CN116197342A

CN116197342A - Stainless steel bolt cold header

Info

Publication number: CN116197342A
Application number: CN202310381364.8A
Authority: CN
Inventors: 张建俊
Original assignee: Xinghua Xinqianglong Stainless Steel Products Co ltd
Current assignee: Xinghua Xinqianglong Stainless Steel Products Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-02

Abstract

The application relates to the technical field of cold heading machines and discloses a stainless steel bolt cold heading machine, the on-line screen storage device comprises a base, the middle part of base top surface rotates installs cold pressing mould, the standing groove has been seted up to cold pressing mould's inside, the bolt has been placed to the inside of standing groove, the spout has been seted up to cold pressing mould's inside in the downside of standing groove, the bottom fixedly connected with gasbag of spout, the top surface fixedly connected with slide of gasbag, the bottom fixedly connected with spring of standing groove, the cylinder chamber has been seted up at the inside of cold pressing mould in the middle part of being located the standing groove, the inside sliding connection in cylinder chamber has the elastic board, logical groove has been seted up to the inside of elastic board. After the bolt is processed, the potential energy of the spring is released, so that the sliding plate is driven to move upwards to drive the screw rod to move upwards, and the air bag screwed into the spiral shape can be stretched to generate negative pressure to act on the bottom of the bolt, so that the bolt is prevented from being ejected by the transient potential energy of the spring and the collision is prevented, and the quality of a finished bolt product is improved.

Description

Stainless steel bolt cold header

Technical Field

The application relates to the technical field of cold heading machines, in particular to a stainless steel bolt cold heading machine.

Background

The cold header is special equipment for mass production of bolts, nuts and other fasteners, and the principle is that plastic deformation of metal is utilized, and certain pressure is applied to a metal blank at normal temperature, so that the blank generates plastic deformation in a die cavity to form a finished bolt.

The current cold header mainly utilizes numerical control device control stamping device to move down fast and strikes on the billet in the cold pressing die in the use, make the billet rapid prototyping, the bolt after the shaping is located the cold pressing die, be difficult to take, and can set up spring and springboard in the standing groove in order to be convenient for take of bolt in the current cold pressing die, but because stamping device's fast stamping for the potential energy of its spring can release fast, thereby cause the bolt to be jacked up by the spring, thereby fly out the standing groove, make the bolt drop, the condition of colliding with appears in the bolt that leads to already shaping, influence the quality, and because the rapid prototyping of billet, make the internal energy of billet also can fast increasing, can send out and scald after the bolt shaping, and need operating personnel to take with the hand after the bolt shaping, there is certain potential safety hazard.

Disclosure of Invention

The application provides a stainless steel bolt cold header, possesses can make the bolt by slow jack-up, prevents that the bolt from being popped out the standing groove, can cool down the bolt after the shaping, reduces the potential safety hazard when operating personnel takes the bolt and improves the advantage of stability when the billet shaping for solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the present application adopts the following technical scheme: the utility model provides a stainless steel bolt cold header, includes the base, the middle part of base top surface rotates installs cold pressing die, the standing groove has been seted up to cold pressing die's inside, the bolt has been placed to the inside of standing groove, the spout has been seted up to cold pressing die's inside is located the downside of standing groove, the bottom fixedly connected with gasbag of spout, the top surface fixedly connected with slide of gasbag, the bottom fixedly connected with spring of standing groove, the inside of cold pressing die is located the standing groove middle part and has been seted up the cylinder chamber, the inside sliding connection in cylinder chamber has the springboard, logical groove has been seted up to the inside of springboard.

Further, the middle part of springboard bottom surface is connected with the screw rod through the bearing rotation, the air groove has been seted up to the inside of screw rod, the spread groove has been seted up to the inside that is located the downside in cylinder chamber of cold pressing mould.

Further, the side of slide has the ball through draw-in groove swing joint, the bottom of screw rod and the middle part fixed connection of slide top surface, the inside of cold pressing mould is located between spout and the standing groove and has offered the screw thread groove that supplies the screw rod activity, the lower part opening in air groove runs through the slide and communicates with each other with the top of gasbag.

Further, the top of spring and the bottom surface middle part fixed connection of springboard, the surface and the inside wall sliding contact of cylinder chamber of springboard.

Further, the through groove is arranged as a cross groove, a transverse groove of the through groove is communicated with the connecting groove when the spring plate is positioned at the bottom of the cylindrical cavity, and a vertical groove of the through groove corresponds to the air groove and is communicated when the spring plate is positioned at the bottom of the cylindrical cavity.

Further, the movable groove is formed in the upper side of the cylindrical cavity in the cold pressing mold, a clamping block is fixedly connected to the middle of the inner portion of the movable groove, an inclined block is movably sleeved on the outer side of the clamping block in the inner portion of the movable groove, and a connecting rod is fixedly connected to the middle of the bottom surface of the inclined block.

Further, the surface of fixture block sets up to the inclined plane, the inclination of inclined plane is the same with the inclination of fixture block surface to the inboard inclined plane of sloping, the fixture block is made for rubber materials, the hole that supplies the bolt to pass is seted up at the middle part of fixture block.

Further, the top of connecting rod and the bottom surface fixed connection of sloping block, the lower part of connecting rod stretches into the inside of movable groove and fixed connection in the top surface of springboard, the inside of cold pressing mould is located between cylinder chamber and the movable groove and has offered the hole that supplies the connecting rod to run through.

According to the stainless steel bolt cold header provided by the application, through designing the chute, the air bag, the sliding plate, the spring plate and the screw rod, the steel bar in the placing groove is extruded by the stamping device, so that the steel bar drives the spring plate to move downwards, the spring plate drives the screw rod to move downwards, the screw rod rotates when moving downwards by utilizing the screw thread, the screw rod drives the sliding plate to move downwards and rotate, the air bag is driven to rotate by the sliding plate to twist, the air bag is screwed into a spiral shape, meanwhile, the air in the air bag is extruded and is discharged through the air groove and the connecting groove, the discharged air acts on the upper part of the placing groove, and therefore the head of the bolt with increased internal energy is cooled, and potential safety hazards are reduced;

secondly, after the bolt is processed, the potential energy of the spring is released, so that the sliding plate is promoted to move upwards and drive the screw rod to rotate reversely, the air bag screwed into the spiral shape at the moment is stretched, negative pressure is generated, and the negative pressure directly acts on the bottom of the bolt by utilizing the connection of the air groove, so that the bolt is prevented from being ejected by the instantaneous potential energy of the spring, the situation that the bolt is knocked after being ejected is avoided, and the quality of a finished bolt product is improved;

along with the upward movement of the sliding plate, the cavity in the cylindrical cavity, which is positioned at the lower side of the sliding plate, generates negative pressure, and is connected by the connecting groove, so that the negative pressure acts on the upper side of the placing groove, and the bolt at the moment is pushed by the spring to move upwards, so that the negative pressure acts in the cavity between the placing groove and the bolt head, and the bolt is adsorbed by the negative pressure, so that potential energy of the spring is buffered, the bolt is further prevented from being ejected, and the quality of the bolt is promoted;

in the process of sliding plate downward movement, the sliding plate drives the connecting rod to move downward, so that the connecting rod drives the inclined block to move downward, the inclined surface of the inclined block is contacted with the clamping block, the clamping block is promoted to shrink gradually, the steel bars in the placing grooves are fixed, the shaking of the steel bars in the forming process is effectively prevented, the forming quality of the screw is improved, and the stability of the bolt during processing is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the internal structure of a cold pressing die of the invention;

FIG. 3 is a schematic view of the inner structure of the chute of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the cooperation structure of the spring plate and the inclined block according to the present invention;

fig. 5 is a schematic view of the internal structure of the spring plate according to the present invention.

Reference numerals: 1. a base; 2. a carriage; 3. a punching device; 4. cold pressing a die; 41. a chute; 42. an air bag; 43. a slide plate; 5. a placement groove; 51. a spring; 52. a cylindrical cavity; 53. a spring plate; 531. a through groove; 54. a screw; 541. an air tank; 55. a connecting groove; 56. a movable groove; 57. a clamping block; 58. a sloping block; 59. a connecting rod; 6. and (5) a bolt.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Embodiment one: referring to fig. 1-5, a stainless steel bolt cold header comprises a base 1, wherein a sliding frame 2 is fixedly installed on the left side of the top surface of the base 1, a stamping device 3 is movably installed on the outer surface of the sliding frame 2 through a sliding rail and a mounting plate, a cold pressing die 4 is rotatably installed in the middle of the top surface of the base 1, a placing groove 5 is formed in the cold pressing die 4, and a bolt 6 is placed in the placing groove 5.

Referring to fig. 1-5, a chute 41 is formed in the cold pressing mold 4, a gas bag 42 is fixedly connected to the bottom of the chute 41, a sliding plate 43 is fixedly connected to the top surface of the gas bag 42, a spring 51 is fixedly connected to the bottom of the chute 5, a cylindrical cavity 52 is formed in the middle of the chute 5, a spring plate 53 is slidingly connected to the inside of the cylindrical cavity 52, a through groove 531 is formed in the inside of the spring plate 53, a screw 54 is rotatably connected to the middle of the bottom surface of the spring plate 53 through a bearing, a gas groove 541 is formed in the inside of the screw 54, and a connecting groove 55 is formed in the inside of the cold pressing mold 4, which is located at the lower side of the cylindrical cavity 52.

Referring to fig. 2 and 3, the side surface of the sliding plate 43 is movably connected with balls through a clamping groove, the bottom end of a screw 54 is fixedly connected with the middle part of the top surface of the sliding plate 43, a thread groove for the screw 54 to move is formed between the sliding groove 41 and the placing groove 5 in the cold pressing mold 4, the screw 54 is convenient to rotate in cooperation with the thread groove when moving, the sliding plate 43 is driven to move up and down by utilizing the up-and-down movement of the screw 54, and the lower opening of the air groove 541 penetrates through the sliding plate 43 and is communicated with the top of the air bag 42, so that the air in the air bag 42 is convenient to transmit;

referring to fig. 2 and 3, the top of the spring 51 is fixedly connected with the middle of the bottom surface of the spring plate 53, and the outer surface of the spring plate 53 is in sliding contact with the inner side wall of the cylindrical cavity 52, so that the pressure of gas in the cylindrical cavity 52 can be changed when the spring plate 53 moves up and down in the cylindrical cavity 52;

referring to fig. 5, the through groove 531 is configured as a cross groove, a horizontal groove of the through groove 531 is connected with the connecting groove 55 when the elastic plate 53 is located at the bottom of the cylindrical cavity 52, and a vertical groove of the through groove 531 corresponds to the air groove 541 and is connected when the elastic plate 53 is located at the bottom of the cylindrical cavity 52, so as to ensure that the negative pressure generated in the air bag 42 can act on the bottom of the bolt 6;

referring to fig. 1-5, when the stamping device 3 stamps the steel bar in the placement groove 5, the steel bar is pushed down by the stamping device 3 to drive the spring plate 53 to move downwards, so that the through groove 531 on the spring plate 53 is communicated with the connecting groove 55, and the spring plate 53 moves downwards, so that the screw 54 is matched with the threaded groove between the sliding groove 41 and the placement groove 5, the screw 54 is driven to rotate, and simultaneously, the moving downwards and the rotating of the screw 54 drive the sliding plate 43 to move downwards and rotate, so that the air bag 42 is extruded and screwed into a spiral shape by the rotation of the sliding plate 43, so that the air in the air bag 42 enters the connecting groove 55 through the air groove 541 and the through groove 531 and finally enters the upper side of the placement groove 5, and the head of the forming bolt 6 is cooled;

secondly, after the bolt 6 is formed, along with the rotation of the cold pressing die 4, the pressure applied by the stamping device 3 is withdrawn, the bolt 6 is upwards moved under the action of the potential energy of the spring 51, the spring plate 53 is upwards moved, the screw 54 is reversely rotated, the air bag 42 is enabled to be restored to the original state from the spiral state, the potential energy of the spring 51 cannot be instantaneously released by utilizing the restoration of the air bag 42, the bolt 6 is prevented from being ejected out of the placing groove due to the fact that the potential energy of the spring 51 is instantaneously released, the air bag 42 is stretched along with the upwards movement of the screw 54, negative pressure is generated inside the air bag 42, and the negative pressure acts on the bottom of the bolt 6 by utilizing the cooperation of the air groove 541 and the through groove 531, so that the bolt 6 is adsorbed, the bolt 6 is further prevented from being ejected out, the bolt 6 is slowly jacked up by the spring plate 53, the bump caused by the falling of the bolt 6 is effectively prevented, and the quality of the bolt 6 is improved.

Embodiment two: referring to fig. 1-5, a movable slot 56 is formed in the cold pressing mold 4 and located on the upper side of the cylindrical cavity 52, a clamping block 57 is fixedly connected to the middle portion of the movable slot 56, an inclined block 58 is movably sleeved on the outer side of the clamping block 57 in the movable slot 56, and a connecting rod 59 is fixedly connected to the middle portion of the bottom surface of the inclined block 58.

Referring to fig. 2-4, the outer surface of the clamping block 57 is provided with an inclined surface, the inclination of the inclined surface at the inner side of the inclined block 58 is the same as the inclination of the outer surface of the clamping block 57, the clamping block 57 is made of a rubber material, a hole for the bolt 6 to pass through is formed in the middle of the clamping block 57, the bolt 6 is clamped after the clamping block 57 is extruded by the inclined block 58, and the stability of the bolt 6 is improved;

referring to fig. 2-4, the top of the connecting rod 59 is fixedly connected with the bottom surface of the inclined block 58, the lower part of the connecting rod 59 extends into the movable groove 56 and is fixedly connected with the top surface of the spring plate 53, a hole for the connecting rod 59 to penetrate is formed between the cylindrical cavity 52 and the movable groove 56 in the cold pressing mold 4, and the inclined block 58 is driven to move up and down by the connecting rod 59 when the spring plate 53 moves up and down;

referring to fig. 1-5, when the spring plate 53 moves down, the inclined block 58 is driven by the connecting rod 59 to move down in the movable groove 56, so that the inclined surface on the inner side of the inclined block 58 is matched with the inclined surface on the outer side of the clamping block 57, the clamping block 57 is driven to clamp the lower portion of the bolt 6, a gap between the bolt 6 and the placing groove 5 is contracted, the position of the bolt 6 is driven to be fixed, the stability of the bolt 6 during processing is improved, shaking of the bolt 6 during processing is effectively prevented, and the quality of a finished bolt 6 is improved;

when the spring plate 53 is pushed up by the spring 51, the side surface of the spring plate 53 contacts with the inner side wall of the cylindrical cavity 52, so that the cavity in the cylindrical cavity 52 at the lower side of the spring plate 53 generates negative pressure, and the lower opening of the connecting groove 55 is exposed in the cylindrical cavity 52 at the lower side of the spring plate 53, so that the negative pressure in the cylindrical cavity 52 acts on the connecting groove 55, and meanwhile, the bolt 6 moves up due to the pushing of the spring plate 53, but the bolt 6 does not extend out of the placing groove 5 at the moment, so that the negative pressure at the connecting groove 55 acts in the cavity between the head of the bolt 6 and the placing groove 5, the bolt 6 is adsorbed again, the probability of further promoting the bolt 6 to be ejected is reduced, potential energy buffering of the spring 51 is promoted, the bolt 6 is effectively prevented from being ejected, and the quality of a finished bolt 6 is improved.

Claims

1. The utility model provides a stainless steel bolt cold header, includes base (1), cold pressing mould (4) are installed in the middle part rotation of base (1) top surface, standing groove (5) have been seted up to the inside of cold pressing mould (4), bolt (6) have been placed to the inside of standing groove (5), its characterized in that: the inside of cold pressing mould (4) is located the downside of standing groove (5) and has been seted up spout (41), the bottom fixedly connected with gasbag (42) of spout (41), the top surface fixedly connected with slide (43) of gasbag (42), the bottom fixedly connected with spring (51) of standing groove (5), cylindrical cavity (52) have been seted up at the inside of cold pressing mould (4) in the middle part of standing groove (5), the inside sliding connection of cylindrical cavity (52) has springboard (53), logical groove (531) have been seted up to the inside of springboard (53).

2. The cold header for stainless steel bolts according to claim 1, wherein a screw rod (54) is rotatably connected to the middle part of the bottom surface of the spring plate (53) through a bearing, an air groove (541) is formed in the screw rod (54), and a connecting groove (55) is formed in the cold pressing die (4) and located on the lower side of the cylindrical cavity (52).

3. The cold header for stainless steel bolts according to claim 2, wherein the side surface of the sliding plate (43) is movably connected with balls through clamping grooves, the bottom end of the screw rod (54) is fixedly connected with the middle part of the top surface of the sliding plate (43), a thread groove for the screw rod (54) to move is formed between the sliding groove (41) and the placing groove (5) in the cold pressing mold (4), and the lower opening of the air groove (541) penetrates through the sliding plate (43) and is communicated with the top of the air bag (42).

4. A stainless steel bolt cold header according to claim 3, wherein the top of the spring (51) is fixedly connected with the middle part of the bottom surface of the spring plate (53), and the outer surface of the spring plate (53) is in sliding contact with the inner side wall of the cylindrical cavity (52).

5. The cold header for stainless steel bolts according to claim 4, wherein the through groove (531) is configured as a cross groove, a transverse groove of the through groove (531) is connected with the connecting groove (55) when the spring plate (53) is positioned at the bottom of the cylindrical cavity (52), and a vertical groove of the through groove (531) corresponds to the air groove (541) and is connected when the spring plate (53) is positioned at the bottom of the cylindrical cavity (52).

6. The cold header for stainless steel bolts according to claim 5, wherein the movable groove (56) is formed in the cold pressing mold (4) and located at the upper side of the cylindrical cavity (52), a clamping block (57) is fixedly connected to the middle part of the inner part of the movable groove (56), an inclined block (58) is movably sleeved on the outer side of the clamping block (57) and located in the inner part of the movable groove (56), and a connecting rod (59) is fixedly connected to the middle part of the bottom surface of the inclined block (58).

7. The cold header for stainless steel bolts according to claim 6, wherein the outer surface of the fixture block (57) is provided with an inclined surface, the inclination of the inclined surface on the inner side of the inclined block (58) is the same as the inclination of the outer surface of the fixture block (57), the fixture block (57) is made of rubber material, and a hole for the bolt (6) to pass through is formed in the middle of the fixture block (57).

8. The cold header for stainless steel bolts according to claim 7, wherein the top of the connecting rod (59) is fixedly connected with the bottom surface of the inclined block (58), the lower portion of the connecting rod (59) extends into the movable groove (56) and is fixedly connected to the top surface of the spring plate (53), and a hole for the connecting rod (59) to penetrate is formed in the cold pressing die (4) between the cylindrical cavity (52) and the movable groove (56).