CN220444821U - Stamping die - Google Patents

Abstract

The utility model discloses a stamping die, which relates to the technical field of square tube punching dies and adopts the technical scheme that: including the die holder, the fixed lower mould and the mold core supporting seat of being equipped with in die holder top, the lower mould top is equipped with the mould, and mold core supporting seat one side is fixed to be equipped with the mold core, and mold core one end extends into inside the lower mould, and the spout has been seted up to the mold core inside, and the mold core is inside to be equipped with location adjustment mechanism, and a stamping die beneficial effect is: support the side pipe through the mold core for the side pipe can not appear the condition that the pressurized takes place to warp when punching a hole, protects the side pipe, guarantees the precision of punching a hole simultaneously and guarantees product quality, moves the trapezoidal spout through the connecting plate and removes to next trapezoidal board bottom, makes preceding trapezoidal board drive locating pin income apron inside, and new trapezoidal board drives the locating pin and stretches out the apron, reaches the purpose of changing square pipe locate position, reaches the purpose of automatic change locating pin, need not to punch a hole the in-process and frequently changes, improves punching efficiency.

Description

Stamping die

Technical Field

The utility model relates to the technical field of square tube punching dies, in particular to a punching die.

Background

When square pipe composite products are processed, punching treatment is needed in advance.

For example, publication No.: CN211437701U, the utility model is a square tube cut-out press, including upper die base and lower die base, the upper side of upper die base has hydraulic cylinder, can drive the upper die base to move up and down, the lower end face of upper die base is removably fitted with the round hole punching module, the lower die base includes the lower die of the base, gasket guard plate, lower clamp plate upper die, upper clamp plate connecting block, guiding mechanism and height-adjusting mechanism, the square tube guide rod passes the guiding mechanism between upper clamp plate and lower clamp plate while working, drive the upper die base to move down and realize the square tube hole punching by the hydraulic cylinder, the mould of the utility model can be regulated according to the cross-sectional dimension of the square tube, suitable for the square tube hole punching processing of various specifications.

In the above-mentioned patent, punch a hole through upper and lower mould cooperation to the side pipe, but the square pipe wall thickness of part model is thinner, and square pipe center lacks the mold core support when punching a hole, causes the back side pipe deformation of punching a hole easily, and the locating pin of needs frequent change when punching a plurality of holes even simultaneously influences punching efficiency.

Disclosure of Invention

Therefore, the utility model provides the stamping die, and the problem that the square tube is easy to deform after punching due to the fact that the center of the square tube lacks a die core support during punching of the square tube, and meanwhile, the punching efficiency is affected due to the fact that the positioning pins are required to be replaced frequently during continuous punching of a plurality of holes is solved through the positioning and adjusting mechanism.

In order to achieve the above object, the present utility model provides the following technical solutions: the stamping die comprises a die holder, wherein a lower die and a die core supporting seat are fixedly arranged at the top of the die holder, an upper die is arranged at the top of the lower die, a die core is fixedly arranged on one side of the die core supporting seat, one end of the die core extends into the lower die, a sliding groove is formed in the die core, and a positioning and adjusting mechanism is arranged in the die core;

the positioning adjusting mechanism comprises a connecting plate, the connecting plate runs through the spout and is connected with spout sliding, trapezoidal spout has been seted up at the connecting plate top, the connecting plate top is equipped with locating pin subassembly, the connecting plate both ends are all fixed and are equipped with the plectrum, two plectrum one side all is equipped with locating pin adjusting part, the locating pin subassembly includes the apron, the inside grafting of apron has a plurality of locating pin units, the locating pin unit includes the trapezoidal board, trapezoidal board top is fixed to be equipped with locating pin and two telescopic links, the outside cover of locating pin is equipped with the spring, locating pin adjusting part includes the chain, chain and plectrum fixed connection, the inside cover of chain is equipped with two sprockets, two inside fixed grafting of sprocket has pivot one and pivot two respectively, an external connection of pivot has drive unit.

Preferably, the driving unit comprises a one-way bearing, the one-way bearing is fixedly sleeved outside the rotating shaft, a gear is fixedly sleeved outside the one-way bearing, a rack is arranged on one side of the gear, the gear is meshed with the rack, a hollow rod is fixedly arranged on one side of the rack, a guide rod is inserted inside the hollow rod, a connecting block is fixedly arranged at the top of the hollow rod, and the connecting block is fixedly connected with the upper die.

Preferably, the hollow rod is in sliding connection with the guide rod, and the bottom of the guide rod is fixedly connected with the top of the die holder.

Preferably, both of the sprockets are engaged with a chain, and both of the sprockets are drivingly connected by the chain.

Preferably, the first rotating shaft and the second rotating shaft are provided with protection plates at one ends, the first rotating shaft and the second rotating shaft are connected with the protection plates through bearings, the protection plates are fixedly connected with the lower die and the die core supporting seat respectively, the first other end of the rotating shaft is connected with one side wall of the lower die through bearings, and the second other end of the rotating shaft is fixedly connected with one side wall of the die core supporting seat.

Preferably, the trapezoid sliding groove is in sliding connection with the trapezoid plate.

Preferably, the top of the telescopic rod is fixedly connected with the bottom of the cover plate, and the cover plate is fixedly connected with the mold core.

Preferably, the locating pin penetrates through the cover plate and is in sliding connection with the cover plate.

Preferably, the top of the spring is fixedly connected with the bottom of the cover plate, and the bottom of the spring is fixedly connected with the top of the trapezoid plate.

The embodiment of the utility model has the following advantages:

1. the square tube is sleeved outside the die core and is inserted into the lower die, the inserted square tube is positioned through the positioning pin protruding out of the cover plate, so that the punching position is determined, the square tube is punched by pressing down the upper die, and the square tube is protected due to the fact that the die core supports the square tube, so that the square tube cannot be deformed under pressure during punching, and meanwhile punching precision and product quality are guaranteed;

2. the trapezoidal sliding groove is driven to move to the bottom of the next trapezoidal plate through movement of the connecting plate, so that the former trapezoidal plate drives the locating pin to be retracted into the cover plate, the new trapezoidal plate drives the locating pin to extend out of the cover plate, the purpose of changing the locating position of the square pipe is achieved, at the moment, the square pipe is lost to be limited, the square pipe is pushed to move so that the square pipe is contacted with the new locating pin, the new punching position is determined, the purpose of automatically changing the locating pin is achieved, frequent replacement in the punching process is not needed, and the punching efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic view of the overall structure provided by the present utility model;

FIG. 2 is a perspective view of the connection relationship at the positioning adjusting mechanism provided by the utility model;

FIG. 3 is a left side partially cut-away perspective view provided by the present utility model;

FIG. 4 is a perspective view of a positioning adjustment mechanism provided by the present utility model;

FIG. 5 is a perspective view, partially in section, of a positioning adjustment mechanism provided by the present utility model;

fig. 6 is a perspective view of a connection relationship at a positioning pin unit provided by the utility model.

In the figure: the mold comprises a mold seat 1, a lower mold 2, an upper mold 3, a connecting block 4, a hollow rod 5, a guide rod 6, a rack 7, a gear 8, a one-way bearing 9, a protection plate 10, a chain wheel 11, a rotating shaft 12, a rotating shaft 13, a chain 14, a shifting plate 15, a connecting plate 16, a trapezoid chute 17, a trapezoid plate 18, a telescopic rod 19, a positioning pin 20, a spring 21, a mold core 22, a chute 23, a cover plate 24 and a mold core support seat 25.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the stamping die provided by the utility model comprises a die holder 1, wherein a lower die 2 and a die core supporting seat 25 are fixedly arranged at the top of the die holder 1, an upper die 3 is arranged at the top of the lower die 2, a die core 22 is fixedly arranged at one side of the die core supporting seat 25, one end of the die core 22 extends into the lower die 2, a sliding groove 23 is formed in the die core 22, and a positioning and adjusting mechanism is arranged in the die core 22;

the positioning adjusting mechanism comprises a connecting plate 16, the connecting plate 16 penetrates through a sliding groove 23 and is in sliding connection with the sliding groove 23, a trapezoid sliding groove 17 is formed in the top of the connecting plate 16, a positioning pin assembly is arranged at the top of the connecting plate 16, two shifting plates 15 are fixedly arranged at two ends of the connecting plate 16, positioning pin adjusting assemblies are arranged on one sides of the two shifting plates 15, each positioning pin assembly comprises a cover plate 24, a plurality of positioning pin units are inserted into the cover plates 24, each positioning pin unit comprises a trapezoid plate 18, a positioning pin 20 and two telescopic rods 19 are fixedly arranged at the top of each trapezoid plate 18, a spring 21 is sleeved outside each positioning pin 20, each positioning pin adjusting assembly comprises a chain 14, the chain 14 is fixedly connected with the corresponding shifting plate 15, two chain wheels 11 are sleeved inside the chain 14, a first rotating shaft 12 and a second rotating shaft 13 are fixedly inserted into the two chain wheels 11, and a driving unit is connected to the first rotating shaft 12;

in this embodiment, in order to protect the square tube during punching, prevent the deformation caused by compression, and automatically replace the position of the positioning pin 20 at the same time, so as to facilitate the continuous punching of the square tube, the square tube is sleeved outside the die core 22 and simultaneously inserted into the lower die 2, the positioning pin 20 protruding from the cover plate 24 is used for positioning the inserted square tube, so as to determine the punching position, the upper die 3 presses down the square tube to punch, and the die core 22 supports the square tube, so that the square tube is not deformed under compression during punching, the square tube is protected, meanwhile, the punching precision is ensured, the product quality is ensured, when the upper die 3 moves upwards, the driving unit is used for rotating the first rotating shaft 12, the first rotating shaft 12 rotates to rotate the chain 14 through the external sprocket 11, the chain 14 rotates to enable the connecting plate 16 to move along the chute 23 through the shifting plate 15, the connecting plate 16 moves to drive the trapezoid chute 17 to the bottom of the next trapezoid plate 18, that is, the former trapezoid plate 18 drives the positioning pin 20 to the inside the cover plate 24, the new trapezoid plate 18 drives the positioning pin 20 to stretch out of the cover plate 24, so that the square tube 20 can not change the positioning pin, and the square tube is frequently replaced, when the upper die 3 moves upwards, the new square tube is reset, and the positioning pin 20 is reset, so that the square tube is frequently replaced, and the punching position is required to be replaced, and the square tube is positioned when the punching is reset, and the punching position is frequently replaced;

in order to achieve the purpose that the upper die 3 moves to control the rotating shaft I12 to rotate through the driving unit, the device is achieved by adopting the following technical scheme: the drive unit comprises a one-way bearing 9, the one-way bearing 9 is fixedly sleeved outside a rotary shaft I12, a gear 8 is fixedly sleeved outside the one-way bearing 9, one side of the gear 8 is provided with a rack 7, the gear 8 is meshed with the rack 7, one side of the rack 7 is fixedly provided with a hollow rod 5, a guide rod 6 is inserted in the hollow rod 5, the top of the hollow rod 5 is fixedly provided with a connecting block 4, the connecting block 4 is fixedly connected with an upper die 3, the hollow rod 5 is in sliding connection with the guide rod 6, the bottom of the guide rod 6 is fixedly connected with the top of a die holder 1, the hollow rod 5 is driven by the connecting block 4 to move along the guide rod 6 when the upper die 3 moves downwards, the hollow rod 5 moves to drive the rack 7 to move so as to enable the gear 8 to rotate anticlockwise, and because of the characteristics of the one-way bearing 9 (the one-way bearing can rotate freely in one direction and is locked in the other direction at the moment), the one-way bearing is also called an overrunning clutch, only according to different industries, the shape of a plurality of rollers or balls are contained in a metal shell of the one-way bearing, the one-way bearing can only roll in one direction, and a large resistance can be generated in the other direction, when the gear 8 moves downwards, and the gear 8 can not rotate anticlockwise, and rotate clockwise, and the gear 8 can rotate clockwise through the rotary shaft 8, and rotate clockwise, through the rotary shaft 8, and the one-way 9 can rotate more than the rotary shaft 8, through the one-way 9, and the one-way bearing 12 can rotate through the one-way 9, and rotate through the one rotary shaft, and the one 11, and rotate;

in order to achieve the purpose of stable rotation of the chain 14, the device is realized by adopting the following technical scheme: the two chain wheels 11 are meshed with the chain 14, the two chain wheels 11 are in driving connection through the chain 14, one end of a first rotating shaft 12 and one end of a second rotating shaft 13 are provided with a protection plate 10, the first rotating shaft 12 and the second rotating shaft 13 are connected with the protection plate 10 through bearings, the protection plate 10 is fixedly connected with a lower die 2 and a die core supporting seat 25 respectively, the other end of the first rotating shaft 12 is connected with one side wall of the lower die 2 through bearings, the other end of the second rotating shaft 13 is fixedly connected with one side wall of the die core supporting seat 25, the chain 14 is sleeved outside the two chain wheels 11, the two chain wheels 11 are supported through the first rotating shaft 12 and the second rotating shaft 13, the first rotating shaft 12 is supported with the protection plate 10 through the lower die 2, and the second rotating shaft 13 is supported with the protection plate 10 through the die core supporting seat 25, so that the chain 14 can stably rotate;

in order to achieve the purpose that only one positioning pin 20 protrudes out of the cover plate 24 at a time, the device is realized by adopting the following technical scheme: the trapezoidal chute 17 is in sliding connection with the trapezoidal plate 18, the top of the telescopic rod 19 is fixedly connected with the bottom of the cover plate 24, the cover plate 24 is fixedly connected with the mold core 22, the positioning pin 20 penetrates through the cover plate 24 and is in sliding connection with the cover plate 24, the top of the spring 21 is fixedly connected with the bottom of the cover plate 24, the bottom of the spring 21 is fixedly connected with the top of the trapezoidal plate 18, the chain 14 rotates to enable the connecting plate 16 to move along the chute 23 through the shifting plate 15, the connecting plate 16 moves to drive the trapezoidal chute 17 to move to the bottom of the next trapezoidal plate 18, the trapezoidal plate 18 separated from the trapezoidal chute 17 is pushed to descend through the elasticity of the spring 21, the positioning pin 20 extending out of the cover plate 24 is further enabled to be retracted into the cover plate 24, the trapezoidal plate 18 contacting with the trapezoidal chute 17 is enabled to move upwards through a trapezoidal inclined plane, when the trapezoidal chute 17 is positioned at the bottom of the trapezoidal plate 18 to support the trapezoidal plate 18, the new positioning pin 20 extends out of the cover plate 24, and the new spring 21 is enabled to shrink, namely the former trapezoidal plate 18 drives the positioning pin 20 to be retracted into the cover plate 24, and the new trapezoidal plate 18 drives the positioning pin 20 to extend out of the cover plate 24.

The application process of the utility model is as follows: when the utility model is used, the die is connected with a press machine, the upper die 3 is moved by the press machine to provide power, the lower die 2 is separated from the upper die 3 in punching, the square tube is sleeved outside the die core 22 and is simultaneously inserted into the lower die 2, the inserted square tube is positioned by the positioning pin 20 protruding the cover plate 24, thus the punching position is determined, the square tube is punched by pressing down the upper die 3, the square tube is protected by the die core 22 under the condition that the square tube is not deformed under pressure in the punching process, the punching precision and the product quality are ensured, the hollow rod 5 is driven to move along the guide rod 6 by the connecting block 4 when the upper die 3 moves down, the rack 7 is driven to move so that the gear 8 rotates anticlockwise by the movement of the hollow rod 5, due to the characteristic of the unidirectional bearing 9 (the unidirectional bearing can rotate freely in one direction, the one-way bearing is also called an overrunning clutch, and is named as a one-way bearing only according to different industries, a metal shell of the one-way bearing comprises a plurality of rolling shafts, rolling pins or rolling balls, the rolling seat is shaped to enable the rolling seat to roll in one direction only and generate great resistance in the other direction), the gear 8 rotates anticlockwise to enable the gear 8 to idle and not enable the first rotating shaft 12 to rotate through the one-way bearing 9, when the upper die 3 moves upwards in a return stroke, the rack 7 moves upwards to enable the gear 8 to rotate clockwise, at the moment, the one-way bearing 9 enables the gear 8 to drive the first rotating shaft 12 to rotate through the one-way bearing 9 due to large resistance of rotation, the first rotating shaft 12 rotates through an external sprocket 11 to enable a chain 14 to rotate, the rotation of the chain 14 enables a connecting plate 16 to move along a sliding groove 23 through a shifting plate 15, the connecting plate 16 moves to drive the trapezoid chute 17 to move to the bottom of the next trapezoid plate 18, the trapezoid plate 18 separated from the trapezoid chute 17 is pushed to descend through the elasticity of the spring 21, and then the locating pin 20 extending out of the cover plate 24 is retracted into the cover plate 24, the trapezoid plate 18 contacted with the trapezoid chute 17 enables the trapezoid plate 18 to move upwards through the trapezoid inclined plane, the trapezoid chute 17 is positioned at the bottom of the trapezoid plate 18 to support the trapezoid plate 18, when the trapezoid plate 18 moves upwards, the new locating pin 20 extends out of the cover plate 24, meanwhile the new spring 21 is enabled to shrink, namely the previous trapezoid plate 18 drives the locating pin 20 to retract into the cover plate 24, the new trapezoid plate 18 drives the locating pin 20 to extend out of the cover plate 24, the purpose of replacing the locating position of the square pipe is achieved, at the moment, the square pipe is pushed to move to enable the square pipe to be in contact with the new locating pin 20, the purpose of automatically replacing the locating pin 20 is achieved, the punching efficiency is not required to be frequently replaced in the punching process, and when the whole square pipe is ended, the poking plate 15 resets, so that the first locating pin 20 resets, and subsequent square pipes can be punched conveniently.

The above description is only of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model equivalent thereto using the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.

Claims (9)

1. Stamping die, including die holder (1), its characterized in that: the die comprises a die holder (1), and is characterized in that a lower die (2) and a die core supporting seat (25) are fixedly arranged at the top of the die holder (1), an upper die (3) is arranged at the top of the lower die (2), a die core (22) is fixedly arranged at one side of the die core supporting seat (25), one end of the die core (22) extends into the lower die (2), a sliding groove (23) is formed in the die core (22), and a positioning and adjusting mechanism is arranged in the die core (22);

the positioning adjusting mechanism comprises a connecting plate (16), the connecting plate (16) penetrates through a sliding groove (23) and is in sliding connection with the sliding groove (23), a trapezoid sliding groove (17) is formed in the top of the connecting plate (16), a positioning pin assembly is arranged at the top of the connecting plate (16), a shifting plate (15) is fixedly arranged at two ends of the connecting plate (16), two shifting plates (15) are respectively provided with a positioning pin adjusting assembly, the positioning pin assembly comprises a cover plate (24), a plurality of positioning pin units are inserted into the cover plate (24), each positioning pin unit comprises a trapezoid plate (18), positioning pins (20) and two telescopic rods (19) are fixedly arranged at the top of the trapezoid plate (18), springs (21) are sleeved outside the positioning pins (20), each positioning pin adjusting assembly comprises a chain (14), two chain wheels (11) are fixedly inserted into the chain wheels (11), one rotating shaft (12) and two rotating shafts (13) are respectively fixedly inserted into the chain wheels (11), and one rotating shaft (12) is externally connected with one driving unit.

2. A stamping die as defined in claim 1, wherein: the driving unit comprises a one-way bearing (9), the one-way bearing (9) is fixedly sleeved outside a rotating shaft I (12), a gear (8) is fixedly sleeved outside the one-way bearing (9), a rack (7) is arranged on one side of the gear (8), the gear (8) is meshed with the rack (7), a hollow rod (5) is fixedly arranged on one side of the rack (7), a guide rod (6) is inserted inside the hollow rod (5), a connecting block (4) is fixedly arranged at the top of the hollow rod (5), and the connecting block (4) is fixedly connected with an upper die (3).

3. A stamping die as defined in claim 2, wherein: the hollow rod (5) is in sliding connection with the guide rod (6), and the bottom of the guide rod (6) is fixedly connected with the top of the die holder (1).

4. A stamping die as defined in claim 1, wherein: both chain wheels (11) are meshed with a chain (14), and the two chain wheels (11) are in driving connection through the chain (14).

5. A stamping die as defined in claim 1, wherein: the novel mold is characterized in that a protection plate (10) is arranged at one end of a first rotating shaft (12) and one end of a second rotating shaft (13), the first rotating shaft (12) and the second rotating shaft (13) are connected with the protection plate (10) through bearings, the protection plate (10) is fixedly connected with a lower mold (2) and a mold core supporting seat (25) respectively, the other end of the first rotating shaft (12) is connected with one side wall of the lower mold (2) through bearings, and the other end of the second rotating shaft (13) is fixedly connected with one side wall of the mold core supporting seat (25).

6. A stamping die as defined in claim 1, wherein: the trapezoid sliding groove (17) is in sliding connection with the trapezoid plate (18).

7. A stamping die as defined in claim 1, wherein: the top of the telescopic rod (19) is fixedly connected with the bottom of the cover plate (24), and the cover plate (24) is fixedly connected with the mold core (22).

8. A stamping die as defined in claim 1, wherein: the locating pin (20) penetrates through the cover plate (24) and is connected with the cover plate (24) in a sliding mode.

9. A stamping die as defined in claim 1, wherein: the top of the spring (21) is fixedly connected with the bottom of the cover plate (24), and the bottom of the spring (21) is fixedly connected with the top of the trapezoid plate (18).