CN213079779U - Transformer tank wall die mould utensil - Google Patents

Abstract

The utility model relates to a transformer tank wall die mould, it includes fixed mounting in subaerial mould support, be fixed with die holder and two support columns on the interior bottom surface of mould support, be fixed with the die on the top surface of die holder, the upside of die holder is equipped with fixed connection's terrace die in proper order, upper die base and punching press piece, the cooperation of pegging graft of die and terrace die, be fixed with the pneumatic cylinder on the interior top surface of mould support, the piston rod of pneumatic cylinder and the top surface fixed connection of punching press piece, the both ends of punching press piece support respectively on two support columns. This application during operation starts the pneumatic cylinder and makes its piston rod extension, and the terrace die moves down and presses on the steel sheet along with the piston rod, and the middle part of steel sheet is inside sunken, and when just laminating to the interior bottom surface of its bottom surface and die, the bottom surface at punching press piece both ends with support respectively on the top surface of two screw thread posts, prevent that the impact of punching press piece from making terrace die and die take place violent striking, have the effect that prevents the die mould damage.

Description

Transformer tank wall die mould utensil

Technical Field

The application relates to the technical field of stamping, in particular to a profiling die for the tank wall of a transformer oil tank.

Background

The wall of the transformer oil tank is generally made of steel plates with the thickness of more than 10 millimeters, the wall of the transformer oil tank is pressed into a folded plate shape through a cold pressing processing technology of a die, and then the folded plate shape is welded into a corrugated tank body, so that the effects of increasing the heat dissipation area and reducing the weight of the tank body are achieved.

In cold pressing, a profiling mold is commonly used, which is a process equipment that uses a mold mounted on a press to apply pressure to a material to cause separation or plastic deformation, thereby obtaining a workpiece with a desired curvature, angle and shape.

At present, chinese utility model patent that publication number is CN204159759U discloses a axle head lid die mould, including cope match-plate pattern, terrace die, lower bolster and cylindric lock, cope match-plate pattern and lower bolster are arranged from top to bottom, and on the cope match-plate pattern lower surface was located to the terrace die, the die was located on the lower bolster upper surface, the terrace die lower surface was the profile the same with axle head lid internal surface shape and size, and the die upper surface is the profile the same with axle head lid external surface shape and size, and terrace die and die are respectively with the help of countersunk screw and cope match-plate pattern and lower bolster fixed connection. When the device works, a sheet material is directly punched by the male die and the female die which are provided with molded surfaces matched with the upper surface and the lower surface of the shaft head cover and matched with a 300-ton hydraulic press, and the sheet material is subjected to plastic deformation to obtain a required workpiece. However, when the oil press presses the sheet, if the oil press presses the sheet excessively, the impact action of the oil press causes the male die and the female die to collide violently, which is likely to cause damage to the profiling die.

In view of the above-mentioned related art, the inventors have considered that there is a drawback that the swaging die is easily damaged by the impact of the oil press.

SUMMERY OF THE UTILITY MODEL

In order to prevent that the die mould from taking place to damage by the impact of hydraulic press, this application provides a transformer tank wall die mould.

The application provides a transformer tank wall die mould adopts following technical scheme:

the utility model provides a transformer tank wall die mould, includes fixed mounting in subaerial mould support, fixed mounting has die holder and two support columns on the interior bottom surface of mould support, fixed mounting has the die on the top surface of die holder, the upside of die holder is provided with fixed connection's terrace die, upper die base and punching press piece in proper order, the die with the cooperation of pegging graft of terrace die, fixed mounting has the pneumatic cylinder on the interior top surface of mould support, the piston rod of pneumatic cylinder with the top surface fixed connection of punching press piece, the both ends of punching press piece support respectively in two on the support column.

By adopting the technical scheme, when the hydraulic press works, the hydraulic cylinder is started, the piston rod of the hydraulic cylinder contracts, the punching block, the upper die holder and the male die move upwards along with the piston rod, the steel plate is placed on the top surface of the female die after the male die is separated from the female die, then the hydraulic cylinder is controlled to extend the piston rod of the hydraulic cylinder, the punching block, the upper die holder and the male die move downwards along with the piston rod, the male die is pressed on the steel plate to enable the middle part of the steel plate to be sunken inwards the female die, and meanwhile, the two raised sides of the steel plate are gradually flattened by the bottom surface of the; in the in-process of die mould, when the bottom surface at steel sheet middle part and the interior bottom surface of die just laminate, the bottom surface at punching press piece both ends is laminated with the top surface of two support columns respectively to this realizes the support of support column counterpunch piece, prevents that the impact of punching press piece from making terrace die and die take place violent striking, thereby has the effect of preventing the die mould damage of die mould.

Preferably, the supporting column comprises a sleeve fixedly installed on the inner bottom surface of the mold support and a threaded column matched with the inner thread of the sleeve.

By adopting the technical scheme, if the thickness of the steel plate to be profiled is reduced, the bottom surface of the middle part of the steel plate is not attached to the inner bottom surface of the female die in the profiling process, and the stamping block is pressed on the supporting column, so that the profiling effect of the steel plate is influenced; if the thickness of the steel plate is increased, when the bottom surface of the middle part of the steel plate is attached to the inner bottom surface of the concave die, the height of the bottom surface of the stamping block is still higher than that of the top surface of the support column, and the support effect of the support column is difficult to ensure; consequently, the steel sheet of different thickness has the difference to the demand of support column height, and the staff only need rotatory screw thread post this moment, and screw thread post and fixed mounting can realize the regulation of screw thread post height in subaerial telescopic screw-thread fit to realized the regulation of support column up end height, satisfied the die mould of different thickness steel sheets with this and required.

Preferably, a buffer pad made of elastic material is fixedly arranged on the upper end face of the threaded column.

Through adopting above-mentioned technical scheme, the blotter is made by rubber, and rubber has good elasticity, presses when the support column when the punching press piece, and the blotter takes place elastic deformation and forms the buffering between punching press piece and support column, prevents that the impact of punching press piece from making the support column take place deformation and vibrations to the support effect of support column has been ensured.

Preferably, a hand wheel is fixedly mounted at the upper end of the threaded column.

Through adopting above-mentioned technical scheme, when needing to rotate the screw thread post, the staff need not with the help of other instruments, only needs both hands to grip the hand wheel and rotate with strength, can realize the regulation of support column height, convenient and fast.

Preferably, the bottom of the stamping block and the bottom of the female die are both fixedly connected with a connecting plate, an adjusting bolt is in threaded fit with the connecting plate, and the adjusting bolt arranged on the stamping block sequentially penetrates through the connecting plate and the upper die base, penetrates into the male die and is in threaded fit with the male die; and the lower adjusting bolt arranged on the female die penetrates into the lower die holder and is in threaded fit with the lower die holder.

Through adopting above-mentioned technical scheme, the adjusting bolt that sets up on the punching press piece makes punching press piece, upper die base and terrace die can fixed connection, and the terrace die can be dismantled by the upper die base, and the lower adjusting bolt that sets up on the die has realized being connected with dismantling of die holder, when needing to be different shapes or the folded plate of size with the steel sheet die mould, only need dismantle terrace die and recess and change, need not to be equipped with many sets of not unidimensional die mould to greatly reduced manufacturing cost.

Preferably, the bottom surface of the upper die base is provided with a groove, the inner side wall of the groove is attached to the side wall of the male die.

Through adopting above-mentioned technical scheme, because the inside wall of recess and the lateral wall laminating of terrace die, the terrace die is restricted in the recess, and the effectual in-process that has prevented the terrace die from pushing down the steel sheet moves along the bottom surface of upper die base to the quality of die mould product has been ensured.

Preferably, the two side edges of the upper die base and the two side edges of the female die are rotatably connected with rolling shafts.

By adopting the technical scheme, in the process that the middle part of the steel plate is sunken inwards, the lower surface of the steel plate moves towards the female die along the edges of the two sides of the female die, and at the moment, the rolling shaft on the female die rotates along with the steel plate; in the process that the lower die holder flattens the two sides of the steel plate to tilt, the upper surface of the steel plate moves along the edges of the two sides of the upper die holder, and at the moment, the rolling shaft on the upper die holder rotates along with the steel plate; the setting of roller bearing makes the sliding friction between steel sheet and upper die base and the die all become rolling friction on the one hand, and frictional force reduces, is favorable to the steel sheet to take place plastic deformation, and on the other hand has prevented that the edge direct contact of steel sheet and upper die base and die from causing wearing and tearing, has ensured the effect of fold shaping back steel sheet quality.

Preferably, a dust cover made of flexible materials is fixedly installed between the hydraulic cylinder and the stamping block, and the dust cover covers a piston rod of the hydraulic cylinder.

Through adopting above-mentioned technical scheme, the dust cover is made by the cloth, and the texture of cloth is flexible, and when the piston rod stretches out and draws back, the dust cover has effectually prevented that external dust from getting into in the pneumatic cylinder by between the piston rod of pneumatic cylinder and the casing to play the effect of protection pneumatic cylinder.

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

when the hydraulic press works, the hydraulic cylinder is started to enable the piston rod to extend, the male die moves downwards along with the piston rod and presses the steel plate, the middle part of the steel plate is sunken inwards, and when the bottom surface of the steel plate is just attached to the inner bottom surface of the female die, the two ends of the stamping block are respectively supported on the two threaded columns, so that the male die and the female die are prevented from being violently impacted under the impact action of the stamping block, and the effect of preventing the compression die from being damaged is achieved;

for the profiling of the steel plates with different thicknesses, the threaded column is rotated, and the height of the supporting column is adjusted through the threaded matching of the threaded column and the sleeve, so that the profiling effect of the steel plates and the supporting effect of the supporting column are ensured, and the profiling requirements of the steel plates with different thicknesses are met;

the rolling shaft arranged on the female die and the upper die base reduces the friction force between the steel plate and the upper die base and between the steel plate and the female die, is beneficial to the inward sinking and plastic deformation of the steel plate, and prevents the steel plate from being worn due to the direct contact with the edges of the upper die base and the female die, thereby ensuring the quality of the steel plate after the steel plate is formed by pressing and folding.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a cross-sectional view of the lower die holder in the example of the application.

FIG. 3 is a schematic structural diagram of a support column in the embodiment of the present application.

Description of reference numerals: 1. a mold holder; 11. a base; 12. a mounting seat; 121. a hydraulic cylinder; 122. a dust cover; 13. a support leg; 2. a lower die holder; 21. a female die; 211. pressing a groove; 3. an upper die holder; 31. stamping the blocks; 32. a male die; 33. a groove; 4. a support pillar; 41. a sleeve; 42. a threaded post; 421. a hand wheel; 422. a cushion pad; 5. a connecting plate; 51. adjusting the bolt; 52. and (4) rolling shafts.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses transformer tank wall die mould. Referring to fig. 1, the transformer oil tank wall profiling mold comprises a mold support 1, a lower mold base 2, an upper mold base 3 and a support column 4. The die support 1 comprises a base 11, a mounting seat 12 and supporting legs 13, wherein the base 11 and the mounting seat 12 are both rectangular, the length directions of the base 11 and the mounting seat 12 are consistent, the base 11 is fixedly mounted on the ground, and the mounting seat 12 is arranged on the upper side of the base 11. The supporting legs 13 are vertically arranged, the lower ends of the supporting legs are fixedly connected with the base 11, and the upper ends of the supporting legs are fixedly connected with the mounting base 12. The number of the legs 13 is four, and the four legs 13 are distributed in a rectangular shape.

Referring to fig. 1, the lower die holder 2 is a rectangular plate, and is fixedly mounted on the top surface of the base 11, the top surface of the lower die holder 2 is fixedly mounted with a female die 21, the female die 21 is rectangular, and the length directions of the lower die holder 2 and the female die 21 are the same as the length direction of the base 11. Referring to fig. 2, a press-type groove 211 is formed in the top surface of the die 21, and an opening of the press-type groove 211 is rectangular and has a length direction identical to a length direction of the die 21.

Referring to fig. 1, the upper die base 3 is a rectangular plate and is disposed on the upper side of the lower die base 2, a punching block 31 is fixedly connected to the top surface of the upper die base 3, and a male die 32 is fixedly mounted on the bottom surface thereof. The stamping block 31 and the punch 32 are both cubic, the length directions of the upper die base 3, the stamping block 31 and the punch 32 are all consistent with the length direction of the base 11, and two ends of the stamping block 31 extend out of the upper die base 3.

Referring to fig. 1, a hydraulic cylinder 121 is fixedly mounted on the bottom surface of the mounting seat 12, a piston rod of the hydraulic cylinder 121 is vertically arranged, and the bottom of the piston rod of the hydraulic cylinder 121 is fixedly connected with the top surface of the stamping block 31. A dust cover 122 is arranged between the hydraulic cylinder 121 and the punch block 31, and the dust cover 122 is made of cloth. The upper end of the dust cover 122 is fixedly connected with the outer side wall of the shell of the hydraulic cylinder 121, the lower end of the dust cover is fixedly connected with the top surface of the stamping block 31, and the dust cover 122 prevents dust from entering the hydraulic cylinder 121 from the space between the piston rod of the hydraulic cylinder 121 and the shell, so that the dust cover plays a role in protecting the hydraulic cylinder 121. The hydraulic cylinders 121 are three, and the three hydraulic cylinders 121 are uniformly distributed along the length direction of the punching block 31. During operation, place the steel sheet in on the top surface of die 21, then start hydraulic cylinder 121 and make its piston rod extension, punching press piece 31, upper die base 3 and terrace die 32 all move down along with the piston rod, and terrace die 32 presses on the steel sheet, and the middle part of steel sheet is along with terrace die 32 to indent 211 in the indent, and the perk of steel sheet both sides is flattened by the bottom surface of die holder 2 gradually to this realization is to the die mould of steel sheet.

Referring to fig. 1 and 2, the two side edges of the upper mold base 3 and the two side edges of the inner side walls of the press-forming grooves 211 are rotatably connected with rollers 52, the cross section of each roller 52 is circular, and the axial direction of each roller 52 is consistent with the length direction of the base 11. In-process at the steel sheet die mould, the steel sheet middle part is inwards sunken and the both sides of perk are flattened by die holder 2 gradually, the lower surface of steel sheet this moment moves to die 21 along the both sides edge of die 21, the upper surface of steel sheet moves along the both sides edge of upper die base 3, the roller bearing 52 on die 21 and on the upper die base 3 all takes place to rotate along with the steel sheet this moment, reduced the frictional force between steel sheet and upper die base 3 and the die 21 on the one hand, be favorable to the steel sheet inwards sunken plastic deformation that takes place, on the other hand has prevented that the edge direct contact of steel sheet and upper die base 3 and die 21 from causing wearing and tearing, the effect of the shaping back steel sheet quality of buckling has been.

Referring to fig. 1, the bottom of the punch block 31 and the side wall of the bottom of the die 21 are both fixedly connected with a connecting plate 5, the connecting plate 5 is rectangular strip-shaped, the length direction of the connecting plate 5 is consistent with the length direction of the upper die base 3, and an adjusting bolt 51 is in threaded fit with the connecting plate 5. Referring to fig. 2, there are two connecting plates 5 disposed on the punch block 31, and the two connecting plates 5 are disposed on both sides of the punch block 31. The adjusting bolt 51 arranged on the stamping block 31 sequentially penetrates through the connecting plate 5 and the upper die base 3, penetrates into the male die 32 and is in threaded fit with the male die 32, so that the stamping block 31, the upper die base 3 and the male die 32 can be fixedly connected, and the male die 32 can be detached from the upper die base 3. The number of the connecting plates 5 arranged on the female die 21 is two, and the two connecting plates 5 are distributed on two sides of the stamping block 31. The lower adjusting bolt 51 arranged on the female die 21 penetrates through the connecting plate 5 and penetrates into the lower die holder 2, and is in threaded fit with the lower die holder 2, so that the female die 21 is detachably connected with the lower die holder 2. If the steel plate needs to be profiled into folded plates with different shapes or sizes, the male die 32 and the groove 33 only need to be disassembled and replaced, and a plurality of sets of profiling dies with different sizes do not need to be arranged, so that the manufacturing cost is greatly reduced. A groove 33 is formed in the bottom surface of the upper die holder 3, an opening of the groove 33 is rectangular, the upper portion of the male die 32 is located in the groove 33, and the side wall of the male die 32 is attached to the inner side wall of the groove 33. The restriction of the groove 33 to the punch 32 prevents the punch 32 from moving along the bottom surface of the upper die holder 3 during pressing the steel plate downward, thereby ensuring the quality of the pressed product.

Referring to fig. 1, the supporting column 4 is disposed on the top surface of the base 11, and as shown in fig. 3, the supporting column 4 includes a sleeve 41 and a threaded column 42. The sleeve 41 is rectangular, the bottom surface thereof is fixedly connected with the top surface of the base 11, and the center of the top surface thereof is provided with an adjusting groove. The adjusting groove is cylindrical, and the axis of the adjusting groove is vertical. The threaded column 42 is cylindrical, the threaded column 42 is arranged in the adjusting groove, and the upper end of the threaded column penetrates through the adjusting groove. The number of the support columns 4 is two, and the two support columns 4 are respectively arranged at two ends of the lower die base 2. In the process of profiling, when the steel plate is sunken to the bottom surface of the steel plate and is just attached to the inner bottom surface of the profiling groove 211, the two ends of the stamping block 31 are respectively supported on the two threaded columns 42, so that the male die 32 and the female die 21 are prevented from being violently impacted by the impact of the stamping block 31, and the effect of preventing the profiling die from being damaged is achieved.

Referring to fig. 3, the inner side wall of the adjustment groove and the cylindrical surface of the threaded column 42 are both provided with threads, and the threaded column 42 is in threaded fit with the adjustment groove. A hand wheel 421 is fixedly mounted on the cylindrical surface at the upper end of the threaded column 42, when the thickness of the steel plate to be profiled is reduced, the hand wheel 421 is rotated, the hand wheel 421 drives the threaded column 42, the threaded column 42 is in threaded fit with the sleeve 41, so that the height of the top surface of the threaded column 42 is reduced, the bottom surface of the steel plate can be attached to the inner bottom surface of the profiled groove 211 when the steel plate is sunken, and the profiling effect of the steel plate is ensured; when the thickness of the steel plate to be profiled is increased, the hand wheel 421 is rotated to raise the height of the top surface of the threaded column 42, so that the support function of the support column 4 on the stamping block 31 is realized, and the height of the upper end surface of the support column 4 is adjusted to meet the profiling requirements of steel plates with different thicknesses.

Referring to fig. 3, the upper end surface of the threaded column 42 is fixedly provided with the cushion pad 422, the cushion pad 422 is made of rubber, the rubber has good elasticity, when the stamping block 31 presses on the support column 4, the cushion pad 422 elastically deforms and forms a cushion between the stamping block 31 and the support column 4, so that the support column 4 is prevented from deforming and vibrating due to the impact of the stamping block 31, and the support effect of the support column 4 is ensured.

The implementation principle of the transformer oil tank wall profiling mold in the embodiment of the application is as follows: during operation, the steel sheet is arranged on the top surface of the female die 21, the hydraulic cylinder 121 is started to enable the piston rod of the hydraulic cylinder to extend, the male die 32 moves downwards along with the piston rod and presses on the steel sheet, the middle of the steel sheet is enabled to be inwards sunken, the two sides of the steel sheet are tilted and gradually flattened by the bottom surface of the lower die holder 2, when the bottom surface of the steel sheet is just attached to the inner bottom surface of the female die 21, the two ends of the stamping block 31 are respectively supported on the two threaded columns 42, the male die 32 and the female die 21 are prevented from being violently impacted under the impact action of the stamping block 31, and.

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 (8)

1. The utility model provides a transformer tank wall die mould which characterized in that: including fixed mounting in subaerial mould support (1), fixed mounting has die holder (2) and two support columns (4) on the interior bottom surface of mould support (1), fixed mounting has die (21) on the top surface of die holder (2), the upside of die holder (2) is provided with fixed connection's terrace die (32), upper die base (3) and punching press piece (31) in proper order, die (21) with terrace die (32) cooperation of pegging graft, fixed mounting has pneumatic cylinder (121) on the interior top surface of mould support (1), the piston rod of pneumatic cylinder (121) with the top surface fixed connection of punching press piece (31), the both ends of punching press piece (31) support respectively in two on support column (4).

2. The profiling die for the tank wall of the transformer tank as claimed in claim 1, wherein: the supporting column (4) comprises a sleeve (41) fixedly mounted on the inner bottom surface of the die support (1) and a threaded column (42) matched with the inner thread of the sleeve (41).

3. The profiling die for the tank wall of the transformer tank as claimed in claim 2, wherein: and a buffer pad (422) made of elastic material is fixedly arranged on the upper end surface of the threaded column (42).

4. The profiling die for the tank wall of the transformer tank as claimed in claim 2, wherein: and a hand wheel (421) is fixedly mounted at the upper end of the threaded column (42).

5. The profiling die for the tank wall of the transformer tank as claimed in claim 1, wherein: the bottom of the stamping block (31) and the bottom of the female die (21) are both fixedly connected with a connecting plate (5), an adjusting bolt (51) is in threaded fit with the connecting plate (5), and the adjusting bolt (51) arranged on the stamping block (31) sequentially penetrates through the connecting plate (5) and the upper die base (3), penetrates into the male die (32), and is in threaded fit with the male die (32); the adjusting bolt (51) arranged on the female die (21) penetrates into the lower die holder (2) and is in threaded fit with the lower die holder (2).

6. The profiling die for the tank wall of the transformer tank as claimed in claim 1, wherein: and a groove (33) with an inner side wall attached to the side wall of the male die (32) is formed in the bottom surface of the upper die base (3).

7. The profiling die for the tank wall of the transformer tank as claimed in claim 1, wherein: and the edges of two sides of the upper die base (3) and the edges of two sides of the female die (21) are rotatably connected with rolling shafts (52).

8. The profiling die for the tank wall of the transformer tank as claimed in claim 1, wherein: a dust cover (122) made of flexible materials is fixedly installed between the hydraulic cylinder (121) and the stamping block (31), and the dust cover (122) covers a piston rod of the hydraulic cylinder (121).

Images