CN216371224U - A fixed fixture for CNC machining - Google Patents

Abstract

The utility model relates to a fixing clamp for CNC (computer numerical control) machining, which comprises a base body and a rotary clamping device connected to the base body, wherein the rotary clamping device comprises a clamping head and a clamping head; the base body comprises a base and a vertical plate; the vertical plate is arranged on the base along the vertical direction; the rotary clamping device comprises a corner cylinder and a rocker arm connected to the corner cylinder; the corner cylinder penetrates through the vertical plate and is fixed on one side of the vertical plate; one end of the rocker arm is connected with the corner cylinder, and the other end of the rocker arm is provided with a pressing assembly capable of rebounding so as to play a role in buffering in the process of pressing a product; the fixing clamp for CNC machining provided by the utility model solves the problems of low production efficiency, high rejection rate and poor positioning effect in the prior art.

Description

A fixed fixture for CNC machining

technical field

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

Background technique

In contemporary times, with the rapid development of science and technology, CNC fixtures are becoming more and more popular in the field of machinery manufacturing; fixtures are used to clamp and fix product workpieces during CNC machining of workpieces, thereby enhancing the accuracy of product workpiece positions;

However, during the clamping process of the existing CNC fixture, the rigid pressure is directly applied to the product workpiece, which will cause the product workpiece to sag, deform, damage the product workpiece, low production efficiency, and high scrap rate; and the existing CNC fixture is usually used alone. The positioning pin positions and clamps the product workpiece. If there is a certain deviation between the positioning pin and the positioning hole on the product workpiece, the product workpiece will shake or even fall off, the positioning stability is poor, and the positioning effect is not good; therefore, Existing fixtures can no longer meet the needs of contemporary CNC machining.

Utility model content

Based on this, the present invention provides a fixing fixture for CNC machining, which solves the problems of low production efficiency, high scrap rate and poor positioning effect in the prior art.

In order to realize the purpose of the present utility model, the present utility model adopts the following technical solutions:

A fixing fixture for CNC machining, comprising a base body and a rotary clamping device connected to the base body; the base body comprises a base and a vertical plate; the vertical plate is arranged on the base along a vertical direction; The rotary clamping device comprises a corner cylinder and a rocker arm connected to the corner cylinder; the corner cylinder penetrates through the vertical plate and is fixed to one side of the vertical plate; one end of the rocker arm is connected to In the corner cylinder, the other end of the rocker arm is provided with a resilient pressing component for buffering in the process of pressing the product.

In one embodiment, the pressing component includes a spring, a guide post, a mounting head for adjusting the rebound stroke of the guide post, and a pressing block; the spring is sleeved on the guide post, and the One end of the guide post penetrates the rocker arm and is connected to the mounting head, and the pressing block is provided on the other end of the guide post.

In one embodiment, a first counterbore is provided on one side of the vertical plate, and a second counterbore is provided on the other side of the vertical plate.

In one of the embodiments, it further includes a guide device passing through the base body; the guide device includes a positioning pin and a foolproof pin; the positioning pin and the foolproof pin penetrate through the first countersunk hole on the vertical plate.

In one of the embodiments, it further includes a flexible suction cup embedded in the base body; the flexible suction cup is embedded on the vertical plate through the second counterbore.

In one embodiment, a pneumatic joint is provided on the corner cylinder, and the pneumatic joint is also provided on the vertical plate at a position corresponding to the flexible suction cup.

In one embodiment, a support block for supporting the vertical plate is provided between the base and the vertical plate, so as to enhance the stability of the vertical plate.

The utility model provides a fixing fixture for CNC machining, and the beneficial effects achieved are:

In the present invention, the rotary clamping device is arranged on the vertical plate, the rocker arm is provided with the pressing component, and the pressing component is resilient and can be adjusted by the mounting head The rebound distance of the pressing block can avoid damage to the product workpiece, improve production efficiency, and reduce the scrap rate of the product workpiece; in addition, the flexible suction cup is embedded on the vertical plate, and the guide device is inserted through The vertical plate improves the stability of the fixture for positioning the product workpiece, and enhances the positioning effect for the product workpiece.

Description of drawings

1 is a schematic perspective view of a fixing fixture for CNC machining according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of another perspective view of a fixing fixture for CNC machining shown in FIG. 1;

3 is a partial cross-sectional view of a rocker arm in a fixed fixture for CNC machining shown in FIG. 2;

FIG. 4 is a schematic perspective view of a fixing fixture for CNC machining shown in FIG. 1 from another perspective;

FIG. 5 is a top view from another perspective of a fixing jig for CNC machining shown in FIG. 1 .

Description of the attached drawings:

10-base body, 11-base, 12-upright plate, 13-adjustment hole;

20-swing clamping device, 21-swing angle cylinder, 22-rocker arm, 23-pressing assembly, 24-first bolt, 25-second bolt, 26-spring, 27-guide post, 28-installation head, 29 - briquetting;

30-guide device, 31-positioning pin, 32-fool-proof pin;

40-flexible suction cup;

50-Pneumatic connector;

60 - Support block.

Detailed ways

In order to facilitate the understanding of the present utility model, the present utility model will be more fully described below with reference to the related drawings. The preferred embodiments of the present utility model are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

1 to 5 , a fixing fixture for CNC machining includes a base body 10 , a rotary clamping device 20 connected to the base body 10 , a guide device 30 passing through the base body 10 , and a flexible suction cup embedded in the base body 10 40.

The base body 10 includes a base 11 and a vertical plate 12; the base 11 is provided with an adjustment hole 13, so that the clamp can be installed on the workbench; A counterbore, and the other side of the vertical plate 12 is provided with a second counterbore.

The rotary clamping device 20 includes a corner cylinder 21 and a rocker arm 22 sleeved on the corner cylinder 21; the corner cylinder 21 penetrates through the vertical plate 12 and is fixed on one side of the vertical plate 12; one end of the rocker arm 22 is connected to the corner cylinder 21 , the other end of the rocker arm 22 is provided with a resilient pressing component 23 .

In this embodiment, the corner cylinder 21 is fixed on the vertical plate 12 through the first bolt 24, and the rocker arm 22 is connected to the corner cylinder 21 through the second bolt 25; in other embodiments, other methods can also be used for fixing, It only needs to be stably fixed, and is not limited to the fixing method in this embodiment.

The pressing assembly 23 includes a spring 26, a guide post 27, a mounting head 28 for adjusting the rebound stroke of the guide post 27, and a pressure block 29; the guide post 27 is sleeved with a spring 26, and one end of the guide post 27 penetrates the rocker arm 22 After connecting with the mounting head 28, the other end of the guide post 27 is provided with a pressing block 29.

In this embodiment, the pressure block 29 is a circular shape of rubber material; in other embodiments, it can also be made of other materials and shapes, so that the pressure block 29 can be closely attached to the product workpiece without damaging the product workpiece. Yes, it is not limited to the materials and shapes in this embodiment.

In this embodiment, the rebound stroke of the guide post 27 can be adjusted by the mounting head 28 to prevent damage to the product workpiece when the rebound stroke is too large, and the product workpiece is not pressed properly when the rebound stroke is too small When the pressure block 29 is pressed against the product workpiece, the spring 26 cooperates with the guide post 27 to play a certain buffering effect when the pressure block 29 is pressed against the product workpiece, avoiding the direct pressing of the pressure block 29. Depression, deformation, etc. caused to the product workpiece during the product workpiece.

The guide device 30 includes a positioning pin 31 and a foolproof pin 32 ; the positioning pin 31 and the foolproof pin 32 penetrate through the vertical plate 12 through the first counterbore.

In this embodiment, the positioning pins 31 are made of stainless steel, and the foolproof pins 32 are made of PVC; in other embodiments, the positioning pins 31 can also be made of aluminum, and the foolproof pins 32 can also be made of bakelite Made of material, the positioning pin 31 can accurately locate the workpiece and wear-resistant, and the fool-proof pin 32 will not cause damage to the workpiece and is wear-resistant, and is not limited to the material used in this embodiment.

In this embodiment, the positioning pin 31 can make the position of the product workpiece more accurate, and there will be no position deviation, so as to facilitate the CNC machining of the product workpiece; in the process of placing the product workpiece on the fixture, the foolproof pin 32 can effectively avoid the misoperation of the product workpiece, thereby reducing the damage to the product workpiece.

The flexible suction cup 40 embedded on the base body 10; the flexible suction cup 40 is embedded on the vertical plate 12 through the second countersunk hole.

In this embodiment, the flexible suction cup 40 is used to adsorb the product workpiece placed on the fixture, which can improve the positioning accuracy and enhance the stability of the product workpiece on the fixture. Falling will occur.

The corner cylinder 21 is provided with a pneumatic joint 50 , and the position corresponding to the flexible suction cup 40 on the vertical plate 12 is also provided with a pneumatic joint 50 . In this embodiment, the pneumatic joint 50 is an upright joint; in other embodiments, the pneumatic joint 50 can also be an angled joint, which is convenient for installation and convenient for connecting to the air source, which is not limited to this embodiment. upright connector.

A support block 60 for supporting the vertical plate 12 is provided between the base 11 and the vertical plate 12 to enhance the stability of the vertical plate 12 .

Working principle: First, connect the pneumatic connector 50 corresponding to the rotary clamping device 20 to the air source, and connect the pneumatic connector 50 corresponding to the flexible suction cup 40 to the pneumatic switch and then connect the air source, and then place the product workpiece according to the preset position. , and align the positioning holes on the product workpiece with the foolproof pins 32 and the positioning pins 31 and place them on the fixture. After adjusting the travel of the guide posts to an appropriate distance, normal production can be started.

The above-mentioned fixed fixture for CNC machining has the following beneficial effects:

In the present invention, the rotary clamping device 20 is arranged on the vertical plate 12 , and the rocker arm 22 is provided with a pressing component 23 . In addition, the vertical plate 12 is embedded with a flexible suction cup 40, and the guide device 30 is penetrated through the vertical plate 12, which improves the positioning of the fixture to the product workpiece. The stability of the product enhances the positioning effect of the product workpiece.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (7)

1. A mounting fixture for CNC machining, comprising:

a substrate; the base body comprises a base and a vertical plate; the vertical plate is arranged on the base along the vertical direction;

a rotary clamping device connected to the base; the rotary clamping device comprises a corner cylinder and a rocker arm connected to the corner cylinder; the corner cylinder penetrates through the vertical plate and is fixed on one side of the vertical plate; one end of the rocker arm is connected to the corner cylinder, and the other end of the rocker arm is provided with a pressing assembly capable of rebounding so as to play a role in buffering in the process of pressing a product.

2. The fixture for CNC machining of claim 1, wherein the hold-down assembly includes a spring, a guide post, a mounting head for adjusting a rebound stroke of the guide post, and a press block; the spring is sleeved on the guide pillar, one end of the guide pillar penetrates through the rocker arm and then is connected with the mounting head, and the pressing block is arranged at the other end of the guide pillar.

3. The fixture for CNC machining of claim 1, wherein one side of the vertical plate is provided with a first counter bore and the other side of the vertical plate is provided with a second counter bore.

4. The fixture for CNC machining of claim 3, further comprising a guide through the base; the guide device comprises a positioning pin and a fool-proof pin; the locating pin and the fool-proof pin penetrate through the vertical plate through the first counter bore.

5. The fixture for CNC machining of claim 3, further comprising a flexible suction cup embedded in the base; the flexible sucker is embedded on the vertical plate through the second counter bore.

6. The fixture of claim 5, wherein the corner cylinder has a pneumatic connector, and the pneumatic connector is located on the vertical plate at a position corresponding to the flexible suction cup.

7. The fixing clamp for CNC machining according to claim 1, wherein a supporting block for supporting the vertical plate is disposed between the base and the vertical plate to enhance stability of the vertical plate.

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