CN112355140A - Novel multi-station flaring progressive die and stamping method for stainless steel round pipe - Google Patents
Novel multi-station flaring progressive die and stamping method for stainless steel round pipe Download PDFInfo
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- CN112355140A CN112355140A CN202011071947.3A CN202011071947A CN112355140A CN 112355140 A CN112355140 A CN 112355140A CN 202011071947 A CN202011071947 A CN 202011071947A CN 112355140 A CN112355140 A CN 112355140A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 22
- 239000010935 stainless steel Substances 0.000 title claims abstract description 22
- 230000000750 progressive effect Effects 0.000 title claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 3
- 238000009966 trimming Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 35
- 238000007599 discharging Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 7
- 239000011265 semifinished product Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012840 feeding operation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005491 wire drawing Methods 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
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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
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of stamping, in particular to a novel multi-station flaring continuous die for a stainless steel round pipe, which comprises an upper die and a lower die which are connected through a plurality of outer guide pillars; the upper die is locked on the upper working table of the punching machine and driven by the upper working table of the punching machine to reciprocate up and down, and the lower die is locked on the lower working table of the punching machine; a plurality of groups of same sub-die frames are arranged between the upper die and the lower die and are used for finishing the processing of a plurality of workpieces at one time; each group of sub-die frames is divided into an upper sub-die frame and a lower sub-die frame and comprises an automatic feeding device, a main body forming die and an edge cutting die; the main body forming die is composed of a plurality of flaring dies and a flattening die which are arranged in sequence. The invention also comprises a method for stamping by using the multi-station flaring progressive die. The invention greatly improves the productivity and the stability of product quality, reduces the labor intensity of workers, reduces the cost of labor and equipment, lays a foundation for the production of top products in China abroad, and has great social benefit.
Description
Technical Field
The invention relates to the technical field of stamping, in particular to a novel multi-station flaring continuous die and a stamping method for a stainless steel round pipe.
Background
A novel oil sprayer seat needs to be formed by flanging a stainless steel round pipe opening, wire drawing and impression are not allowed to exist at the flanging position of an opening, and meanwhile, the cylindricity of an unfurled area is guaranteed. According to the prior art and the prior flaring equipment, the technical requirements of part drawings are difficult to meet, the production efficiency is low, and the yield is low.
Disclosure of Invention
The invention aims to provide a novel multi-station flaring progressive die for a stainless steel round pipe, which mainly solves the problems in the prior art, can improve the production efficiency and reduce the labor amount of workers and the product cost while ensuring the flaring quality of the round pipe.
In order to achieve the purpose, the technical scheme adopted by the invention is to provide a novel multi-station flaring continuous die for a stainless steel round pipe, which is characterized by comprising an upper die and a lower die which are connected through a plurality of outer guide pillars; the upper die is locked on an upper working table surface of the punching machine and driven by the upper working table surface of the punching machine to reciprocate up and down, and the lower die is locked on a lower working table surface of the punching machine; a plurality of groups of same sub-die frames are arranged between the upper die and the lower die and are used for finishing the processing of a plurality of workpieces at one time; each group of sub-die frames is divided into an upper sub-die frame and a lower sub-die frame and comprises an automatic feeding device, a main body forming die and an edge cutting die; the main body forming die is composed of a plurality of flaring dies and a flattening die which are sequentially arranged.
Furthermore, the automatic feeding device consists of a material box, a feeding cylinder, a guide rail, a rotating cylinder and a PLC; after receiving a starting signal from an equipment control panel, the PLC controls the feeding cylinder to horizontally push a workpiece out of the material box and horizontally move towards the direction of the rotary cylinder along the guide rail; when a position sensor beside the rotary cylinder detects that the workpiece reaches the working position of the rotary cylinder, a signal is sent to the PLC, the PLC is triggered to start the rotary cylinder, the workpiece is rotated from the horizontal direction to the vertical direction, and then the workpiece is clamped by a manipulator to finish feeding.
Further, a top dead center position sensor is arranged at the top dead center of the upper working table surface of the punching machine; each time the upper working table surface returns to the top dead center, the top dead center position sensor sends a signal to the PLC, the PLC is triggered to control the feeding cylinder to horizontally push a workpiece out of the feed box, and the workpiece horizontally moves towards the direction of the rotating cylinder along the guide rail; when a position sensor beside the rotary cylinder detects that the workpiece reaches the working position of the rotary cylinder, a signal is sent to the PLC, the PLC is triggered to start the rotary cylinder, the workpiece is rotated from the horizontal direction to the vertical direction, and then the workpiece is clamped by a manipulator to finish feeding.
The flaring die is further characterized by comprising a pressure lever assembly, a flaring male die, a discharging assembly, a flaring female die and a material ejecting assembly; the pressure lever assembly, the flaring male die and the discharging assembly form an upper sub die frame part of the flaring die and are fixed on the upper working table; the flaring female die and the material ejecting assembly form a lower sub-die frame part of the flaring die and are fixed on the lower working table;
when the upper sub-die frame descends, the pressure lever assembly firstly contacts and presses the flaring female die to fix the workpiece; the upper sub-mold frame drives the flaring male mold to continue to descend, and a flaring procedure is completed; when the upper sub-die frame moves upwards, the workpiece is separated from the flaring female die by the material ejecting assembly, and meanwhile, the workpiece is pushed down and separated from the flaring male die by the material discharging assembly, so that the workpiece is prevented from being brought out of the flaring female die.
Further, the taper of the working surface of the flaring male die in the plurality of sequentially arranged flaring dies is sequentially reduced from front to back.
Furthermore, the flaring female dies in the flaring dies which are arranged in sequence are designed in a split mode and comprise a floating side female die and a fixed side female die; when the upper sub-die frame moves downwards, the floating side female die is pressed by the pressure rod assembly, is close to the fixed side female die and is finally completely attached to the fixed side female die, and tightly holds the workpiece; when the upper sub-die frame moves upwards, the floating side female die is jacked upwards by the jacking assembly and separated from the fixed side female die, and the workpiece is released.
Further, the flattening die consists of a pressure lever assembly, a flattening male die, a flattening female die and a material ejecting assembly; the pressing rod assembly and the flattening male die form an upper sub die frame part of the flattening die and are fixed on the upper working table; the flattening female die and the material ejecting assembly form a lower sub die frame part of the flattening die and are fixed on the lower working table surface;
when the upper sub-die frame descends, the pressure lever assembly firstly contacts and presses the flattening female die to fix the workpiece; the upper sub-mold frame drives the flattening male mold to continuously descend to complete a flattening procedure; when the upper sub-die frame moves upwards, the workpiece is separated from the flattening female die by the material ejecting assembly.
Furthermore, the trimming die consists of a stripper plate, a trimming male die, a material ejecting assembly and a trimming female die; the stripper plate and the trimming male die form an upper sub die frame part of the trimming die and are fixed on the upper working table; the trimming female die and the liftout component form a lower sub die frame part of the trimming die and are fixed on the lower working table surface; a plurality of inner guide pillars are arranged between an upper sub-die frame of the trimming die and a lower sub-die frame of the trimming die;
when the upper sub-die frame moves downwards, the guide post on the discharging plate firstly enters the pilot hole of the trimming female die, then the discharging plate compresses and fixes the workpiece, and the upper sub-die frame drives the trimming male die to move downwards continuously to complete the trimming process; when the upper sub-die frame moves upwards, the workpiece is separated from the trimming female die by the material ejecting assembly.
The invention also provides a method for stamping by using the multi-station flaring continuous die, which is characterized by comprising the following steps:
step S101, finishing feeding of the workpiece by using the automatic feeding device;
step S102, conveying the workpiece to a position below the main body forming die by using a manipulator, and processing the workpiece by a plurality of flaring dies and the flattening die in the main body forming die in sequence to obtain a flanged cylinder;
step S103, trimming the flanged cylinder by using the trimming die to obtain a semi-finished product of the oil sprayer seat;
and step S104, finishing blanking by using the manipulator, and finishing a plurality of semi-finished oil injector bases at one time.
Further, the workpiece is an annealed soft stainless steel workpiece.
In view of the technical characteristics, the invention analyzes the performance of the stainless steel material and the material change characteristics in the forming process, subdivides and optimizes the flanging process, solves the key problems of capacity and quality, greatly improves the stability of the capacity and the product quality, greatly reduces the labor intensity of workers, reduces the cost of labor and equipment, creates considerable economic benefits for companies, lays a foundation for the production of top products in China, and has great social benefits.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the multi-station flaring progressive die for the novel stainless steel round pipe of the invention;
FIG. 2 is a schematic structural diagram of a sub-mold frame of a preferred embodiment of the multi-station flaring progressive die for the novel stainless steel round tube;
FIG. 3 is a top view of the lower die frame of the multi-station flaring progressive die for the novel stainless steel round tube of the invention;
FIG. 4 is a structural diagram of a split design of a flaring female die of a preferred embodiment of the multi-station flaring progressive die for the novel stainless steel round pipe;
FIG. 5 is a front view of a novel injector seat blank of the present invention;
FIG. 6 is a top view of FIG. 5;
fig. 7 is a flow chart of a preferred embodiment of the novel method for stamping a circular stainless steel tube according to the present invention.
In the figure: 100-upper die, 200-lower die and 300-sub die frame; 301-upper sub-die frame, 302-lower sub-die frame;
1-an automatic feeding device, 2-a first flaring die, 3-a second flaring die, 4-a third flaring die, 5-a flattening die, 6-a trimming die and 7-a blanking station;
1-1: a bin, 1-2: a feeding cylinder, 1-3: guide rail, 1-4: a rotating cylinder;
2-1: strut assembly, 2-2: flaring male die, 2-3: unloading assembly, 2-4: split type floating flaring die, 2-5: a material ejecting component; 2-4-1: a floating side concave die, 2-4-2: fixing a side concave die;
5-1: flattening male die, 5-2: flattening the female die;
6-1: stripper, 6-2: trimming male die, 6-3: ejection assembly, 6-4: and (6) trimming the female die.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Referring to fig. 5 and 6, the invention relates to a multi-station flaring progressive die and a stamping method for a novel stainless steel round tube, which are used for manufacturing a semi-finished product of a novel oil injector seat. The semi-finished product of novel oil sprayer seat uses the pipe (diameter is 16mm, and the wall thickness is 2.5mm) of stainless steel material as raw and other materials, turns up a flange in the one end of pipe, and its preparation difficult point lies in:
1. need to be at the outer diameter
Flanging the opening of a round pipe with the wall thickness T of 2.5mm to form a round pipe with at least outer diameter
Of the flange of (1). When flaring is performed by a punch, the mouth material is very likely to crack.
2. Will be provided with
Formed after trimming the flange
Inside the mouth turned-over edge, and
the presence of stringiness and embossing is not allowed in the zones.
3. The concentricity of the inner hole and the outer circle of the cylindrical section of the circular tube is guaranteed to be within 0.1.
4. The maximum edge outer diameter of the transition R angle between the inner hole of the circular tube and the flange is not more than phi 14 mm.
In the embodiment of the method, the first step,
referring to fig. 1, a preferred embodiment of a multi-station flaring progressive die for a novel stainless steel round tube according to the present invention comprises an upper die 100 and a lower die 200, wherein the upper die 100 and the lower die 200 are connected by a plurality of outer guide pillars. The upper die 100 is locked on the upper table of the press, and is driven by the upper table to reciprocate up and down during the operation of the press, and the lower die 200 is locked on the lower table of the press and remains stationary during the operation of the press. Two sets of the same sub-die carriers 300 are arranged between the upper die 100 and the lower die 200, the same stamping process is performed, two same workpieces can be machined at a time, two same products are obtained, and therefore production efficiency is improved.
Referring to fig. 2, 3 and 4, each set of sub-mold frames 300 is further divided into an upper sub-mold frame 301 and a lower sub-mold frame 302, which each include an automatic feeding device 1, a main body forming mold and a trimming mold 6. The main body forming die is composed of three flaring dies (a first flaring die 2, a second flaring die 3 and a second flaring die 4) which are sequentially arranged and a flattening die 5. And the machined workpiece is blanked by a manipulator on a blanking station 7.
The automatic feeding device 1 consists of a material box 1-1, a feeding cylinder 1-2, a guide rail 1-3, a rotating cylinder 1-4 and a PLC. And the PLC initiates the feeding operation after receiving a starting signal from an equipment control panel of the punching machine. The feeding operation comprises the following steps: the PLC controls the feeding cylinder 1-2 to horizontally push the workpiece out of the work box 1-1, so that the workpiece horizontally moves towards the direction of the rotating cylinder 1-4 along the guide rail 1-3. And a position sensor is arranged beside the rotary cylinder 1-4. When the position sensor detects that the workpiece reaches the working position of the rotary cylinder 1-4, a signal is sent to the PLC, the PLC is triggered to start the rotary cylinder 1-4 to act, the rotary cylinder 1-4 rotates the workpiece from the horizontal direction to the vertical direction, and then the workpiece is further clamped by the manipulator to finish feeding.
And a top dead center position sensor is also arranged at the top dead center of the upper working table surface of the punching machine and is used for sending a signal to the PLC when the upper working table surface returns to the top dead center every time. And the PLC also initiates the feeding operation after receiving the signal of the top dead center position sensor. Therefore, by combining the starting signal of the equipment control panel and the signal of the top dead center position sensor, the automatic feeding device 1 can automatically initiate and complete the subsequent feeding action in the work of the punching machine after being manually started by the equipment control panel for the first time without manual intervention.
The first flaring die 2, the second flaring die 3 and the second flaring die 4 are consistent in structure and comprise a pressure lever assembly 2-1, a flaring male die 2-2, a discharging assembly 2-3, a split type floating flaring female die 2-4 and a material ejecting assembly 2-5, and the conicity of the working surface of the flaring male die in the flaring dies which are sequentially arranged is sequentially reduced from front to back (namely the conicity of the working surface of the flaring male die in the first flaring die 2 is greater than that of the flaring male die in the second flaring die 3, and the conicity of the working surface of the flaring male die in the second flaring die 3 is greater than that of the working surface of the male die in the third flaring die 4). The pressure lever component 2-1, the flaring male die 2-2 and the discharging component 2-3 form an upper sub die frame part of the flaring die and are fixed on the upper working table. The split type floating flaring female die 2-4 and the material ejection assembly 2-5 form a lower sub-die frame part of the flaring die and are fixed on the lower working table.
In order to solve the problem that the mouth material is very easy to crack in the flaring process, the used stainless steel round tube adopts annealed soft raw materials, and the yield strength of the material is further improved. But the deformation of the outer diameter of the flaring of the soft round tube is larger, so that the concave die can not discharge materials after flaring. In order to solve the problem of discharging, a split type floating flaring concave die 2-4 structure is introduced and consists of a floating side concave die 2-4-1 and a fixed side concave die 2-4-2.
The manipulator puts the work piece into the cavity of the split type floating flaring concave die 2-4, and the upper working table surface of the punching machine drives the upper die carrier 301 to move downwards. When the upper sub-die frame 301 moves downwards, the pressure lever assembly 2-1 firstly contacts and presses the floating side female die 2-4-1 in the split type floating flaring female die 2-4, and the floating side female die 2-4-1 is close to the fixed side female die 2-4-2 and finally completely attached to tightly hold the workpiece. The upper sub-die set 301 drives the flaring male die 2-2 to continue to descend, and the flaring process is finished by the flaring male die 2-2.
When the upper sub-die frame 301 moves upwards, the floating side female die 2-4-1 is jacked upwards by the jacking component of the jacking component, so that the floating side female die is separated from the fixed side female die 2-4-2, a workpiece is released, and the workpiece is separated from the split type floating flaring female die 2-4. Meanwhile, the unloading assembly 2-3 pushes the workpiece down and separates from the flaring punch 2-2 from the upper part, so that the workpiece is prevented from being taken out of the flaring die 2-2.
The flattening die 5 is composed of a pressure bar component 2-1, a flattening convex die 5-1, a flattening concave die 5-2 and a material ejecting component 2-5. The pressure bar component 2-1 and the flattening convex die 5-1 form an upper sub die frame part of the flattening die 5 and are fixed on the upper working table surface. The flattening female die 5-2 and the material ejecting component 2-5 form a lower sub die frame part of the flattening die 5 and are fixed on the lower working table surface.
When the upper sub-die frame 301 descends, the compression bar component 2-1 firstly contacts and compresses the flattening female die 5-2 to fix a workpiece. The upper sub-die set 301 drives the flattening convex die 5-1 to continuously descend, and the flattening process is completed by the flattening convex die 5-1. When the upper sub-die carrier moves upwards 301, the workpiece is separated from the flattening female die 5-2 by the material ejecting component 2-5.
The trimming die 6 consists of a stripper 6-1, a trimming male die 6-2, a liftout subassembly 6-3 and a trimming female die 6-4. The stripper 6-1 and the trimming male die 6-2 form an upper sub die frame part of the trimming die 6 and are fixed on the upper working table. The trimming female die 6-2 and the liftout component 6-3 form a lower sub die frame part of the trimming die 6 and are fixed on the lower working table surface. Four inner guide posts are arranged between the upper sub die frame of the trimming die 6 and the lower sub die frame of the trimming die 6, so that the punching force is further balanced, and the blanking gap is ensured to be more uniform.
When the upper sub-die carrier 301 descends, the guide post on the stripper 6-1 firstly enters the pilot hole of the trimming concave die 6-4, and then the stripper 6-1 continues to descend to press and fix the workpiece. The upper sub-die set 301 drives the trimming convex die 6-2 to continuously move downwards, and the trimming convex die 6-2 completes the trimming process. When the upper sub-die frame 301 moves upwards, the ejector assembly 6-3 separates the workpiece from the trimming female die 6-4.
Referring to fig. 7, the present invention further includes a method for press working using a multi-station flaring progressive die, wherein the raw material to be worked is a round tube-shaped annealed soft stainless steel workpiece, comprising the steps of:
and S101, finishing the feeding of the workpiece by using an automatic feeding device.
Step S102, a manipulator is used for conveying a workpiece to a position below a main body forming die, and the workpiece is sequentially processed by a plurality of flaring dies and a flattening die in the main body forming die to obtain a cylinder with a flange; the diameter of the flange is then at least 28 mm.
Step S103, trimming the flanged cylinder by using a trimming die to obtain a semi-finished product of the injector seat; the diameter of the flange at this time satisfies 24 mm. + -. 0.1 mm.
And step S104, finishing blanking by using a manipulator, and finishing two semi-finished products of the oil sprayer seat at one time.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A novel multi-station flaring progressive die for a stainless steel round pipe is characterized by comprising an upper die and a lower die which are connected through a plurality of outer guide pillars; the upper die is locked on an upper working table surface of the punching machine and driven by the upper working table surface of the punching machine to reciprocate up and down, and the lower die is locked on a lower working table surface of the punching machine; a plurality of groups of same sub-die frames are arranged between the upper die and the lower die and are used for finishing the processing of a plurality of workpieces at one time; each group of sub-die frames is divided into an upper sub-die frame and a lower sub-die frame and comprises an automatic feeding device, a main body forming die and an edge cutting die; the main body forming die is composed of a plurality of flaring dies and a flattening die which are sequentially arranged.
2. The multi-station flaring progressive die of claim 1, wherein the automatic feeding device consists of a material box, a feeding cylinder, a guide rail, a rotating cylinder and a PLC; after receiving a starting signal from an equipment control panel, the PLC controls the feeding cylinder to horizontally push a workpiece out of the material box and horizontally move towards the direction of the rotary cylinder along the guide rail; when a position sensor beside the rotary cylinder detects that the workpiece reaches the working position of the rotary cylinder, a signal is sent to the PLC, the PLC is triggered to start the rotary cylinder, the workpiece is rotated from the horizontal direction to the vertical direction, and then the workpiece is clamped by a manipulator to finish feeding.
3. The multi-station flaring progressive die of claim 2, wherein a top dead center position sensor is provided at a top dead center of said upper table surface of said punch; each time the upper working table surface returns to the top dead center, the top dead center position sensor sends a signal to the PLC, the PLC is triggered to control the feeding cylinder to horizontally push a workpiece out of the feed box, and the workpiece horizontally moves towards the direction of the rotating cylinder along the guide rail; when a position sensor beside the rotary cylinder detects that the workpiece reaches the working position of the rotary cylinder, a signal is sent to the PLC, the PLC is triggered to start the rotary cylinder, the workpiece is rotated from the horizontal direction to the vertical direction, and then the workpiece is clamped by a manipulator to finish feeding.
4. The novel multi-station flaring progressive die for the stainless steel round tubes as claimed in claim 1, wherein the flaring die is composed of a pressure bar assembly, a flaring male die, a discharging assembly, a flaring female die and a material ejecting assembly; the pressure lever assembly, the flaring male die and the discharging assembly form an upper sub die frame part of the flaring die and are fixed on the upper working table; the flaring female die and the material ejecting assembly form a lower sub-die frame part of the flaring die and are fixed on the lower working table;
when the upper sub-die frame descends, the pressure lever assembly firstly contacts and presses the flaring female die to fix the workpiece; the upper sub-mold frame drives the flaring male mold to continue to descend, and a flaring procedure is completed; when the upper sub-die frame moves upwards, the workpiece is separated from the flaring female die by the material ejecting assembly, and meanwhile, the workpiece is pushed down and separated from the flaring male die by the material discharging assembly, so that the workpiece is prevented from being brought out of the flaring female die.
5. The multi-station flaring progressive die of claim 4, wherein the taper of the working surfaces of said flaring punches in a plurality of sequentially arranged flaring dies decreases sequentially from front to back.
6. The multi-station flaring progressive die of claim 4, wherein the flaring female dies in the flaring dies arranged in sequence are of a split design and comprise a floating side female die and a fixed side female die; when the upper sub-die frame moves downwards, the floating side female die is pressed by the pressure rod assembly, is close to the fixed side female die and is finally completely attached to the fixed side female die, and tightly holds the workpiece; when the upper sub-die frame moves upwards, the floating side female die is jacked upwards by the jacking assembly and separated from the fixed side female die, and the workpiece is released.
7. The multi-station flaring progressive die of claim 1, wherein the flaring die is composed of a pressure lever assembly, a flaring male die, a flaring female die, a discharging assembly and a push rod assembly, wherein the pressure lever assembly and the flattening male die form an upper sub die frame part of the flattening die and are fixed on the upper working table surface; the flattening female die and the material ejecting assembly form a lower sub die frame part of the flattening die and are fixed on the lower working table surface;
when the upper sub-die frame descends, the pressure lever assembly firstly contacts and presses the flattening female die to fix the workpiece; the upper sub-mold frame drives the flattening male mold to continuously descend to complete a flattening procedure; when the upper sub-die frame moves upwards, the workpiece is separated from the flattening female die by the material ejecting assembly.
8. The multi-station flaring progressive die of claim 1, wherein the trimming die consists of a stripper plate, a trimming male die, a liftout assembly and a trimming female die; the stripper plate and the trimming male die form an upper sub die frame part of the trimming die and are fixed on the upper working table; the trimming female die and the liftout component form a lower sub die frame part of the trimming die and are fixed on the lower working table surface; a plurality of inner guide pillars are arranged between an upper sub-die frame of the trimming die and a lower sub-die frame of the trimming die;
when the upper sub-die frame moves downwards, the guide post on the discharging plate firstly enters the pilot hole of the trimming female die, then the discharging plate compresses and fixes the workpiece, and the upper sub-die frame drives the trimming male die to move downwards continuously to complete the trimming process; when the upper sub-die frame moves upwards, the workpiece is separated from the trimming female die by the material ejecting assembly.
9. A press working method using the multi-station flare progressive die as set forth in claim 1, comprising the steps of:
step S101, finishing feeding of the workpiece by using the automatic feeding device;
step S102, conveying the workpiece to a position below the main body forming die by using a manipulator, and processing the workpiece by a plurality of flaring dies and the flattening die in the main body forming die in sequence to obtain a flanged cylinder;
step S103, trimming the flanged cylinder by using the trimming die to obtain a semi-finished product of the oil sprayer seat;
and step S104, finishing blanking by using the manipulator, and finishing a plurality of semi-finished oil injector bases at one time.
10. The press working method according to claim 9, wherein the workpiece is an annealed soft stainless steel workpiece.
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Address after: 201112 No. 96, Jiangchao Road, Minhang District, Shanghai Applicant after: Saiwo Zhizao (Shanghai) Technology Co.,Ltd. Address before: No.20196 minchao Road, Pujiang Town, Shanghai Applicant before: SHANGHAI WINKELMANN LONGCHUAN (SWL) MOTORCOMPONENTS Co.,Ltd. |
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Application publication date: 20210212 |