CN211759865U

CN211759865U - CNC positioning fixture

Info

Publication number: CN211759865U
Application number: CN201922444820.0U
Authority: CN
Inventors: 王豪杰; 朱乃颂; 丁泽民
Original assignee: Dongguan Lingjie Metal Precision Manufacturing Technology Co Ltd
Current assignee: Dongguan Lingjie Metal Precision Manufacturing Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-27
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a CNC positioning fixture, include: the exchange plate is provided with a V-shaped groove block for limiting the placing positions of the products in the X direction and the Z direction; the spring mechanism is arranged on the inner side of the V-shaped groove block, and the elastic end of the spring mechanism horizontally faces the V-shaped groove block; the positioning block is arranged on the outer side of the V-shaped groove block; the pressing plate is movably arranged on the V-shaped groove block and the positioning block, a processing through hole is formed in the pressing plate corresponding to a product, and the pressing plate is used for pressing the product. Due to the fact that the V-shaped groove blocks are arranged to limit the placement position of the products in the direction of X, Z, the products cannot swing randomly after being placed; set up the locating position that spring mechanism and locating piece can inject product Y ascending orientation, realize the accurate positioning to the product, reuse clamp plate compresses tightly the product at the clamping last, improves personnel's clamping stability, reduces harmfulness such as the three injuries that processing caused, and simple structure, can practice thrift the cost by a wide margin.

Description

CNC positioning fixture

Technical Field

The utility model relates to a CNC adds clamping apparatus field, in particular to CNC positioning fixture.

Background

At present, the CNC machining of stainless steel sectional materials in the market is limited by automation degree and machine space, a profiling positioning machining mode is mostly selected, the clamping cost is relatively too high, the requirement on a clamping method is high, defective products such as three injuries are easily generated, and the customer satisfaction and the profit are improved when batch production is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a CNC positioning fixture to solve the aforesaid in stainless steel section bar CNC course of working, the problem of clamping tool with high costs, clamping gimmick requirement height, easy production defective products.

According to an aspect of the utility model, a CNC positioning fixture is provided, include: the exchange plate is provided with a V-shaped groove block for limiting the placing positions of the products in the X direction and the Z direction; the spring mechanism is arranged on the inner side of the V-shaped groove block, and the elastic end of the spring mechanism horizontally faces the V-shaped groove block; the positioning block is arranged on the outer side of the V-shaped groove block, and a limiting groove used for limiting the Y-direction placement position of a product is arranged on the positioning block; the pressing plate is movably arranged on the V-shaped groove block and the positioning block, a processing through hole is formed in the pressing plate corresponding to a product, and the pressing plate is used for pressing the product.

Due to the fact that the V-shaped groove blocks are arranged to limit the placement position of the products in the direction of X, Z, the products cannot swing randomly after being placed; set up the locating position that spring mechanism and locating piece can inject product Y ascending orientation, realize the accurate positioning to the product, reuse clamp plate compresses tightly the product at the clamping last, improves personnel's clamping stability, reduces harmfulness such as the three injuries that processing caused, and simple structure, can practice thrift the cost by a wide margin.

In order to better solve the technical defects, the utility model discloses still have better technical scheme:

in some embodiments, the spring mechanism comprises a mitsunmi spring; a fixed stop block is arranged between the Missimi spring and the V-shaped groove block; the fixed stop block is provided with a through hole corresponding to the elastic end of the Missimi spring. From this, set up fixed dog between spring mechanism and V type tank piece, can prevent that spring mechanism and V type tank piece from taking place the collision and causing the wearing and tearing influence precision in equipment or course of working.

In some embodiments, the spring end of the Misemer spring is provided with a knock block for contacting the product. Therefore, the ejector pin block can better protect the contact surface of a product and prevent damage.

In some embodiments, the spring mechanism is disposed in the middle of the exchange plate, and the spring mechanism is provided with a mitsubishi spring on both sides, and a fixed stop, a V-shaped groove block, a positioning block and a pressing plate matched with the spring mechanism. From this, can set up two sets of products on the exchange board, improve machining efficiency.

In some embodiments, the exchange plate, the spring mechanism, the positioning block and the pressing plate are all provided with positioning holes; the spring mechanism, the positioning block and the pressing plate are fixed on the exchange plate through inserting positioning pins. From this, through locating hole and the locating pin cooperation on each subassembly, can be fast the clamping product and the installation dismantlement anchor clamps.

In some embodiments, handles are provided on both sides of the exchange panel. From this, set up the handle and can be fixed the product on the board of exchanging, manual will exchange on the board shifts the processing machine tool, convenient and fast more.

Drawings

Fig. 1 is a schematic perspective view of a CNC positioning fixture according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a spring mechanism of a CNC positioning fixture according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a CNC positioning fixture with a pressing plate removed according to an embodiment of the present invention;

fig. 4 is a schematic structural view illustrating a positioning block of a CNC positioning fixture is mounted on an exchange plate according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an interchangeable plate structure of a CNC positioning fixture according to an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides a CNC positioning fixture, include: the exchange plate 1 is provided with a V-shaped groove block 11 on the surface for limiting the placing positions of the products in the X direction and the Z direction; the spring mechanism 2 is arranged on the inner side of the V-shaped groove block 11, and the elastic end of the spring mechanism 2 horizontally faces the V-shaped groove block 11; the positioning block 3 is arranged on the outer side of the V-shaped groove block 11, and a limiting groove 31 for limiting the Y-direction placement position of a product is arranged on the positioning block 3; the pressing plate 4 is movably arranged on the V-shaped groove block 11 and the positioning block 3, a processing through hole 41 is formed in the pressing plate 4 corresponding to a product, and the pressing plate 4 is used for pressing the product tightly.

The technical solution of the present invention can be more easily understood by referring to XYZ coordinates of fig. 1 to 5.

The embodiment is suitable for processing cylindrical products.

The surface of the exchange plate 1 is provided with a positioning hole and two rows of raised V-shaped groove blocks 11, and the V-shaped groove blocks 11 are provided with positioning holes matched with the pressing plate 4; the V-shaped groove block 11 is arranged towards the Y direction; the V-shaped groove 11 is used for placing cylindrical products to limit the placing positions of the products in the X direction and the Z direction.

A spring mechanism 2, the spring mechanism 2 comprising a Misimo spring; the spring mechanism 2 is arranged between the two rows of V-shaped groove blocks 11, a fixture fixing stop 21 for preventing the spring mechanism 2 and the V-shaped groove blocks 11 from being damaged in the assembling process is also arranged between the spring mechanism 2 and the V-shaped groove blocks 11, and a through hole is formed in the fixing stop 21 corresponding to the elastic end of the Missimi spring; the elastic end of the Missimi spring is provided with a top pin block 22 which is used for contacting with a product; the spring mechanism 2 is provided with a positioning hole and can be fixed on the exchange plate 1 through the positioning pin;

the elastic end of the mitre spring acts on the Y axis, and each ejector pin block 22 arranged on the mitre spring acts in the V-shaped groove block 11 along the Y direction.

The positioning block 3 is arranged on the outer side of the V-shaped groove block 11, a limiting groove 31 used for limiting the Y-direction placing position of a product is formed in the positioning block 3, the product can abut against the limiting groove 31 of the positioning block 3 under the elastic action of the Misimi spring, and therefore the product is fixed and prevented from swinging in the Y direction.

The working points of the ejector pin block 22, the V-shaped groove block 11 and the limiting groove 31 are on the same straight line.

A pressing plate 4 for pressing the product; the pressing plate 4 is movably arranged on the V-shaped groove block 11 and the positioning block 3, and a processing through hole 41 is formed in the position, corresponding to the product placement position, of the pressing plate 4; after the product is clamped, the machining tool machines the product through the machining through hole 41.

When the clamp is assembled, firstly, the middle ejector pin block 22 is fixed at the extension end of the Missimi spring of the spring mechanism 2, the fixed stop blocks 21 are fixed at two sides of the spring mechanism 2, and the ejector pin block 22 penetrates through the through holes in the fixed stop blocks 21 and extends out of the through holes in the fixed stop blocks 21; arranging the spring mechanism 2 provided with the fixed baffle 21 between the two rows of V-shaped groove blocks 11 on the interchange plate 1, inserting the positioning pins into the positioning holes in the spring mechanism 2, and fixing the spring mechanism 2; and a positioning block 3 is fixed on the other side of the V-shaped groove block 11 through a positioning pin, and the clamp is assembled preliminarily.

Before processing, one end of the product is obliquely pressed against the ejector pin block 22 to enable the product to fall into the V-shaped groove block 11, and then the other end of the product is clamped to the limiting groove 31 to enable the product to abut against the limiting groove 11 under the pressure of the ejector pin block 22; after the products are completely placed, the pressing plate 4 is fixed on the V-shaped groove block 11 and the positioning block 3 through the positioning pins, the processing through hole 41 in the pressing plate 4 exposes the surface of the product to be processed, the bottom surface of the pressing plate 4 tightly presses the products on the V-shaped groove block 11, and preparation before processing is completed.

During processing, the exchange plate 1 with the fixed product is manually placed on a processing machine tool for processing.

After processing, the positioning pin on the pressing plate 4 is taken out, and the pressing plate 4 is disassembled; the processed product is forced onto the knock-out block 22, the processed product is taken out, and the preparation steps before processing are repeated.

The above description is only some embodiments of the present invention, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept, and these modifications and improvements all belong to the protection scope of the present invention.

Claims

1. A CNC positioning fixture, comprising:

the exchange plate (1) is provided with a V-shaped groove block (11) for limiting the placing positions of the products in the X direction and the Z direction on the surface;

the spring mechanism (2) is arranged on the inner side of the V-shaped groove block (11), and the elastic end of the spring mechanism (2) horizontally faces the inside of the V-shaped groove block (11);

the positioning block (3) is arranged on the outer side of the V-shaped groove block (11), and a limiting groove (31) used for limiting the Y-direction placing position of a product is arranged on the positioning block (3);

the pressing plate (4) is movably arranged on the V-shaped groove block (11) and the positioning block (3), a processing through hole (41) is formed in the pressing plate (4) corresponding to a product, and the pressing plate (4) is used for pressing the product.

2. The CNC positioning fixture according to claim 1, characterized in that the spring mechanism (2) comprises a mitre spring; a fixed stop block (21) is arranged between the Missimi spring and the V-shaped groove block (11); the fixed stop block (21) is provided with a through hole corresponding to the elastic end of the Missimi spring.

3. The CNC positioning fixture according to claim 2, characterized in that the spring end of the mig spring is provided with a knock block (22) for contacting with the product.

4. The CNC positioning clamp according to claim 3, wherein the spring mechanism (2) is arranged in the middle of the exchange plate (1), and both sides of the spring mechanism (2) are provided with a Missimi spring and a fixed stop block (21), a V-shaped groove block (11), a positioning block (3) and a pressing plate (4) matched with the Missimi spring.

5. The CNC positioning clamp according to claim 1, wherein the exchange plate (1), the spring mechanism (2), the positioning block (3) and the pressing plate (4) are provided with positioning holes; the spring mechanism (2), the positioning block (3) and the pressing plate (4) are fixed on the exchange plate (1) through inserting positioning pins.

6. CNC positioning fixture according to claim 1, characterized in, that the exchange plate (1) is provided with handles (12) on both sides.