CN216883566U

CN216883566U - Clamp capable of repeatedly clamping multiple diameters

Info

Publication number: CN216883566U
Application number: CN202220450735.4U
Authority: CN
Inventors: 张伟; 周运亮
Original assignee: Suzhou Sinnotech Technology Co ltd
Current assignee: Suzhou Sinnotech Technology Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-05
Anticipated expiration: 2032-03-03

Abstract

The utility model relates to the field of clamping fixtures, and discloses a multi-diameter repeated clamping fixture which comprises a base and a connecting block, wherein the base and the connecting block are assembled together, a clamping groove is formed in one side, close to the connecting block, of the base, the cross section of the connecting block is U-shaped, a threaded hole is formed in the connecting block, a threaded column is in threaded connection with the inside of the threaded hole, a cylindrical part needing to be fixed is placed in the clamping groove, the threaded column is rotated, one end of the threaded column moves towards the side wall, close to the cylindrical part, to fix the part, and the multi-diameter repeated clamping fixture is applicable to repeated use, different parts are positioned by using the same reference edge, the size of the circular part is changed, and the repeated positioning precision can reach zero point and one millimeter.

Description

Clamp capable of repeatedly clamping multiple diameters

Technical Field

The utility model relates to the field of clamping fixtures, in particular to a clamp capable of repeatedly clamping various diameters.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, the means for quickly, conveniently and safely mounting the workpiece, at any stage in the process, may be referred to as a jig, which is generally defined by a locating element (which determines the correct position of the workpiece in the jig), a clamping device, the clamp comprises a tool setting guide element (determining the relative position of a tool and a workpiece or guiding the direction of the tool), an indexing device (enabling the workpiece to finish machining of a plurality of stations in one-time installation, including a rotary indexing device and a linear movement indexing device), a connecting element, a clamp body (a clamp base) and the like.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a clamp capable of repeatedly clamping with various diameters, and solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: multiple diameter repeatedly clamping anchor clamps, including base and the connecting block that the assembly is in the same place, the draw-in groove has been seted up to one side that the base is close to the connecting block, and the cross section of connecting block is the U-shaped, sets up threaded hole on the connecting block, and the internal thread of screw hole is connected with the screw thread post, will need the fixed cylindrical part to place in the inside of draw-in groove, rotatory screw thread post for the one end of screw thread post is to the lateral wall removal that is close to cylindrical part, and is fixed with the part.

Preferably, the both sides of base homogeneous body shaping have the arch, even link to have seted up the rectangular channel on the connecting block corresponds bellied position, rectangular channel and protruding looks adaptation, the rectangular channel is in the same place with protruding joint.

Preferably, the clamping groove is a triangular groove, different parts in the scheme are positioned by using the same reference edge, the circular part can be used regardless of the change of the size of the circular part, and the circular part can be repeatedly used, and the repeated positioning precision can reach zero point and one millimeter.

Preferably, one end of the threaded column, which is positioned inside the connecting block, is connected with an arc-shaped block through a bearing, and two sides of the arc-shaped block are provided with expandable expansion blocks.

Preferably, an arc-shaped groove is formed in one side wall surface of the arc-shaped block, which is close to the central point, a clamping block is fixedly installed at a position, corresponding to the arc-shaped groove, of the unfolding block, and the clamping block and the arc-shaped groove are movably inserted together.

Preferably, the inner part of the arc-shaped groove is hinged with two hinged rods, the two hinged rods are cleaned towards one side which is deviated from each other, the free ends of the two hinged rods are hinged with hinged blocks, the hinged blocks are cleaned towards one side of the clamping block, the free ends of the hinged blocks are hinged with the clamping block, the two hinged blocks and the two hinged rods are combined into an M shape, when the cylindrical workpiece is fixed, one side, close to each other, of the two hinged rods can be firstly attached to the side wall of the cylindrical workpiece, at the moment, the two hinged rods can be cleaned towards the side which is deviated from each other, then the hinged blocks are driven to move towards the side which is deviated from each other, then the two clamping blocks are driven to move towards the side which is deviated from each other, the unfolding blocks are driven to move, at the moment, the unfolding blocks can be unfolded, the side wall of the cylindrical workpiece is wrapped, the attaching area is increased, so that a single threaded column is prevented from being directly contacted with the outer wall surface of the workpiece, causing wear to the outer wall surface thereof.

Preferably, be in the same place through spring coupling between the hinge bar with one side and the arc wall inner wall, after taking out circular workpiece, after two hinge bars lost the extrusion force of work piece, the spring kick-backed for two hinge bars pull back, drive the expansion piece of both sides and reset, make the hinge bar reset simultaneously, this scheme can directly let the hinge bar reset, the downside used repeatedly of being convenient for.

(III) advantageous effects

Compared with the prior art, the utility model provides the repeatable clamping fixture with various diameters, and the repeatable clamping fixture has the following beneficial effects:

1. this multiple diameter repeatedly clamping anchor clamps, the different parts of this scheme use the same benchmark limit location, no matter how the size of circular part changes, all can be suitable for to can used repeatedly, repeated positioning accuracy can reach zero point zero one millimeter.

2. This multiple diameter repeatedly clamping anchor clamps, when in fixed cylindrical work piece, one side that two hinge bars are close to each other can be at first laminated with the lateral wall of cylindrical work piece, two hinge bars can be washd to one side that deviates from each other this moment, then drive articulated piece and remove to one side that deviates from each other, then drive two fixture blocks and remove to one side that deviates from each other, it removes to drive the expansion piece, the expansion piece can expand this moment, wrap up the lateral wall of cylindrical work piece, increase the laminating area, in order to avoid the direct and outer wall contact of work piece of an independent screw thread post, cause its outer wall wearing and tearing.

3. This multiple diameter repeatedly clamping anchor clamps, after taking out circular workpiece, after two hinge bar lost the extrusion force of work piece, the spring kick-backed for two hinge block pullbacks, the expansion piece that drives both sides resets, makes the hinge bar reset simultaneously, and this scheme can directly let the hinge bar reset, the downside used repeatedly of being convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention with the structure broken away;

fig. 3 is a schematic top cross-sectional view of an arcuate block of the present invention.

In the figure: 1. a base; 2. a protrusion; 3. a card slot; 4. connecting blocks; 5. a threaded hole; 6. a rectangular groove; 7. a threaded post; 8. an arc-shaped block; 9. unfolding the block; 10. an arc-shaped slot; 11. a clamping block; 12. a hinged block; 13. a hinged lever; 14. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the clamp capable of repeatedly clamping with various diameters comprises a base 1 and a connecting block 4 which are assembled together, wherein a clamping groove 3 is formed in one side, close to the connecting block 4, of the base 1, the cross section of the connecting block 4 is U-shaped, a threaded hole 5 is formed in the connecting block 4, a threaded column 7 is connected to the internal thread of the threaded hole 5, a cylindrical part to be fixed is placed in the clamping groove 3, and the threaded column 7 is rotated to enable one end of the threaded column 7 to move towards the side wall, close to the cylindrical part, so that the part is fixed.

Further, the both sides of base 1 homogeneous body shaping has arch 2, has seted up rectangular channel 6 on connecting block 4 corresponding protruding 2's the position, rectangular channel 6 and protruding 2 looks adaptation, rectangular channel 6 and protruding 2 joint together.

Furthermore, the clamping groove 3 is a triangular groove, different parts in the scheme are positioned by using the same reference edge, the circular part can be used regardless of the change of the size of the circular part, and can be repeatedly used, and the repeated positioning precision can reach zero point by one millimeter.

Furthermore, one end of the threaded column 7, which is positioned inside the connecting block 4, is connected with an arc-shaped block 8 through a bearing, and two sides of the arc-shaped block 8 are provided with expandable expansion blocks 9.

Furthermore, an arc-shaped groove 10 is formed in one side wall surface of the arc-shaped block 8 close to the central point, a clamping block 11 is fixedly installed on the position, corresponding to the arc-shaped groove 10, of the unfolding block 9, and the clamping block 11 is movably inserted into the arc-shaped groove 10.

Further, two hinged rods 13 are hinged inside the arc-shaped groove 10, the two hinged rods 13 are cleaned towards the sides which are away from each other, the free ends of the two hinged rods 13 are hinged with hinged blocks 12, the hinged blocks 12 are cleaned towards one side of the clamping block 11, the free ends of the hinged blocks 12 are hinged with the clamping block 11, the two hinged blocks 12 and the two hinged rods 13 are combined into an M shape, when the cylindrical workpiece is fixed, the side, close to each other, of the two hinged rods 13 is firstly attached to the side wall of the cylindrical workpiece, at the moment, the two hinged rods 13 are cleaned towards the side which is away from each other, then the hinged blocks 12 are driven to move towards the side which is away from each other, then the two clamping blocks 11 are driven to move towards the side which is away from each other, the unfolding blocks 9 are driven to move, at the moment, the unfolding blocks 9 are unfolded, the side wall of the cylindrical workpiece is wrapped, the attaching area is increased, so that a single threaded column 7 is prevented from being directly contacted with the outer wall surface of the workpiece, causing wear to the outer wall surface thereof.

Further, link together through spring 14 between the articulated mast 13 and the arc wall 10 inner wall with one side, after taking out circular workpiece, after two articulated mast 13 lost the extrusion force of work piece, spring 14 kick-backs for two articulated blocks 12 pullbacks, drive the expansion piece 9 of both sides and reset, make articulated mast 13 reset simultaneously, this scheme can directly let articulated mast 13 reset, the downside used repeatedly of being convenient for.

The working principle is as follows: the cylindrical part to be fixed is placed in the clamping groove 3, the threaded column 7 is rotated, one end of the threaded column 7 moves towards the side wall close to the cylindrical part, and the part is fixed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Multiple diameter repeatedly clampable anchor clamps, its characterized in that: including base (1) and connecting block (4) that the assembly is in the same place, draw-in groove (3) have been seted up to one side that base (1) is close to connecting block (4), the cross section of connecting block (4) is the U-shaped, set up threaded hole (5) on connecting block (4), the internal thread of screw hole (5) is connected with screw thread post (7).

2. The multi-diameter re-clamping fixture as claimed in claim 1, wherein: the equal integrated into one piece in both sides of base (1) has arch (2), rectangular channel (6) have been seted up on connecting block (4) correspond the position of arch (2), rectangular channel (6) and arch (2) looks adaptation, rectangular channel (6) are in the same place with arch (2) joint.

3. The multi-diameter re-clamping fixture as claimed in claim 1, wherein: the clamping groove (3) is a triangular groove.

4. The multi-diameter re-clamping fixture as claimed in claim 1, wherein: the threaded column (7) is located the inside one end of connecting block (4) and is connected with arc piece (8) through the bearing, the both sides of arc piece (8) are provided with deployable piece (9) that expand.

5. The multi-diameter re-clamping fixture as claimed in claim 4, wherein: an arc-shaped groove (10) is formed in one side wall face, close to the central point, of the arc-shaped block (8), a clamping block (11) is fixedly installed on the position, corresponding to the arc-shaped groove (10), of the unfolding block (9), and the clamping block (11) is movably inserted into the arc-shaped groove (10).

6. The multi-diameter re-clamping fixture as claimed in claim 5, wherein: the inside of arc wall (10) articulates there are two articulated rods (13), and two articulated rods (13) are washd to one side that deviates from each other, two the free end of articulated rod (13) all articulates there is articulated piece (12), articulated piece (12) are washd towards fixture block (11) one side, the free end of articulated piece (12) is in the same place with fixture block (11) are articulated, and two articulated pieces (12) and two articulated rods (13) make up into an M shape.

7. The multi-diameter re-clamping fixture as claimed in claim 6, wherein: the hinge rod (13) on the same side is connected with the inner wall of the arc-shaped groove (10) through a spring (14).