阅读说明：本技术 一种数控车床自动送料装置及使用方法 (Automatic feeding device of numerical control lathe and using method ) 是由 程光辉 常红安 于 2021-09-18 设计创作，主要内容包括：一种数控车床自动送料装置及使用方法,该送料装置含有基座、抓料组件和活塞结构,所述的基座连接在数控车床的刀塔上,抓料组件和活塞结构,镶嵌在基座上,所述的抓料组件含有限位块、多个平行的滑柱,所述的活塞结构含有活塞、活塞腔和限压阀,该装置以数控车床冷却系统为驱动力,无需额外增加其他动力源；通过数控车床内部冷却液控制指令及换刀即可实现送料动作,无需对数控系统进行改造。且不受数控车床形状、尺寸的限制,仅需按对应数控车床刀座尺寸简单改变并作为其中一个模块安装在现有设备上。(The feeding device comprises a base, a material grabbing component and a piston structure, wherein the base is connected to a turret of the numerical control lathe, the material grabbing component and the piston structure are embedded on the base, the material grabbing component comprises a limiting block and a plurality of parallel sliding columns, the piston structure comprises a piston, a piston cavity and a pressure limiting valve, and the device takes a cooling system of the numerical control lathe as a driving force and does not need to additionally increase other power sources; the feeding action can be realized through the control instruction of the cooling liquid in the numerical control lathe and the tool changing without modifying the numerical control system. The numerical control lathe tool apron is not limited by the shape and the size of the numerical control lathe, and only needs to be simply changed according to the size of the corresponding numerical control lathe tool apron and installed on the existing equipment as one module.)

1. An automatic feeding device of a numerical control lathe is characterized by comprising a base, a material grabbing component and a piston structure, wherein the base is connected to a tool turret of the numerical control lathe, the material grabbing component and the piston structure are embedded on the base, the material grabbing component comprises a limiting block and a plurality of parallel sliding columns, the limiting block is fixed on the base, a plurality of limiting through holes matched with the sliding columns are formed in the limiting block, spiral sliding grooves are formed in the sliding columns, springs are sleeved on the outer sides of the sliding columns, the front end of each sliding column is connected with a clamping jaw, the clamping jaw is located on the front side of the limiting block, the springs are located on the rear side of the limiting block, the piston structure comprises a piston, a piston cavity and a pressure limiting valve, an end cover is arranged at the front end of the piston, guide holes matched with the sliding columns are uniformly distributed in the outer edge of the end cover, guide pins matched with the spiral sliding columns are arranged in the guide holes, the rear end of each sliding column is correspondingly sleeved in the guide holes of the piston end cover, the guide pin in the guide hole is embedded in the spiral sliding groove of the sliding column, the piston cavity is communicated with a cooling system of the numerical control lathe through a pipeline, and the piston cavity is communicated with the outside through a pressure limiting valve.

2. The numerically controlled lathe feeder according to claim 1, wherein the gripper assembly comprises three parallel sliding columns.

3. The numerical control lathe automatic feeding device as claimed in claim 1 or 2, wherein the outer edge of the piston end cover is provided with three lugs uniformly distributed and protruded, each lug is provided with a guide hole matched with the sliding column, and a guide pin matched with the spiral sliding groove of the sliding column is arranged in each guide hole.

4. The automatic feeding device of the numerical control lathe as claimed in claim 1, wherein the base is provided with a special-shaped groove cavity, the material grabbing component is located at the front end of the special-shaped groove cavity, the piston structure is located at the rear end of the special-shaped groove cavity, and the section of the front end of the special-shaped groove cavity is matched with the shape of the piston end cover, so that the radial deviation of the piston end cover can be prevented.

5. The automatic feeding device of the numerical control lathe as claimed in claim 1, wherein the rear end of the special-shaped groove cavity of the base is a circular piston cavity, the piston end cover is connected to the front end of the piston cavity, and the pressure limiting valve is connected to the rear end of the piston cavity.

6. The use method of the automatic feeding device of the numerically controlled lathe according to claim 1, 2, 3, 4 or 5, characterized by comprising the following steps: 1) the feeding device is fixed on a turret of the numerical control lathe, the axis of a material grabbing component at the front end of the feeding device corresponds to the axis of a chuck of the numerical control lathe, the feeding device of the feeding device moves along with the turret, a piston cavity of the feeding device is communicated with a cooling system of the numerical control lathe through a pipeline, and the piston cavity is communicated with the outside through a pressure limiting valve; 2) the end of the cylindrical blank is limited on a chuck of the numerical control lathe; 3) when a turret of the numerical control lathe is close to the end position of the cylindrical rough material, the cooling system supplies pressure to the piston cavity through a cooling liquid pipeline, the pressure limiting valve is closed, the piston extends out, and the guide pin on the piston end cover moves along the spiral chute on the sliding column, so that the sliding column rotates to drive the clamping jaws to clamp the cylindrical rough material; 4) when the tool turret moves backwards, the feeding device pulls the cylindrical rough materials to retreat to a machining station, the cooling system stops supplying pressure to the piston cavity, the pressure limiting valve is opened, the piston retracts under the action of spring resilience, the guide pin on the piston end cover moves reversely along the spiral chute, the sliding column rotates reversely to drive the clamping jaw to loosen the cylindrical rough materials, and automatic feeding of the cylindrical rough materials is achieved.

Technical Field

The application relates to the technical field of numerical control processing wires, in particular to an automatic feeding device of a numerical control lathe and a using method.

Background

The numerical control lathe is generally assisted in machining by adopting special automatic feeding equipment in the batch production process, is generally applied to large-batch small-size parts, and the raw materials of the parts are phi 8-below small-diameter wire materials. In the practical application process, the automatic feeding equipment needs to be debugged when the variety and the material specification of the part are changed every time. And for the production scene of small batches of medium-sized materials with the diameter phi 8-phi 20, the replacement efficiency is low by adopting special automatic feeding equipment. Therefore, an automatic feeding device with high reloading efficiency is needed to fill the application scenes.

Disclosure of Invention

The application aims to provide an automatic feeding device of a numerical control lathe and a using method of the automatic feeding device, and the automatic feeding device is used for automatically feeding small-size parts in small batches with the raw material being a small-diameter wire material with the diameter phi being smaller than 8, so that the production efficiency is improved.

An automatic feeding device of a numerical control lathe is characterized by comprising a base, a material grabbing component and a piston, wherein the base is connected to a tool turret of the numerical control lathe, the material grabbing component and a piston structure are embedded on the base, the material grabbing component comprises a limiting block and a plurality of parallel sliding columns, the limiting block is fixed on the base, a plurality of limiting through holes matched with the sliding columns are formed in the limiting block, spiral sliding grooves are formed in the sliding columns, springs are sleeved on the outer sides of the sliding columns, the front end of each sliding column is connected with a clamping jaw, the clamping jaw is located on the front side of the limiting block, the springs are located on the rear side of the limiting block, the piston structure comprises a piston, a piston cavity and a pressure limiting valve, an end cover is arranged at the front end of the piston, guide holes matched with the sliding columns are uniformly distributed in the outer edge of the end cover, guide pins matched with the spiral sliding columns are arranged in the guide holes, the rear end of each sliding column is correspondingly sleeved in the guide holes of the piston end cover, the guide pin in the guide hole is embedded in the spiral sliding groove of the sliding column, the piston cavity is communicated with a cooling system of the numerical control lathe through a pipeline, and the piston cavity is communicated with the outside through a pressure limiting valve.

The preferred grapple assembly contains three parallel skid columns.

The outer edge of the preferable piston end cover is provided with three uniformly distributed convex lugs, each lug is provided with a guide hole matched with the sliding column, and a guide pin matched with the spiral sliding groove of the sliding column is arranged in each guide hole.

The optimized base is provided with a special-shaped groove cavity, the material grabbing component is located at the front end of the special-shaped groove cavity, the piston structure is located at the rear end of the special-shaped groove cavity, the section of the front end of the special-shaped groove cavity is matched with the appearance of the piston end cover, and the piston end cover can be prevented from radially deviating.

The rear end of the optimized special-shaped groove cavity of the base is a circular piston cavity, a piston end cover is connected to the front end of the piston cavity, and a pressure limiting valve is connected to the rear end of the piston cavity.

The use method of the automatic feeding device of the numerically controlled lathe is characterized by comprising the following steps of: 1) the feeding device is fixed on a turret of the numerical control lathe, the axis of a material grabbing component at the front end of the feeding device corresponds to the axis of a chuck of the numerical control lathe, the feeding device of the feeding device moves along with the turret, a piston cavity of the feeding device is communicated with a cooling system of the numerical control lathe through a pipeline, and the piston cavity is also communicated with the outside through a pressure limiting valve; 2) the end of the cylindrical blank is limited on a chuck of the numerical control lathe; 3) when a turret of the numerical control lathe is close to the end position of the cylindrical rough material, the cooling system supplies pressure to the piston cavity through a cooling liquid pipeline, the pressure limiting valve is closed, the piston extends out, and the guide pin on the piston end cover moves along the spiral chute on the sliding column, so that the sliding column rotates to drive the clamping jaws to clamp the cylindrical rough material; 4) when the tool turret moves backwards, the feeding device pulls the cylindrical rough materials to retreat to a machining station, the cooling system stops supplying pressure to the piston cavity, the pressure limiting valve is opened, the piston retracts under the action of spring resilience, the guide pin on the piston end cover moves reversely along the spiral chute, the sliding column rotates reversely to drive the clamping jaw to loosen the cylindrical rough materials, and automatic feeding of the cylindrical rough materials is achieved.

The beneficial effect of this application lies in: the device takes a cooling system of the numerical control lathe as a driving force, and other power sources are not required to be additionally added; the feeding action can be realized through the control instruction of the cooling liquid in the numerical control lathe and the tool changing without modifying the numerical control system. The numerical control lathe tool apron is not limited by the shape and the size of the numerical control lathe, and only needs to be simply changed according to the size of the corresponding numerical control lathe tool apron and installed on the existing equipment as one module. The device has the advantages of convenient installation and operation, low cost and no need of changing the equipment.

The present application is described in further detail below with reference to the accompanying drawings of embodiments.

Drawings

FIG. 1 is a schematic sectional structure view of an automatic feeding device of a numerically controlled lathe.

FIG. 2 is a schematic view of the structure of the shaft side of the automatic feeding device of the numerically controlled lathe.

Fig. 3 is a schematic view of the base structure.

Fig. 4 is a schematic view of a strut structure.

Fig. 5 is a schematic view of the piston structure.

FIG. 6 is a schematic diagram of the cross-linking relationship between the spool and the piston.

FIG. 7 is a schematic view of the clamping state of the automatic feeding device of the numerically controlled lathe.

FIG. 8 is a schematic view of the feeding state of the automatic feeding device of the numerically controlled lathe.

The numbering in the figures illustrates: the device comprises a base 1, a limiting block 2, a sliding column 3, a spring 4, a clamping jaw 5, a sliding chute 6, a piston 7, an end cover 8, a guide pin 9, a piston cavity 10, a pipeline 11, a pressure limiting valve 12, a limiting through hole 13, a guide hole 14, a feeding device 15, a numerical control lathe 16, a cutter tower 17, a chuck 18 and a cylindrical blank 19.

Detailed Description

Referring to the attached drawings, the automatic feeding device of the numerical control lathe comprises a base, a material grabbing component and a piston structure, wherein the base 1 is connected to a turret 17 of the numerical control lathe 16, a special-shaped groove cavity is formed in the base 1, the material grabbing component is located at the front end of the special-shaped groove cavity, the piston structure is located at the rear end of the special-shaped groove cavity, the section of the front end of the special-shaped groove cavity is matched with the shape of a piston end cover, and the piston end cover can be prevented from radially deviating. The rear end of the special-shaped groove cavity of the base is a circular piston cavity 10, the piston 7 and the end cover 8 are connected to the front end of the piston cavity 10, and the pressure limiting valve 12 is connected to the rear end of the piston cavity 10.

Grab material subassembly and piston structure, inlay in the dysmorphism slot cavity of base, grab the material subassembly and contain stopper 2, three parallel traveller 3, stopper 2 is fixed on base 1, is equipped with a plurality of spacing through-holes 13 that match with traveller 3 on the stopper 2, is equipped with spiral spout 6 on the traveller 3, as shown in fig. 4. The spring 4 is sleeved on the outer side of each sliding column 6, the front end of each sliding column 6 is connected with a clamping jaw 5, each clamping jaw 5 is of an eccentric cam type structure, each clamping jaw 5 is located on the front side of each limiting block 2, each spring 4 is located on the rear side of each limiting block 2, each piston structure comprises a piston 7, a piston cavity 10 and a pressure limiting valve 12, an end cover 8 is arranged at the front end of each piston 7, three lug pieces which are uniformly distributed and convex are arranged on the outer edge of each end cover 8, each lug piece is provided with a guide hole 14 matched with each sliding column 3, and a guide pin 9 matched with each sliding column spiral sliding chute 6 is arranged in each guide hole 14. The rear end of each sliding column 3 is correspondingly sleeved in a guide hole 14 of a piston end cover, a guide pin 9 in the guide hole 14 is embedded in a sliding column spiral chute 6, a piston cavity 10 is communicated with a cooling system of a numerical control lathe 16 through a pipeline 11, and the piston cavity 10 is also communicated with the outside through a pressure limiting valve 12.

The use method of the automatic feeding device of the numerically controlled lathe comprises the following steps: fixing a feeding device 15 on a turret 17 of a numerically controlled lathe 16, enabling the axis of a material grabbing component at the front end of the feeding device 15 to correspond to the axis of a chuck 18 of the numerically controlled lathe, enabling the feeding device 15 to move synchronously with the turret 17, enabling a piston cavity 10 of the feeding device 15 to be communicated with a cooling system of the numerically controlled lathe 16 through a pipeline 11, and enabling the piston cavity 10 to be communicated with the outside through a pressure limiting valve 12; the end of the cylindrical blank 19 processed by the numerically controlled lathe 16 is limited on a chuck 18 of the numerically controlled lathe 16; when a turret 17 of the numerically controlled lathe 16 approaches the end position of the cylindrical rough material 19, a cooling system supplies pressure to the piston cavity 10 through a cooling liquid pipeline, the pressure limiting valve 12 is closed, the piston 7 extends out, and the guide pin 9 on the end cover 8 of the piston moves along the spiral chute 6 on the sliding column 3, so that the sliding column 3 rotates to drive the clamping jaw 5 to clamp the cylindrical rough material 19; when the turret 17 moves backwards, the feeding device 15 pulls the cylindrical rough material 19 to retreat to a processing station, the cooling system stops supplying pressure to the piston cavity 10, the pressure limiting valve 12 is opened, the piston 7 retracts under the resilience action of the spring 4, the guide pin 9 on the end cover 8 of the piston moves in the reverse direction along the spiral chute 6, the sliding column 3 rotates in the reverse direction to drive the clamping jaw 5 to loosen the cylindrical rough material 19, and the automatic feeding of the cylindrical rough material 19 is achieved.

The specific operation steps are as follows:

1) manually clamping the cylindrical blank 19 on the numerically controlled lathe 15 through the chuck 18, taking the end face lathe tool of the turret 17, and flatly lathing the end face of the cylindrical blank 19.

2) And executing a part processing command, and cutting off the cylindrical blank 19 according to the specified coordinates after the processing is finished.

3) Program control feed to the corresponding coordinate when the cylindrical rough material 19 is cut off in the step 2), program control cooling liquid is opened, and at the moment, the claw 5 clamps the excircle of the cylindrical rough material 19 under the action of cooling hydraulic pressure on the piston; the chuck 18 of the program-controlled numerical control lathe loosens the cylindrical rough material 19; controlling the cutter tower 17 to retract to a position reasonably required by a program; a chuck 18 of the program-controlled numerical control lathe clamps the cylindrical rough material 19; the cooling liquid is controlled by a program to be closed, and the clamping jaw 5 is loosened under the action of the spring on the piston; and changing the tool to perform machining.