CN220330622U

CN220330622U - Anchor clamps are used in CNC processing

Info

Publication number: CN220330622U
Application number: CN202321843376.XU
Authority: CN
Inventors: 刘星
Original assignee: Huizhou Shenghua Industrial Co ltd; Huizhou Goldman Sachs Precision Co ltd
Current assignee: Huizhou Shenghua Industrial Co ltd; Huizhou Goldman Sachs Precision Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-12
Anticipated expiration: 2033-07-13

Abstract

The utility model relates to the technical field of machining, in particular to a clamp for CNC machining, which comprises a workbench, a fixing frame, a clamp and a workpiece, wherein the fixing frame is arranged at the upper end of the workbench; the fixture comprises an upper fixture body and a lower fixture body, the upper fixture body is fixedly connected with the fixing frame through the support, the lower fixture body is movably connected with the fixing frame through the lifting assembly, the lower fixture body is controlled to move up and down through the lifting assembly to clamp a workpiece, slotting and punching are concentrated in a machining center, machining efficiency is improved, the workpiece is fixed through the positioning device, and the workpiece is further fixed through the anti-falling mechanism, so that the workpiece is prevented from falling.

Description

Anchor clamps are used in CNC processing

Technical Field

The utility model relates to the technical field of machining, in particular to a clamp for CNC machining.

Background

The CNC processing machine is a computerized numerical control machine tool, is an automatic machine tool controlled by a program, can logically process a program (G code) specified by a control code or other symbol instructions, decodes the program through a computer, tells a processing cutter of the numerical control machine tool what Cartesian position coordinates are adopted, and controls the feeding speed and the spindle rotating speed of the cutter, so that the machine tool action can finish operations such as cutting, drilling and the like on a workpiece, and is commonly used for processing various mechanical products and shell products, such as an intelligent video conference integrated machine shell, a liquid crystal television shell, a chassis shell and the like.

The existing CNC machining equipment needs to fix the workpiece by using a clamp when machining part of the workpiece so as to prevent the workpiece from shaking during machining;

as disclosed in chinese patent publication No. CN207239768U, a CNC processing fixture is disclosed, which uses a carrier plate to provide a placing space for a bottom shell, and uses a driving cylinder to drive an effect of a pressing plate to move, so that the pressing plate can select a pressing carrier plate or the bottom shell according to different conditions of CNC processing on an inner surface and a back surface of the bottom shell, but in actual production, a shell needs operations such as slotting and perforating, and the existing processing fixture cannot meet the above requirements, so that the shell needs to be transferred to different processing devices during processing, thereby not only increasing cost, but also increasing processing time, and affecting processing efficiency.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a clamp for CNC machining.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the fixture for CNC machining comprises a workbench, a fixing frame, a fixture and a workpiece, wherein the fixing frame is arranged at the upper end of the workbench, the fixture is arranged on the fixing frame, and the workpiece is arranged in the fixture;

the fixture comprises a fixture body, a fixing frame, a workpiece, a punching device and a clamping device, wherein both sides of the fixture body are respectively provided with a slotting component, and the punching device matched with the workpiece is arranged above the fixing frame;

the fixture comprises an upper fixture body and a lower fixture body, wherein the upper fixture body is fixedly connected with the fixing frame through a bracket, and the lower fixture body is movably connected with the fixing frame through a lifting assembly.

Further, one end of the upper clamp body, which is far away from the punching device, is provided with a plurality of positioning devices matched with the workpiece.

Further, the positioning device is a positioning glass bead.

Furthermore, anti-falling mechanisms matched with the lower clamp body and the workpiece are further arranged on two sides of the clamp.

Further, the anti-falling mechanism comprises a linear cylinder fixedly arranged on the fixing frame, and a supporting component matched with the lower clamp body and the workpiece is arranged on an output shaft of the linear cylinder.

Further, the support assembly comprises an L-shaped plate and a support block, the L-shaped plate is detachably connected with the output shaft of the linear cylinder, and the support block is rotatably arranged on the L-shaped plate.

Further, the L-shaped plate is also provided with a limiting plate matched with the supporting block, and the lower clamp body is provided with a groove matched with the supporting block.

Further, the lifting assembly comprises a plurality of telescopic cylinders fixedly arranged on the fixing frame, an output shaft of each telescopic cylinder penetrates through the fixing frame and is fixedly connected with the lower clamp body, and a plurality of supporting pieces are fixedly arranged on the lower clamp body.

The clamp for CNC machining provided by the utility model has the beneficial effects that:

according to the utility model, the lifting assembly is used for controlling the lower clamp to move up and down to clamp a workpiece, the slotting assemblies on two sides are used for slotting the workpiece, the perforating device is used for perforating the shell, slotting and perforating are concentrated in one machining center, so that the cost is increased due to the fact that additional machining equipment is not added, the workpiece is not required to be transferred, and the machining efficiency is improved;

secondly, in the utility model, the workpiece is fixed by arranging the positioning device, so that the workpiece is prevented from falling and being damaged after the lower clamp body is separated from the upper clamp body, and the workpiece is further fixed by arranging the anti-falling mechanism, so that the workpiece is prevented from falling.

Drawings

Fig. 1 is a schematic structural diagram of a fixture for CNC machining according to the present utility model;

FIG. 2 is a schematic view of a linear cylinder according to the present utility model;

FIG. 3 is a schematic view of the structure of the support member of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the area a of the present utility model.

In the figure: 1. a work table; 2. a fixing frame; 3. a clamp; 31. an upper clamp body; 311. a positioning device; 32. a lower clamp body; 321. a support; 4. a workpiece; 5. a slotting component; 6. a punching device; 7. a bracket; 8. a lifting assembly; 81. a telescopic cylinder; 9. an anti-falling mechanism; 91. a straight line cylinder; 92. a support assembly; 921. an L-shaped plate; 922. a support block; 923. and a limiting plate.

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.

Referring to fig. 1 to 4, a clamp for CNC machining includes a table 1, a fixing frame 2, a clamp 3 and a workpiece 4, wherein the fixing frame 2 is disposed at the upper end of the table 1, the clamp 3 is disposed on the fixing frame 2, and the workpiece 4 is disposed in the clamp 3;

wherein, the two sides of the clamp 3 are provided with slotting components 5, and a punching device 6 matched with the workpiece 4 is arranged above the fixing frame 2;

the fixture 3 is composed of an upper fixture 31 and a lower fixture 32, the upper fixture 31 is fixedly connected with the fixed frame 2 through the bracket 7, and the lower fixture 32 is movably connected with the fixed frame 2 through the lifting assembly 8.

In the present utility model, the upper clamping body 31 and the lower clamping body 32 are provided to cooperate to clamp the workpiece 4, so as to facilitate the slotting component 5 and the punching device 6 to slotting and punching the workpiece 4.

Further, in this embodiment, a plurality of positioning devices 311 matched with the workpiece 4 are disposed at one end of the upper clamping body 31 away from the punching device 6 to fix the workpiece 4, so as to prevent the workpiece 4 from falling off from the upper clamping body 31 after the lower clamping body 32 is separated.

Still further, in some embodiments, the positioning device 311 is a positioning bead.

In this embodiment, the two sides of the clamp 3 are further provided with anti-falling mechanisms 9 that are matched with the lower clamp 32 and the workpiece 4, so that the workpiece 4 is further supported, and the clamp is matched with the positioning glass beads to double-fix the workpiece 4, so that falling is prevented, and clamping precision is improved.

In this embodiment, the anti-falling mechanism 9 includes a linear cylinder 91 fixedly arranged on the fixing frame 2, a support assembly 92 matched with the lower clamp 32 and the workpiece 4 is arranged on an output shaft of the linear cylinder 91, and the support assembly 92 is controlled to move upwards by the linear cylinder 91 to support the workpiece 4, so that falling is prevented.

That is, in the present embodiment, the support member 92 includes the L-shaped plate 921 and the support block 922, the L-shaped plate 921 is detachably connected with the output shaft of the linear cylinder 91, the support block 922 is rotatably provided on the L-shaped plate 921, and when the output shaft of the linear cylinder 91 is extended, the support block 922 abuts against the workpiece 4 to support and fix the workpiece 4, preventing the workpiece 4 from being damaged by falling.

In some embodiments, the L-shaped plate 921 is further provided with a limiting plate 923 matched with the supporting block 922, the lower clamp body 32 is provided with a groove matched with the supporting block 922, when the output shaft of the linear cylinder 91 retracts, the supporting block 922 on the L-shaped plate 921 is clamped into the groove to accommodate the supporting block 922, and the workpiece 4 is convenient to install and replace.

In more detail, in this embodiment, the lifting assembly 8 includes a plurality of telescopic cylinders 81 fixedly disposed on the fixing frame 2, and an output shaft of each telescopic cylinder 81 penetrates through the fixing frame 2 and is fixedly connected with the lower clamp 32, so as to control movement of the lower clamp 32 to clamp and fix the workpiece 4, and a plurality of supporting members 321 are fixedly disposed on the lower clamp 32, and the supporting members 321 are soft structures, preferably high-strength glue supporting members.

The working mode is as follows; during operation, the workpiece 4 is fixed on the upper clamp 31, the workpiece 4 is fixed through the positioning device 311, the lower clamp 32 is controlled to move upwards through the telescopic cylinder 81 to clamp and fix the workpiece 4, meanwhile, the output shaft of the linear cylinder 91 extends out, the supporting block 922 is abutted with the workpiece 4 to support and fix the workpiece 4, and after the fixing is completed, a side milling cutter is adopted to process slotting and punching;

after the processing is completed, the lower clamp body 32 is controlled to move downwards through the telescopic air cylinder 81, the clamping of the workpiece 4 is released, the output shaft of the linear air cylinder 91 is retracted, the supporting block 922 on the L-shaped plate 921 is clamped into the groove, and then the workpiece 4 is taken down to be replaced by a new workpiece 4, so that the processing is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The fixture for CNC machining comprises a workbench (1), a fixing frame (2), a fixture (3) and a workpiece (4), and is characterized in that the fixing frame (2) is arranged at the upper end of the workbench (1), the fixture (3) is arranged on the fixing frame (2), and the workpiece (4) is arranged in the fixture (3);

the fixture comprises a fixture body, a fixing frame (2) and a workpiece (4), wherein both sides of the fixture body (3) are provided with slotting components (5), and a punching device (6) matched with the workpiece (4) is arranged above the fixing frame (2);

the fixture (3) is composed of an upper fixture body (31) and a lower fixture body (32), the upper fixture body (31) is fixedly connected with the fixing frame (2) through a bracket (7), and the lower fixture body (32) is movably connected with the fixing frame (2) through a lifting assembly (8).

2. The CNC machining fixture of claim 1, wherein: one end of the upper clamp body (31) far away from the punching device (6) is provided with a plurality of positioning devices (311) matched with the workpiece (4).

3. The CNC machining fixture of claim 2, wherein: the positioning device (311) is a positioning glass bead.

4. The CNC machining fixture of claim 1, wherein: and anti-falling mechanisms (9) matched with the lower clamp body (32) and the workpiece (4) are also arranged on two sides of the clamp (3).

5. The CNC machining fixture of claim 4, wherein: the anti-drop mechanism (9) comprises a linear air cylinder (91) fixedly arranged on the fixing frame (2), and a supporting component (92) matched with the lower clamp body (32) and the workpiece (4) is arranged on an output shaft of the linear air cylinder (91).

6. The CNC machining fixture of claim 5, wherein: the support assembly (92) comprises an L-shaped plate (921) and a support block (922), wherein the L-shaped plate (921) is detachably connected with an output shaft of the linear cylinder (91), and the support block (922) is rotatably arranged on the L-shaped plate (921).

7. The CNC machining fixture of claim 6, wherein: the L-shaped plate (921) is also provided with a limiting plate (923) matched with the supporting block (922), and the lower clamp body (32) is provided with a groove matched with the supporting block (922).

8. The CNC machining fixture of claim 1, wherein: the lifting assembly (8) comprises a plurality of telescopic air cylinders (81) fixedly arranged on the fixing frame (2), an output shaft of each telescopic air cylinder (81) penetrates through the fixing frame (2) and is fixedly connected with the lower clamp body (32), and a plurality of supporting pieces (321) are fixedly arranged on the lower clamp body (32).