CN215543708U

CN215543708U - Novel clamping device for rolled tube core rod

Info

Publication number: CN215543708U
Application number: CN202023182862.0U
Authority: CN
Inventors: 赵小宝
Original assignee: Baoji Longchen Metal Material Co ltd
Current assignee: Baoji Longchen Metal Material Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-01-18
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a novel clamping device for a rolled tube core rod. The clamping mechanism comprises a conical barrel arranged on one side of the barrel and used for the core rod to penetrate through, clamping grooves parallel to the side wall of the conical barrel are formed in the inner wall of the conical barrel along the circumferential distance, clamping blocks used for clamping the core rod are arranged in the clamping grooves in a sliding penetrating mode, and driving mechanisms used for driving the clamping blocks along the clamping grooves and clamping the core rod are arranged on the clamping blocks. The clamping device clamps the core rod through the combined action of the clamping mechanism and the driving device and the continuous driving force of the oil cylinder, overcomes the displacement of the core rod under the action of external force, keeps the core rod in a clamping state all the time in the process of applying force by the whole external force, and is convenient for enabling the core rod to have a stable and accurate positioning position under the conditions of operations such as external force processing and the like so as to improve the processing precision.

Description

Novel clamping device for rolled tube core rod

Technical Field

The utility model relates to the technical field of rolling, in particular to a novel clamping device for a rolled tube core rod.

Background

In the rolling, a metal billet is passed through a gap between rotating rolls to form the billet. In rolling, the end of the billet is clamped, and a large external force is applied to the surface of the billet by a roller, so that the billet is compressed and deformed, and the cross section is reduced and the length is increased. When the blank is rolled and formed, the external force of the roller is transmitted to the blank, so that the blank is subjected to large acting force, the blank is subjected to frequent vibration and displacement, and a large impact effect is caused on a clamping device at the end part of the blank, so that the clamping device is easily damaged, the clamping force is reduced, the clamping device gradually loses the clamping effect on the blank, the rolling work is carried out disorderly, and the rolling and forming quality of the blank is further influenced.

Disclosure of Invention

Aiming at the existing problems, the utility model aims to provide a novel clamping device for a rolled tube core rod, which has the advantages that through the combined action of a clamping mechanism and a driving device, the continuous driving force of an oil cylinder is used for clamping the core rod, the displacement of the core rod under the action of external force is overcome, the core rod is always kept in a clamping state in the process of being applied with force by the whole external force, and the rolling operation can be continuously carried out.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a novel clamping device for rolled tube plug, clamping device is including the barrel that is used for wearing to establish the plug, the barrel is located plug tip one side is equipped with and is used for overcoming the plug is under the exogenic action, will the plug lasts tight fixture of clamp.

Preferably, the clamping mechanism comprises a conical barrel arranged on one side of the barrel, the conical barrel is coaxial with the barrel and used for the core rod to penetrate through, clamping grooves parallel to the side wall of the conical barrel are formed in the inner wall of the conical barrel along the circumferential interval, clamping blocks used for clamping the core rod are arranged in the clamping grooves in a sliding penetrating mode, and driving mechanisms used for driving the clamping blocks to penetrate through the clamping grooves and clamp the core rod are arranged on the clamping blocks.

Preferably, the driving mechanism comprises a driving block which is coaxial with the conical cylinder and is correspondingly suspended with the clamping block, a displacement groove used for enabling the clamping block to move towards the axial direction of the conical cylinder is correspondingly formed in the outer wall of the driving block and the clamping block, the clamping block is located on one side of the driving block and is provided with a trapezoidal displacement block matched with the displacement groove, and one side of the end part of the mandrel deviates from the driving block and is connected with a driving device.

Preferably, the joint surface of the clamping block and the driving block is provided with an adjusting bolt for adjusting the relative position of the clamping block and the driving block along the length direction of the clamping block and the driving block.

The utility model has the beneficial effects that: the clamping device clamps the core rod through the combined action of the clamping mechanism and the driving device and the continuous driving force of the oil cylinder, overcomes the displacement of the core rod under the action of external force, keeps the core rod in a clamping state all the time in the process of applying force by the whole external force, and is convenient for enabling the core rod to have a stable and accurate positioning position under the conditions of operations such as external force processing and the like so as to improve the processing precision.

Drawings

Fig. 1 is an overall configuration diagram of a clamping device of the present invention.

Fig. 2 is a right side view of fig. 1 of the present invention.

FIG. 3 is a schematic cross-sectional view of a clamping device of the present invention.

FIG. 4 is a schematic view of the connection of the clamping block and the trapezoidal displacement block of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the drawings and the embodiments.

Referring to the accompanying drawings 1-4, the novel clamping device for the rolled tube core rod comprises a cylinder body 1 for penetrating the core rod (shown by the reference number 10 in the drawing), wherein a clamping mechanism for continuously clamping the core rod under the action of external force while overcoming the effect of the core rod is arranged on one side of the end part of the core rod of the cylinder body 1. The end of the mandrel is inserted into the cylinder 1, and the end of the mandrel is clamped by a clamping mechanism. The clamping mechanism has the advantages that the core rod overcomes the external force action under the action of the external force, the core rod is continuously clamped, the displacement of the core rod under the action of the external force is solved, the external force machining operation can be accurately performed on the core rod, and the core rod is formed.

Specifically, fixture is including setting up 1 one side of barrel have with 1 coaxial and be used for the tapered barrel 2 that the plug wore to establish, 2 inner walls of tapered barrel are seted up along the circumference interval and are pressed from both sides tight groove 21 with 2 lateral walls of tapered barrel it is used for right to slide to wear to be equipped with in pressing from both sides tight groove 21 the tight piece 3 of clamp that the plug presss from both sides, it is used for with to press from both sides tight piece 3 edge to press from both sides tight groove 21 drive, right to be equipped with on the tight piece 3 of clamp the actuating mechanism that the plug pressed from both sides tightly. The clamping effect of the structure on the core rod is as follows: and the end part of the core rod penetrates through the cylinder body 1 and penetrates into the conical cylinder body 2. Since the clamping groove 21 is parallel to the side wall of the cone-shaped cylinder 2, the clamping groove 21 is inclined at an angle with the axis of the cone-shaped cylinder 2. When the clamping block 3 is driven by the driving mechanism, the clamping block moves obliquely along the clamping groove 21 towards the surface of the mandrel until the end part of the clamping block 3 is tightly attached to the surface of the mandrel, and the mandrel is clamped by the external force of the driving mechanism. Preferably, the contact surface of the clamping block 3 and the mandrel is provided with a convex part 31 with a plane structure, which is convenient for contacting and clamping the mandrel and improving the clamping area.

Specifically, actuating mechanism include with conical cylinder 2 is coaxial, and with press from both sides tight piece 3 and correspond unsettled drive block 4 that sets up, drive block 4 outer wall with press from both sides tight piece 3 to correspond and offer and be used for press from both sides tight piece 3 orientation the displacement groove 41 that 2 axis directions of conical cylinder removed, press from both sides tight piece 3 to be located drive block 4 one side is equipped with the cooperation trapezoidal displacement piece 5 in displacement groove 41, drive block 4 deviates from plug tip one side is connected with drive arrangement. The driving action of the driving mechanism is as follows: when the driving device drives the driving block 4 to move towards the end part of the mandrel, the clamping block 3 and the trapezoidal displacement block 5 sequentially enable the trapezoidal displacement block 5 to move towards the axial direction of the driving block 4 in the displacement groove 41 and the clamping block 3 to move towards the surface of the mandrel along the inclined surface of the clamping groove 21 under the combined action of the clamping groove 21 and the displacement groove 41, and the mandrel is clamped. Preferably, the driving device is preferably an oil cylinder 7, a bracket 8 for fixedly supporting the oil cylinder 7 may be preferably arranged on the side wall of the tapered cylinder 2, and the driving block 4 is connected with a piston rod 71 of the oil cylinder 7 for transmitting the driving force. Under the action of the clamping mechanism matched with the driving mechanism, the mandrel is clamped through the continuous driving force of the oil cylinder 7, the displacement of the mandrel under the action of external force is overcome, and the mandrel is always kept in a clamping state in the process of applying force by the whole external force.

In order to facilitate the clamping block 3 to perform effective clamping force on core rods with different specifications, adjusting bolts 6 for adjusting the relative positions of the clamping block 3 and the driving block 4 are arranged on the joint surfaces of the clamping block and the driving block along the length direction of the clamping block and the driving block at intervals. Since the contact surface between the clamping block 3 and the driving block 4 is an inclined surface (shown in fig. 3 at a), the positions of the clamping block and the driving block in the vertical direction can be relatively changed by adjusting the adjusting bolt 6, so that the convex part 31 of the clamping block 3 can be closer to the surface of the mandrel or away from the surface of the mandrel according to the difference of the outer diameter of the mandrel.

The principle of the utility model is as follows: the clamping device clamps the core rod through the combined action of the clamping mechanism and the driving device and the continuous driving force of the oil cylinder, overcomes the displacement of the core rod under the action of external force, keeps the core rod in a clamping state all the time in the process of applying force by the whole external force, and is convenient for enabling the core rod to have a stable and accurate positioning position under the conditions of operations such as external force processing and the like so as to improve the processing precision.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel roll pipe plug clamping device, clamping device is including being used for wearing to establish barrel (1) of plug, barrel (1) is located plug tip one side is equipped with and is being used for overcoming the plug under the exogenic action, with the plug lasts tight fixture of clamp, its characterized in that:

the clamping mechanism comprises a cylinder body (1), a conical cylinder body (2) coaxial with the cylinder body (1) and used for the core rod to penetrate through is arranged on one side of the cylinder body (1), a clamping groove (21) parallel to the side wall of the conical cylinder body (2) is formed in the inner wall of the conical cylinder body (2) along the circumferential interval, a clamping block (3) used for clamping the core rod is arranged in the clamping groove (21) in a sliding and penetrating mode, and a driving mechanism used for driving the clamping block (3) to be driven by the clamping groove (21) and used for driving the core rod to be clamped is arranged on the clamping block (3).

2. The novel clamping device for the rolled tube core rod as claimed in claim 1, wherein: actuating mechanism include with conical barrel (2) are coaxial, and with press from both sides tight piece (3) and correspond unsettled drive block (4) that sets up, drive block (4) outer wall with press from both sides tight piece (3) to correspond and offer and be used for press from both sides tight piece (3) orientation displacement groove (41) that conical barrel (2) axis direction removed, press from both sides tight piece (3) and be located drive block (4) one side is equipped with the cooperation trapezoidal displacement piece (5) in displacement groove (41), drive block (4) deviate from plug tip one side is connected with drive arrangement.

3. The novel clamping device for the rolled tube core rod as claimed in claim 2, wherein: and adjusting bolts (6) for adjusting the relative positions of the clamping block (3) and the driving block (4) are arranged on the joint surface of the clamping block and the driving block at intervals along the length direction of the clamping block and the driving block.