CN203484938U - Clamp special for CNC thin-walled workpiece machining - Google Patents

Abstract

A special fixture for CNC machining thin-walled parts includes: a main fixture plate with an upward protrusion in the middle; several pressure blocks on both sides of the protrusion, which are connected to the main fixture plate and the protrusion via fixing devices; a reference hole on the protrusion of the main fixture plate, extending vertically through it; and a positioning device on the protrusion of the main fixture plate, extending forward and backward through it. This invention adjusts the clamping method and positioning reference, controlling workpiece deformation, making clamping easier and ensuring product accuracy, thus greatly improving the efficiency and stability of product machining.

Description

A special fixture for CNC machining thin-walled parts

technical field

The utility model relates to a special fixture for CNC machining thin-walled parts.

Background technique

The earlier fixture type is mainly composed of moving jaws and fixed jaws, and the type is relatively simple. The defects of this type are: it is easy to cause workpiece deformation, large dimensional deviation, and the parallelism dimension is very unstable, which affects the processing accuracy.

Utility model content

The technical problem to be solved by the utility model is to provide a special fixture for CNC machining thin-walled parts which can control the deformability of workpieces and improve production efficiency.

In order to solve the above problems, the utility model adopts the following technical scheme, a special fixture for CNC machining thin-walled parts, including: a fixture main board, the middle part of the fixture main board is provided with an upward protrusion; A briquetting block is arranged on both sides of the bulge, and the briquetting block is connected with the fixture main board and the bulge of the fixture main board through fixing devices respectively; the reference hole, the reference hole is arranged on the bulge of the fixture main board, and penetrates up and down Fixture main board; positioning device, the positioning device is arranged on the raised part of the fixture main board, and runs through the jig main board front and back.

Preferably, five pressure blocks are respectively provided on both sides of the raised portion of the main board of the clamp.

Preferably, the pressing blocks are arranged symmetrically.

As a preference, the pressing block and the fixture main board are connected together by M10 screws, and the pressing block and the raised part of the fixture main board are fixedly connected by M12 screws.

As a preference, there are M20 screws between the two pressure blocks on the same side, and the M20 screws go through the main board of the fixture.

Preferably, the positioning device is a positioning pin.

The utility model adjusts the clamping mode and the positioning reference, controls the deformability of the workpiece, not only facilitates the clamping but also ensures the precision of the product, and greatly improves the efficiency and stability of the product processing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Fixture main board; 2. M10 screw; 3. Press block; 4. Reference hole; 5. Locating pin; 6. M20 screw; 7. M12 screw.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Referring to Fig. 1 , a special fixture for CNC processing thin-walled parts includes: a fixture main board 1, the middle part of the fixture main board 1 is provided with an upward raised portion; Each side is provided with five briquetting blocks 3, and the briquetting blocks 3 are arranged symmetrically, and the briquetting blocks 3 are fixedly connected with the fixture main board 1 and the protrusions of the fixture main board 1 through M10 screws 2 and M12 screws 7 respectively; reference holes 4, The reference hole 4 is arranged on the raised part of the fixture main board 1, and runs through the fixture main board 1 up and down; the positioning device, the described positioning device is a positioning pin 5, which is arranged on the raised part of the fixture main board 1, and runs through the fixture back and forth. motherboard1.

As a preference, an M20 screw 6 is provided between the two pressure blocks 3 on the same side, and the M20 screw 6 runs through the fixture main board 1.

The utility model adjusts the clamping mode and the positioning reference, controls the deformability of the workpiece, not only facilitates the clamping but also ensures the precision of the product, and greatly improves the efficiency and stability of the product processing.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" means that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (6)

1. A special fixture for CNC processing thin-walled parts, characterized in that, comprising: The main board of the jig, the middle part of the main board of the jig is provided with an upward raised portion; Pressing blocks, the plurality of pressing blocks are arranged on both sides of the raised portion, and the pressing blocks are respectively connected to the fixture main board and the raised parts of the fixture main board through fixing devices; A reference hole, the reference hole is set on the raised part of the fixture main board, and runs through the fixture main board up and down; A positioning device, the positioning device is arranged on the raised part of the main board of the fixture, and runs through the main board of the fixture from front to back. 2 . The clamp according to claim 1 , wherein five pressure blocks are respectively provided on both sides of the raised portion of the main plate of the clamp. 3 . 3. The clamp according to claim 2, wherein the pressing blocks are arranged symmetrically. 4 . The clamp according to claim 1 , wherein the pressure block and the clamp main board are connected together by M10 screws, and the pressure block and the raised part of the clamp main board are fixedly connected by M12 screws. 5 . The fixture according to claim 2 , wherein M20 screws are arranged between the two pressing blocks on the same side, and the M20 screws penetrate through the mainboard of the fixture. 6 . 6. The clamp according to claim 1, wherein the positioning device is a positioning pin.

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