Adjustable eccentric roller dog

Abstract

The utility model relates to the pipe material section processing field of metal material quality especially relates to an adjustable eccentricity roller dog -claw, including two sets of dog -claw subassembly one and two sets of dog -claw subassembly two, two sets of dog -claw subassembly one and two sets of dog -claw subassembly two staggered setting in turn, dog -claw subassembly one, dog -claw subassembly two all include dog -claw seat, two sets of roller assembly, and the top of one side of dog -claw seat, the lower side all are provided with the extension seat, and all are provided with detachable roller assembly on extension seat, the roller assembly includes two symmetrical side mounting plates, and one side between two side mounting plates is rotatably installed with roller body through bearing assembly, in the utility model, through the setting of two sets of fastening screws cooperation eccentric screw, can assemble between roller assembly and extension seat, and the position of assembled roller assembly is adjusted eccentricity, can be firmly locked after adjusting, and ensure that the stability that dog -claw subassembly one and dog -claw subassembly two carry out the clamping of workpiece subsequently.

Description

Technical Field

[0001] This utility model relates to the field of metal pipe and profile processing technology, and in particular to an adjustable eccentric roller chuck. Background Technology

[0002] In the processing of various metal pipes and profiles, most require the use of professional laser pipe cutting machines or integrated plate and pipe machines for cutting, and corresponding chucks are set up to clamp the pipes and profiles.

[0003] Many chucks have fixed rollers or clamping parts, or can only be coarsely adjusted by cumbersome methods such as shims. Although some have adjustment functions, they are positioned and locked by a single eccentric screw. Under the action of processing vibration, the single eccentric screw is prone to loosening, which can easily cause the adjusted parts to loosen. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable eccentric roller chuck.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable eccentric roller gripper includes two sets of gripper assembly one and two sets of gripper assembly two, wherein the two sets of gripper assembly one and the two sets of gripper assembly two are arranged alternately in sequence. Both the first and second claw assemblies include a claw base and two sets of roller assemblies. An extension base is provided on the upper and lower sides of one side of the claw base, and a detachable roller assembly is provided on the extension base. The roller assembly includes two symmetrically arranged side mounting plates, and a roller body is rotatably mounted on one side between the two side mounting plates via a bearing assembly. Each side mounting plate is equipped with an eccentric screw for adjusting the eccentric position and two fastening screws for locking and fixing. The side mounting plates are positioned and connected to the extension seat via the eccentric screws, and the side mounting plates are locked and fixed to the extension seat via the two fastening screws. In addition, in a preferred configuration, both sets of the second claw assembly are provided with pads at their bottoms, and the pads are connected to the second claw assembly by bolts.

[0006] Furthermore, a preferred structure is that one side of the side mounting plate has a waist-shaped mounting hole for the eccentric screw to pass through.

[0007] Furthermore, in a preferred configuration, the side mounting plate has two waist-shaped mounting holes, one for fastening screws to pass through, located on both sides of the waist-shaped mounting hole two.

[0008] Furthermore, in a preferred configuration, threaded holes corresponding to the eccentric screws are provided on both sides of the extension seat.

[0009] Furthermore, in a preferred configuration, the extension seat has threaded holes corresponding to the fastening screws on both sides of the mounting groove.

[0010] The beneficial effects of this utility model are as follows: In this invention, the roller assembly and the extension seat can be assembled by using two sets of fastening screws in conjunction with eccentric screws. The position of the assembled roller assembly is then eccentrically adjusted to ensure that the rollers in the two sets of jaw assemblies maintain parallelism and concentricity with the chuck bearing. After adjustment, the rollers can be firmly locked, ensuring the stability of the subsequent clamping of the workpiece by jaw assembly one and jaw assembly two. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an adjustable eccentric roller chuck proposed in this utility model; Figure 2 This is a schematic diagram of a partially disassembled claw assembly 2; Figure 3 This is a structural diagram showing the disassembled side mounting plate and eccentric screws.

[0012] In the diagram: 101, Claw assembly one; 102, Claw assembly two; 11, Claw seat; 12, Extension seat; 13, Roller assembly; 131, Side mounting plate; 132, Roller body; 133, Bearing assembly; 134, Waist-shaped mounting hole one; 135, Waist-shaped mounting hole two; 14, Fastening screw; 15, Eccentric screw; 2, Spacer block. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Reference Figure 1-3 An adjustable eccentric roller chuck includes two sets of chuck assembly 101 and two sets of chuck assembly 202, which are arranged alternately. Each chuck assembly 101 and chuck assembly 202 includes a chuck seat 11 and two sets of roller assemblies 13. An extension seat 12 is provided above and below one side of the chuck seat 11, and each extension seat 12 is provided with a detachable roller assembly 13. The two sets of chuck assembly 101 and chuck assembly 202 are arranged alternately. The extension seat has a long key structure to control the parallel adjustment and stability of the rollers in the chuck assembly. When the chuck is subjected to axial impact, it is the first to be stressed, avoiding the risk of the two fixing screws 14 breaking due to excessive instantaneous impact shear force. This increases the stability of clamping and prevents the workpiece from moving or shifting during processing.

[0015] The roller assembly 13 includes two symmetrically arranged side mounting plates 131, and a roller body 132 is rotatably mounted on one side between the two side mounting plates 131 via a bearing assembly. Each of the two side mounting plates 131 is provided with an eccentric screw 15 for adjusting the eccentric position and two fastening screws 14 for locking and fixing. The side mounting plate 131 is positioned and connected to the extension seat 12 by the eccentric screw 15, and the side mounting plate 131 is locked and fixed to the extension seat 12 by the two fastening screws 14. Both sets of claw assemblies 102 have pads 2 at their bottoms. The height of the claw assembly 102 is adjusted by these pads, and the pads 2 are bolted to the claw assembly 102. The extension seat 12 has threaded holes on both sides corresponding to the eccentric screws 15. The extension seat 12 also has threaded holes on both sides of the mounting groove corresponding to the fastening screws 14.

[0016] The side mounting plate 131 has a second waist-shaped mounting hole 135 for the eccentric screw 15 to pass through on one side. On both sides of the second waist-shaped mounting hole 135, the side mounting plate 131 has a first waist-shaped mounting hole 134 for the fastening screw 14 to pass through. Due to the allowance provided by the first waist-shaped mounting hole 134 and the second waist-shaped mounting hole 135, the side mounting plate has sufficient room to move to complete this eccentric adjustment.

[0017] In this embodiment, when assembling the roller assembly and the extension seat, the shank portion of the eccentric screw engages with the threaded hole 1 on the extension seat 12, and its smooth portion is eccentric relative to the thread center. When the eccentric screw is rotated, its smooth portion acts like a cam, pushing the inner wall of the waist-shaped mounting hole 135 on the side mounting plate 131, thereby causing the entire side mounting plate 131 together with the roller body 132 to undergo lateral displacement. When the eccentric screw is rotated, the movement of the roller in position can be observed.

[0018] After the roller position is adjusted to the required position, pass the fastening screw 14 through the waist-shaped mounting hole 134 and fasten it into the threaded hole 2 of the extension seat 12. Tighten the two fastening screws 14 to securely lock the side mounting plate 131 onto the extension seat 12, ensuring that the adjusted position will not change under stress.

[0019] In this utility model, by using two sets of fastening screws in conjunction with eccentric screws, the roller assembly 13 and the extension seat can be assembled. The position of the assembled roller assembly can be eccentrically adjusted and then firmly locked after adjustment, ensuring the stability of the subsequent clamping of the workpiece by the first and second jaw assemblies.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable eccentric roller gripper, comprising two sets of gripper assembly one (101) and two sets of gripper assembly two (102), characterized in that, The two sets of claw assembly one (101) and the two sets of claw assembly two (102) are arranged alternately in sequence; Both the first claw assembly (101) and the second claw assembly (102) include a claw seat (11) and two sets of roller assemblies (13). An extension seat (12) is provided on the upper and lower sides of one side of the claw seat (11), and a detachable roller assembly (13) is provided on the extension seat (12). The roller assembly (13) includes two symmetrically arranged side mounting plates (131), and a roller body (132) is rotatably mounted on one side between the two side mounting plates (131) via a bearing assembly. Both side mounting plates (131) are equipped with an eccentric screw (15) for adjusting the eccentric position and two fastening screws (14) for locking and fixing. The side mounting plate (131) is positioned and connected to the extension seat (12) by the eccentric screw (15), and the side mounting plate (131) is locked and fixed to the extension seat (12) by the two fastening screws (14).

2. The adjustable eccentric roller chuck according to claim 1, characterized in that, Both sets of claw assembly two (102) are provided with pads (2) at the bottom, and the pads (2) are connected to the claw assembly two (102) by bolts.

3. The adjustable eccentric roller gripper according to claim 1, characterized in that, The side of the side mounting plate (131) has a waist-shaped mounting hole (135) for the eccentric screw (15) to pass through.

4. The adjustable eccentric roller chuck according to claim 1, characterized in that, The side mounting plate (131) has two waist-shaped mounting holes (134) on both sides of the waist-shaped mounting hole (135) for fastening screws (14) to pass through.

5. An adjustable eccentric roller chuck according to claim 1, characterized in that, The extension seat (12) has threaded holes on both sides corresponding to the eccentric screw (15).

6. The adjustable eccentric roller gripper according to claim 1, characterized in that, The extension seat (12) has two threaded holes on both sides of the mounting groove, corresponding to the fastening screws (14).

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