CN213436942U

CN213436942U - Cold heading device for special-shaped bolt

Info

Publication number: CN213436942U
Application number: CN202022398274.4U
Authority: CN
Inventors: 夏非亚
Original assignee: Chongqing Dingyi Machinery Manufacturing Co ltd
Current assignee: Chongqing Dingyi Machinery Manufacturing Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-15
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a dysmorphism bolt cold-heading device, the on-line screen storage device comprises a base, base top center department fixedly connected with of department upsets seat and upsets seat top center department and opens there is the constant head tank, base top center goes out the relative one-side symmetry of fixedly connected with U type frame and U type frame inside wall and opens there is the spacing groove, top center department fixedly connected with hydraulic stem and the flexible end connection of hydraulic stem upsets head seat in the U type frame. The utility model discloses in, through setting up spout, threaded rod, movable block and motor, when the head of dysmorphism bolt was the toper setting, because the special of shape, it is rotatory to drive two-way threaded rod through motor work after the cold-heading shaping, realizes two movable block separations, is convenient for take out the special-shaped bolt that is similar to conical special shape.

Description

Cold heading device for special-shaped bolt

Technical Field

The utility model relates to a bolt field especially relates to a special-shaped bolt cold-heading device.

Background

At present, automobiles are very popular as a vehicle, and a special-shaped bolt is one of important parts of the automobiles, and comprises a rod part with a round thread and a special-shaped square head part, wherein the special-shaped square head part is in a bidirectional R arc shape, namely four corners of the upper surface and the lower surface of the special-shaped square head part are in arc shapes.

The process for producing the special-shaped bolt in the prior art is to produce the special-shaped bolt in a CNC (numerical control machine) full-machining mode, but the special-shaped bolt is produced in the CNC full-machining production mode, so that the raw material utilization rate is low, the production cost is high, and different programs need to be edited when the special-shaped bolt is subjected to CNC machining due to different shapes of the heads of the special-shaped bolt.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a special-shaped bolt cold heading device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a special-shaped bolt cold heading device comprises a base, wherein a heading seat is fixedly connected to the center of the top of the base, a positioning groove is formed in the center of the top of the heading seat, a U-shaped frame is fixedly connected to the center of the top of the base, limiting grooves are symmetrically formed in one side, opposite to one side of the inner side wall of the U-shaped frame, a hydraulic rod is fixedly connected to the center of the top of the inner side of the U-shaped frame, the telescopic end of the hydraulic rod is fixedly connected with a heading;

open upset headstock bottom center department has spout and spout in the top rotate be connected with the threaded rod, it has two movable blocks and the movable block cross-section to be the setting of type of protruding to be close to center department symmetrical sliding connection in the spout, open spout inside wall one side center department has guide slot and guide slot one side relatively and is close to spout one end symmetry and open and have the rectangle cavity, open rectangle cavity inside wall bottom center department has the recess, sliding connection has the baffle in the rectangle cavity, upset headstock bottom is located the recess both sides and is close to guide slot one end symmetrical fixedly connected with sleeve, top fixedly connected with spring beam and spring beam bottom end face fixedly connected with horizontal pole in the sleeve, the horizontal pole is close to the fixedly connected with hemispheroid of upset headstock one side center department.

As a further description of the above technical solution:

the upset head seat is close to the opposite side top symmetry fixedly connected with gag lever post of spacing groove and gag lever post is close to spacing groove one end and spacing inslot lateral wall sliding connection.

As a further description of the above technical solution:

the screw thread at two ends of the threaded rod is reversely arranged, and one end of the threaded rod, close to the motor, penetrates through the sliding groove and extends outwards to be fixedly connected with the driving end of the motor.

As a further description of the above technical solution:

two equal fixedly connected with mould in movable block bottom and movable block top are seted up the screw thread and are threaded connection with the threaded rod contact surface.

As a further description of the above technical solution:

the cross section of the guide groove is arranged in a convex shape, and the inner side wall of the guide groove is matched with the two movable blocks in size and is connected with the movable blocks in a sliding manner.

As a further description of the above technical solution:

the groove is internally provided with a shifting block in a convex design in a sliding manner, the center of the bottom of the shifting block is provided with an arc-shaped groove, and one side of the shifting block, which is close to the baffle, is fixedly connected with the baffle.

As a further description of the above technical solution:

the inner side wall of the arc-shaped groove is matched with the hemisphere and is in sliding connection with the hemisphere.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up movable block, guide slot, rectangle cavity and baffle, be convenient for change the mould through the guide slot, realize the cold-heading of the bolt of different shapes through the mould of selecting different shapes, simultaneously through the effect that blocks of baffle, can prevent that the movable block from getting into the guide slot when removing in the spout in, lead to the mould to drop.

2. The utility model discloses a set up spout, threaded rod, movable block and motor, when the head of dysmorphism bolt was the toper setting, because the special of shape, it is rotatory to drive two-way threaded rod through motor work after the cold-heading shaping, realizes two movable block separations, is convenient for take out the special-shaped bolt that is similar to conical special shape.

Drawings

Fig. 1 is a front cross-sectional view of a special-shaped bolt cold heading device provided by the utility model;

FIG. 2 is a bottom view of the header base of FIG. 1;

FIG. 3 is a side cross-sectional view of the upset seat of FIG. 1;

fig. 4 is an enlarged view of fig. 3A.

Illustration of the drawings:

1. a base; 2. upsetting a seat; 3. positioning a groove; 4. a movable block; 5. a chute; 6. a limiting rod; 7. a U-shaped frame; 8. a limiting groove; 9. a hydraulic lever; 10. a heading seat; 11. a motor; 12. a hemisphere; 13. a mold; 14. a rectangular cavity; 15. a baffle plate; 16. a guide groove; 17. a cross bar; 18. shifting blocks; 19. a threaded rod; 20. a groove; 21. a spring lever; 22. a sleeve; 23. an arc-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a cold heading device for a special-shaped bolt comprises a base 1, wherein a heading seat 2 is fixedly connected to the center of the top of the base 1, a positioning groove 3 is formed in the center of the top of the heading seat 2, bolt raw materials can be placed conveniently through the positioning groove 3, a U-shaped frame 7 is fixedly connected to the center of the top of the base 1, limiting grooves 8 are symmetrically formed in one side, opposite to one side, of the inner side wall of the U-shaped frame 7, a hydraulic rod 9 is fixedly connected to the center of the top of the inside of the U-shaped frame 7, a heading seat 10 is fixedly connected to the telescopic end of the hydraulic rod 9, the heading seat 10 is moved through the hydraulic rod 9, cold heading of the special-shaped bolt is further achieved through a die 13 below the;

the center of the bottom of the upset head seat 10 is provided with a sliding groove 5, the top of the sliding groove 5 is rotatably connected with a threaded rod 19, the movable block 4 drives a die 13 to open and close through the threaded rod 19, the sliding groove 5 is internally provided with two movable blocks 4 which are symmetrically and slidably connected with each other near the center, the cross sections of the movable blocks 4 are arranged in a convex shape, the movable blocks 4 with the convex shape are convenient for the movable blocks 4 to be better clamped in the sliding groove 5 and the guide groove 16, so as to ensure the position stability of the movable blocks 4, the center of one side of the inner side wall of the sliding groove 5 is provided with a guide groove 16, one side of the guide groove 16 opposite to the guide groove 16 is symmetrically provided with a rectangular cavity 14, the movable blocks 4 can be replaced through the guide groove 16, the center of the bottom of the inner side wall of the rectangular cavity 14 is provided with a groove 20, the rectangular, the bottom of the upsetting head seat 10 is located two sides of the groove 20 and is close to the sleeve 22 which is symmetrically and fixedly connected with one end of the guide groove 16, the spring rod 21 is fixedly connected with the cross rod 17 at the bottom end face of the spring rod 21 in the sleeve 22, the cross rod 17 is close to the hemisphere 12 which is fixedly connected with the center of one side of the upsetting head seat 10, the flexibility of the cross rod 17 can be realized through the spring rod 21 and the cross rod 17, and the hemisphere 12 can realize the relative fixation of the shifting block 18.

The top of one opposite side of the upsetting head seat 10 close to the limiting groove 8 is symmetrically and fixedly connected with a limiting rod 6, one end of the limiting rod 6 close to the limiting groove 8 is in sliding connection with the inner side wall of the limiting groove 8, the stability of the position of the upsetting head seat 10 can be realized through the sliding connection of the limiting rod 6 and the limiting groove 8, the smooth movement is ensured, the threads at two ends of the threaded rod 19 are reversely arranged, one end of the threaded rod 19 close to the motor 11 penetrates through the sliding groove 5 and extends outwards to be fixedly connected with the driving end of the motor 11, the rotation of the threaded rod 19 is controlled through the motor 11, so that the opening and closing of the two movable blocks 4 are realized, the bottoms of the two movable blocks 4 are fixedly connected with a die 13, the top of each movable block 4 is provided with threads and is in threaded connection with the contact surface of the threaded rod 19, the cold upsetting of bolts with different shapes is realized by, when changing mould 13, laminate two movable blocks 4 each other, be convenient for realize advancing in the spout 5 through sliding through guide slot 16, and with threaded rod 19 threaded connection, shift block 18 and shift block 18 bottom center department that sliding connection has the type of calligraphy design of convexity have arc wall 23 in recess 20, shift block 18 is close to baffle 15 one side and baffle 15 fixed connection, arc wall 23 inside wall and hemisphere 12 phase-match and with hemisphere 12 sliding connection, fixed connection's shift block 18 is convenient for personnel slide in rectangular cavity 14 through removing shift block 18 control baffle 15, realize the effect of blockking to movable block 4, and through hemisphere 12 and arc wall 23 sliding connection, be convenient for realize the rigidity of shift block 18, simultaneously spring beam 21 also is convenient for personnel promote shift block 18 and break away from horizontal pole 17.

The working principle is as follows: according to the cold heading shape of the special-shaped bolt needing cold heading, a corresponding die 13 is selected, a movable block 4 arranged through the die 13 is matched with a guide groove 16 and slides into a sliding groove 5, meanwhile, the movable block 4 is in threaded connection with a threaded rod 19 through threads formed in the top of the movable block 4, a person pushes a baffle plate 15 to move in a rectangular cavity 14, when a shifting block 18 moves to a cross rod 17, the cross rod 17 moves downwards under the action of a spring rod 21, a hemispheroid 12 enters an arc-shaped groove 23, the shifting block 18 is fixed in position, when the shifting block 18 is positioned above the cross rod 17, one end, close to the sliding groove 5, of the guide groove 16 is sealed by the baffle plate 15, the movable block 4 is prevented from sliding into the guide groove 16 when a machine operates and causing work failure, during cold heading, the two movable blocks 4 are in a closed state, the die 13 is driven by a hydraulic rod 9 to be in contact with a raw material to realize cold heading of the bolt head, after the cold, meanwhile, the motor 11 drives the bidirectional threaded rod 19 to rotate, two movable blocks 4 which are in threaded connection are separated, the mold 13 is opened, and a person can take down the bolt finished by cold heading conveniently.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a dysmorphism bolt cold-heading device, includes base (1), its characterized in that: the center of the top of the base (1) is fixedly connected with an upsetting seat (2), a positioning groove (3) is formed in the center of the top of the upsetting seat (2), a U-shaped frame (7) is fixedly connected to the center of the top of the base (1), limiting grooves (8) are symmetrically formed in one side, opposite to the inner side wall of the U-shaped frame (7), a hydraulic rod (9) is fixedly connected to the center of the inner top of the U-shaped frame (7), an upsetting seat (10) is fixedly connected to the telescopic end of the hydraulic rod (9), and a motor (11) is fixedly connected to one side, close to the limiting groove (8;

the center of the bottom of the upsetting head seat (10) is provided with a sliding groove (5) and a threaded rod (19) which is rotatably connected with the top of the sliding groove (5), the sliding groove (5) is internally provided with two movable blocks (4) which are symmetrically and slidably connected with the center of the center and the cross section of each movable block (4), the sliding groove (5) is provided with a guide slot (16) and a rectangular cavity (14) which is symmetrically opened by approaching one end of the sliding groove (5) to one side opposite to the guide slot (16), the rectangular cavity (14) is provided with a groove (20) at the center of the bottom of the inner side wall of the rectangular cavity (14), the rectangular cavity (14) is internally provided with a baffle (15) in a sliding way, the bottom of the upsetting head seat (10) is arranged at the two sides of the groove (20) and is close to the sleeve (22) which is symmetrically and fixedly connected with the end surface of the guide slot (, the cross rod (17) is close to the center of one side of the upsetting head seat (10) and is fixedly connected with a hemispheroid (12).

2. The shaped bolt cold heading device of claim 1, wherein: the upsetting head seat (10) is close to the limiting groove (8) and is symmetrically and fixedly connected with the limiting rod (6) and the limiting rod (6) is close to one end of the limiting groove (8) and is in sliding connection with the inner side wall of the limiting groove (8).

3. The shaped bolt cold heading device of claim 1, wherein: the two ends of the threaded rod (19) are reversely arranged, and one end of the threaded rod (19) close to the motor (11) penetrates through the sliding groove (5) to extend outwards and is fixedly connected with the driving end of the motor (11).

4. The shaped bolt cold heading device of claim 1, wherein: two equal fixedly connected with mould (13) in activity piece (4) bottom and activity piece (4) top are seted up the screw thread and are threaded connection with threaded rod (19) contact surface.

5. The shaped bolt cold heading device of claim 1, wherein: the cross section of the guide groove (16) is arranged in a convex shape, and the inner side wall of the guide groove (16) is matched with the sizes of the two movable blocks (4) and is connected with the movable blocks (4) in a sliding manner.

6. The shaped bolt cold heading device of claim 1, wherein: the groove (20) is internally and slidably connected with a shifting block (18) in a convex shape design, an arc-shaped groove (23) is formed in the center of the bottom of the shifting block (18), and one side, close to the baffle (15), of the shifting block (18) is fixedly connected with the baffle (15).

7. The shaped bolt cold heading device of claim 6, wherein: the inner side wall of the arc-shaped groove (23) is matched with the hemisphere (12) and is connected with the hemisphere (12) in a sliding mode.