CN-122007958-A - CNC automatic material loading and taking device, CNC machining equipment and working method of CNC automatic material loading and taking device

CN122007958ACN 122007958 ACN122007958 ACN 122007958ACN-122007958-A

Abstract

The invention relates to a CNC automatic material loading and taking device, CNC processing equipment and a working method thereof, wherein the device comprises a material taking mechanism, a clamping mechanism and a material storage mechanism; the clamping mechanism comprises a double-layer workbench and a plurality of clamping assemblies, the clamping assemblies are respectively arranged on the double-layer workbench, each clamping assembly comprises a fixed pressing plate, a pressing unit and a plurality of side pressing units, each pressing unit comprises a pressing plate and a pull-down driving piece fixedly connected with the pressing plate, each side pressing unit comprises a side pressing plate and an upward pushing driving piece, and when a workpiece is clamped, the workpiece is clamped between the pressing plate and the horizontal plane of the fixed bench and between the side pressing plate and the vertical plane of the fixed bench. The invention can automatically load and unload materials without manual operation of operators, improves the production efficiency and eliminates the potential safety hazard in the clamping and clamping process.

Inventors

CHEN WUWEN
HU YUEXIN
ZHOU ZEMIN
CHEN MIN

Assignees

惠州市众瑞智能设备有限公司

Dates

Publication Date: 20260512
Application Date: 20241112

Claims (10)

1. The CNC automatic material loading and unloading device is characterized by comprising a material unloading mechanism, a clamping mechanism and a material storage mechanism; The material storage mechanism comprises a material table and a material tray arranged on the material table, and the material tray is used for storing workpieces; The material taking mechanism comprises a multi-station mechanical clamping jaw and a driving assembly, wherein the multi-station mechanical clamping jaw is used for clamping a plurality of workpieces on the material tray, and the driving assembly drives the multi-station mechanical clamping jaw to move between the material tray and the clamping mechanism; The clamping mechanism comprises a double-layer workbench and a plurality of clamping assemblies, wherein the clamping assemblies are respectively arranged on the double-layer workbench, the clamping assemblies comprise a fixed pressing plate, a pressing unit and a plurality of side pressing units, the pressing unit comprises a pressing plate and a pulling-down driving piece fixedly connected with the pressing plate, the fixed pressing plate is arranged on the upper layer of the double-layer workbench, the pressing plate is arranged above the fixed pressing plate, the pulling-down driving piece is arranged on the lower layer of the double-layer workbench, the side pressing units comprise side pressing plates and a pushing-up driving piece, the contact surface of the side pressing plates and the pushing-up driving piece is an inclined surface, and the side pressing plates are respectively arranged on the periphery of the fixed pressing plate; the side of the fixed pressing plate is provided with a circle of fixed terraced platform, the pressing plane of the lower pressing plate is opposite to the horizontal plane of the fixed terraced platform, the side pressing plane of the side pressing plate is opposite to the vertical plane of the fixed terraced platform, and when the workpiece is clamped, the workpiece is clamped between the lower pressing plate and the horizontal plane of the fixed terraced platform and between the side pressing plate and the vertical plane of the fixed terraced platform.
2. The CNC automatic loading and unloading device according to claim 1, wherein the pull-down driving member comprises a hydraulic cylinder and a pull-down auxiliary plate, the hydraulic cylinder is disposed at a lower layer of the double-layer workbench, a piston rod end of the hydraulic cylinder sequentially penetrates through an upper plate, the fixed pressing plate and the lower pressing plate of the double-layer workbench and then is fixedly connected with the pull-down auxiliary plate, and the pull-down auxiliary plate is fixedly connected with the lower pressing plate.
3. The CNC automatic loading and unloading device according to claim 2, wherein a plurality of stabilizing columns are arranged among the fixed pressing plate, the lower pressing plate and the pull-down auxiliary plate, one ends of the stabilizing columns are fixedly connected with the fixed pressing plate, and the other ends of the stabilizing columns sequentially penetrate through the lower pressing plate and the pull-down auxiliary plate.
4. The CNC automatic loading and unloading device according to claim 1, wherein a plurality of notches adapted to the multi-station mechanical clamping jaw or the workpiece processing part are provided on a side edge of the lower pressing plate, and a plurality of slits extending from the side edge to the center are further provided on the lower pressing plate, and a length of each slit is smaller than half a length of the lower pressing plate or half a width of the lower pressing plate.
5. The CNC automatic loading and unloading device according to claim 1, wherein the pushing-up driving piece comprises an air cylinder and a pushing-up auxiliary block, the air cylinder is arranged on the lower layer of the double-layer workbench, a piston head of the air cylinder is connected with the pushing-up auxiliary block, the pushing-up auxiliary block penetrates through an upper layer plate of the double-layer workbench and is connected with the side pressure plate sliding rail, an inclined surface sliding rail is arranged on one side, close to the side pressure plate, of the pushing-up auxiliary block, an inclined surface sliding block is arranged on one side, close to the pushing-up auxiliary block, of the side pressure plate moves towards a direction, close to the fixed stair platform, when the pushing-up auxiliary block moves upwards.
6. The CNC automatic loading and unloading device according to claim 5, wherein a cushion pad is provided on a side of the side pressure plate adjacent to the fixed landing.
7. The CNC automatic loading and unloading device according to claim 5, wherein the stabilizing blocks are provided on both sides of the side pressing plate, the stabilizing blocks are fixedly connected with the double-layer workbench, and the stabilizing blocks are slidably connected with the side pressing plate.
8. The CNC automatic loading and unloading device according to claim 1, wherein the driving assembly comprises an X-axis driving member and a Z-axis driving member, the multi-station mechanical clamping jaw is fixedly connected to one side of the X-axis driving member, the other side of the X-axis driving member is fixedly connected to the Z-axis driving member, and the X-axis driving member and the Z-axis driving member drive the multi-station mechanical clamping jaw to move between the tray and the clamping mechanism; the double-layer workbench is arranged on the double-shaft driving base and is fixedly connected with the double-shaft driving base.
9. A CNC machining apparatus comprising a machining drill assembly and a CNC automatic loading and unloading device according to any one of claims 1 to 8.
10. A method of operating a CNC machining apparatus according to claim 9, wherein the method of operating comprises: a driving assembly of the material taking mechanism is controlled to drive a multi-station mechanical clamping jaw of the material taking mechanism to clamp a workpiece on a material tray to a fixed bench of the clamping mechanism; controlling a lower pressing plate and a plurality of side pressing plates of the clamping mechanism to move towards a direction approaching to the fixed bench so as to clamp the workpiece with the fixed bench; controlling a processing drill to process the workpiece; after the workpiece is machined, the lower pressing plate and the side pressing plates of the clamping mechanism are controlled to move in the direction away from the fixed bench, the driving assembly is controlled to drive the multi-station mechanical clamping jaw to clamp the workpiece on the fixed bench to the material tray, and the workpiece machining is completed.

Description

CNC automatic material loading and taking device, CNC machining equipment and working method of CNC automatic material loading and taking device Technical Field The invention relates to the field of numerical control machine tools, in particular to a CNC automatic loading and unloading device, CNC machining equipment and a working method thereof. Background The numerical control machine tool (Computer Numerical Control machine tools, CNC for short) is widely applied to the processing of the mobile phone frame due to the characteristics of high precision, high efficiency and high automation degree. However, in the prior art, the clamping and clamping operation of the mobile phone frame still depends on manual operation, and this method faces many challenges in a mass production environment. Specifically, current cell phone bezel clamping processes typically place a workpiece onto a CNC fixture manually by an operator and fix using a screwdriver. In the material taking stage, an operator needs to loosen the screw again by using an air screwdriver, and then the workpiece is taken off the fixture. Although this mode of operation meets the production requirements to some extent, the following major problems are exposed in mass production: firstly, the production efficiency of manual clamping and clamping operation is low, and the requirements of the modern manufacturing industry on high production speed and high yield cannot be met. The labor intensity of operators is high, the working efficiency is limited, and the rapid and continuous production is difficult to realize. Secondly, clamping accuracy is difficult to be fully ensured. Certain errors exist in manual operation, particularly when the operator is tired or the attention is not concentrated, the clamping precision can be obviously affected, the processing quality is unstable, and the consistency of products is difficult to ensure. In addition, manual operation has a great potential safety hazard. In the clamping process, operators need to frequently use tools such as air tools, and the like, so that hands or other body parts are easy to be injured. The safety risk for the operators is further increased, especially in case of a tight production rhythm. Disclosure of Invention Based on the problems of low clamping efficiency and potential safety hazards of CNC workpieces, the CNC automatic feeding and taking device, CNC machining equipment and working method of the CNC automatic feeding and taking device are needed. In a first aspect, the invention provides a CNC automatic loading and unloading device, which comprises an unloading mechanism, a clamping mechanism and a storage mechanism; The material storage mechanism comprises a material table and a material tray arranged on the material table, and the material tray is used for storing workpieces; The material taking mechanism comprises a multi-station mechanical clamping jaw and a driving assembly, wherein the multi-station mechanical clamping jaw is used for clamping a plurality of workpieces on the material tray, and the driving assembly drives the multi-station mechanical clamping jaw to move between the material tray and the clamping mechanism; The clamping mechanism comprises a double-layer workbench and a plurality of clamping assemblies, wherein the clamping assemblies are respectively arranged on the double-layer workbench, the clamping assemblies comprise a fixed pressing plate, a pressing unit and a plurality of side pressing units, the pressing unit comprises a pressing plate and a pulling-down driving piece fixedly connected with the pressing plate, the fixed pressing plate is arranged on the upper layer of the double-layer workbench, the pressing plate is arranged above the fixed pressing plate, the pulling-down driving piece is arranged on the lower layer of the double-layer workbench, the side pressing units comprise side pressing plates and a pushing-up driving piece, the contact surface of the side pressing plates and the pushing-up driving piece is an inclined surface, and the side pressing plates are respectively arranged on the periphery of the fixed pressing plate; the side of the fixed pressing plate is provided with a circle of fixed terraced platform, the pressing plane of the lower pressing plate is opposite to the horizontal plane of the fixed terraced platform, the side pressing plane of the side pressing plate is opposite to the vertical plane of the fixed terraced platform, and when the workpiece is clamped, the workpiece is clamped between the lower pressing plate and the horizontal plane of the fixed terraced platform and between the side pressing plate and the vertical plane of the fixed terraced platform. In some embodiments, the pull-down driving member includes a hydraulic cylinder and a pull-down auxiliary plate, the hydraulic cylinder is disposed on a lower layer of the double-layer workbench, a piston rod end of the hydraulic cylinder sequentially penetrates through