CN115502768A - CNC four-axis automatic feeding engraving and milling machine for medical industry - Google Patents

Abstract

The invention discloses a CNC four-axis automatic feeding engraving and milling machine for medical industry, which is characterized in that a workpiece to be machined is placed on a feeding disc mechanism, and the workpiece to be machined is sequentially grabbed by a material fetching mechanism and is conveyed to a workpiece clamping mechanism; the workpiece clamping mechanism is arranged below the cutter driving mechanism, and the cutter driving mechanism drives the machining cutter to perform engraving and milling on the workpiece; and a tool magazine component is also arranged to realize the automatic replacement of the machining tool. In the technical scheme, the feeding disc mechanism and the material taking mechanism complete conveying of workpieces, automatic feeding of the workpieces to be processed is achieved, engraving and milling processing is completed through the cutter driving mechanism and the workpiece clamping mechanism, the workpieces after processing are sent back to the original position of the feeding disc through the manipulator assembly, the workpieces are prevented from being placed in a disordered mode, processing precision and production efficiency of products are improved, and the production and processing processes are flexible, simple and rapid. The automatic feeding device realizes automatic feeding of workpieces to be processed, reduces manual operation, improves production efficiency and operation safety, and has higher productivity.

Description

A CNC four-axis automatic feeding engraving and milling machine for the medical industry

technical field

The invention relates to the technical field of numerical control machine tools, in particular to a CNC four-axis automatic feeding engraving and milling machine used in the medical industry.

Background technique

CNC machine tool is the abbreviation of Computer numerical control machine tools (CNC), which is an automatic machine tool equipped with a program control system. Its control system sends out various control signals to control the movement of the machine tool, and automatically process the parts according to the shape and size required by the drawings. CNC machine tools solve complex, precise, small-batch, and multi-variety parts processing problems. It is a flexible, high-efficiency automatic machine tool that represents the development direction of modern machine tool control technology. It is a typical mechanical and electrical integration. equipment.

Medical products are small in size and require high precision. For example, the diameter of a titanium column in a medical dental implant is only about 10 mm. Therefore, in order to meet the processing precision requirements, the processing equipment for medical products is usually complex in structure and large in size. At the same time, due to the small size of medical products, it is inconvenient to clamp, and it is easy to cause mistakes when loading and unloading.

Contents of the invention

In view of this, it is necessary to provide a CNC four-axis automatic feeding engraving and milling machine for the medical industry with a compact overall structure and accurate feeding.

A CNC four-axis automatic feeding engraving and milling machine used in the medical industry, including a workbench, an automatic feeding device and a four-axis processing device arranged side by side on the workbench, and the four-axis processing device includes a tool drive mechanism and The workpiece clamping mechanism, the tool driving mechanism is used to drive the processing tool to work, the workpiece clamping mechanism is used to clamp and rotate the workpiece to be processed; the automatic feeding device includes a feeding tray mechanism and a material taking mechanism, the The upper tray mechanism is used to place workpieces to be processed, and the retrieving mechanism is used to grab and transport the workpieces to be processed; after the retrieving mechanism grabs the workpieces to be processed from the upper tray mechanism, it moves and places In the workpiece clamping mechanism, the engraving and milling processing of the workpiece to be processed is realized by the four-axis processing device.

Preferably, the workbench includes a loading station and a processing station, the feeding tray mechanism is arranged at the feeding station, the four-axis processing device is arranged at the processing station, and the reclaiming mechanism includes a manipulator assembly and the loading arm assembly, the manipulator assembly is located at one end of the loading arm assembly facing the processing station, and moves under the drive of the loading arm assembly, the manipulator assembly and the loading arm assembly grasp Take and drive the workpiece to be processed to move from the loading station to the processing station.

Preferably, the loading arm assembly includes a fixed installation part, an extension movable part, an extension motor, an extension driving wheel, and an extension driven wheel. The fixed installation part and the extension movable part are slidingly connected by a track, and the extension motor is used To drive the extension driving wheel to rotate, the extension driving wheel and the extension driven wheel are driven by a rack, and the extension movable part is fixed with a rack moving block, and the rack moving block is fastened to the on the rack, and as the rack moves, the rack moving block drives the stretching movable part to move synchronously.

Preferably, the loading arm assembly further includes an extension limiting block, the rack is wound around the outer sides of the extension driving wheel and the extension driven wheel, and the extension limiting block is arranged on the extension driving wheel , In the space enclosed by the extension driven wheel and the rack, the distance between the extension limiting block and the rack is smaller than the thickness of the moving block of the rack.

Preferably, the manipulator assembly includes a pressing module and a grabbing module, the grabbing module is arranged at the end of the pressing module, and the pressing module drives the grabbing module to move up and down , the grasping module is used to clamp the workpiece to be processed; the pressing module includes a pressing fixed part, a pressing movable part and a pressing cylinder, and the pressing fixed part is fixedly installed on the stretching movable part Above, the press-down movable part and the press-down fixed part are slidably connected by a press-down slide rail, and the press-down cylinder pushes the press-down movable part to move up and down along the press-down slide rail; The module taking module includes a pneumatic finger and a first clamp cylinder, the pneumatic finger is fixedly mounted on the pressing movable part, the pneumatic finger includes a plurality of first pneumatic clamps, and the first clamp cylinder is used to drive the The first pneumatic gripper opens and closes.

Preferably, the feeding tray mechanism includes a tray and a tray drive motor, the tray is arranged on the top of the tray drive motor, and rotates under the drive of the tray drive motor; the tray It includes a plurality of regularly arranged first work clamps, and the first work clamps are used for fixedly placing workpieces to be processed and processed workpieces.

Preferably, it also includes an equipment installation frame, the equipment installation frame includes a beam and columns arranged at both ends of the beam; the tool driving mechanism includes an X-axis module and a Z-axis module arranged perpendicularly to each other, and the X-axis The module is fixedly installed on the beam, the Z-axis module is slidably installed on the X-axis module, the processing tool is set at the end of the Z-axis module, and the X-axis module is used for the The Z-axis module and the processing tool move horizontally, and the Z-axis module is used for the vertical movement of the processing tool.

Preferably, the workpiece clamping mechanism includes a Y-axis module, a B-axis module and a workpiece processing platform, the Y-axis module is arranged under the equipment mounting frame, and is connected with the X-axis module and the The Z-axis modules are arranged perpendicular to each other, and the Y-axis modules are used to drive the B-axis modules to move horizontally and are perpendicular to the moving direction of the X-axis modules; the workpiece processing platform is located on The front end of the B-axis module is used to drive the workpiece processing platform to swing in the Y-axis direction.

Preferably, the workpiece processing platform includes a second pneumatic clamp and a second clamp cylinder, the second pneumatic clamp is arranged on the top end of the second clamp cylinder, and the second clamp cylinder is used to drive the second pneumatic The fixture opens and closes to clamp the workpiece to be processed.

Preferably, it also includes a tool magazine assembly, which is fixedly installed on the column of the equipment installation frame through the tool magazine fixing plate, and the tool magazine assembly includes a tool magazine servo motor, a tool magazine rotating wheel, and a tool magazine bottom plate and a rotary cutter head, the rotary cutter head, the tool magazine servo motor, and the tool magazine rotating wheel are respectively installed on both sides of the tool magazine bottom plate, and the tool magazine rotating wheel is fixedly connected with the rotary cutter head, so The tool magazine servo motor drives the tool magazine rotating wheel to rotate through a synchronous belt, and the tool magazine rotating wheel drives the rotating cutter head to rotate. On the same circle with the center of the rotary cutter head as the center, the processing tool is placed on the claw.

The above is used in the CNC four-axis automatic feeding engraving and milling machine in the medical industry. The workpiece to be processed is placed on the feeding tray mechanism, and the workpiece to be processed is sequentially grabbed by the retrieving mechanism and sent to the workpiece holder. mechanism; the workpiece clamping mechanism is arranged under the tool driving mechanism, and the tool driving mechanism drives the processing tool to perform engraving and milling on the workpiece to be processed; the tool magazine is also provided on one side of the tool driving mechanism Components to realize the automatic replacement of the processing tool. In this technical solution, the feeding tray mechanism and the retrieving mechanism complete the transmission of workpieces to be processed, realizing the automatic loading of workpieces to be processed, and then the carving is completed by the tool driving mechanism and the workpiece clamping mechanism. In milling process, the processed workpiece is sent back to the original position of the material tray through the manipulator assembly, avoiding the chaotic placement of the workpiece, improving the processing accuracy and production efficiency of the product, and making the production and processing process more flexible, simple and fast. At the same time, the automatic feeding device realizes automatic feeding of workpieces to be processed, reduces manual operations, improves production efficiency and operation safety, and has higher production capacity. At the same time, the tool magazine assembly is arranged on one side of the equipment mounting frame, which realizes the automatic replacement of tools, and at the same time makes the CNC machine tool compact in structure, reduces the footprint of production equipment, and saves production costs. The product of the invention is simple in structure, easy to produce, low in cost and easy to popularize.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry.

Fig. 2 is a schematic structural view of an automatic feeding device for CNC four-axis automatic feeding engraving and milling machines in the medical industry according to an embodiment of the present invention.

Fig. 3 is a structural schematic diagram 1 of an embodiment of the present invention used in a retrieving mechanism of a CNC four-axis automatic feeding engraving and milling machine in the medical industry.

Fig. 4 is the second structural schematic diagram of the material retrieving mechanism used in the CNC four-axis automatic feeding engraving and milling machine in the medical industry according to the embodiment of the present invention.

Fig. 5 is a schematic structural view of a feeding tray mechanism used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a four-axis processing device used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a tool driving mechanism used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a workpiece clamping mechanism used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a tool magazine assembly used in a CNC four-axis automatic feeding engraving and milling machine in the medical industry according to an embodiment of the present invention.

detailed description

This embodiment takes a CNC four-axis automatic feeding engraving and milling machine used in the medical industry as an example, and the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

Please refer to FIG. 1 , which shows a CNC four-axis automatic feeding engraving and milling machine 100 for the medical industry provided by an embodiment of the present invention, including a workbench 10 and an automatic feeding device 20 arranged side by side on the workbench 10 . A four-axis processing device 30, the four-axis processing device 30 includes a tool drive mechanism 31 and a workpiece clamping mechanism 32, the tool drive mechanism 31 is used to drive a machining tool 313 to work, and the workpiece clamping mechanism 32 is used to clamp Hold and rotate the workpiece to be processed; the automatic feeding device 20 includes a feeding tray mechanism 21 and a reclaiming mechanism 24, and the retrieving mechanism 24 is arranged above the feeding tray mechanism 21, and the feeding tray mechanism 21 is used to place workpieces to be processed, and the pick-up mechanism 24 is used to grab and transport the workpieces to be processed; after the pick-up mechanism 24 grabs the workpieces to be processed from the loading tray mechanism 21, it moves and places The workpiece clamping mechanism 32 implements engraving and milling processing on the workpiece to be processed by the four-axis processing device 30 .

Preferably, the workbench 10 includes a feeding station and a processing station, the feeding tray mechanism 21 is arranged at the feeding station, the four-axis processing device is arranged at the processing station, and the material taking mechanism 24 Comprising a manipulator assembly 25 and a loading arm assembly 26, the manipulator assembly 25 is located at one end of the loading arm assembly 26 towards the processing station, and moves under the drive of the loading arm assembly 26, the manipulator assembly 25 and the loading arm assembly 26 grab and drive the workpiece to be processed to move from the loading station to the processing station.

Preferably, referring to Fig. 2, Fig. 3 and Fig. 4, the loading arm assembly 26 includes a fixed mounting part 261, a stretching movable part 262, a stretching motor 264, a stretching driving wheel 265, and a stretching driven wheel 266. The stretching part 261 and the stretching movable part 262 are slidingly connected by rails, the stretching motor 264 is used to drive the stretching driving wheel 265 to rotate, and the stretching driving wheel 265 and the stretching driven wheel 266 are driven by a rack 267 , the stretching movable part 262 is fixed with a rack moving block 263, the rack moving block 263 is fastened on the rack 267, and moves with the rack 267, the rack moving block 263 drives the stretching movable part 262 to move synchronously.

Specifically, the extension driving wheel 265 and the extension driven wheel 266 are arranged on the fixed mounting part 261, and a rack 267 is wound around the extension driving wheel 265 and the extension driven wheel 266. The wheel drives the extension driven wheel 266 to rotate through the rack 267 .

Specifically, the bottom surface of the rack moving block 263 has a plurality of protruding teeth, the teeth on the bottom surface of the rack moving block 263 are at the same interval as the teeth of the rack 267, and the teeth on the bottom surface of the rack moving block 263 The teeth mesh with the teeth of the rack 267, so that the rack moving block 263 is snapped on the rack 267, and the rack moving block 263 and the stretching movable part 262 are integrally formed, and in the Move under the drive of tooth bar 267.

Preferably, the loading arm assembly 26 further includes an extension limit block 268, the rack 267 is wound around the outer side of the extension driving wheel 265 and the extension driven wheel 266, and the extension limit block 268 is set In the space enclosed by the extension driving wheel 265, the extension driven wheel 266 and the rack 267, the distance between the extension limiting block 268 and the rack 267 is smaller than the moving block of the rack. 263 thickness.

Specifically, in this embodiment, in the space surrounded by the extension driving wheel 265, the extension driven wheel 266 and the rack 267, the rack moving block 263 and the teeth on one side The bar 267 engages and moves with the rack 267, the extension limit block 268 is arranged at one end of the four-axis processing device 30, and is close to the rack 267 provided with the rack moving block 263, When the rack moving block 263 is moved toward the four-axis processing device 30 , the extension limiting block 268 plays a limiting role on the rack moving block 263 and the extending movable member 262 .

Preferably, the manipulator assembly 25 includes a pressing module and a grabbing module, the grabbing module is arranged at the end of the pressing module, and the pressing module drives the grabbing module up and down Move, the grabbing module is used to clamp the workpiece to be processed; the pressing module includes a pressing fixture 251, a pressing movable part 252 and a pressing cylinder 253, and the pressing fixture 251 is fixedly installed on On the stretching movable part 262, the pressing movable part 252 is slidingly connected with the pressing fixing part 251 through a pressing slide rail, and the pressing cylinder 253 pushes the pressing moving part 252 along the The pressing slide rail moves up and down; the grasping module includes a pneumatic finger 254 and a first clamp cylinder 255, and the pneumatic finger 254 is fixedly mounted on the pressing movable part 252, and the pneumatic finger 254 includes a plurality of first clamping cylinders 255. A pneumatic clamp, the first clamp cylinder 255 is used to drive the first pneumatic clamp to open and close.

Specifically, in this embodiment, the pneumatic finger 254 includes a plurality of first pneumatic grippers that move toward each other, and the ends of the first pneumatic grippers have arc-shaped grooves. When a plurality of the first pneumatic grippers When closed, the workpiece to be processed is clamped in the arc groove.

Specifically, the press-down cylinder 253 includes a first press-down cylinder and a second press-down cylinder, and the first press-down cylinder and the second press-down cylinder control the two-stage movement of the press-down movable member 252, wherein The depressing speed of the second depressing cylinder is relatively slow, and the depressing movable part 252 is controlled to depress slowly.

Preferably, referring to FIG. 5 , the feeding tray mechanism 21 includes a tray 22 and a tray driving motor 23, the tray 22 is arranged on the top of the tray driving motor 23, and is driven on the tray. Driven by the motor 23 to rotate; the tray 22 includes a plurality of regularly arranged first workpiece holders 221, and the first workpiece holders 221 are used to fix and place the workpieces to be processed and the processed workpieces.

Specifically, in this embodiment, the tray 22 is a disc, and a plurality of workpieces to be processed are arranged on the tray 22 at equal intervals in a plurality of concentric circles, and the tray drive motor 23 drives the tray 22. The disk 22 rotates, and the workpieces to be processed on the material disk 22 are sequentially moved to the fetching mechanism 24 .

Specifically, the rotating circular tray 22 transports the workpieces to be processed to the taking-off mechanism 24, so that the distance between each workpiece to be processed and the taking-off mechanism 24 is equal, which simplifies the work of the taking-off mechanism 24. Therefore, in some other embodiments, the workpiece to be processed may also be transferred to the fetching mechanism 24 by means of a conveyor belt.

Preferably, an equipment installation frame 40 is also included, and the equipment installation frame 40 includes a beam and uprights arranged at both ends of the beam; please refer to Fig. 6, Fig. 7 and Fig. 8 , the tool drive mechanism 31 includes The X-axis module 311 and the Z-axis module 312, the X-axis module 311 is fixedly installed on the beam, the Z-axis module 312 is slidably installed on the X-axis module 311, and the processing tool 313 is located at the end of the Z-axis module 312, the X-axis module 311 is used for the horizontal movement of the Z-axis module 312 and the processing tool 313, and the Z-axis module 312 is used for the processing tool 313 moves vertically.

Specifically, the tool driving mechanism 31 includes a horizontally arranged X-axis module 311 and a vertically arranged Z-axis module 312, and the X-axis module 311 includes an X-axis servo motor and an X-axis ball screw. The X-axis ball screw is horizontally installed on the equipment support, and the X-axis servo motor drives the Z-axis module 312 to move horizontally along the X-axis ball screw.

The Z-axis module includes a main shaft connecting plate, a Z-axis fixing member, a Z-axis servo motor and a Z-axis ball screw. The Z-axis fixing member is arranged on the X-axis ball screw and runs along the X-axis The ball screw moves, the Z-axis ball screw is vertically installed on the Z-axis fixture, the spindle connecting plate is arranged on the Z-axis ball screw, and the Z-axis servo motor drives the The main shaft connecting plate moves up and down along the Z-axis ball screw.

The tool driving mechanism 31 also includes a main shaft 314, the main shaft 314 is vertically arranged on the main shaft connection plate, the main shaft 314 includes a main shaft rotation motor and a tool mounting seat, and the tool mounting seat is arranged on the main shaft rotating The end of the motor rotates under the control of the spindle rotation motor, and the processing tool 313 is installed on the tool mounting seat.

Preferably, the workpiece clamping mechanism 32 includes a Y-axis module 321, a B-axis module 322 and a workpiece processing platform 323. The Y-axis module 321 is arranged under the equipment mounting frame 40 and is connected to the X Two pairs of the axis module 311 and the Z axis module 312 are vertically arranged, and the Y axis module 321 is used to drive the B axis module 322 to move horizontally, and is connected with the X axis module 311 The moving direction is vertical; the workpiece processing platform 323 is arranged at the front end of the B-axis module 322, and the B-axis module 322 is used to drive the workpiece processing platform 323 to swing in the Y-axis direction.

Specifically, the equipment mounting frame 40 is preferably a gantry frame, the tool driving mechanism 31 is arranged on the equipment mounting frame 40, and the workpiece clamping mechanism 32 is arranged below the equipment mounting frame 40 and is fixedly installed. On the workbench 10, the layout of each component is exquisite, the structure is compact, and the space occupied is small

Specifically, the Y-axis module 321 includes a Y-axis servo motor and a Y-axis ball screw, and the Y-axis ball screw is installed horizontally on the workbench 10, and is connected with the installation of the X-axis ball screw. The directions are perpendicular to each other, and the Y-axis servo motor drives the B-axis module 322 and the workpiece processing platform 323 to move back and forth.

The B-axis module 322 includes a platform connecting piece, a B-axis rotating motor, and a B-axis fixing piece. The B-axis fixing piece is arranged on the Y-axis ball screw, and moves forward and backward along the Y-axis ball screw. Move: the B-axis rotating motor is fixedly installed on the B-axis fixing part, and moves forward and backward along with the B-axis fixing part, the platform connecting part is arranged at the end of the B-axis rotating motor, and the platform One end of the connecting piece is connected to the end of the B-axis rotating motor, the other end of the platform connecting piece is provided with the workpiece processing platform 323, and the B-axis rotating motor drives the platform connecting piece and the workpiece processing platform 323 rotates around the Y-axis direction.

Specifically, in this embodiment, the B-axis module 322 drives the workpiece processing platform 323 to swing in a cradle at a predetermined angle, and the swing angle of the workpiece processing platform 323 is plus or minus 110 degrees.

Preferably, the workpiece processing platform 323 includes a second pneumatic clamp and a second clamp cylinder, the second pneumatic clamp is arranged on the top of the second clamp cylinder, and the second clamp cylinder is used to drive the second Pneumatic clamps open and close to clamp the workpiece to be processed.

Specifically, the second pneumatic clamp includes a plurality of arc-shaped clamps that move toward each other, and the second clamp cylinder drives the arc-shaped clamps to move toward each other to clamp the workpiece to be processed.

In this embodiment, the structure of the second pneumatic clamp is the same as that of the pneumatic finger. In other embodiments, the second pneumatic clamp and the pneumatic finger can adopt different structure.

Specifically, in this embodiment, the manipulator assembly 25 grabs the workpiece to be processed from the tray 22, the loading arm assembly 26 moves the manipulator assembly 25 to the processing station, and the manipulator assembly 25 place the workpiece to be processed on the workpiece processing platform 323 , and the loading arm assembly 26 moves the manipulator assembly 25 to the loading station. After the workpiece processing is completed, the loading arm assembly 26 moves the manipulator assembly 25 to the processing station, and grabs the processed workpiece on the workpiece processing platform 323, and the loading arm assembly 26 moves the manipulator The component 25 moves to the loading station, and the manipulator component 25 puts the processed workpiece back to its original position, so as to avoid the disorderly placement of the workpiece.

Preferably, referring to FIG. 9 , it also includes a tool magazine assembly 50, said tool magazine assembly 50 is fixedly mounted on the column of said equipment mounting frame 40 through a tool magazine fixing plate 51, said tool magazine assembly 50 includes a tool magazine servo Motor 52, knife magazine rotating wheel 53, knife magazine base plate 54 and rotary cutterhead 55, described rotary cutterhead 55 and described knife magazine servo motor 52, knife magazine rotating wheel 53 are installed on two sides of described tool magazine baseplate 54 respectively. On the side, the tool magazine rotating wheel 53 is fixedly connected with the rotary cutter head 55, the tool magazine servo motor 52 drives the tool magazine rotating wheel 53 to rotate through a synchronous belt, and the tool magazine rotating wheel 53 drives the rotation The cutterhead 55 rotates, and the rotary cutterhead 55 is equipped with a plurality of claws 551, and a plurality of the claws 551 are arranged on the same circle with the center of the rotary cutterhead 55 as the center of a circle. The processing tool 313 is placed.

Specifically, the outer cover of the rotary cutterhead 55 is provided with a tool magazine cover, and the knife magazine cover has a knife magazine movable plate, and the knife magazine movable plate covers the opening of the knife magazine cover. When the knife magazine movable plate is opened, the knife magazine servo motor 52 and the knife magazine rotating wheel 53 rotate the rotary cutter head 55, and the tool to be replaced is rotated to the opening of the knife magazine cover.

Specifically, the workbench 10 has a waste material collection hole 11, the waste material collection hole 11 adopts a funnel-type sink hole, and the waste material collection hole 11 is located below the workpiece processing platform 323, located processing station. When the workpiece is processed, debris falls into the waste material collection hole 11 and slides down to the bottom of the waste material collection hole 11 along the inner sidewall of the waste material collection hole 11, so as to improve the recovery rate of the debris.

The above-mentioned CNC four-axis automatic feeding engraving and milling machine 100 used in the medical industry places the workpiece to be processed on the feeding tray mechanism 21, and the retrieving mechanism 24 sequentially grabs the workpiece to be processed and transmits it to the A workpiece clamping mechanism 32; the workpiece clamping mechanism 32 is located below the tool drive mechanism 31, and the tool drive mechanism 31 drives the processing tool 313 to perform engraving and milling on the workpiece to be processed; the tool drive mechanism 31 One side is also provided with the tool magazine assembly 50 to realize the automatic replacement of the machining tools 313 . In this technical solution, the feeding tray mechanism 21 and the retrieving mechanism 24 complete the transmission of workpieces to be processed, realizing automatic loading of workpieces to be processed, and then clamped by the tool drive mechanism 31 and the workpiece The mechanism 32 completes the engraving and milling process, and the processed workpiece is sent back to the original position of the material tray 22 through the manipulator assembly 25, which avoids the chaotic placement of the workpiece, improves the processing accuracy and production efficiency of the product, and makes the production and processing process more flexible. Simple and fast. At the same time, the automatic feeding device 20 realizes automatic feeding of workpieces to be processed, reduces manual operations, improves production efficiency and operation safety, and has higher production capacity. At the same time, the tool magazine assembly 50 is arranged on one side of the equipment mounting frame 40, which realizes the automatic replacement of tools, and at the same time makes the CNC four-axis automatic feeding engraving and milling machine compact in structure and reduces the footprint of production equipment area, saving production costs. The product of the invention is simple in structure, easy to produce, low in cost and easy to popularize.

It should be noted that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A CNC four-axis automatic feeding engraving and milling machine for medical industry is characterized by comprising a workbench, an automatic feeding device and a four-axis machining device, wherein the automatic feeding device and the four-axis machining device are arranged on the workbench in parallel; the automatic feeding device comprises a feeding disc mechanism and a material taking mechanism, the feeding disc mechanism is used for placing the workpieces to be processed, and the material taking mechanism is used for grabbing and conveying the workpieces to be processed; the material taking mechanism is used for grabbing the workpiece to be machined from the material feeding disc mechanism, then moving and placing the workpiece in the workpiece clamping mechanism, and the four-axis machining device is used for engraving and milling the workpiece to be machined.

2. A CNC four-axis automatic feeding engraving and milling machine for medical industry as recited in claim 1, wherein the workbench comprises a loading station and a processing station, the loading tray mechanism is disposed at the loading station, the four-axis processing device is disposed at the processing station, the material taking mechanism comprises a manipulator assembly and a loading arm assembly, the manipulator assembly is disposed at one end of the loading arm assembly facing the processing station and moves under the driving of the loading arm assembly, and the manipulator assembly and the loading arm assembly grab and drive the workpiece to be processed to move from the loading station to the processing station.

3. The CNC four-axis automatic feeding engraving and milling machine for the medical industry of claim 2, wherein the feeding arm assembly comprises a fixed mounting part, an extension moving part, an extension motor, an extension driving wheel and an extension driven wheel, the fixed mounting part and the extension moving part are connected through a rail in a sliding mode, the extension motor is used for driving the extension driving wheel to rotate, the extension driving wheel and the extension driven wheel are in transmission through a rack, a rack moving block is fixedly arranged on the extension moving part, the rack moving block is buckled on the rack, and the rack moving block drives the extension moving part to move synchronously along with the movement of the rack.

4. The CNC four-axis automatic feed engraving and milling machine for the medical industry of claim 3, wherein the feeding arm assembly further comprises an extension limiting block, the rack is arranged around the outer sides of the extension driving wheel and the extension driven wheel, the extension limiting block is arranged in a space defined by the extension driving wheel, the extension driven wheel and the rack, and the distance between the extension limiting block and the rack is smaller than the thickness of the rack moving block.

5. A CNC four-axis automatic feeding engraving and milling machine for medical industry as recited in claim 3, wherein the robot assembly comprises a pressing module and a grabbing module, the grabbing module is arranged at the end of the pressing module, the pressing module drives the grabbing module to move up and down, and the grabbing module is used for clamping a workpiece to be processed; the pressing module comprises a pressing fixing part, a pressing moving part and a pressing cylinder, the pressing fixing part is fixedly arranged on the extending moving part, the pressing moving part is connected with the pressing fixing part in a sliding mode through a pressing sliding rail, and the pressing cylinder pushes the pressing moving part to move up and down along the pressing sliding rail; the grabbing module comprises a pneumatic finger and a first clamp cylinder, the pneumatic finger is fixedly installed on the downward pressing moving part and comprises a plurality of first pneumatic clamps, and the first clamp cylinder is used for driving the first pneumatic clamps to open and close.

6. A CNC four-axis automatic feeding engraving and milling machine for medical industry as recited in claim 1, wherein the tray loading mechanism comprises a tray and a tray driving motor, the tray is disposed on top of the tray driving motor and driven by the tray driving motor to rotate; the material tray comprises a plurality of first workpiece clamps which are regularly arranged, and the first workpiece clamps are used for fixedly placing workpieces to be machined and machined workpieces.

7. A CNC four-axis automatic feed engraving and milling machine for medical industry as set forth in claim 1, further comprising an equipment mounting rack, said equipment mounting rack comprising a cross beam and columns disposed at both ends of said cross beam; the cutter driving mechanism comprises an X-axis module and a Z-axis module which are perpendicular to each other, the X-axis module is fixedly mounted on the beam, the Z-axis module is slidably mounted on the X-axis module, the machining cutter is arranged at the tail end of the Z-axis module, the X-axis module is used for the Z-axis module and the machining cutter to move horizontally, and the Z-axis module is used for the machining cutter to move vertically.

8. A CNC four-axis automatic feed engraving and milling machine for medical industry as claimed in claim 7, wherein said workpiece clamping mechanism comprises a Y-axis module, a B-axis module and a workpiece processing platform, said Y-axis module is arranged below said equipment mounting rack and is arranged vertically to each other two by two between said X-axis module and said Z-axis module, said Y-axis module is used for driving said B-axis module to move horizontally and is perpendicular to the moving direction of said X-axis module; the workpiece processing platform is arranged at the front end of the B-axis module, and the B-axis module is used for driving the workpiece processing platform to swing by taking the Y-axis direction as an axis.

9. The CNC four-axis automatic feeding engraving and milling machine for the medical industry of claim 8, wherein the workpiece processing platform comprises a second pneumatic clamp and a second clamp cylinder, the second pneumatic clamp is arranged at the top end of the second clamp cylinder, and the second clamp cylinder is used for driving the second pneumatic clamp to open and close so as to clamp the workpiece to be processed.

10. The CNC four-axis automatic feed engraving and milling machine for medical industry of claim 7, further comprising a tool magazine assembly, wherein the tool magazine assembly is fixedly installed on the column of the equipment mounting frame through a tool magazine fixing plate, the tool magazine assembly comprises a tool magazine servo motor, a tool magazine rotating wheel, a tool magazine bottom plate and a rotary cutter head, the rotary cutter head and the tool magazine servo motor and the tool magazine rotating wheel are respectively installed on two sides of the tool magazine bottom plate, the tool magazine rotating wheel is fixedly connected with the rotary cutter head, the tool magazine servo motor drives the tool magazine rotating wheel to rotate through a synchronous belt, the tool magazine rotating wheel drives the rotary cutter head to rotate, the rotary cutter head is provided with a plurality of clamping jaws, the clamping jaws are arranged on the same circumference with the center of the rotary cutter head as the center of a circle, and the machining tool is placed on the clamping jaws.

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