CN211474639U

CN211474639U - Connecting screw rod formed by cold forging die and strong beam

Info

Publication number: CN211474639U
Application number: CN201922235489.1U
Authority: CN
Inventors: 何英安
Original assignee: Hamawi Engineering Technology Shanghai Co Ltd
Current assignee: Hamawi Engineering Technology Shanghai Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-11
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a connecting screw rod formed by cold forging die through strong beam, which comprises a screw cap, a post rod, a connecting rod and a fastening pad, wherein the connecting rod is arranged below the screw cap, external threads are arranged on the outer side of the connecting rod, the post rod is fixedly connected between the screw cap and the connecting rod, the outer side of the post rod is provided with a concave ring, two clamping grooves are symmetrically arranged above the concave ring and positioned on two sides of the post rod, the fastening pad is sleeved on the outer side of the post rod and comprises a bottom plate, a top plate and a connecting ring, the connecting screw rod formed by cold forging die through strong beam continuously forwards moves the screw cap in the screwing and continuously extrudes a slide block on the upper edge of the concave ring to enable the slide block to slide towards two sides, an elastic element shrinks until the slide block is right opposite to the clamping grooves, the slide block is embedded into the clamping grooves under the elastic action of the elastic element, the rectangular grooves and, the connecting screw rod can not loose and turn, and the use safety is guaranteed.

Description

Connecting screw rod formed by cold forging die and strong beam

Technical Field

The utility model relates to a fashioned connecting screw rod of cold forging mould intense beam belongs to connecting screw rod technical field.

Background

Cold forging is a forming process below the recrystallization temperature of materials, is a forging process below the recovery temperature, is used for forging blanks without heating in production and is called cold forging, most cold forging materials are aluminum and partial alloys with small deformation resistance and good plasticity at room temperature, copper and partial alloys, low-carbon steel, medium-carbon steel and low-alloy structural steel, cold forging pieces are good in surface quality and high in dimensional precision and can replace some cutting processes, metal can be strengthened by cold forging, the strength of parts is improved, the cold forging is commonly used in the production process of precision components such as connecting screws and the like, under the general condition, the connecting screw rods are matched with nuts and gaskets for use, play a role in fastening by means of friction force and thread structures, this structure is under the great condition of external vibration intensity, and the connection screw rod still can appear the antiport condition, and then leads to connection screw rod not hard up, is difficult to ensure safe in utilization.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the use of the equal nut of arranging of current connecting screw, gasket, rely on frictional force and helicitic texture to play the fastening effect, this structure is under the great condition of external vibration intensity, and reverse rotation's the condition still can appear to connecting screw, and then leads to connecting screw not hard up, is difficult to ensure safe in utilizationly shortcoming, and the fashioned connecting screw of cold forging mould intense beam that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a connecting screw rod formed by cold forging die intense beam is designed, and comprises a screw cap, a post rod, a connecting rod and a fastening pad, wherein the connecting rod is arranged below the screw cap, external threads are arranged on the outer side of the connecting rod, the post rod is fixedly connected between the screw cap and the connecting rod, a concave ring is arranged on the outer side of the post rod, two clamping grooves are symmetrically formed above the concave ring and positioned on two sides of the post rod, the fastening pad is sleeved on the outer side of the post rod and comprises a bottom plate, a top plate and a connecting ring, the connecting ring is fixedly connected between the bottom plate and the top plate, penetrating grooves are respectively formed in the middle parts of the bottom plate and the top plate, embedding grooves are respectively formed in the groove wall of each penetrating groove, sealing rings are respectively embedded in the embedding grooves, two slide holes are symmetrically formed in the outer wall of the connecting ring, slide rods are embedded in the slide holes, the other end of the sliding rod is fixedly connected with an expansion head, and elastic elements are sleeved between the sliding block and the connecting ring and on the outer side of the sliding rod.

Preferably, the bottom plate and the top plate are both connected with the sliding block in a sliding mode, and the inner wall of the sliding hole is connected with the sliding rod in a sliding mode.

Preferably, the sliding blocks are symmetrically arranged in the fastening pad, and the cross sections of the sliding blocks are in a trapezoidal structure.

Preferably, the two sliding blocks correspond to the two clamping grooves respectively.

Preferably, the thickness of the base plate is greater than 0.7 cm.

Preferably, the screw cap is regular hexagonal.

The utility model provides a pair of fashioned connecting screw is restrainted to cold forging mould by force, beneficial effect lies in: the utility model relates to a fashioned connecting screw is restrainted by force to cold forging mould revolves soon at connecting screw and twists tight in-process, and the continuous antedisplacement of nut, the continuous extrusion slider on the concave ring for the slider slides to both sides, and elastic element contracts, and just right until slider and draw-in groove, under elastic element's spring action, in slider embedding draw-in groove, rectangle recess and slider mutually support can be connected fastening pad and screw rod as an organic whole, make connecting screw can not become flexible turn to, have ensured the safety in utilization.

Drawings

Fig. 1 is a cross-sectional view of a matching structure of a connecting screw rod and a fastening pad formed by cold forging die intense beam;

FIG. 2 is a sectional view of the connecting screw fastening pad formed by cold forging die with strong beam;

fig. 3 is a sectional view of the connecting screw rod formed by cold forging die through strong beam;

fig. 4 is an appearance schematic diagram of the connecting screw fastening pad formed by cold forging die and strong beam.

In the figure: the device comprises a nut 1, a post rod 2, a concave ring 3, a clamping groove 4, a connecting rod 5, an external thread 6, a bottom plate 7, a top plate 8, a connecting ring 9, a through groove 10, an embedding groove 11, a sliding hole 12, a sliding block 13, a sliding rod 14, an elastic element 15, an expansion head 16, a sealing ring 17 and a fastening pad 18.

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.

Referring to fig. 1-4, a connecting screw rod formed by cold forging die through intense beam comprises a screw cap 1, a post rod 2, a connecting rod 5 and a fastening pad 18, wherein the connecting rod 5 is arranged below the screw cap 1, an external thread 6 is arranged on the outer side of the connecting rod 5, the post rod 2 is fixedly connected between the screw cap 1 and the connecting rod 5, a concave ring 3 is arranged on the outer side of the post rod 2, two clamping grooves 4 are symmetrically arranged above the concave ring 3 and positioned on two sides of the post rod 2, the fastening pad 18 is sleeved on the outer side of the post rod 2, the fastening pad 18 comprises a bottom plate 7, a top plate 8 and a connecting ring 9, the connecting ring 9 is fixedly connected between the bottom plate 7 and the top plate 8, through grooves 10 are respectively arranged in the middle parts of the bottom plate 7 and the top plate 8, embedded grooves 11 are respectively arranged on the wall of the through grooves 10, sealing rings 17 are respectively embedded in the embedded, one end of the sliding rod 14, which is positioned in the fastening pad 18, is fixedly connected with a sliding block 13, the other end of the sliding rod 14 is fixedly connected with an enlarged head 16, and elastic elements 15 are sleeved between the sliding block 13 and the connecting ring 9 and positioned outside the sliding rod 14.

The bottom plate 7 and the top plate 8 are both connected with the sliding block 13 in a sliding mode, the inner wall of the sliding hole 12 is connected with the sliding rod 14 in a sliding mode, the sliding rod 14 is arranged, the connecting screw rod can be detached, the sliding rod 14 is pulled outwards, the sliding block 13 can be moved out of the clamping groove 4, and unlocking is achieved; the sliding blocks 13 are symmetrically arranged in the fastening pads 18, the cross sections of the sliding blocks 13 are in a trapezoidal structure, the column rods 2 continuously and spirally move downwards, and as shown in fig. 1, the sliding blocks 13 are continuously extruded by the upper edges of the concave rings 3, so that the sliding blocks 13 slide towards two sides; the two sliding blocks 13 correspond to the two clamping grooves 4 respectively, and the clamping grooves 4 are matched with the sliding blocks 13, so that the connecting screw can be prevented from loosening; the thickness of the bottom plate 7 is larger than 0.7 cm, and the bottom plate 7 is matched with the rectangular groove; the nut 1 is regular hexagon, and is convenient for tightening operation.

The working principle is as follows: when the connecting rod is used, a rectangular groove needs to be formed in a workpiece, a fastening pad 18 penetrates through a connecting rod 5 and is sleeved on the outer side of a post rod 2, two sliding blocks 13 are clamped on a concave ring 3, then a connecting screw rod penetrates through a mounting hole and is screwed by a nut, the fastening pad 18 is clamped in the rectangular groove, in the screwing and tightening process of the connecting screw rod, a screw cap 1 continuously moves forwards until the screw cap 1 presses the fastening pad 18, the post rod 2 continuously moves downwards spirally, as shown in figure 1, the upper edge of the concave ring 3 continuously extrudes the sliding blocks 13 to enable the sliding blocks 13 to slide towards two sides, an elastic element 15 shrinks until the sliding blocks 13 are opposite to clamping grooves 4, under the elastic force of the elastic element 15, the sliding blocks 13 are embedded into the clamping grooves 4, at the moment, the screw cap 1 can limit the position of the fastening pad 18, the fastening pad 18 can be prevented from falling out of the rectangular groove, the fastening pad 18 cannot turn, thereby the problem that the connecting screw rod is not flexible can be avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The connecting screw rod for cold forging die forced beam forming comprises a screw cap (1), a post rod (2), a connecting rod (5) and a fastening pad (18), and is characterized in that the connecting rod (5) is arranged below the screw cap (1), external threads (6) are arranged on the outer side of the connecting rod (5), the post rod (2) is fixedly connected between the screw cap (1) and the connecting rod (5), a concave ring (3) is arranged on the outer side of the post rod (2), two clamping grooves (4) are symmetrically arranged above the concave ring (3) and on two sides of the post rod (2), the fastening pad (18) is sleeved on the outer side of the post rod (2), the fastening pad (18) comprises a bottom plate (7), a top plate (8) and a connecting ring (9), the connecting ring (9) is fixedly connected between the bottom plate (7) and the top plate (8), through grooves (10) are formed in the middles of the bottom plate (7) and the top plate (8), wear all to have seted up on groove (10) cell wall and inlay and establish groove (11), it all inlays in establishing groove (11) and is equipped with sealing washer (17) to inlay, go-between (9) outer wall symmetry has seted up two slide openings (12), slide opening (12) are embedded to be equipped with slide bar (14), one end fixedly connected with slider (13) that slide bar (14) are located fastening pad (18), the other end fixedly connected with of slide bar (14) enlarges head (16), it all overlaps and is equipped with elastic element (15) just to be located slide bar (14) outside between slider (13) and go-between (9).

2. A cold forging die forced-beam forming connecting screw rod according to claim 1, wherein the bottom plate (7) and the top plate (8) are both slidably connected with the sliding block (13), and the inner wall of the sliding hole (12) is slidably connected with the sliding rod (14).

3. A cold forging die connection screw according to claim 1, wherein the sliding blocks (13) are symmetrically arranged in the fastening pad (18), and the cross section of the sliding blocks (13) is in a trapezoidal structure.

4. A cold-forging die hard-beam forming connecting screw according to claim 1, wherein two of said sliding blocks (13) correspond to two of said locking grooves (4), respectively.

5. A cold-forging die hard-beam formed connecting screw according to claim 1, wherein the thickness of said bottom plate (7) is greater than 0.7 cm.

6. A cold-forging die hard-beam formed connecting screw according to claim 1, wherein said nut (1) is regular hexagonal.