CN111347269A

CN111347269A - Quick clamp for small numerical control machine tool

Info

Publication number: CN111347269A
Application number: CN201811580132.0A
Authority: CN
Inventors: 章叶; 言建平; 徐跃
Original assignee: Changzhou Wujin Shuanghu Grain And Oil Machinery Co ltd
Current assignee: Changzhou Wujin Shuanghu Grain And Oil Machinery Co ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2020-06-30

Abstract

The invention discloses a rapid clamp for a small numerical control machine tool, which is used for clamping a workpiece to be machined during machining and comprises a base, guide grooves are symmetrically formed in the front side and the rear side of the base, slide rails are arranged in the guide grooves, a first clamping block and a mounting plate are arranged at the top of the base, a trapezoidal limiting boss is arranged at the bottom of the first clamping block and movably embedded on the base, an inverted U-shaped support is fixed at the top of the mounting plate, L-shaped plates are arranged at two end parts of the inverted U-shaped support, the horizontal part of the L-shaped plates is slidably connected with the slide rails, a second clamping block is fixed at one side, close to the first clamping block, of the mounting plate through a fixing stud, a first arc surface and a second arc surface which are matched with the workpiece to be machined are respectively arranged on the first clamping block. The clamp clamps the workpiece to be machined through the two clamping blocks, the clamping performance is good, the surface of the workpiece is not damaged, the process error can be effectively reduced, meanwhile, the two clamping blocks are flexible to assemble, and the replacement operation is convenient.

Description

Quick clamp for small numerical control machine tool

Technical Field

The invention belongs to the technical field of machine tool machining, relates to a clamp, and particularly relates to a quick clamp for a small numerical control machine tool.

Background

When a precision part is machined, most of workpieces to be machined are spherical or cambered workpieces, the workpieces to be machined are difficult to clamp in place, machining or detection is caused to have large errors, clamping force of the clamp needs to be increased in order to prevent the loosening condition from occurring in the clamping process, and the surfaces of the workpieces to be machined are easy to damage. In addition, for workpieces to be machined of different specifications, corresponding clamps need to be manufactured again, the adjusting difficulty is high, and the operation is complicated.

Disclosure of Invention

The invention aims to solve the technical problem of providing a rapid clamp for a small numerical control machine tool, which has the advantages of simple structure, flexible assembly and good clamping property and can effectively reduce the process error.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a small-size quick fixture for digit control machine tool, a machined part is treated in the centre gripping for machine tooling, the on-line screen storage device comprises a base, bilateral symmetry is equipped with the guide way around the base, be equipped with the slide rail in the guide way, the top of base is equipped with first clamp splice and mounting panel, the bottom of first clamp splice is equipped with trapezoidal spacing boss, spacing boss activity inlays on the base, the top of mounting panel is fixed with the type of falling U support, two tip of the type of falling U support are equipped with the L template, the horizontal part and the slide rail sliding connection of L template, one side that the mounting panel is close to first clamp splice is fixed with the second clamp splice through fixing stud, be equipped with respectively on first clamp splice and the second clamp splice and treat first cambered surface and the second cambered surface that the machined part suited.

The push-pull assembly comprises a screw rod and a support frame, one end of the screw rod is movably connected with a screw rod seat, the screw rod seat is fixed on the mounting plate, the other end of the screw rod penetrates through a threaded through hole in the support frame and then is driven by a speed reduction motor, and the support frame is fixed on the base.

And a through long slot is formed in the base below the guide groove.

And anti-slip pads are paved on the first cambered surface and the second cambered surface.

The limiting boss and the first clamping block are integrally formed.

The L-shaped plate and the inverted U-shaped support are integrally formed.

The invention has the advantages that: the clamp provided by the invention clamps the workpiece to be machined through the two clamping blocks, the clamping property is good, the surface of the workpiece is not damaged, the second clamping block is controlled by the push-pull assembly, automatic and rapid clamping is realized, the process error can be effectively reduced, meanwhile, the two clamping blocks are flexible to assemble, the replacement and operation are convenient, the clamp can adapt to the machining requirements of workpieces with different specifications, the structure is simple, and the machining requirements of a small numerical control machine can be met.

Drawings

The invention is described in further detail below with reference to the figures and the detailed description.

Fig. 1 is a schematic structural view of the present invention.

The device comprises a base 1, a base 2, a first clamping block 21, a first arc surface 22, a limiting boss 3, an inverted U-shaped support 31, an L-shaped plate 4, a mounting plate 5, a second clamping block 51, a second arc surface 52, a fixing stud 6, a screw rod 61, a screw rod seat 7, a support frame 8, a workpiece to be machined, 9, a guide groove 91, a slide rail 10 and a slot.

The specific implementation mode is as follows:

as shown in figure 1, a rapid clamp for a small numerical control machine tool is used for clamping a workpiece 8 to be machined (especially a spherical or cambered workpiece) during machining, and comprises a base 1, guide grooves 9 are symmetrically arranged on the front side and the rear side of the base 1, slide rails 91 are arranged in the guide grooves 9, a first clamping block 2 and a mounting plate 4 are arranged at the top of the base 1, a trapezoidal limiting boss 21 is arranged at the bottom of the first clamping block 2, the limiting boss 21 is movably embedded on the base 1, an inverted U-shaped support 3 is fixed at the top of the mounting plate 4, L-shaped plates 31 are arranged at two ends of the inverted U-shaped support 3, the horizontal part of the L-shaped plate 31 is slidably connected with the slide rails 91, a second clamping block 5 is fixed at one side of the mounting plate 4 close to the first clamping block 2 through a fixing stud 52, a first cambered surface 21 and a second cambered surface 51 which are matched with the workpiece 8 to be machined are respectively arranged on, the other side of the mounting plate 4 is provided with a push-pull assembly, the inverted-U-shaped support 3 is provided with a second clamping block 5 to reciprocate under the action of the push-pull assembly, and the two clamping blocks clamp and loosen a workpiece 8 to be machined.

In the invention, the push-pull assembly comprises a screw rod 6 and a support frame 7, one end of the screw rod 6 is movably connected with a screw rod seat 61, the screw rod seat 61 is fixed on the mounting plate 4, the other end of the screw rod 6 penetrates through a threaded through hole on the support frame 7 and then is driven by a speed reducing motor, the support frame 7 is fixed on the base 1, so that the second clamping block 5 can automatically and quickly move through the speed reducing motor, the support frame 7 enables the screw rod 6 to have better stability even if the length is longer, and the influence of the vibration of the speed reducing motor on the clamp is reduced.

Be equipped with the slot 10 of leading to long on the base 1 of guide way 9 below, the accessible slot 10 is with the whole corresponding installation position on the small-size digit control machine of embedding of anchor clamps, if breaks down can wholly take out and maintain, has reduced the maintenance degree of difficulty. In addition, spacing boss 22 and first clamp splice 2 integrated into one piece, L template 31 and the type of falling U support 3 integrated into one piece, both guaranteed that anchor clamps have higher intensity, also the dismouting of being more convenient for is maintained.

In order to further avoid the displacement of the workpiece 8 to be machined caused by material or wrong operation after being clamped, anti-slip pads can be laid on the first arc surface 21 and the second arc surface 51, and the anti-slip pads can prevent the displacement of the workpiece 8 to be machined and can also have a certain protection effect on the surface of the workpiece.

Claims

1. The utility model provides a small-size quick fixture for digit control machine tool for the centre gripping treats the machined part in the machine-hour, its characterized in that: the automatic welding device comprises a base, bilateral symmetry is equipped with the guide way around the base, be equipped with the slide rail in the guide way, the top of base is equipped with first clamp splice and mounting panel, the bottom of first clamp splice is equipped with trapezoidal spacing boss, spacing boss activity inlays on the base, the top of mounting panel is fixed with the type of falling U support, two tip of the type of falling U support are equipped with the L template, the horizontal part and the slide rail sliding connection of L template, one side that the mounting panel is close to first clamp splice is fixed with the second clamp splice through fixing stud, be equipped with respectively on first clamp splice and the second clamp splice and treat first cambered surface and the second cambered surface that the machined part suited, the opposite side of mounting panel is equipped with push-and-pull subassembly.

2. The rapid jig for small-sized numerically controlled machine tool according to claim 1, wherein: the push-pull assembly comprises a screw rod and a support frame, one end of the screw rod is movably connected with a screw rod seat, the screw rod seat is fixed on the mounting plate, the other end of the screw rod penetrates through a threaded through hole in the support frame and then is driven by a speed reduction motor, and the support frame is fixed on the base.

3. The rapid jig for small-sized numerically controlled machine tool according to claim 1, wherein: and a through long slot is formed in the base below the guide groove.

4. The rapid jig for small-sized numerically controlled machine tool according to claim 1, wherein: and anti-slip pads are paved on the first cambered surface and the second cambered surface.

5. The rapid jig for small-sized numerically controlled machine tool according to claim 1, wherein: the limiting boss and the first clamping block are integrally formed.

6. The rapid jig for small-sized numerically controlled machine tool according to claim 1, wherein: the L-shaped plate and the inverted U-shaped support are integrally formed.