CN212399320U

CN212399320U - Tightening chuck

Info

Publication number: CN212399320U
Application number: CN202020689358.0U
Authority: CN
Inventors: 蒋庆; 章佳豪
Original assignee: HANGZHOU ZHONGJIU AUTOMATIC CONTROL SYSTEM CO Ltd
Current assignee: HANGZHOU ZHONGJIU AUTOMATIC CONTROL SYSTEM CO Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-01-26
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to an iron wire centre gripping technical field discloses screw up the chuck, its technical scheme main points are including the two arms of pressing from both sides of setting relatively, press from both sides the arm and be used for pressing from both sides the iron wire, two clamp are got one side that the arm is relative and are provided with the connecting block respectively, two connecting blocks are used for increasing and the frictional force between the iron wire, one of them connecting block is rather than corresponding clamp and get and be provided with the subassembly that floats between the arm, carry out the in-process of centre gripping to the iron wire, with the iron wire centre gripping between two connecting blocks, compare in directly pressing from both sides the arm centre gripping iron wire of getting, the connecting block has increased and the frictional force between the iron wire, and when the centre gripping iron wire, be close to each other between two connecting blocks, make the spring compressed, restoring force through the spring, make the connecting.

Description

Tightening chuck

Technical Field

The utility model relates to an iron wire centre gripping technical field, more specifically the chuck is screwed up to saying so.

Background

The micro-channel heat exchanger is an efficient and environment-friendly heat exchange product made of aluminum alloy materials, has higher energy efficiency and reliability compared with the traditional tube fin heat exchanger, and is required to bind flat tubes and fins during manufacturing.

When binding flat pipe and fin, generally bind through the iron wire, at the in-process of binding, need carry out the centre gripping to the iron wire and screw up, under general condition, directly carry out the centre gripping to the iron wire through the clamping jaw, the clamping jaw clamping face is comparatively smooth, probably causes the condition emergence of iron wire roll-off, leads to the iron wire can't carry out follow-up screw up work.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a screw up the chuck for when the centre gripping iron wire, prevent the roll-off of iron wire.

In order to achieve the above purpose, the utility model provides a following technical scheme: screw up the chuck, press from both sides including two relative settings and get the arm, it is used for pressing from both sides and gets the iron wire to press from both sides the arm relative one side of getting is provided with the connecting block respectively, two the connecting block is used for increasing and the frictional force between the iron wire, one of them the connecting block rather than corresponding it gets and is provided with the subassembly that floats between the arm to press from both sides, the subassembly that floats includes the spring, the subassembly that floats passes through the flexible messenger of spring is connected rather than the connecting block can remove to moving direction is for being close to or keeping away from another the connecting block.

As a further improvement of the utility model, the subassembly that floats includes locating hole and bolt, the locating hole runs through on the horizontal direction the subassembly that floats is located press from both sides and get the arm, the bolt with locating hole sliding connection, the bolt rather than the homonymy threaded connection between the connecting block, the spring sets up rather than the homonymy the connecting block with press from both sides and get between the arm, another the connecting block rather than the homonymy press from both sides and get fixed connection between the arm.

As a further improvement of the utility model, the spring cup joint on the bolt, and the one end of spring with the subassembly homonymy that floats press from both sides and get arm fixed connection, the other end of spring with the subassembly homonymy that floats connecting block fixed connection.

As a further improvement of the utility model, the floating assembly is homonymy the displacement of connecting block is 2 millimeters.

As a further improvement of the utility model, the floating component is provided with two groups in the up-and-down symmetry.

As a further improvement of the utility model, the material of the connecting block is rubber.

As a further improvement of the utility model, two a side that the connecting block is relative is provided with a plurality of bar lug respectively, bar lug parallel arrangement of each other, per two be provided with the recess between the bar lug, and two the connecting block can intermeshing.

As a further improvement of the present invention, the bar-shaped projection is vertically disposed.

As a further improvement of the present invention, the length of the bar-shaped projection is equal to the height of the connecting block.

The utility model has the advantages that: the utility model discloses carrying out the in-process of centre gripping to the iron wire, with the iron wire centre gripping between two connecting blocks, compare in direct through pressing from both sides the arm centre gripping iron wire, the connecting block increased with the frictional force between the iron wire to when the centre gripping iron wire, be close to each other between two connecting blocks, make the spring compressed, through the restoring force of spring, make the connecting block with tighter of iron wire centre gripping, prevent the roll-off of iron wire.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the state of the gripping arm when the gripping arm is opened according to the present invention;

fig. 3 is a schematic sectional structure diagram of the present invention.

Reference numerals: 1. a gripping arm; 2. connecting blocks; 21. a bump; 22. a groove; 3. a floating assembly; 31. A spring; 32. positioning holes; 33. and (4) bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the tightening chuck of this embodiment includes two clamp arms 1 that set up relatively, and clamp arm 1 is used for pressing from both sides and gets the iron wire, and two clamp arms 1 opposite one side are provided with connecting block 2 respectively, and two connecting block 2 are used for increasing the frictional force with between the iron wire, and one of them connecting block 2 is provided with floating assembly 3 with its corresponding clamp arm 1 between, and floating assembly 3 includes spring 31, and floating assembly 3 makes connecting block 2 connected with it can move through the flexible of spring 31 to the direction of movement is for being close to or keeping away from another connecting block 2. The floating assembly 3 comprises a positioning hole 32 and a bolt 33, the positioning hole 32 penetrates through the clamping arm 1 where the floating assembly 3 is located in the horizontal direction, the bolt 33 is connected with the positioning hole 32 in a sliding mode, the bolt 33 is in threaded connection with the connecting block 2 on the same side, the spring 31 is arranged between the connecting block 2 on the same side and the clamping arm 1, and the other connecting block 2 is fixedly connected with the clamping arm 1 on the same side. When carrying out the centre gripping to the iron wire, the one side connecting block 2 at unsteady subassembly 3 place moves toward spring 31 one side, make spring 31 compress, two clamp get arm 1 and grasp the iron wire through 2 centre grippings of two connecting blocks, restoring force through spring 31 is tighter with the iron wire centre gripping, prevent that the iron wire from droing, spring 31 cup joints on bolt 33, and the one end of spring 31 gets arm 1 fixed connection with the clamp of unsteady subassembly 3 homonymy, spring 31's the other end and the connecting block 2 fixed connection of unsteady subassembly 3 homonymy, prevent that the condition of spring 31 pop-up equipment from taking place. The moving distance of the connecting block 2 on the same side of the floating component 3 is 2 mm.

Referring to fig. 1, floating assembly 3 is provided with two sets of from top to bottom symmetry, and two sets of settings increase floating assembly 3 to the stability of the connecting block 2 of its place one side, also more increase the stability of connecting block 2 to the iron wire centre gripping.

Referring to fig. 1, the connecting block 2 is made of rubber, and the rubber has elasticity, so that the contact area between the connecting block and the iron wire is increased in the process of clamping the iron wire.

Referring to fig. 1 and 2, a plurality of bar-shaped protrusions 21 are respectively disposed on opposite side surfaces of two connecting blocks 2, the bar-shaped protrusions 21 are disposed in parallel, a groove 22 is disposed between every two bar-shaped protrusions 21, and the two connecting blocks 2 can be engaged with each other. Through the meshing between two connecting blocks 2, at the in-process of centre gripping iron wire, more firm, prevent the iron wire roll-off, the vertical setting of bar lug 21. The length of bar lug 21 equals with connecting block 2's height for the iron wire can the centre gripping in each position of two connecting block 2 relative sides, and lug 21 and recess 22 homoenergetic play a role.

The working principle is as follows: when carrying out the centre gripping to the iron wire, 2 toward spring 31 one side removal of one side connecting block at floating assembly 3 place for spring 31 compresses, and two clamps get arm 1 and through 2 centre grippings iron wires of two connecting blocks, and the restoring force through spring 31 is tighter with the iron wire centre gripping, prevents that the iron wire from droing.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Screw up the chuck, press from both sides including two relative settings and get arm (1), press from both sides and get arm (1) and be used for pressing from both sides the clamp iron wire, its characterized in that: two it is provided with connecting block (2) respectively to press from both sides the relative one side of getting arm (1), two connecting block (2) are used for increasing and the frictional force between the iron wire, one of them connecting block (2) and its corresponding press from both sides and be provided with floating assembly (3) between getting arm (1), floating assembly (3) include spring (31), floating assembly (3) pass through the flexible messenger of spring (31) is connected connecting block (2) can move to the moving direction is for being close to or keeping away from another connecting block (2).

2. The tightening chuck according to claim 1, wherein: the floating assembly (3) comprises a positioning hole (32) and a bolt (33), the positioning hole (32) penetrates through the floating assembly (3) in the horizontal direction to clamp the arms (1), the bolt (33) is in sliding connection with the positioning hole (32), the bolt (33) is in threaded connection with the connecting blocks (2) on the same side of the bolt, the spring (31) is arranged between the connecting blocks (2) on the same side of the spring and the clamping arms (1), and the other connecting block (2) is in fixed connection with the clamping arms (1) on the same side of the spring.

3. The tightening chuck according to claim 2, wherein: the spring (31) is sleeved on the bolt (33), one end of the spring (31) is fixedly connected with the clamping arm (1) on the same side of the floating assembly (3), and the other end of the spring (31) is fixedly connected with the connecting block (2) on the same side of the floating assembly (3).

4. The tightening chuck according to claim 2, wherein: the moving distance of the connecting block (2) on the same side of the floating component (3) is 2 mm.

5. The tightening chuck according to claim 1, wherein: the floating components (3) are arranged in two groups in an up-down symmetrical mode.

6. The tightening chuck according to claim 1, wherein: the connecting block (2) is made of rubber.

7. The tightening chuck according to claim 1, wherein: two a plurality of bar-shaped convex blocks (21) are respectively arranged on one side face opposite to the connecting blocks (2), the bar-shaped convex blocks (21) are arranged in parallel, a groove (22) is arranged between every two bar-shaped convex blocks (21), and the connecting blocks (2) can be meshed with each other.

8. The tightening chuck according to claim 7, wherein: the strip-shaped convex blocks (21) are vertically arranged.

9. The tightening chuck according to claim 8, wherein: the length of the strip-shaped convex block (21) is equal to the height of the connecting block (2).