Mesh punching positioning die
Technical Field
The utility model relates to the technical field of positioning dies, in particular to a mesh punching positioning die.
Background
The positioning die is tool equipment for accurately processing and positioning products in industrial production, is widely applied to the fields of metal processing and plastic product molding manufacturing, and has the main functions of ensuring that the to-be-processed part of the products can be accurately positioned in the action area of processing equipment in the processing process, thereby ensuring the processing precision and consistency. The accuracy and stability of the positioning die directly affect the quality and performance of the final product.
In the existing mesh punching positioning die, in order to save manufacturing cost, a die one-time punching forming process is adopted, in the process, a plurality of holes with relatively close distances are required to be punched simultaneously by a punch head of the die, in the process of processing a metal sheet, when the hole spacing is relatively small, the punch head is stressed simultaneously in one punching process, the stress distribution is uneven, the part close to the edge of a knife edge can bear excessive stress, when the stress exceeds the bearing limit of punch head materials, the knife edge is easy to collapse, although the stability of the existing positioning die is improved by optimizing the integral structure of the die, the processing error caused by the loosening and the like of the die is avoided to a certain extent, the problem that the knife edge is easy to collapse caused by the close hole spacing still cannot be solved due to the stress characteristic of the punch head in one-time punching forming, the service life of the die is reduced, the production cost is increased, the processing quality of the product is possibly influenced, and the product rejection rate is increased, and the production efficiency and the benefit are influenced.
Disclosure of utility model
In order to make up for the defects, the utility model provides a mesh punching positioning die, which aims to improve the stress characteristic of a punching head during one-time punching forming in the prior art and can not solve the problem that a knife edge is easy to collapse due to the close hole distance.
In order to achieve the purpose, the mesh punching positioning die comprises an upper die holder and a lower die holder, wherein an upper base plate is arranged at the bottom of the upper die holder, an upper clamping plate is arranged at the bottom of the upper base plate, an upper stripper plate is arranged at the bottom of the upper clamping plate, a plurality of T punches are fixedly connected to the bottom of the upper clamping plate at equal intervals, a lower base plate is arranged at the top of the lower die holder, a lower die plate is arranged at the top of the lower base plate, two positioning blocks are respectively arranged on the left side and the right side of the top wall of the lower die plate, a plurality of lifting pin holes are respectively arranged on the left side and the right side of the top wall of the lower die holder and the top wall of the lower base plate, and the positioning blocks and the lifting pin holes are respectively arranged on the same vertical line.
Through the technical scheme, through the matching of the positioning block of the lower die plate and the floating pin in the floating pin hole, accurate positioning is realized in the product placement and stamping process, thus effectively avoiding mesh punching deviation caused by inaccurate positioning, simultaneously realizing complete processing of array meshes by utilizing a plurality of positioning areas of the lower die plate, improving the processing precision of products, ensuring the production efficiency and meeting the requirement of mass production.
As a further description of the above technical solution:
A plurality of sleeve head through holes are formed in the outer side of the top wall of the upper die base at equal intervals, a plurality of equal-height sleeves are fixedly installed in the sleeve head through holes, and the tail ends of the equal-height sleeves are respectively connected with the outer side of the top wall of the upper stripper plate in a threaded mode.
According to the technical scheme, the equal-height sleeve is arranged in the through hole of the sleeve head, the tail end of the equal-height sleeve is in threaded connection with the upper stripper plate, the distance between the upper stripper plate and the upper die holder is ensured to be consistent at each position, and the upper stripper plate can be always kept in a horizontal and stable state in the stamping process.
As a further description of the above technical solution:
Screw through holes are formed between adjacent through holes of the head of the sleeve, upper die screws are fixedly arranged in the screw through holes, and the tail ends of the upper die screws are respectively in threaded connection with the outer side of the top wall of the upper clamping plate.
According to the technical scheme, the upper die screw is arranged in the screw through hole, the tail end of the upper die screw is in threaded connection with the upper clamping plate, the upper clamping plate is tightly fixed below the upper die holder, the upper clamping plate and a T punch arranged on the upper clamping plate can be ensured not to loosen or displace during punching, the T punch can keep accurate positions and directions during downward movement for punching holes, and the precision of punching holes is effectively ensured.
As a further description of the above technical solution:
A plurality of spring holes are formed in the adjacent side of the upper base plate and the upper clamping plate at equal intervals, and tension springs are arranged in the spring holes.
According to the technical scheme, the tension spring is arranged in the spring hole on one side of the upper base plate adjacent to the upper clamp plate, and when the upper die holder drives the upper clamp plate and the T punch to move downwards in the punching process, the tension spring is compressed, part of punching energy is absorbed, and severe collision and abrasion between all parts of the die due to instant impact force are reduced.
As a further description of the above technical solution:
The left end and the right end of the bottom of the lower die holder are fixedly connected with lower foot pads, the left end and the right end of the lower foot pads are long, and the front end and the rear end of the lower foot pads are short.
Through the technical scheme, the lower pad is fixedly connected with the left end, the right end, the front end and the rear end of the bottom of the lower die holder, the long left end, the right end and the short front end provide a stable supporting foundation for the lower die holder together, so that the lower die part is prevented from shaking or tilting due to stress in the stamping process, and the stability of the overall structure of the die is ensured.
As a further description of the above technical solution:
The left end and the right end the top front and back end of pad foot down with the front end keep away from the one end mutually and all offered blind hole screw thread down, a plurality of the inside of blind hole screw thread is all fixed mounting to pad foot screw, a plurality of pad foot screw's end runs through the lower bolster and threaded connection is in the diapire outside of lower bolster.
According to the technical scheme, the foot pad screws are arranged in blind hole threads, the tail ends of the foot pad screws penetrate through the lower base plate and are connected with the lower die plate through threads, and the lower base plate and the lower die plate are firmly fixed on the lower die base.
As a further description of the above technical solution:
the front end and the rear end are respectively provided with a mounting hole at the adjacent end of the top of the lower foot pad, mounting screws are fixedly mounted in the two mounting holes, and the tail ends of the two mounting screws are in threaded connection with bottom equipment.
According to the technical scheme, the mounting screws are mounted in the mounting holes at the adjacent ends of the tops of the front and rear lower padding feet, the tail ends of the mounting screws are in threaded connection with bottom equipment, and the whole lower die part is firmly mounted on a workbench of the stamping equipment.
As a further description of the above technical solution:
and positioning grooves are formed in the left end and the right end of the front side of the lower template.
According to the technical scheme, the positioning grooves are formed in the left end and the right end of the front side of the lower die plate, and when a product is placed on the lower die plate, the positioning grooves are matched with an external positioning device, so that the position of the product in the front-rear direction can be accurately limited.
The utility model has the following beneficial effects:
1. According to the utility model, through the matching of the positioning block of the lower die plate and the floating pin in the floating pin hole, accurate positioning is realized in the product placement and stamping processes, thus effectively avoiding mesh punching deviation caused by inaccurate positioning, simultaneously, the complete processing of array meshes is realized by utilizing a plurality of positioning areas of the lower die plate, the processing precision of products is improved, the production efficiency is ensured, and the requirement of mass production is met.
2. According to the utility model, the upper die holder, the upper clamping plate and the upper stripper plate are cooperatively connected through the equal-height sleeve and the upper die screw, so that the relative positions of all the parts are ensured to be accurate, the T punch can stably punch meshes, meanwhile, the equal-height sleeve positions the upper stripper plate to press a product, and the tension spring assists in resetting, so that accurate and stable punching operation is realized, the production efficiency is improved, the problem of near hole distance is solved, and the product quality is ensured.
Drawings
FIG. 1 is a perspective view of a mesh punching positioning die provided by the utility model;
FIG. 2 is a structural exploded view of a mesh punching positioning die according to the present utility model;
FIG. 3 is a structural view showing a mesh-punching positioning die according to the present utility model;
FIG. 4 is an enlarged view of the structure of FIG. 3 at A;
fig. 5 is an enlarged view of the structure at B in fig. 3.
Legend description:
1. The device comprises an upper die holder, an upper base plate, an upper clamping plate, an upper stripper plate, a T punch, a lower die holder, a lower base plate, a lower die plate, a 9, a positioning block, a 10, a buoyancy lifting pin hole, a 11, a sleeve head through hole, a 12, a uniform height sleeve, a 13, a screw through hole, a 14, an upper die screw, a 15, a spring hole, a 16, a tension spring, a 17, a lower foot pad, a 18, blind hole threads, a 19, a foot pad screw, a 20, a mounting hole, a 21, a mounting screw, a 22 and a positioning groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, 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. 3, 4 and 5, the utility model provides an embodiment of a mesh punching positioning die, which comprises an upper die holder 1 and a lower die holder 6, wherein an upper base plate 2 is arranged at the bottom of the upper die holder 1, an upper clamping plate 3 is arranged at the bottom of the upper base plate 2, an upper stripper plate 4 is arranged at the bottom of the upper clamping plate 3, a plurality of T punches 5 are fixedly connected at the bottom of the upper clamping plate 3 at equal intervals, a lower base plate 7 is arranged at the top of the lower die holder 6, a lower die plate 8 is arranged at the top of the lower base plate 7, two positioning blocks 9 are respectively arranged on the left side and the right side of the top wall of the lower die plate 8, a plurality of lifting pin holes 10 are respectively arranged on the left side and the right side of the top walls of the lower die holder 6 and the lower base plate 7, and the plurality of lifting pin holes 10 are respectively on the same vertical line;
Specifically, the upper die holder 1 is arranged at the upper part of the die, the bottom of the upper die holder 1 is sequentially provided with an upper base plate 2, an upper clamping plate 3 and an upper stripper plate 4, the T-shaped punch 5 is fixedly connected at the bottom of the upper clamping plate 3 at equal intervals and used for punching holes, the lower die holder 6 is arranged at the lower part, the top of the lower die holder 6 is sequentially provided with a lower base plate 7 and a lower die plate 8, the left side and the right side of the top wall of the lower die holder 8 are provided with positioning blocks 9, the left side and the right side of the top wall of the lower die holder 6 are provided with lifting pin holes 10, the positioning blocks 9 and the lifting pin holes 10 are arranged on the same vertical line, the product is initially positioned through the positioning blocks 9 on the left side and the right side of the top wall of the lower die plate 8, the position of the product is ensured to be accurate in the left direction and the right direction, meanwhile, the lifting pin holes 10 are used for installing lifting pins can play an auxiliary positioning and ejecting the product in the punching process, the position of the product in the vertical direction is ensured to be stable, the upper die holder 1 moves downwards under the driving of external punching equipment during punching, the T punch 5 which drives the upper clamping plate 3 and the bottom thereof downwards together, the upper stripper plate 4 contacts with the surface of the product in the punching process, plays a role of pressing the product, prevents the product from displacement in the punching process, and the T punch 5 punches the mesh hole of the positioned product in the downwards moving process, because the product is positioned accurately and the die structure is stable, the problem that the knife edge is broken due to the close distance of holes in one-time punching can be effectively avoided, the quality of punching the mesh hole and the service life of the die are ensured, for the product area needing to be punched in an array, the product area needing to be punched in the mesh hole is punched by utilizing a plurality of positioning areas arranged on the lower die plate 8, each positioning area positions the product at the initial position manually, then pushes the product in sequence, sequentially performs punching for a plurality of times, punches once for each area, and punches four times in total, realizes the complete punching of the area of the product, the complete processing of the array meshes is ensured, and the processing precision and the production efficiency of products are improved.
Referring to fig. 2 and 3, a plurality of sleeve head through holes 11 are formed in the outer side of the top wall of the upper die holder 1 at equal intervals, a plurality of equal-height sleeves 12 are fixedly arranged in the inner parts of the plurality of sleeve head through holes 11, the tail ends of the plurality of equal-height sleeves 12 are respectively connected with the outer side of the top wall of the upper stripper plate 4 in a threaded manner, screw through holes 13 are formed between the adjacent parts of the plurality of sleeve head through holes 11, upper die screws 14 are fixedly arranged in the plurality of screw through holes 13, the tail ends of the plurality of upper die screws 14 are respectively connected with the outer side of the top wall of the upper clamping plate 3 in a threaded manner, a plurality of spring holes 15 are formed in the upper base plate 2 at equal intervals with the adjacent side of the upper clamping plate 3, and tension springs 16 are arranged in the plurality of spring holes 15;
Specifically, the upper die holder 1 is used as a basic supporting structure of an upper die part, a plurality of sleeve head through holes 11 are formed in the outer side of the top wall of the upper die part at equal intervals to play a role in positioning and connecting, a uniform-height sleeve 12 is fixedly arranged in the sleeve head through holes 11, the tail end of the uniform-height sleeve 12 is in threaded connection with the outer side of the top wall of the upper stripper plate 4, the relative position between the upper stripper plate 4 and the upper die holder 1 is ensured to be accurate and stable, the upper stripper plate 4 can keep accurate matching with the upper die holder 1 in the stamping process, effective compression of products is realized, upper die screws 14 are arranged in screw through holes 13 between adjacent sleeve head through holes 11, the tail end of each upper die screw 14 is in threaded connection with the outer side of the top wall of an upper clamping plate 3, the upper clamping plate 3 is firmly fixed below the upper die holder 1 in a connecting mode, the stability of the upper clamping plate 3 and a T punch 5 arranged on the upper clamping plate 3 in the stamping process is ensured, and displacement caused by stress is prevented, thereby ensuring the precision of punching holes, tension springs 16 are arranged in a plurality of spring holes 15 formed on one side of the upper base plate 2 adjacent to the upper clamp plate 3 at equal intervals, when the upper clamp plate 3 and the T punch 5 are driven to move downwards by the upper die base 1 in the punching process, the tension springs 16 are compressed, part of punching energy is absorbed in the compression process of the tension springs 16, the buffering effect is achieved, the abrasion between all parts of the die due to instant impact force is reduced, meanwhile, after the punching is finished, the rebound force of the tension springs 16 is helpful for the upper die part to quickly restore to the initial position, the efficiency of the punching operation is improved, the upper clamp plate 3 and the T punch 5 are driven to stably move downwards by the connection of an equal-height sleeve 12 and an upper die screw 14, the upper stripper plate 4 compresses products under the positioning effect of the equal-height sleeve 12, the tension springs 16 provide buffering and resetting assistance in the punching process, ensure that the operation of punching holes can be accurately and stably carried out every time, effectively solve the problems of easy knife edge collapse and the like caused by near hole distance when the product array punches holes, and ensure the product quality and the production efficiency.
Referring to fig. 1, 2 and 3, the left and right ends and the front and rear ends of the bottom of the lower die holder 6 are fixedly connected with lower padding feet 17, the left and right lower padding feet 17 are long, the front and rear lower padding feet 17 are short, blind hole threads 18 are formed at the front and rear ends of the top of the left and right lower padding feet 17 and at the far end from the top of the front and rear lower padding feet 17, foot padding screws 19 are fixedly mounted in the blind hole threads 18, the tail ends of the foot padding screws 19 penetrate through the lower padding plate 7 and are in threaded connection with the outer side of the bottom wall of the lower die plate 8, mounting holes 20 are formed at the adjacent ends of the top of the front and rear lower padding feet 17, mounting screws 21 are fixedly mounted in the two mounting holes 20, the tail ends of the two mounting screws 21 are in threaded connection with bottom equipment, and positioning grooves 22 are formed at the left and right ends of the front side of the lower die plate 8;
Specifically, the left end, the right end and the front end of the bottom of the lower die holder 6 are respectively and fixedly connected with the lower foot 17, wherein the lower foot 17 at the left end and the right end is long, the front end and the rear end are short, a supporting foundation is provided for the whole lower die part, the fact that the die cannot shake or deviate due to stress in the working process is ensured, the left end and the right end of the long lower foot 17 mainly bear larger transverse supporting force, the front end and the rear end of the short lower foot 17 assist in stabilizing the front and the rear direction, the overall stability of the lower die is jointly maintained, foot screws 19 are fixedly installed in blind hole threads 18 at the far away end of the top of the left end lower foot 17 and the top of the front end lower foot 17, the tail ends of the foot screws 19 penetrate through the lower foot 7 and are in threaded connection with the outer side of the bottom wall of the lower die plate 8, the lower foot 7 and the lower die plate 8 are tightly fixed on the lower die holder 6 in a stable overall structure through the connecting mode, the fastening function of the foot-pad screws 19 can effectively prevent the lower backing plate 7 and the lower template 8 from loosening in the stamping process, ensure the precision and reliability of the die, fixedly install the installation screws 21 in the installation holes 20 at the adjacent ends of the tops of the front and rear lower foot pads 17, the tail ends of the installation screws 21 are in threaded connection with bottom equipment, the whole lower die part can be firmly installed on a workbench of the stamping equipment, the stability of the die in working is further enhanced, the stamping operation can be accurately ensured, the positioning grooves 22 formed at the left and right ends of the front side of the lower template 8 play an important positioning role in the working flow of the die, the positioning grooves 22 can be matched with an external positioning device when the product is placed on the lower template 8 for punching, ensure the accurate position of the product in the front and rear directions, and help to improve the position precision of punching holes of the product, the processing quality of the product is guaranteed, the mesh positions of stamping every time can meet the design requirement, thereby realizing efficient and accurate production, the positioning groove 22 of the lower template 8 ensures the positioning accuracy of the product in the stamping process, the product can be stably positioned in the correct position in the mesh stamping process, the die can accurately perform stamping operation, the mesh stamping quality problem caused by shaking of the die or inaccurate positioning of the product is effectively avoided, and the qualification rate and the production efficiency of the product are improved.
Working principle: the upper die holder 1 is arranged at the upper part of the die, the bottom of the upper die holder 1 is sequentially provided with an upper base plate 2, an upper clamping plate 3 and an upper stripper plate 4, the T-shaped punch 5 is fixedly connected at the bottom of the upper clamping plate 3 at equal intervals and used for punching holes, the lower die holder 6 is arranged at the lower part, the top of the lower die holder is sequentially provided with a lower base plate 7 and a lower die plate 8, the left side and the right side of the top wall of the lower die holder 8 are provided with positioning blocks 9, the left side and the right side of the top wall of the lower die holder 6 and the top wall of the lower base plate 7 are provided with lifting pin holes 10, the positioning blocks 9 and the lifting pin holes 10 are arranged on the same vertical line, a product is placed on the lower die plate 8, the positioning blocks 9 on the left side and the right side of the top wall of the lower die plate 8 are used for preliminary positioning, the product is ensured to be accurate in the left direction and the right direction, meanwhile, the lifting pin 10 is used for installing lifting pins in the lifting pin can play the roles of assisting positioning and ejecting the product in the punching process, the position stability of the product in the vertical direction is ensured, the upper die holder 1 moves downwards under the drive of external stamping equipment during stamping, the upper clamping plate 3 and the T punches 5 at the bottom of the upper clamping plate are driven to move downwards together, the upper stripper plate 4 is in contact with the surface of a product in the stamping process, the effect of pressing the product is achieved, the product is prevented from being displaced during stamping, the T punches 5 punch holes on the positioned product in the downward movement process, the problem that the knife edge is broken due to the fact that the hole pitch is near in one-time stamping can be effectively avoided due to accurate positioning of the product, the quality of punching holes and the service life of the die are guaranteed, for the product area needing array punching holes, the product is positioned at an initial position manually by utilizing a plurality of positioning areas arranged on the lower die plate 8, then the product is sequentially pushed for stamping for a plurality of times, and each area is stamped four times.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.