CNC automatic feeding mechanism and continuous machining device for medical product, and machining method

Abstract

A CNC automatic feeding mechanism and continuous machining device for a medical product, and a machining method. A CNC automatic feeding mechanism (10) comprises a material container (11), a material distributing apparatus (12), and a material pushing apparatus (13). The material distributing apparatus (12) conveys bars in the material container (11) to the material pushing apparatus (13) one by one, and then an ejector pin (132) pushes the bars to a machining assembly (20), thereby achieving automatic feeding of the bars. A spring (133) is provided in the material pushing apparatus (13), preventing the machining assembly from being damaged due to different lengths of the bars. In a continuous machining device (100), a machining spindle (26) performs a machining operation on the bars, and finished products after completion of machining are collected by a finished product collecting assembly (40). A material pulling assembly (30) pulls out, by a predetermined length, a bar clamped in a second rotating shaft module (25), and the machining assembly (20) continues to perform a machining operation until the machining of the whole bar is completed. In a continuous machining method for a bar, the bar does not need to be cut into blanks, increasing the utilization rate of the bar, avoiding waste of raw materials, achieving continuous machining in a single setup, improving the machining precision and the production efficiency of products, and reducing a manual operation, thus improving the production efficiency and the operation safety.

Description

A CNC automatic feeding mechanism, continuous processing equipment and processing method for medical products

[0001] This application is based on the Chinese patent application with application number 202410189844.9 and application date February 20, 2024, and claims its priority. The entire content of the application is hereby introduced into this application as a whole. Technical Field

[0002] The present application relates to the technical field of CNC machine tools, and in particular to a CNC automatic feeding mechanism, continuous processing equipment and processing method for medical products. Background Art

[0003] CNC machine tools, short for Computer Numerical Control Machine Tools (CNC), are automated machine tools equipped with a program-controlled control system. This control system controls the machine's movements, automatically producing parts to the shape and size specified on the drawing. CNC machine tools effectively address the challenges of machining complex, precise, small-batch, and high-variety parts. They are flexible, high-performance automated machine tools that represent the development direction of modern machine tool control technology and are typical mechatronic devices.

[0004] Medical products are small in size and have high precision requirements. For example, the diameter of the titanium column in medical dental implants is only about 10 mm. CNC machine tools can meet the processing precision requirements, but in the product processing process, the bar material is usually made into a blank of a predetermined length, and then the cut blank is clamped on the processing equipment for processing operations, and finally the processed product is cut from the blank. For example, in the published patent document CN202211143066.7, a CNC four-axis automatic feeding engraving and milling machine for the medical industry, the blanks to be processed are placed on the loading tray in turn and transferred to the four-axis processing device in turn, which not only causes waste of bar material, but also low production efficiency. Application Contents

[0005] In view of this, it is necessary to provide a CNC automatic loading mechanism, continuous processing equipment and processing method for medical products that can achieve one-time clamping and multiple continuous production.

[0006] A CNC automatic feeding mechanism for medical products includes a hopper, a material dividing device and a material pushing device. The material dividing device is arranged below the hopper, and the material pushing device is arranged on one side of the hopper. The material dividing device transports the bars to be processed in the hopper to the material pushing device one by one. The material pushing device transfers the bars to the processing assembly. The processing assembly clamps the bars to be processed and makes the bars protrude a predetermined length for processing operations.

[0007] Preferably, the silo has an upward opening, and includes an inclined bottom plate, a vertically arranged baffle and support plates arranged at both ends of the bottom plate and the baffle. The lengths of the bottom plate and the baffle are adapted to the length of the rod to be processed, and there is a gap between the bottom edge of the bottom plate and the bottom edge of the baffle, and the width of the gap is adapted to the diameter of the rod to be processed; a stop block is provided on the bottom plate.

[0008] Preferably, the material dividing device includes a material dividing module and a loading plate, the material dividing module includes a material dividing cylinder, a material dividing guide rail and a material dividing slider, the loading plate is arranged on the material dividing slider, and the material dividing cylinder drives the material dividing slider and the loading plate to move along the material dividing guide rail; the loading plate has a rod material groove in the length direction, the width and depth of the rod material groove are adapted to the diameter of the rod to be processed, the rod material groove is a through groove, and the rod can move in the rod material groove along the length direction; the loading plate moves at the bottom of the silo, so that the rod material groove can extend out of the bottom of the silo.

[0009] Preferably, the pushing device includes a loading rodless cylinder, a thimble and a thimble pushing device, the loading rodless cylinder includes a loading cylinder slider, the thimble pushing device is fixed on the loading cylinder slider, the thimble pushing device moves synchronously with the loading cylinder slider, and the thimble pushes the rod to be processed in the rod slot of the loading plate to move to the processing component.

[0010] Preferably, the ejector pushing device includes an ejector connecting plate, a spring fixing plate, a spring connecting plate and a spring, the spring fixing plate is fixed on the feeding cylinder slider, the spring fixing plate has a spring mounting groove, the spring mounting groove passes through the spring fixing plate, and the spring is installed in the spring mounting groove; a first convex rail is provided on one side wall of the spring connecting plate, a columnar stopper is provided at one end of the top surface of the first convex rail, the axial direction of the columnar stopper is the same as the length direction of the first convex rail, and the length of the columnar stopper is less than the length of the first convex rail; a first groove is provided on the other side wall of the spring connecting plate, and the length direction of the first groove is perpendicular to the length direction of the first convex rail.

[0011] Preferably, one side wall of the ejector connecting plate has a second convex rail, the length direction of the second convex rail is the same as the length direction of the first groove, the second convex rail extends into the first groove, and slides up and down along the first groove; the ejector connecting plate has an ejector mounting hole, the ejector mounting hole passes through the ejector connecting plate, the ejector is fixed in the ejector mounting hole, and points to the bar to be processed.

[0012] And, a CNC automatic continuous processing equipment for medical products, comprising the CNC automatic feeding mechanism, processing components, drawing components and finished product collection components of the medical products as described above, wherein,

[0013] The loading mechanism is provided on one side of the processing assembly and is used for loading the bar material to be processed;

[0014] The processing assembly includes a first rotary axis module, a second rotary axis module and a processing spindle. The first rotary axis module and the second rotary axis module are arranged perpendicular to each other and are used to clamp the bar to be processed and drive the bar to tilt and / or rotate a predetermined angle. The processing spindle is used to process the bar;

[0015] The puller assembly is provided on one side of the machining spindle and is used to pull out the bar material clamped in the second rotating axis module to a predetermined length;

[0016] The finished product collecting component is used to collect the finished products that have been processed.

[0017] Preferably, it also includes a base and a gantry, the gantry is arranged on the base, the gantry includes a crossbeam and columns arranged at both ends of the crossbeam; the processing assembly includes an X-axis module and a Z-axis module, the X-axis module is arranged on the crossbeam of the gantry, the Z-axis module is arranged on the X-axis module, and moves left and right along the X-axis under the drive of the X-axis module; the processing spindle and the pulling assembly are arranged on the Z-axis module, and move up and down along the Z-axis under the drive of the Z-axis module; a processing tool is installed at the end of the processing spindle, and the processing tool is used for product processing; a Y-axis module is provided on the base, and the Y-axis module is arranged below the gantry and is connected to the X-axis module and the Z-axis module The directions of the groups are perpendicular to each other; the first rotating axis module is arranged at the output end of the Y-axis module, and the first rotating axis module rotates around the Y-axis axis, and the Y-axis module drives the first rotating axis to move horizontally back and forth along the Y-axis direction; the output end of the first rotating axis module is provided with a right-angle connecting piece, and the first rotating axis module and the second rotating axis module are respectively arranged on the two right-angle sides of the right-angle connecting piece; the second rotating axis module includes a second bar guide sleeve, a direct drive motor and a pneumatic rotary chuck arranged in sequence, and the second bar guide sleeve, the direct drive motor and the pneumatic rotary chuck are provided with a center through hole in the center axial direction, and the pneumatic rotary chuck is used to clamp the bar passing through the center through hole.

[0018] Preferably, the pulling assembly includes a pulling cylinder and a pulling claw, the pulling claw is provided at the end of the pulling cylinder, the pulling claw is used to clamp the bar material, and the pulling cylinder is used to drive the pulling claw to move up and down along the Z-axis direction.

[0019] And, a continuous feeding processing method of bar material, using the CNC automatic continuous processing equipment of medical products as described above, the method comprises the following steps:

[0020] Step 1: Place the bar material to be processed in the silo;

[0021] Step 2: The bar material falls into the loading plate from the gap at the bottom of the silo, and the material separation module pushes the loading plate out from the bottom of the silo;

[0022] Step 3: The push pin is aligned with the end of the bar, and the pushing device pushes the bar into the central through hole of the second rotating shaft module;

[0023] Step 4: The pneumatic rotary chuck clamps the bar material, and the processing assembly processes the bar material;

[0024] Step 5: After the finished product is processed, the receiving tray moves to the processing position and the finished product falls into the receiving tray;

[0025] Step 6: The receiving tray moves to the receiving box, the tray door opens, and the finished product falls into the receiving box;

[0026] Step 7: The pulling assembly pulls out the bar material in the second rotating shaft module to a predetermined length;

[0027] Step 8: The processing assembly continues to process the bar material until the entire bar material is processed.

[0028] In the CNC automatic loading mechanism, continuous processing equipment, and processing method for the above-mentioned medical products, in the automatic loading mechanism, the material distribution device transfers the bars in the hopper one by one to the pushing device, and then the ejector pushes the bars to the processing assembly, realizing automatic loading of the bars; the pushing device is provided with the spring to prevent damage to the processing assembly due to the different lengths of the bars. In the continuous processing equipment, the processing spindle processes the bars, and the finished products are collected by the finished product collection assembly. The pulling assembly pulls the bars clamped in the second rotating axis module to a predetermined length, and the processing assembly continues the processing operation until the entire bar is processed. In the continuous processing method of bars of the present application, there is no need to cut the bars into short blanks, which improves the utilization rate of the bars and avoids the waste of raw materials. At the same time, it realizes one-time clamping and continuous processing, improves the processing accuracy and production efficiency of the product, makes the production process more flexible, simple and fast, reduces manual operation, improves production efficiency and operation safety, and increases production capacity. The product structure of the present application is simple, easy to produce, low cost, and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a structural schematic diagram 1 of a CNC automatic feeding mechanism of a medical product according to an embodiment of the present application.

[0030] FIG2 is a second structural diagram of the CNC automatic feeding mechanism of the medical product according to an embodiment of the present application (without a spring fixing plate).

[0031] FIG3 is a schematic structural diagram of a spring fixing plate of a CNC automatic feeding mechanism of a medical product according to an embodiment of the present application.

[0032] FIG4 is a schematic structural diagram of a spring connecting plate of a CNC automatic feeding mechanism of a medical product according to an embodiment of the present application.

[0033] FIG5 is a schematic structural diagram of the ejector pin connecting plate of the CNC automatic feeding mechanism of the medical product according to an embodiment of the present application.

[0034] FIG6 is a schematic structural diagram of a CNC automatic continuous processing device for medical products according to an embodiment of the present application.

[0035] FIG7 is a structural schematic diagram 1 (XZ axis module) of the processing components of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present application.

[0036] FIG8 is a structural diagram of a material removal assembly of a CNC automatic continuous processing device for medical products according to an embodiment of the present application.

[0037] FIG9 is a second structural schematic diagram of the processing components (Y-axis module and first and second rotation axis modules) of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present application.

[0038] FIG10 is a third structural diagram of the processing components (Y-axis module and first and second rotation axis modules) of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present application.

[0039] FIG11 is a schematic structural diagram of a tool magazine assembly of a CNC automatic continuous processing device for medical products according to an embodiment of the present application.

[0040] FIG12 is a flow chart of a continuous bar loading processing method according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] This embodiment takes the CNC automatic loading mechanism, continuous processing equipment and processing method of medical products as an example, and the application will be described in detail below in combination with specific embodiments and drawings.

[0042] Please refer to Figures 1 and 2, which show a CNC automatic loading mechanism 10 for a medical product provided in an embodiment of the present application, including a silo 11, a dividing device 12 and a pushing device 13. The dividing device 12 is arranged below the silo 11, and the pushing device 13 is arranged on one side of the silo 11. The dividing device 12 transports the rods to be processed in the silo 11 to the pushing device 13 one by one, and the pushing device 13 transfers the rods to the processing component 20. The processing component 20 clamps the rods to be processed and makes the rods protrude to a predetermined length for processing operations.

[0043] Preferably, the silo 11 has an upward opening, and the silo 11 includes an inclined bottom plate 111, a vertically arranged baffle 112 and support plates 113 arranged at both ends of the bottom plate 111 and the baffle 112. The lengths of the bottom plate 111 and the baffle 112 are adapted to the length of the rod to be processed, and there is a gap between the bottom edge of the bottom plate 111 and the bottom edge of the baffle 112, and the width of the gap is adapted to the diameter of the rod to be processed; a stop block 1111 is provided on the bottom plate 111.

[0044] Specifically, the stopper 1111 is used to limit the position of the bar material in the silo 11 , especially to prevent the bar material from sliding off the opening of the silo 11 when the length of the bar material is shorter than the length of the silo 11 .

[0045] Specifically, the cross-section of the silo 11 is triangular, and the bottom plate 111 of the silo 11 has a predetermined inclination angle, so that the rods placed therein automatically roll to the bottom of the silo 11 and slide through the gap between the bottom plate 111 and the baffle 112 in turn.

[0046] Specifically, two support plates 113 are provided at both ends of the bottom plate 111 and the baffle 112, respectively, to connect the bottom plate 111 and the baffle 112 to form the upward-opening silo 11. The support plates 113 have a plurality of observation holes at different heights, which are used to view the number of bars in the silo 11 from the side and whether there are any bars to be processed in the silo 11.

[0047] Preferably, the material dividing device 12 includes a material dividing module 121 and a loading plate 122, the material dividing module 121 includes a material dividing cylinder 1211, a material dividing guide rail 1212 and a material dividing slider, the loading plate 122 is arranged on the material dividing slider, the material dividing cylinder 1211 drives the material dividing slider and the loading plate 122 to move along the material dividing guide rail 1212; the loading plate 122 has a bar material groove 1221 in the length direction, the width and depth of the bar material groove 1221 are adapted to the diameter of the bar to be processed, the bar material groove 1221 is a through groove, and the bar can move in the length direction in the bar material groove 1221; the loading plate 122 moves at the bottom of the silo 11, so that the bar material groove 1221 can extend out of the bottom of the silo 11.

[0048] Specifically, the output end of the material distribution cylinder 1211 is provided with a cylinder connecting plate, and the cylinder connecting plate is fixedly connected to the loading plate 122. The material distribution module 121 also includes two limit blocks, and the two limit blocks are respectively provided at the two ends of the stroke of the cylinder connecting plate to limit the movement range of the cylinder connecting plate and the loading plate 122.

[0049] Specifically, the side wall of the bar trough 1221 facing the silo 11 has a raised step 1222 . When the bar trough 1221 extends from the bottom of the silo 11 , the step 1222 blocks the gap at the bottom of the silo 11 .

[0050] Specifically, the material distribution cylinder 1211 drives the loading plate 122 to move. When the bar trough 1221 moves to the gap at the bottom of the silo 11, the bars in the silo 11 slide through the gap and fall into the bar trough 1221. The bar trough 1221 can only accommodate one bar. When the bar trough 1221 moves to the outside of the silo 11, the top of the step 1222 on the side wall of the bar trough 1221 abuts the gap at the bottom of the silo 11, preventing the bars from falling.

[0051] Specifically, a bar material sensor is provided in the bar material slot 1221 , and the bar material sensor is used to detect whether there is a bar material in the bar material slot 1221 .

[0052] Preferably, the pushing device 13 includes a loading rodless cylinder 131, a thimble 132 and a thimble 132 pushing device. The loading rodless cylinder 131 includes a loading cylinder slider 1311. The thimble 132 pushing device is fixed on the loading cylinder slider 1311. The thimble 132 pushing device moves synchronously with the loading cylinder slider 1311. The thimble 132 pushes the bar to be processed in the bar slot 1221 of the loading plate 122 to move to the processing component 20.

[0053] Preferably, the ejector 132 pushing device includes an ejector connecting plate 135 , a spring fixing plate 136 , a spring connecting plate 137 and a spring 133 . Please refer to Figure 3, the spring fixing plate 136 is fixed on the feeding cylinder slider 1311, and the spring fixing plate 136 has a spring mounting groove 1361, and the spring mounting groove 1361 passes through the spring fixing plate 136, and the spring 133 is installed in the spring mounting groove 1361; please refer to Figure 4, a first convex rail 1371 is provided on one side wall of the spring connecting plate 137, and a columnar stopper 1372 is provided at one end of the top surface of the first convex rail 1371, and the axial direction of the columnar stopper 1372 is the same as the length direction of the first convex rail 1371, and the length of the columnar stopper 1372 is less than the length of the first convex rail 1371; a first groove 1373 is provided on the other side wall of the spring connecting plate 137, and the length direction of the first groove 1373 is perpendicular to the length direction of the first convex rail 1371.

[0054] Specifically, the spring mounting slot 1361 has a connected upper and lower portions. The lower portion of the spring mounting slot 1361 has circular sidewalls, while the upper portion has parallel sidewalls. The spring 133 is mounted within the lower portion of the spring mounting slot 1361 and telescopically moves within the lower portion of the spring mounting slot 1361.

[0055] Specifically, the spring connecting plate 137 is fastened to the spring 133 mounting plate. The first raised rail 1371 and the columnar stopper 1372 are disposed within the spring mounting slot 1361 and conform to the shape of the spring mounting slot 1361, enabling the spring connecting plate 137 to move along the probe mounting slot on the spring 133 mounting plate. The first raised rail 1371 extends into the upper portion of the spring mounting slot 1361, and the columnar stopper 1372 extends into the lower portion of the spring mounting slot 1361. The spring 133 expands and contracts under the action of the columnar stopper 1372.

[0056] Preferably, referring to Figure 5, one side wall of the ejector connecting plate 135 has a second raised rail 1351, the length direction of the second raised rail 1351 is the same as the length direction of the first groove 1373, the second raised rail 1351 extends into the first groove 1373, and slides up and down along the first groove 1373; the ejector connecting plate 135 has an ejector mounting hole 1352, the ejector mounting hole 1352 passes through the ejector connecting plate 135, the ejector 132 is fixed in the ejector mounting hole 1352, and points to the bar to be processed.

[0057] Specifically, the second protruding rail 1351 and the first groove 1373 form a movable slide rail, so that the ejector connecting plate 135 can move up and down relative to the spring connecting plate 137 to adjust the height of the ejector 132 .

[0058] Specifically, the first convex rail 1371 and the spring mounting groove 1361 form a movable slide rail, so that the spring connecting plate 137 can move left and right relative to the spring fixing plate 136. When the ejector pin 132 pushes the bar to a predetermined position, the thrust of the ejector pin 132 is buffered by the action of the spring 133, thereby preventing the bar from damaging the processing assembly 20.

[0059] Specifically, the left and right ends of the spring fixing plate 136 each have an end plate 138, and the end plate 138 away from the processing assembly 20 has a second groove 1381, the depth and shape of the second groove 1381 are adapted to the height and shape of the first convex rail 1371, and the first convex rail 1371 slides left and right in the second groove 1381.

[0060] Specifically, the pushing device 13 also includes a first bar guide sleeve 134, which is arranged at the end of the loading rodless cylinder 131 and faces the processing assembly 20. The first bar guide sleeve 134 plays a guiding role when the bar moves.

[0061] Also, please refer to FIG6 , which shows a CNC automatic continuous processing device 100 for medical products, including the CNC automatic feeding mechanism 10 for medical products, a processing assembly 20 , a material removal assembly 30 and a finished product collection assembly 40 , wherein:

[0062] The loading mechanism is provided on one side of the processing assembly 20 and is used for loading the bar material to be processed;

[0063] The processing assembly 20 includes a first rotary axis module 24, a second rotary axis module 25, and a processing spindle 26. The first rotary axis module 24 and the second rotary axis module 25 are arranged perpendicular to each other and are used to clamp the bar to be processed and drive the bar to tilt and / or rotate a predetermined angle. The processing spindle 26 is used to process the bar;

[0064] The puller assembly 30 is provided on one side of the machining spindle 26 and is used to pull the bar material clamped in the second rotating shaft module 25 out to a predetermined length;

[0065] The finished product collecting assembly 40 is used to collect the finished products that have been processed.

[0066] Preferably, the processing equipment 100 also includes a base 60 and a gantry 70, the gantry 70 is arranged on the base 60, the gantry 70 includes a crossbeam 71 and columns 72 arranged at both ends of the crossbeam 71; the processing assembly 20 includes an X-axis module 21 and a Z-axis module 23, please refer to Figure 7, the X-axis module 21 is arranged on the crossbeam 71 of the gantry 70, the Z-axis module 23 is arranged on the X-axis module 21, and moves left and right along the X-axis under the drive of the X-axis module 21; the processing spindle 26 and the stripping assembly 30 are arranged on the Z-axis module 23, and move up and down along the Z-axis under the drive of the Z-axis module 23; a processing tool 261 is installed at the end of the processing spindle 26, and the processing tool 261 is used for product processing operations; a Y-axis module 22 is provided on the base 60, please refer to Figures 9 and 10, and the Y-axis module 22 is provided on the gantry 70 below, and perpendicular to the directions of the X-axis module 21 and the Z-axis module 23; the first rotating axis module 24 is arranged at the output end of the Y-axis module 22, and the first rotating axis module 24 rotates around the Y-axis axis, and the Y-axis module 22 drives the first rotating axis to move horizontally back and forth along the Y-axis direction; the output end of the first rotating axis module 24 is provided with a right-angle connector 241, and the first rotating axis module 24 and the second rotating axis module 25 are respectively arranged on the two right-angle sides of the right-angle connector 241; the second rotating axis module 25 includes a second bar guide sleeve 251, a direct drive motor 252 and a pneumatic rotary chuck 253 arranged in sequence, and the second bar guide sleeve 251, the direct drive motor 252 and the pneumatic rotary chuck 253 are provided with a center through hole in the center axis direction, and the pneumatic rotary chuck 253 is used to clamp the bar passing through the center through hole.

[0067] Specifically, the second rotating shaft module 25 is rigidly connected to the first rotating shaft module 24 via the right-angle connector 241, ensuring that the central axis of the second rotating shaft module 25 is always perpendicular to the central axis of the first rotating shaft. The first rotating shaft module 24 and the second rotating shaft module 25 utilize a DD motor structure with a maximum speed of 3000 rpm and 360-degree rotation.

[0068] Specifically, the bar stock delivered from the automatic loading mechanism extends from the second bar stock guide sleeve 251 into the second rotary axis module 25, where it is clamped by the pneumatic rotary chuck 253. The Y-axis module 22 drives the bar stock to move back and forth in the horizontal plane, while the first and second rotary axis modules 24 and 25 rotate the bar stock at any angle. The X-axis module 21 and Z-axis module 23 drive the machining spindle 26 to move in the vertical plane to perform machining operations on the bar stock.

[0069] Specifically, when loading, the second rotating axis module 25 is in a horizontal position, the bar material passes through the rear end of the second rotating axis module 25 and extends from the front end of the second rotating axis module 25, and the loading length of the bar material is positioned by the tool handle of the processing spindle 26. In order to prevent bars of different lengths from damaging the processing spindle 26, the spring 133 in the pushing device 13 plays a buffering role.

[0070] Specifically, when the length of the bar extending out of the second rotating axis module 25 does not meet the processing requirements, the first rotating axis module 24 rotates the second rotating axis module 25 to a vertical state, and the pulling assembly 30 grabs the top of the bar. The pneumatic rotary chuck 253 of the second rotating axis module 25 releases the bar. The pulling assembly 30 moves upward along the Z axis to pull the bar to a predetermined height. After the pneumatic rotary chuck 253 clamps the bar, the pulling assembly 30 releases the bar, and the processing spindle 26 performs continuous processing operations on the bar.

[0071] Preferably, referring to Figure 8, the pulling assembly 30 includes a pulling cylinder 31 and a pulling jaw 33. The pulling jaw 33 is provided at the end of the pulling cylinder 31. The pulling jaw 33 is used to clamp the bar material. The pulling cylinder 31 is used to drive the pulling jaw 33 to move up and down along the Z-axis direction.

[0072] Specifically, the material pulling assembly 30 further includes a clamping claw cylinder 32 , and the clamping claw cylinder 32 is used to drive the opening and closing of the material pulling claw 33 to grab the bar material.

[0073] Specifically, it also includes a tool magazine assembly 50, please refer to Figure 11, the tool magazine assembly 50 is fixedly installed on the column 72 of the gantry 70 through a tool magazine fixing plate, and the tool magazine assembly 50 includes a tool magazine servo motor 51 and a rotating cutter disc 52. The tool magazine servo motor 51 drives the rotating cutter disc 52 to rotate, and the rotating cutter disc 52 is equipped with a plurality of claws 53. The plurality of claws 53 are arranged on the same circumference with the center of the rotating cutter disc 52 as the center, and the processing tool 261 is placed on the claw 53.

[0074] Specifically, the base 60 has a chip collection hole 61, which is a funnel-shaped sinking hole. The chip collection hole 61 is located below the processing assembly 20, at the processing station of the base 60. During bar processing, chips fall into the chip collection hole 61 and slide along the inner sidewall of the chip collection hole 61 to the bottom of the chip collection hole 61, thereby improving the chip recovery rate.

[0075] Also, referring to FIG. 12 , a method for continuously feeding and processing bar materials is shown, using the CNC automatic continuous processing equipment for medical products as described above, the method comprising the following steps:

[0076] Step 1: Place the bar material to be processed in the hopper 11;

[0077] Step 2: The bar material falls into the loading plate 122 from the gap at the bottom of the silo 11, and the material separation module 121 pushes the loading plate 122 out from the bottom of the silo 11;

[0078] Step 3: The ejector pin 132 is aligned with the end of the bar, and the pushing device 13 pushes the bar into the central through hole of the second rotating shaft module 25;

[0079] Step 4: The pneumatic rotary chuck 253 clamps the bar material, and the processing assembly 20 processes the bar material;

[0080] Step 5: After the finished product is processed, the receiving tray moves to the processing position and the finished product falls into the receiving tray;

[0081] Step 6: The receiving tray moves to the receiving box, the tray door opens, and the finished product falls into the receiving box;

[0082] Step 7: The material pulling assembly 30 pulls out the bar material in the second rotating shaft module 25 to a predetermined length;

[0083] In step eight, the processing assembly 20 continues to process the bar material until the entire bar material is processed.

[0084] Specifically, in this embodiment, the steps of the finished product collection process in step 5 specifically include:

[0085] After the product processing is completed, the second rotary axis module 25 swings to the horizontal direction, and the processing tool 261 on the processing spindle 26 cuts off the root of the finished product, so that the finished product falls into the receiving tray.

[0086] Specifically, in other embodiments, when the connection between the product and the bar is small, the stripper assembly 30 clamps the finished product, and the second rotating shaft module 25 swings to separate the finished product from the bar. The stripper assembly 30 releases the finished product, allowing it to fall into the receiving tray. This method of collecting finished products requires that the finished product be relatively rigid and not easily deformed by twisting, and that the top of the finished product not be easily deformed by being clamped.

[0087] In the CNC automatic loading mechanism 10, continuous processing equipment 100, and processing method for the above-mentioned medical products, in the automatic loading mechanism, the material dividing device 12 transfers the bar stock in the hopper 11 one by one to the pushing device 13, and then the ejector pin 132 pushes the bar stock to the processing assembly 20, thereby achieving automatic loading of the bar stock; the pushing device 13 is provided with the spring 133 to prevent damage to the processing assembly 20 due to the different lengths of the bar stock. In the continuous processing equipment, the processing spindle 26 processes the bar stock, and the finished product is collected by the finished product collection assembly 40. The pulling assembly 30 pulls the bar stock clamped in the second rotating axis module 25 to a predetermined length, and the processing assembly 20 continues the processing operation until the entire bar stock is processed. The continuous bar processing method of the present application eliminates the need to cut the bar into blanks, thereby improving bar utilization and avoiding waste of raw materials. Furthermore, one-time clamping and continuous processing are achieved, thereby improving product processing accuracy and production efficiency. This makes the production process more flexible, simple, and quick, reduces manual operation, improves production efficiency and operational safety, and increases production capacity. The product of the present application has a simple structure, is easy to produce, is low-cost, and is readily marketable.

[0088] It should be noted that the above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that the present application is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A CNC automatic feeding mechanism for medical products, characterized in that: It includes a silo, a material dividing device and a material pushing device. The material dividing device is arranged below the silo, and the material pushing device is arranged on one side of the silo. The material dividing device transports the rods to be processed in the silo to the material pushing device one by one. The material pushing device transports the rods to the processing assembly. The processing assembly clamps the rods to be processed and makes the rods protrude to a predetermined length for processing operations.

2. The CNC automatic feeding mechanism for medical products according to claim 1, characterized in that: The hopper has an upward opening, and includes an inclined bottom plate, a vertically arranged baffle and support plates arranged at both ends of the bottom plate and the baffle. The lengths of the bottom plate and the baffle are adapted to the length of the rod to be processed, and there is a gap between the bottom edge of the bottom plate and the bottom edge of the baffle, and the width of the gap is adapted to the diameter of the rod to be processed; a stopper is provided on the bottom plate.

3. The CNC automatic feeding mechanism for medical products according to claim 1, characterized in that: The material dividing device includes a material dividing module and a loading plate. The material dividing module includes a material dividing cylinder, a material dividing guide rail and a material dividing slider. The loading plate is arranged on the material dividing slider. The material dividing cylinder drives the material dividing slider and the loading plate to move along the material dividing guide rail. The loading plate has a rod material groove in the length direction. The width and depth of the rod material groove are adapted to the diameter of the rod to be processed. The rod material groove is a through groove, and the rod can move in the rod material groove along the length direction. The loading plate moves at the bottom of the silo so that the rod material groove can extend out of the bottom of the silo.

4. The CNC automatic feeding mechanism for medical products according to claim 1, characterized in that: The pushing device includes a loading rodless cylinder, a thimble and a thimble pushing device. The loading rodless cylinder includes a loading cylinder slider. The thimble pushing device is fixed on the loading cylinder slider. The thimble pushing device moves synchronously with the loading cylinder slider. The thimble pushes the rod to be processed in the rod slot of the loading plate to move to the processing assembly.

5. The CNC automatic feeding mechanism for medical products according to claim 4, characterized in that: The ejector pushing device includes an ejector connecting plate, a spring fixing plate, a spring connecting plate and a spring, the spring fixing plate is fixed on the feeding cylinder slider, the spring fixing plate has a spring mounting groove, the spring mounting groove passes through the spring fixing plate, and the spring is installed in the spring mounting groove; a first convex rail is provided on one side wall of the spring connecting plate, a columnar stopper is provided at one end of the top surface of the first convex rail, the axial direction of the columnar stopper is the same as the length direction of the first convex rail, and the length of the columnar stopper is less than the length of the first convex rail; a first groove is provided on the other side wall of the spring connecting plate, and the length direction of the first groove is perpendicular to the length direction of the first convex rail.

6. The CNC automatic feeding mechanism for medical products according to claim 5, characterized in that: One side wall of the ejector connecting plate has a second convex rail, the length direction of the second convex rail is the same as the length direction of the first groove, the second convex rail extends into the first groove, and slides up and down along the first groove; the ejector connecting plate has an ejector mounting hole, the ejector mounting hole passes through the ejector connecting plate, the ejector is fixed in the ejector mounting hole and points to the bar to be processed.

7. A CNC automatic continuous processing equipment for medical products, characterized in that: The medical product comprises a CNC automatic feeding mechanism, a processing assembly, a material removal assembly and a finished product collection assembly according to any one of claims 1 to 6, wherein: The loading mechanism is provided on one side of the processing assembly and is used for loading the bar material to be processed; The processing assembly includes a first rotary axis module, a second rotary axis module and a processing spindle. The first rotary axis module and the second rotary axis module are arranged perpendicular to each other and are used to clamp the bar to be processed and drive the bar to tilt and / or rotate a predetermined angle. The processing spindle is used to process the bar; The puller assembly is provided on one side of the machining spindle and is used to pull out the bar material clamped in the second rotating axis module to a predetermined length; The finished product collecting component is used to collect the finished products that have been processed.

8. The CNC automatic continuous processing equipment for medical products according to claim 7, characterized in that: It also includes a base and a gantry, the gantry is arranged on the base, the gantry includes a crossbeam and columns arranged at both ends of the crossbeam; the processing assembly includes an X-axis module and a Z-axis module, the X-axis module is arranged on the crossbeam of the gantry, the Z-axis module is arranged on the X-axis module, and moves left and right along the X-axis under the drive of the X-axis module; the processing spindle and the pulling assembly are arranged on the Z-axis module, and move up and down along the Z-axis under the drive of the Z-axis module; a processing tool is installed at the end of the processing spindle, and the processing tool is used for product processing; a Y-axis module is provided on the base, and the Y-axis module is arranged below the gantry and is connected to the X-axis module and the Z-axis module The directions are perpendicular to each other; the first rotating axis module is arranged at the output end of the Y-axis module, and the first rotating axis module rotates around the Y-axis axis, and the Y-axis module drives the first rotating axis to move horizontally back and forth along the Y-axis direction; the output end of the first rotating axis module is provided with a right-angle connecting piece, and the first rotating axis module and the second rotating axis module are respectively provided on the two right-angle sides of the right-angle connecting piece; the second rotating axis module includes a second bar guide sleeve, a direct drive motor and a pneumatic rotary chuck arranged in sequence, and the second bar guide sleeve, the direct drive motor and the pneumatic rotary chuck are provided with a center through hole in the center axial direction, and the pneumatic rotary chuck is used to clamp the bar passing through the center through hole.

9. The CNC automatic continuous processing equipment for medical products according to claim 7, characterized in that: The material pulling assembly includes a material pulling cylinder and a material pulling claw. The material pulling claw is arranged at the end of the material pulling cylinder. The material pulling claw is used to clamp the bar material. The material pulling cylinder is used to drive the material pulling claw to move up and down along the Z-axis direction.

10. A method for continuous feeding and processing of bar materials, using the CNC automatic continuous processing equipment for medical products according to any one of claims 7 to 9, characterized in that: The method comprises the following steps: Step 1: Place the bar material to be processed in the silo; Step 2: The bar material falls into the loading plate from the gap at the bottom of the silo, and the material separation module pushes the loading plate out from the bottom of the silo; Step 3: The push pin is aligned with the end of the bar, and the pushing device pushes the bar into the central through hole of the second rotating shaft module; Step 4: The pneumatic rotary chuck clamps the bar material, and the processing assembly processes the bar material; Step 5: After the finished product is processed, the receiving tray moves to the processing position and the finished product falls into the receiving tray; Step 6: The receiving tray moves to the receiving box, the tray door opens, and the finished product falls into the receiving box; Step 7: The pulling assembly pulls out the bar material in the second rotating shaft module to a predetermined length; Step 8: The processing assembly continues to process the bar material until the entire bar material is processed.

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