procedure step-by-step requirement of the relay parts (contact frames);
the process steps of the relay parts (contact frames) are as follows:
punching a hole with phi 18, and punching holes with 2 multiplied by phi 6 multiplied by 5.2;
pre-punching small holes with the diameter of 2 multiplied by phi 1.5, pressing burrs, and punching small holes with the diameter of 2 multiplied by phi 1.5;
changing 45 degrees and 90 degrees;
turning the workpiece for 90 degrees;
pointing and chamfering, and punching 2 multiplied by phi 4.6;
chamfering and shaping;
tapping M5, tapping M5;
the process comprises the following steps: starting up → manual material preparation → mechanical arm picks up and conveys the work piece → press machine 2 punching → completing the processing of the part through multiple cycles, the work piece needs to be turned over once in the middle.
Example 2
As shown in fig. 1 and 2, the invention relates to an automatic continuous stamping device for railway signal relay parts, which is characterized in that: at least, including 6 presses 2, autoloading ponding frame 1, manipulator 3, manipulator host computer 5, roll-over stand 4 constitutes continuous production line, autoloading ponding frame 1 distributes in continuous production line initial position, manipulator host computer 5 distributes in continuous production line terminal position, 6 presses 2 distributions are between automatic ponding frame 1 of continuous production line and manipulator host computer 5, it has roll-over stand 4 to distribute between 2 intervals of 6 presses, there is manipulator 3 before 2 presses of 6, manipulator 3 is connected with manipulator host computer 5 electricity through the cable, realize armature through manipulator host computer 5, the yoke, the automation of contact frame snatchs continuous stamping process production.
6 press machines 2, an automatic feeding and stacking frame 1, a manipulator 3, a manipulator host 5 and a roll-over stand 4 are fixed on a base 13461mm long, and the interval between the 6 press machines 2 is 1762 mm; the 6 presses 2 are 160 ton presses.
The invention provides an automatic continuous stamping method for railway signal relay parts, which at least comprises the following steps:
and (3) preparing materials, namely punching the cold-rolled electromagnetic pure iron straight strip material into a blank on a progressive die to prepare materials for an automatic continuous punching production line of the relay part (armature).
And (3) cleaning, namely cleaning blank pieces of the blanked relay parts (armatures), and removing foreign matters such as oil stains, scrap iron and the like.
And placing materials, namely placing cleaned relay part (armature) blanks in a certain sequence, then placing the blanks in a material groove of an automatic feeding and accumulating frame 1, manually switching the material groove, and filling up at least three material grooves with 6 material grooves.
Starting up the machine, and processing the content of each procedure according to the procedure step-by-step requirement of the relay parts (contact frames);
the process steps of the relay part (armature) are as follows:
punching a 3 Xphi 5.5 nest and a 3 Xphi 3.5 hole;
chamfering 2 x phi 3.5 (lower), chamfering 2 x phi 3.5 (upper) and cutting 2.5 x 30;
finely cutting a groove with the size of 4 multiplied by 32 and finely trimming;
fine trimming, deformation 45 degrees;
deforming 94 degrees, shaping and pitting;
the process comprises the following steps: starting up → manual material preparation → mechanical arm picks up and conveys the work piece → press machine 2 punching → the processing of the part is completed through multiple cycles, and the work piece does not need to be turned over in the middle.
Example 3
As shown in fig. 1 and 2, the invention relates to an automatic continuous stamping device for railway signal relay parts, which is characterized in that: at least, including 6 presses 2, autoloading ponding frame 1, manipulator 3, manipulator host computer 5, roll-over stand 4 constitutes continuous production line, autoloading ponding frame 1 distributes in continuous production line initial position, manipulator host computer 5 distributes in continuous production line terminal position, 6 presses 2 distributions are between continuous production line autoloading ponding frame 1 and manipulator host computer 5, it has roll-over stand 4 to distribute between 2 intervals of 6 presses, there is manipulator 3 before 2 presses of 6, manipulator 3 is connected with manipulator host computer 5 electricity through the cable, realize armature through manipulator host computer 5, the yoke, the automation of contact frame snatchs continuous stamping process production.
6 press machines 2, an automatic feeding and stacking frame 1, a manipulator 3, a manipulator host 5 and a roll-over stand 4 are fixed on a base 13461mm long, and the interval between the 6 press machines 2 is 1762 mm; the 6 presses 2 are 160 ton presses.
The invention provides an automatic continuous stamping method for railway signal relay parts, which at least comprises the following steps:
preparing materials, namely punching a blank on a cold-rolled electromagnetic pure iron straight strip material on a progressive die to prepare materials for an automatic continuous punching production line of relay parts (yokes).
And (3) cleaning, namely cleaning blank pieces of the blanked relay parts (yokes) to remove foreign matters such as oil stains, iron chips and the like.
And (3) placing materials, namely installing the cleaned blank pieces of the relay parts (yokes) in a certain sequence, placing the blank pieces together, then placing the blank pieces into a material groove of an automatic feeding and accumulating frame 1, manually switching the material groove, and at least filling up three material grooves with 6 material grooves.
Starting up the machine, and processing the content of each procedure according to the procedure step-by-step requirement of the relay parts (contact frames); the process steps of the relay part (armature) are as follows:
cutting corners, finely cutting and pressing burrs;
the polar surface is changed into 45 degrees and 90 degrees;
the bottom surface is changed into 45 degrees and 90 degrees;
turning the workpiece for 90 degrees;
punching a boss with the diameter of phi 18, and pre-punching the boss with the diameter of 2 multiplied by phi 4.6;
punching 2 multiplied by phi 4.6 and shaping;
tapping M5, tapping M5;
according to the invention, the parts are processed by automatic continuous stamping, the structural size consistency of the parts is high, the surface collision of the parts is reduced, and the surface quality of the parts is improved, so that the secondary turnover process of a stamping part is avoided under the early condition that the performance of the relay is not influenced, the cost is reduced, and the production efficiency is improved.
Claims (10)
1. The utility model provides an automatic continuous stamping device of railway signal relay part, characterized by: at least, including 6 presses (2), autoloading ponding frame (1), manipulator (3), manipulator host computer (5), roll-over stand (4) constitute continuous production line, autoloading ponding frame (1) distributes in continuous production line initial position, manipulator host computer (5) distribute in continuous production line terminal position, 6 presses (2) distribute between continuous production line autoloading ponding frame (1) and manipulator host computer (5), roll-over stand (4) have been allocated between 6 presses (2) intervals, there is manipulator (3) before 6 presses (2), manipulator (3) are connected with manipulator host computer (5) electricity through the cable, realize armature, the yoke, the automation of contact frame snatchs continuous stamping process production through manipulator host computer (5).
2. The automatic continuous stamping device for railway signal relay parts as claimed in claim 1, wherein: and a roll-over stand (4) is arranged between the third punch and the fourth punch and is used for turning over the workpiece by 90 degrees, and the workpiece is automatically reset to wait for the next workpiece after being grabbed by the manipulator.
3. An automatic continuous stamping method for railway signal relay parts is characterized by comprising the following steps: during production, the prepared blank is loaded into the automatic feeding and stacking frame (1), then the press machine (2) is started, the manipulator (3) in front of the press machine (2) grabs the blank and the semi-finished product according to the stamping beat of the press machine (2) and sends the blank and the semi-finished product to the next station, and finally the finished product of the relay part is obtained; the process comprises the following steps:
cleaning, namely cleaning a blank of the blanked relay part to remove foreign matters such as oil stains, scrap iron and the like;
placing materials, namely installing cleaned relay part blanks in a certain sequence, placing the cleaned relay part blanks together, then placing the relay part blanks into material grooves of an automatic feeding and accumulating frame (1), manually switching the material grooves, and filling at least three material grooves with 6 material grooves;
and starting the machine, and processing the content of each procedure according to the procedure step-out requirement of the relay parts.
4. The automatic continuous stamping method for the parts of the railway signal relay as claimed in claim 3, wherein the method comprises the following steps: the relay parts include contact frame, armature and yoke.
5. The automatic continuous stamping method for the parts of the railway signal relay as claimed in claim 4, wherein the method comprises the following steps: the processing steps of the contact frame are as follows: punching a phi 18 hole in the prepared material, and punching 2 multiplied by phi 6 multiplied by 5.2; pre-punching small holes with the diameter of 2 multiplied by phi 1.5, pressing burrs, and punching small holes with the diameter of 2 multiplied by phi 1.5; changing 45 degrees and 90 degrees; turning the workpiece for 90 degrees; pointing and chamfering, and punching 2 multiplied by phi 4.6; chamfering and shaping; tapping M5, tapping M5.
6. The automatic continuous stamping method for the parts of the railway signal relay as claimed in claim 4, wherein the method comprises the following steps: the processing steps of the armature are as follows: preparing materials, punching 2 multiplied by phi 3.5, pre-punching 1.5 multiplied by 1.5 grooves, and finely punching 1.5 multiplied by 1.5 grooves; punching a 3 Xphi 5.5 nest and a 3 Xphi 3.5 hole; chamfering 2 x phi 3.5 (lower), chamfering 2 x phi 3.5 (upper) and cutting 2.5 x 30; finely cutting a groove with the size of 4 multiplied by 32 and finely trimming; fine trimming, deformation 45 degrees; deforming 94 degrees, shaping and pitting.
7. The automatic continuous stamping method for the parts of the railway signal relay as claimed in claim 1, wherein the method comprises the following steps: the processing steps of the yoke iron are as follows: preparing materials, cutting corners, finely cutting and pressing burrs; the polar surface is changed into 45 degrees and 90 degrees; the bottom surface is changed into 45 degrees and 90 degrees; turning the workpiece for 90 degrees; punching a boss with the diameter of phi 18, and pre-punching the boss with the diameter of 2 multiplied by phi 4.6; punching 2 multiplied by phi 4.6 and shaping; tapping M5, tapping M5.
8. The automatic continuous stamping device for railway signal relay parts as claimed in claim 1, wherein: the 6 press machines (2), the automatic feeding and stacking frame (1), the manipulator (3), the manipulator host (5) and the roll-over stand (4) are fixed on a base which is 12000 mm-15000 mm long, and the best length is 13461 mm.
9. The automatic continuous stamping device for railway signal relay parts as claimed in claim 1, wherein: the interval between the 6 press machines (2) is 1500 mm-1900 mm, preferably 1762 mm.
10. The automatic continuous stamping device for railway signal relay parts as claimed in claim 1, wherein: the 6 presses (2) are 160-ton presses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811136351.XA CN110961544A (en) | 2018-09-28 | 2018-09-28 | Automatic continuous stamping device and method for railway signal relay parts |
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| CN201811136351.XA CN110961544A (en) | 2018-09-28 | 2018-09-28 | Automatic continuous stamping device and method for railway signal relay parts |
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| CN111604405A (en) * | 2020-06-02 | 2020-09-01 | 郑州铁路职业技术学院 | Automatic continuous stamping device of railway signal relay part |
| CN112338039A (en) * | 2020-11-10 | 2021-02-09 | 杭州盈江机械制造有限公司 | Automatic production line and process for crane boom |
| CN113263113A (en) * | 2021-07-19 | 2021-08-17 | 佛山市顺德区凯硕精密模具自动化科技有限公司 | Automatic production line for three-dimensional stamping |
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| CN111604405A (en) * | 2020-06-02 | 2020-09-01 | 郑州铁路职业技术学院 | Automatic continuous stamping device of railway signal relay part |
| CN111604405B (en) * | 2020-06-02 | 2022-01-28 | 郑州铁路职业技术学院 | Automatic continuous stamping device of railway signal relay part |
| CN112338039A (en) * | 2020-11-10 | 2021-02-09 | 杭州盈江机械制造有限公司 | Automatic production line and process for crane boom |
| CN113263113A (en) * | 2021-07-19 | 2021-08-17 | 佛山市顺德区凯硕精密模具自动化科技有限公司 | Automatic production line for three-dimensional stamping |
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