CN219703380U - Bolt and screw cold extrusion forming die - Google Patents

Abstract

The utility model discloses a bolt and screw cold extrusion forming die which comprises a bottom plate, wherein a top plate is arranged at the top of the bottom plate, a lower die is arranged at the top of the bottom plate, dampers are fixedly arranged at the front end and the rear end of the bottom of the top plate close to two sides, mounting plates are fixedly arranged at the bottoms of the four dampers, an upper die is arranged at the bottom of each mounting plate, and a rectangular groove is formed in the center of the bottom of the top plate. This bolt screw cold extrusion forming die, through the cooperation of attenuator, spring, buffer block, fly leaf and movable connecting rod, when the last mould carries out cold extrusion to the bolt screw blank in the bed die, the mounting panel upwards moves and extrudees four attenuators, moves two fly leaves in opposite directions through the movable connecting rod to the fly leaf compresses the spring in the recess through the buffer block, buffers when making last mould and bed die contact through spring and attenuator, avoids this forming die structure wearing and tearing.

Description

Bolt and screw cold extrusion forming die

Technical Field

The utility model relates to the technical field of cold extrusion forming dies, in particular to a bolt and screw cold extrusion forming die.

Background

The bolt is a cylindrical threaded fastener which is matched with the nut in the use process, the connection mode is called bolt connection, the bolt is mainly used for connecting two parts with through holes, the bolt is a tool for fastening a workpiece of the object in a circulating and progressive mode by utilizing the circular rotation and friction force of the inclined plane of the object, and the bolt are subjected to cold extrusion molding of blanks through a die in the production and processing process.

Cold extrusion forming die extrudes the blank in the lower mould through last mould, makes the blank shaping, however, because current forming die most lacks buffer structure at extruded in-process to after long-time use, go up the mould and cause certain wearing and tearing easily when the lower mould contacts, thereby shortened forming die's life, reduced machining efficiency, can't satisfy market demand. Therefore, we propose a cold extrusion forming die for bolt and screw.

Disclosure of Invention

The utility model aims to provide a cold extrusion forming die for bolt and screw, which aims to solve the problems that most of existing forming dies in the prior art lack of a buffer structure in the extrusion process, so that after long-time use, the upper die is easy to cause certain abrasion when being contacted with the lower die, the service life of the forming die is shortened, the processing efficiency is reduced, and the market demand cannot be met.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bolt screw cold extrusion forming die, includes the bottom plate, the top of bottom plate is provided with the roof, the top of bottom plate is provided with the bed die, the front end that the roof bottom leans on both sides and the equal fixed mounting of rear end have the attenuator, the bottom fixed mounting of four attenuators has the mounting panel, the bottom of mounting panel is provided with the mould, rectangular channel has been seted up at the center of roof bottom, the recess has all been seted up to the bottom position of the both sides in the rectangular channel, the equal fixedly connected with spring of one side opposite in two recesses, the equal fixedly connected with buffer block of one end opposite of two springs, the outside to two recesses is run through respectively to one side opposite of two buffer blocks, the equal fixedly connected with fly leaf in one side opposite of two fly leaves leans on central point position and lean on the equal fixedly connected with second axle seat in bottom position, the equal fixedly connected with first axle bed in both sides position and mounting panel top lean on the both sides position at the top at rectangular channel top, the inside of rectangular channel is provided with four movable connecting rods.

Compared with the prior art, the utility model has the beneficial effects that:

this bolt screw cold extrusion forming die, through the cooperation of attenuator, a spring, the buffer block, fly leaf and movable connecting rod, when the last mould carries out cold extrusion to the bolt screw blank in the bed die, the mounting panel upwards moves and extrudees four attenuator, remove two fly leaves in opposite directions through movable connecting rod, thereby the fly leaf passes through the spring compression in the buffer block with the recess, buffer when making last mould and bed die contact through spring and attenuator, avoid this forming die structure wearing and tearing, forming die's life has been prolonged, market demand has been satisfied.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of the FIG. 1A;

FIG. 3 is a perspective view of the structure of the movable plate of the present utility model;

fig. 4 is a front view of the structure of the present utility model.

In the figure: 1. a bottom plate; 2. a top plate; 3. a lower die; 4. a damper; 5. a mounting plate; 6. rectangular grooves; 7. a groove; 8. a spring; 9. a buffer block; 10. a movable plate; 11. a first shaft seat; 12. a second axle seat; 13. a movable connecting rod; 14. a slide bar; 15. an upper die; 16. a guide sleeve; 17. and a guide post.

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. 1-4, the present utility model provides a technical solution: the utility model provides a bolt screw cold extrusion forming die, is close to front end position and is close to rear end position at the both sides top of rectangular channel 6 inner wall and all fixed mounting have slide bar 14, and four slide bars 14 opposite one side that both sides set up run through respectively to the outside of fly leaf 10, and one side fixed mounting of slide bar 14 has the stopper, and fly leaf 10 can carry out stable removal, restricts the travel of fly leaf 10 simultaneously.

The four movable connecting rods 13 are arranged in a diamond structure, one ends of the four movable connecting rods 13 are respectively and movably connected with the four first shaft seats 11 through four shaft rods, the other ends of the four movable connecting rods 13 are respectively and movably connected with the four second shaft seats 12 through four shaft rods, and when the mounting plate 5 moves upwards, the four movable connecting rods 13 can move to two sides, so that the two movable plates 10 are respectively pushed to move back to back.

The top of the top plate 2 is fixedly provided with guide sleeves 16 at the positions close to four corners, the bottoms of the four guide sleeves 16 penetrate through the outer part of the top plate 2, the tops of the bottom plate 1 are fixedly provided with guide posts 17 at the positions close to four corners, the tops of the four guide posts 17 penetrate through the inner parts of the four guide sleeves 16 and are in contact with the inner walls of the guide sleeves 16 respectively, and the lower die 3 can play a role in guiding when moving downwards.

The inside of recess 7 and buffer block 9 are rectangular structure setting, and the outer wall of buffer block 9 and the inner wall sliding contact of recess 7.

The upper die 15 is fixedly connected with the bottom center of the mounting plate 5 through a screw, and the lower die 3 is fixedly connected with the top center of the bottom plate 1 through a screw, so that the upper die 15 or the lower die 3 can be conveniently assembled and disassembled.

The bottom of bottom plate 1 both sides all fixedly connected with connecting plate, the mounting hole has all been seted up to front end and the rear end at connecting plate top center, is convenient for install the dismantlement to this forming die.

Working principle: the screw bolt blank is placed into a forming cavity of the lower die 3, the top plate 2 is driven to move downwards through the air cylinder, the upper die 15 moves downwards and extrudes the blank, in the extrusion process, the upper die 15 moves upwards through the mounting plate 5, the mounting plate 5 compresses four dampers 4 at the top, meanwhile, two ends of a diamond-shaped structure formed by four movable connecting rods 13 are pulled up, so that two movable plates 10 in the rectangular groove 6 are pushed to move oppositely at the same time, and the two movable plates 10 compress springs 8 in the grooves 7 through the buffer blocks 9, so that the upper die 15 is buffered when contacting with the lower die 3.

To sum up: this bolt screw cold extrusion forming die, through the cooperation of attenuator 4, spring 8, buffer block 9, fly leaf 10 and movable connecting rod 13, when last mould 15 carries out cold extrusion to the bolt screw blank in the bed die 3, mounting panel 5 upwards moves and extrudees four attenuator 4, move two fly leaves 10 back to back through movable connecting rod 13, thereby fly leaf 10 compresses spring 8 in with recess 7 through buffer block 9, cushion when making last mould 15 and bed die 3 contact through spring 8 and attenuator 4, avoid this forming die structure wearing and tearing, prolonged forming die's life, market demand has been satisfied.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a bolt screw cold extrusion forming die, includes bottom plate (1), its characterized in that: the top of bottom plate (1) is provided with roof (2), the top of bottom plate (1) is provided with bed die (3), front end and the equal fixed mounting of rear end of both sides are leaned on in roof (2) bottom have attenuator (4), and the bottom fixed mounting of four attenuator (4) has mounting panel (5), the bottom of mounting panel (5) is provided with mould (15), rectangular channel (6) have been seted up at the center of roof (2) bottom, rectangular channel (6) are all seted up near the bottom position of both sides in rectangular channel (6), and the equal fixedly connected with spring (8) of one side opposite in two recess (7), the equal fixedly connected with buffer block (9) of one end opposite of two spring (8), the outside to two recess (7) is run through respectively to one side opposite of two buffer block (9), and two movable plate (10) are relative one side lean on central point and lean on bottom position equal fixedly connected with second axle seat (12), rectangular channel (6) are interior both sides of the equal fixedly connected with connecting rod (5) of one side opposite side in two recess (6), the inside position of connecting rod (5) is leaned on the inside of a rectangular channel (6).

2. The cold extrusion die for bolt and screw according to claim 1, wherein: slide bars (14) are fixedly arranged at the front end position and the rear end position of the tops of two sides of the inner wall of the rectangular groove (6), one side, opposite to the four slide bars (14), of each side is respectively penetrated to the outside of the movable plate (10), and a limiting block is fixedly arranged on one side of each slide bar (14).

3. The cold extrusion die for bolt and screw according to claim 1, wherein: the four movable connecting rods (13) are arranged in a diamond structure, one ends of the four movable connecting rods (13) are respectively and movably connected with the four first shaft seats (11) through four shaft rods, and the other ends of the four movable connecting rods (13) are respectively and movably connected with the four second shaft seats (12) through four shaft rods.

4. The cold extrusion die for bolt and screw according to claim 1, wherein: the top of the top plate (2) is fixedly provided with guide sleeves (16) at four corners, the bottoms of the four guide sleeves (16) penetrate through the outer part of the top plate (2), the tops of the bottom plate (1) are fixedly provided with guide posts (17) at four corners, and the tops of the four guide posts (17) penetrate through the inner parts of the four guide sleeves (16) and are in contact with the inner wall of the guide sleeves (16).

5. The cold extrusion die for bolt and screw according to claim 1, wherein: the inside of recess (7) and buffer block (9) are rectangular structure setting, the outer wall of buffer block (9) and the inner wall sliding contact of recess (7).

6. The cold extrusion die for bolt and screw according to claim 1, wherein: the upper die (15) is fixedly connected with the bottom center of the mounting plate (5) through a screw, and the lower die (3) is fixedly connected with the top center of the bottom plate (1) through a screw.

7. The cold extrusion die for bolt and screw according to claim 1, wherein: the bottoms of two sides of the bottom plate (1) are fixedly connected with connecting plates, and the front end and the rear end of the center of the top of each connecting plate are provided with mounting holes.