CN214442802U

CN214442802U - Lower die for flange skin cutting

Info

Publication number: CN214442802U
Application number: CN202120233321.1U
Authority: CN
Inventors: 彭玉香; 何庆桥; 彭小庆; 程天贵; 徐兵
Original assignee: Jinan Haote Industry And Trade Co ltd
Current assignee: Jinan Haote Industry And Trade Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-22
Anticipated expiration: 2031-01-26

Abstract

The utility model relates to a lower die for flange slab cutting belongs to the forged technical field of flange, and it includes the circular shape piece of placing, it sets up on the workstation to place the piece, place a center department and seted up first discharge opening, first discharge opening is the round platform form, and the second discharge opening has been seted up to the workstation, first discharge opening and the coaxial setting of second discharge opening, the diameter of second discharge opening is the same with the diameter of bottom surface under the first discharge opening. When the tup excision was even skinned, because the diameter of even skinning is the diameter of bottom surface on the first discharge opening, and the diameter of second discharge opening is greater than first discharge opening, consequently even the skinning fall into the discharge opening after, can not block in the discharge opening.

Description

Lower die for flange skin cutting

Technical Field

The application relates to the field of flange forging, in particular to a lower die for cutting a flange into skin.

Background

The flange is also called flange plate or flange at present. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges. The production process of the flange mainly comprises four processes of forging, casting, cutting and rolling, wherein the number of the cast flange and the forged flange is large. The cast flange has the advantages of accurate blank shape and size, small processing amount and low cost, but has casting defects (air holes, cracks and inclusions); the internal structure of the casting is poor in streamline (if the casting is a cutting piece, the streamline is poor); the forged flange generally has lower carbon content than the cast flange and is not easy to rust, the forged piece has good streamline shape and compact structure, and the mechanical property of the forged flange is superior to that of the cast flange. The flange forging process mostly comprises the following process steps: s1: blanking, cutting the steel material into blanks according to the weight; s2: calcining, namely heating the blank to facilitate subsequent forging and pressing; s3: forging, wherein the blank is forged into a blank by a forging press, and the forging comprises the following three steps: s31: preliminary forging, performing preliminary forging on the blank to enable the blank to be close to the shape of a blank; s32: final forging, namely forging and pressing the blank again to ensure that the outer contour of the blank is the same as that of the blank, but the central part of the blank is provided with a connecting skin; s33: cutting the skin, namely cutting the skin of the blank to enable the blank to become a blank; s4: cooling, namely cooling the blank to room temperature; s5: and machining, namely machining the blank into a finished flange. In view of the above related technologies, the inventor thinks that in the process of peeling, the lower die for placing the blank is usually fixed on the workbench, and the lower die and the workbench are coaxially provided with blanking holes with the same diameter, so that in the process of peeling, the peeled connected skin is discharged from the blanking holes, but because the diameters of the blanking holes are all equal, the cut connected skin is easily clamped in the blanking holes.

SUMMERY OF THE UTILITY MODEL

In order to avoid the company's of excision skin card downthehole at the blanking, this application provides a lower mould is used to flange surely skin.

The application provides a pair of lower mould for flange skin cutting adopts following technical scheme:

the utility model provides a lower die for flange skin cutting, includes the circular shape piece of placing, it sets up on the workstation to place the piece, it has seted up first discharge opening to place piece center department, first discharge opening is the round platform form, and the second discharge opening has been seted up to the workstation, first discharge opening and the coaxial setting of second discharge opening, the diameter of second discharge opening is the same with the diameter of bottom surface under the first discharge opening.

Through adopting above-mentioned technical scheme, when the tup excision was even skinned, because the diameter of even skinning is the diameter of bottom surface on the first discharge opening, and the diameter of second discharge opening is greater than the diameter of bottom surface on the first discharge opening, consequently even after the skinning falls into the second discharge opening, can not block in the second discharge opening.

Optionally, the placing block is detachably connected with a circular connecting block, the connecting block is arranged on the workbench, a third discharging hole is formed in the connecting block, and the diameter of the third discharging hole is the same as that of the second discharging hole.

Through adopting above-mentioned technical scheme, the purpose that sets up the connecting block is, firstly, raise the height of placing the piece for the tup has sufficient space of movement in second discharge opening and third discharge opening, secondly because the temperature of blank is higher, consequently require just than higher to the material of placing the piece, and the material of connecting block compares not too high, consequently also can reduce the volume of placing the piece through addding the connecting block, thereby save partly cost.

Optionally, the placing block is connected with a mounting bolt in a threaded manner, and the mounting bolt is connected with the connecting block in a threaded manner.

Through adopting above-mentioned technical scheme, through construction bolt, be convenient for realize the connecting block with place the connection between the two of piece.

Optionally, a placing groove is formed in the upper surface of the placing block, the mounting bolt is a hexagon socket head cap screw, and the mounting bolt is placed in the placing groove and is in threaded connection with the placing block and the connecting block.

Through adopting above-mentioned technical scheme, the purpose that sets up the standing groove is, will place the piece and be connected the back with the connecting block at construction bolt, can not the protrusion place the piece, and then cause the influence to the blank.

Optionally, the annular has been seted up on the workstation, the connecting block joint is provided with locking part in the annular on the workstation, locking part is used for locking the connecting block.

Through adopting above-mentioned technical scheme, make connecting block and workstation can dismantle the purpose of being connected, can change it, the staff's of being convenient for equipment.

Optionally, the locking part comprises a locking block, the locking block is coaxially sleeved on the connecting block, the outer wall of the connecting block and the inner wall of the locking block are both provided with inclined planes, the locking block is abutted against the connecting block, a locking bolt is in threaded connection with the locking block, and the locking bolt is in threaded connection with the workbench.

Through adopting above-mentioned technical scheme, with the connecting block joint in the annular after, overlap the latch segment on the connecting block, then twist locking bolt for the latch segment supports the connecting block tightly under the effect on inclined plane, and locking bolt is more deep more, and the latch segment will be supported tightly.

Optionally, the upper surface of the connecting block is provided with a groove, and the lower surface of the placing block is fixed with a projection which is clamped in the groove.

Through adopting above-mentioned technical scheme, set up the purpose of lug joint in the recess, firstly improve the connecting block and place the connection steadiness between the piece, secondly owing to when cutting the skin, place the piece and can receive radial power, consequently can play the guard action to construction bolt, extension construction bolt's life.

Optionally, a block is installed in the placing groove.

Through adopting above-mentioned technical scheme, the purpose that sets up the sprue is because when the blank is cut the skin, the blank receives pressure can partial waste residue that drops, therefore the waste residue drops to the standing groove back in, can influence staff's the locking bolt of twisting.

Optionally, the placing block is provided with a containing groove, one end of the containing groove is communicated with the placing groove, the other end of the containing groove is communicated with the outside, the containing groove is internally clamped on the lifting rod, one end of the lifting rod is fixedly connected with the blocking block, and the other end of the lifting rod extends to the outside.

Through adopting above-mentioned technical scheme, when dismantling and placing the piece, need take out the sprue from the standing groove, consequently need take out the holding tank with the shadoof for the shadoof drives the sprue and breaks away from the standing groove, thereby makes the staff can twist and move the locking bolt.

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

1. the purpose of arranging the first discharging hole in a circular truncated cone shape and arranging the second discharging hole with the diameter larger than that of the lower bottom surface of the first discharging hole is that when the hammer head cuts off the connected skin, the connected skin cannot be clamped in the second discharging hole after falling into the second discharging hole because the diameter of the connected skin is the diameter of the upper bottom surface of the first discharging hole and the diameter of the second discharging hole is larger than that of the first discharging hole;

2. the purpose of arranging the placing groove and the mounting bolt as the hexagon socket head cap screw is to arrange the mounting bolt in the placing groove, and then to screw the mounting bolt by using a wrench, so that the mounting bolt is in threaded connection with the placing block and the connecting block, and the blank is not affected because the mounting bolt does not protrude out of the placing block;

3. the purpose of setting up the sprue is because when the blank is surely skinned, the blank receives pressure can partial waste residue that drops, therefore the waste residue drops to the standing groove in the back, can influence staff's the locking bolt of twisting.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view showing the connection relationship of the placement block, the connection block and the work table after the lower mold is partially cut away.

Description of reference numerals: 100. a work table; 110. a second discharge hole; 120. a ring groove; 130. a locking member; 131. a locking block; 132. locking the bolt; 200. placing the blocks; 210. a first discharge hole; 220. a bump; 230. a placement groove; 240. installing a bolt; 250. blocking; 260. accommodating grooves; 270. lifting a rod; 300. connecting blocks; 310. a third discharge hole; 320. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses flange is cut skin and is used bed die.

Referring to fig. 1, the lower die for flange peeling comprises a circular placing block 200 and a circular connecting block 300 (see fig. 2), the placing block 200 is detachably connected with the connecting block 300, and the connecting block 300 is detachably connected with the worktable 100.

Referring to fig. 2, a first discharge hole 210 in the shape of a circular truncated cone is formed in the center of the placement block 200, a third discharge hole 310 is formed in the connection block 300, a second discharge hole 110 is formed in the workbench 100, and the first discharge hole 210, the second discharge hole 110 and the third discharge hole 310 are coaxially arranged. The diameter of the second discharging hole 110 and the diameter of the third discharging hole 310 are the same as the diameter of the bottom surface of the first discharging hole 210, and are both larger than the diameter of the top surface of the first discharging hole 210.

In order to realize the detachable connection of the placing block 200 and the connecting block 300, an annular groove 320 is formed in the upper surface of the connecting block 300, a convex block 220 is coaxially welded to the lower surface of the placing block 200, and the convex block 220 is clamped in the groove 320. The upper surface of the placing block 200 is evenly provided with vertical placing grooves 230 along the circumferential direction, mounting bolts 240 are placed in the placing grooves 230, the mounting bolts 240 are hexagon socket head bolts, and are in threaded connection with the placing block 200 and the connecting block 300 so as to connect the placing block and the connecting block together.

When the hammer head cuts off the connecting skin, scraps are placed into the placing groove 230, so that the installation bolt 240 is screwed by workers, the blocking block 250 is clamped in the placing groove 230, the horizontal containing groove 260 is formed in the surface of the placing block 200, one end of the containing groove 260 is communicated with the outside, and the other end of the containing groove 260 is communicated with the placing groove 230. The holding groove 260 is internally clamped with a lifting rod 270, one end of the lifting rod 270 is welded with the blocking block 250, and the other end of the lifting rod extends to the outside.

In order to realize the detachable connection of the connecting block 300 and the workbench 100, a ring groove 120 is formed on the workbench 100, the connecting block 300 is clamped in the ring groove 120, a locking component 130 is arranged on the workbench 100, and the locking component 130 locks the connecting block 300.

The locking component 130 comprises a locking block 131, the locking block 131 is coaxially sleeved on the connecting block 300, the outer wall of the connecting block 300 and the inner wall of the locking block 131 are both arranged to be inclined planes, and the locking block 131 is abutted to the connecting block 300. The locking block 131 is screwed with a vertical locking bolt 132, the locking bolt 132 is screwed with the workbench 100, and the locking bolt 132 is a hexagon socket head cap screw.

The implementation principle of the lower die for flange skin cutting in the embodiment of the application is as follows: firstly, the connecting block 300 is clamped in the ring groove 120, then the locking block 131 is coaxially sleeved on the connecting block 300, and then the locking bolt 132 is screwed, so that the locking block 131 tightly abuts against the connecting block 300;

then the placing block 200 abuts against the connecting block 300, the bump 220 is clamped in the groove 320, then the mounting bolt 240 is placed in the placing groove 230, and then the mounting bolt 240 is screwed, so that the connecting block 300 and the placing block 200 are connected. The blank is then placed on the placing block 200, and then the hammer head is driven to cut the skin of the blank, so that the skin is discharged from the second discharging hole 110.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flange is cut skin and is used bed die which characterized in that: including the circular shape place piece (200), place piece (200) and set up on workstation (100), place piece (200) center department and seted up first discharge opening (210), first discharge opening (210) are the round platform form, and second discharge opening (110) have been seted up in workstation (100), first discharge opening (210) and the coaxial setting of second discharge opening (110), the diameter of second discharge opening (110) is the same with the diameter of bottom surface under first discharge opening (210).

2. The lower die for flange skiving according to claim 1, wherein: the round connecting block (300) is detachably connected to the placing block (200), the connecting block (300) is arranged on the workbench (100), a third discharging hole (310) is formed in the connecting block (300), and the diameter of the third discharging hole (310) is the same as that of the second discharging hole (110).

3. The lower die for flange skiving according to claim 2, wherein: the placing block (200) is connected with a mounting bolt (240) through threads, and the mounting bolt (240) is connected with the connecting block (300) through threads.

4. The lower die for flange skiving according to claim 3, wherein: the upper surface of the placing block (200) is provided with a placing groove (230), the mounting bolt (240) is a hexagon socket head cap screw and is placed in the placing groove (230) to be in threaded connection with the placing block (200) and the connecting block (300).

5. The lower die for flange skiving according to claim 2, wherein: annular groove (120) have been seted up on workstation (100), connecting block (300) joint is provided with locking part (130) on workstation (100) in annular groove (120), locking part (130) are used for locking connecting block (300).

6. The lower die for flange peeling according to claim 5, wherein: locking part (130) include latch segment (131), on connecting block (300) was located to latch segment (131) coaxial cover to the outer wall of connecting block (300) and the inner wall of latch segment (131) all set to the inclined plane, latch segment (131) and connecting block (300) butt, threaded connection has locking bolt (132) on latch segment (131), locking bolt (132) and workstation (100) threaded connection.

7. The lower die for flange peeling according to claim 4, wherein: the placing groove (230) is internally provided with a block (250).

8. The lower die for flange skiving according to claim 7, wherein: holding tank (260) have been seted up on placing piece (200), holding tank (260) one end and standing groove (230) intercommunication, the other end and external intercommunication, joint in holding tank (260) in the shadoof (270), the one end and the sprue (250) fixed connection of shadoof (270), the other end extends to the external world.