CN222289408U

CN222289408U - A plane positioning clamping tool

Info

Publication number: CN222289408U
Application number: CN202421146378.8U
Authority: CN
Inventors: 周星燎; 涂伟; 李元
Original assignee: Guangdong Shanggong Machinery Manufacturing Co ltd
Current assignee: Guangdong Shanggong Machinery Manufacturing Co ltd
Priority date: 2024-05-23
Filing date: 2024-05-23
Publication date: 2025-01-03
Anticipated expiration: 2034-05-23

Abstract

The utility model relates to a plane positioning and clamping tool, which belongs to the technical field of positioning and clamping and comprises a base, wherein a plurality of positioning plates are fixed at the top end of the base, a plurality of fastening screws are connected with the top end of the base in a threaded manner, clamping plates are fixed on the outer surfaces of the fastening screws, an extension assembly is arranged in each clamping plate and comprises two extension plates which are in sliding connection with the inner parts of the clamping plates, two connecting plates are fixed at the top ends of the two extension plates, and the extension assembly further comprises two transverse plates fixed with the top ends of the clamping plates. This plane location presss from both sides tight frock, through extension subassembly, the extension board can retract or shift out the inside of splint to can adjust the length of splint according to the size of work piece, thereby be convenient for carry out the centre gripping to the work piece of equidimension not fixed, when fixing in the location to the work piece of equidimension not again, need not to dismantle splint from the base, and also need not to compare splint and the work piece looks with equidimension not, and can improve application range.

Description

Plane positioning and clamping tool

Technical Field

The utility model relates to the technical field of positioning and clamping, in particular to a plane positioning and clamping tool.

Background

The workpiece to be machined is matched with a numerical control machining center machine tool to finish machining, the requirements on the size and the matching precision are high, the workpiece to be machined is usually clamped and machined through a three-jaw self-centering chuck, but the machining method usually needs to find a reference through a lever table in the machining process, is time-consuming and labor-consuming, often has the phenomenon that the position degree and the parallelism degree are out of tolerance and cannot meet the design requirements, and cannot clamp a plurality of workpieces to be machined simultaneously by adopting the three-jaw self-centering chuck clamping machining method, so that the machining method is not suitable for mass production and has low machining efficiency.

Chinese patent (bulletin number: C N220240777U) discloses a plane positioning and clamping tool, the size and position precision of part processing are improved, production efficiency is improved, the service life of the positioning and clamping tool is long, parts at all parts in a positioning and clamping mechanism can be independently detached and replaced, stop clamping time is reduced, machining efficiency is higher, but when workpieces with different sizes are required to be clamped and positioned, a clamping plate is required to be detached from a base through a fastening screw, then clamping plates matched with the sizes of the workpieces are replaced, the workpieces with different sizes can be clamped and positioned, and when the sizes of the clamping plates are replaced, workers are required to compare the clamping plates with the workpieces with different sizes, the clamping plates can accurately clamp and fix the workpieces on the base, so that the file is required to be positioned and fixed on the workpieces with different sizes, and the clamping tool has certain complexity.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a plane positioning and clamping tool, which has the advantages of being convenient for positioning and fixing workpieces with different sizes and the like, and solves the problem of inconvenience in positioning and fixing workpieces with different sizes.

In order to achieve the purpose, the plane positioning and clamping tool comprises a base, wherein a plurality of positioning plates are fixed at the top end of the base, a plurality of fastening screws are connected with the top end of the base in a threaded manner, clamping plates are fixed on the outer surfaces of the fastening screws, and extension assemblies are arranged in the clamping plates;

The extension subassembly includes two extension boards with splint's inside sliding connection, two the top of extension board is fixed with two even boards, the extension subassembly still includes two diaphragm fixed with splint top, both ends all are fixed with the piece of standing around even the board, the top of standing the piece is fixed with a piece, controls two sets of the spring of standing piece opposite side, the extension subassembly is still including setting up the location structure with two diaphragm tops.

Further, the splint is inside cavity and the rectangle that both ends were missed about, two the diaphragm is inside cavity and the rectangle that the lower extreme was missed.

Further, two slide holes are formed in the left end and the right end of the top end of the clamping plate, and the vertical block penetrates through the slide holes and is in sliding connection with the slide holes.

Further, the support block is T-shaped, two sliding grooves are formed in the top of the inner cavity of the transverse plate, and the support block is located at the inner side of the sliding grooves and is in sliding connection with the sliding grooves.

Further, the location structure includes two screws that are connected through the bearing rotation with splint top, the top of screw is fixed with the twist grip, the surface threaded connection of screw has the piece that moves, the lower extreme of moving the piece is fixed with the briquetting.

Further, through holes are formed in the left end and the right end of the top end of the transverse plate, and the pressing block penetrates through the through holes to the inside of the transverse plate and is in sliding connection with the transverse plate.

Further, two the screw rods are located between the front transverse plate and the rear transverse plate, a threaded hole is formed in the top end of the moving block, and the screw rods penetrate through the inner side of the threaded hole and are in threaded connection with the threaded hole.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this plane location presss from both sides tight frock is through being provided with extension subassembly, extension board can retract or shift out the inside of splint to can adjust the length of splint according to the size of work piece, thereby be convenient for carry out the centre gripping to the work piece of equidimension not fixed, when fixing in the location to the work piece of equidimension not again, need not to dismantle splint from the base down, and also need not to compare splint and the work piece looks of equidimension not, can effectively reduce the loaded down with trivial details nature of equipment when fixed to the work piece centre gripping of equidimension not, and can improve application range.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic perspective view of the clamping plate and the extension plate of the present utility model;

FIG. 3 is a schematic top view of the cavity of the cross plate of the present utility model;

Fig. 4 is a schematic perspective view of a positioning structure according to the present utility model.

In the figure, a base, a positioning plate, a fastening screw, a clamping plate, an extension component, a transverse plate, a vertical plate, a transverse plate, a screw rod, a rotating handle, a moving block and a pressing block are arranged on the base, the positioning plate, the fastening screw, the clamping plate, the extension component, the transverse plate, the vertical block, the transverse plate, the spring, the screw rod, the rotating handle, the moving block and the pressing block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a planar positioning and clamping tool in this embodiment includes a base 1, a plurality of positioning plates 2 are fixed at the top end of the base 1, a plurality of fastening screws 3 are screwed at the top end of the base 1, a clamping plate 4 is fixed on the outer surface of the fastening screws 3, and an extension assembly 5 is disposed inside the clamping plate 4.

It should be noted that the connection manner between the fastening screw 3, the clamping plate 4 and the base 1 is well known in the prior art, so the working principle thereof will not be described in detail.

Referring to fig. 2-3, the extension assembly 5 in this embodiment includes two extension plates 51 slidably connected with the inside of the clamping plate 4, two connecting plates 52 are fixed at the top ends of the two extension plates 51, two transverse plates 53 fixed at the top ends of the clamping plate 4, vertical blocks 54 are fixed at the front and rear ends of the connecting plates 52, supporting blocks 55 are fixed at the top ends of the vertical blocks 54, springs 56 on opposite sides of the left and right vertical blocks 54, and the other ends of the left and right springs 56 are fixed on the left and right walls of the inner cavities of the two transverse plates 53, respectively, and the extension assembly 5 further includes positioning structures arranged at the top ends of the two transverse plates 53.

Wherein, splint 4 is inside cavity and the rectangle that both ends were missed about, makes two extension plates 51 can move into or shift out the inside of splint 4 to can prolong the length of splint 4, need not to dismantle splint 4 with base 1 on, just can fix a position the work piece of equidimension not, two diaphragm 53 all are inside cavity and the rectangle that the lower extreme is missed.

And, two slide holes have all been seted up at the left and right sides both ends on splint 4 top, and upright 54 runs through to the inside of slide hole and rather than sliding connection, makes splint 4 be connected with two diaphragm 53 to can make upright 54 run through into the inside of diaphragm 53, so that upright 54 can extrude the spring 56 of diaphragm 53 inner chamber.

In addition, the supporting block 55 is in a T shape, two sliding grooves are formed in the top of the inner cavity of the transverse plate 53, the supporting block 55 is located on the inner side of the sliding grooves and is in sliding connection with the sliding grooves, the moving range of the vertical block 54 in the inner cavity of the transverse plate 53 can be limited, the vertical block 54 can accurately squeeze the spring 56, and the extension plate 51 can be prevented from completely falling out of the clamping plate 4.

Referring to fig. 4, the positioning structure in this embodiment includes two screws 57 rotatably connected to the top end of the clamping plate 4 through bearings, a rotating handle 58 fixed to the top end of the screws 57, a moving block 59 screwed to the outer surface of the screws 57, and a pressing block 510 fixed to the lower end of the moving block 59.

Secondly, through holes are formed at the left and right ends of the top end of the transverse plate 53, and the pressing block 510 penetrates through the through holes to the inside of the transverse plate 53 and is in sliding connection with the through holes, so that the pressing block 510 can move out of or into the inside of the transverse plate 53, and the pressing block 510 is in a T shape, so that the pressing block 510 can be prevented from moving out of the transverse plate 53 completely.

In addition, two screw rods 57 are located between the front and rear transverse plates 53, a threaded hole is formed in the top end of the moving block 59, and the screw rods 57 penetrate to the inner side of the threaded hole and are in threaded connection with the threaded hole, so that the screw rods 57 can drive the moving block 59 to move up and down through the threaded hole.

The working principle of the embodiment is as follows:

When the clamping device is used, if a workpiece with a smaller size is required to be clamped and fixed, the rotating handle 58 drives the screw rod 57 to rotate, so that the screw rod 57 drives the moving block 59 to move upwards, the moving block 59 drives the two pressing blocks 510 of the same group to move upwards, the pressing blocks 510 can not press and fix the extension plate 51 any more, namely, the extension plate 51 can be pulled out of the clamping plate 4, when the extension plate 51 gradually moves out of the clamping plate 4, the two pressing blocks 54 of the same group are driven to press the spring 56, when the extension plate 51 is abutted against one side wall of the workpiece, the screw rod 57 can be rotated in the opposite direction, the screw rod 57 drives the moving block 59 to move downwards, the two pressing blocks 510 can move inwards from the transverse plate 53 into the clamping plate 4, so that the extension plate 51 at two sides of the workpiece can be positioned and fixed, and the length of the clamping plate 4 can be prolonged, so that the clamping plate 4 can be detached from the base 1, and the workpiece can be clamped and fixed on the positioning plate 2;

And when the workpiece with larger size is required to be clamped and fixed, the pressing block 510 does not need to fix the extension plate 51 any more, the springs 56 can push the vertical blocks 54 to move in the inner cavity of the transverse plate 53 under the action of the elasticity of the springs 56, so that the same group of two vertical blocks 54 can pull the extension plate 51 to move into the clamping plate 4, the length of the clamping plate 4 can be shortened, the length of the clamping plate 4 can be adjusted according to the size of the workpiece, so that the workpiece with different size can be conveniently clamped and fixed, and when the workpiece with different size is positioned and fixed, the clamping plate 4 does not need to be detached from the base 1, and the clamping plate 4 with different size is not required to be compared with the workpiece, so that the complexity of the equipment in clamping and fixing the workpiece with different size can be effectively reduced, and the application range can be increased.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. The plane positioning and clamping tool comprises a base (1) and is characterized in that a plurality of positioning plates (2) are fixed at the top end of the base (1), a plurality of fastening screws (3) are connected with the top end of the base (1) in a threaded mode, clamping plates (4) are fixed on the outer surfaces of the fastening screws (3), and extension assemblies (5) are arranged in the clamping plates (4);

Extension subassembly (5) include with two extension boards (51) of the inside sliding connection of splint (4), two the top of extension board (51) is fixed with two link board (52), extension subassembly (5) still include with two diaphragm (53) of splint (4) top fixed, both ends all are fixed with upright piece (54) around link board (52), the top of upright piece (54) is fixed with branch piece (55), control two sets of spring (56) of upright piece (54) opposite side, extension subassembly (5) still including set up the location structure with two diaphragm (53) tops.

2. The planar positioning and clamping tool according to claim 1, wherein the clamping plate (4) is in a rectangular shape with hollow inside and missing left and right ends, and the two transverse plates (53) are in a rectangular shape with hollow inside and missing lower ends.

3. The planar positioning and clamping tool as set forth in claim 1, wherein two slide holes are formed in the left end and the right end of the top end of the clamping plate (4), and the vertical block (54) penetrates into the slide holes and is connected with the slide holes in a sliding mode.

4. The planar positioning and clamping tool as set forth in claim 1, wherein the supporting block (55) is T-shaped, two sliding grooves are formed in the top of the inner cavity of the transverse plate (53), and the supporting block (55) is located on the inner side of the sliding grooves and is in sliding connection with the sliding grooves.

5. The planar positioning and clamping tool as set forth in claim 1, wherein the positioning structure comprises two screws (57) rotatably connected with the top end of the clamping plate (4) through bearings, a rotating handle (58) is fixed at the top end of each screw (57), a moving block (59) is connected to the outer surface of each screw (57) in a threaded mode, and a pressing block (510) is fixed at the lower end of each moving block (59).

6. The planar positioning and clamping tool as set forth in claim 5, wherein through holes are formed in the left end and the right end of the top end of the transverse plate (53), and the pressing block (510) penetrates through the through holes to the inside of the transverse plate (53) and is connected with the transverse plate in a sliding mode.

7. The planar positioning and clamping tool according to claim 5, wherein two screws (57) are located between the front transverse plate (53) and the rear transverse plate (53), threaded holes are formed in the top ends of the moving blocks (59), and the screws (57) penetrate through the inner sides of the threaded holes and are in threaded connection with the threaded holes.