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

Abstract

The CNC automatic feeding mechanism for the medical products, the continuous machining equipment and the machining method are characterized in that bar materials in a stock bin are conveyed to a pushing device one by one through a distributing device, then the bar materials are pushed to a machining assembly through an ejector pin, and automatic feeding of the bar materials is achieved; and a spring is arranged in the pushing device, so that the machining assembly is prevented from being damaged due to different lengths of the bars. In the continuous machining equipment, a machining main shaft carries out machining operation on the bar, machined finished products are collected through a finished product collecting assembly, the bar clamped in a second rotating shaft module is pulled out by a preset length through a material pulling assembly, and machining operation continues to be carried out through a machining assembly till the whole bar is machined. According to the continuous bar machining method, the bars do not need to be cut into blanks, the utilization rate of the bars is increased, waste of raw materials is avoided, one-time clamping and continuous machining are achieved, the machining precision and production efficiency of products are improved, manual operation is reduced, and the production efficiency and operation safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled machine tools, and in particular to a CNC automatic feeding mechanism, continuous processing equipment and a processing method for medical products. Background Art

[0002] CNC machine tools are short for Computer numerical control machine tools (CNC). They are automated machine tools equipped with a program control system. The control system controls the movements of the machine tools and automatically processes parts according to the shapes and sizes required by the drawings. CNC machine tools have solved the problems of complex, precise, small batch, and multi-variety parts processing. They are flexible and efficient automated machine tools, representing the development direction of modern machine tool control technology, and are typical mechatronics equipment.

[0003] Medical products are small in size and require high precision. 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, and finally the processed product is cut from the blank. For example, in the disclosed 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. Summary of the invention

[0004] In view of this, it is necessary to provide a CNC automatic feeding mechanism, continuous processing equipment and processing method for medical products that can achieve one-time clamping and multiple continuous production.

[0005] A CNC automatic feeding mechanism for medical products comprises a material bin, a material dividing device and a material pushing device, wherein the material dividing device is arranged below the material bin, and the material pushing device is arranged on one side of the material bin. The material dividing device conveys the bars to be processed in the material bin to the material pushing device one by one, and the material pushing device conveys the bars to a processing assembly, which clamps the bars to be processed and makes the bars protrude by a predetermined length for processing operations.

[0006] 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 length 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.

[0007] 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, 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.

[0008] Preferably, the pushing device includes a feeding rodless cylinder, an ejector and an ejector pushing device, the feeding rodless cylinder includes a feeding cylinder slider, the ejector pushing device is fixed on the feeding cylinder slider, the ejector pushing device moves synchronously with the feeding cylinder slider, and the ejector pushes the rod to be processed in the rod slot of the feeding plate to move to the processing component.

[0009] 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 runs through the spring fixing plate, and the spring is installed in the spring mounting groove; a first convex rail is provided on a side wall of one side 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.

[0010] 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 rod to be processed.

[0011] And, a CNC automatic continuous processing equipment for medical products, comprising the CNC automatic feeding mechanism, processing assembly, material pulling assembly and finished product collecting assembly of the medical products as described above, wherein: The feeding mechanism is arranged on one side of the processing assembly and is used for feeding the bar material to be processed; The processing assembly includes a first rotating axis module, a second rotating axis module and a processing spindle. The first rotating axis module and the second rotating axis module are arranged perpendicular to each other and are used to clamp the bar material to be processed and drive the bar material to tilt and / or rotate a predetermined angle. The processing spindle is used to process the bar material; The material pulling assembly is arranged on one side of the processing 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.

[0012] 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 processing operations of the product; a Y-axis module is provided on the base, and the Y-axis module is arranged below the gantry and 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, the first rotating axis module rotates around the Y-axis axis, and the Y-axis module drives the first rotating axis to move horizontally forward and backward along the Y-axis direction; a right-angle connector is provided at the output end of the first rotating axis module, and the first rotating axis module and the second rotating axis module are respectively arranged on two right-angle sides of the right-angle connector; the second rotating axis module includes a second bar guide sleeve, a direct-drive motor and a pneumatic rotary chuck which are 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.

[0013] Preferably, the material pulling assembly comprises a material pulling cylinder and a material pulling jaw, wherein the material pulling jaw is arranged at the end of the material pulling cylinder, the material pulling jaw is used to clamp the bar material, and the material pulling cylinder is used to drive the material pulling jaw to move up and down along the Z-axis direction.

[0014] And, a bar material continuous feeding processing method, using the CNC automatic continuous processing equipment for medical products as described above, the method comprises the following steps: Step 1: placing 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 component 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 material pulling assembly pulls out the bar material in the second rotating shaft module to a predetermined length; Step eight, the processing assembly continues to process the bar material continuously until the entire bar material is processed.

[0015] In the CNC automatic feeding mechanism, continuous processing equipment and processing method of the above-mentioned medical products, in the automatic feeding mechanism, the material dividing device transfers the bar materials in the material bin to the pushing device one by one, and then the ejector pushes the bar materials to the processing component to realize the automatic feeding of the bar materials; the pushing device is provided with the spring to avoid damage to the processing component due to the different lengths of the bar materials. In the continuous processing equipment, the processing spindle processes the bar materials, and the finished products are collected by the finished product collection component. The pulling component pulls out the bar materials clamped in the second rotating shaft module by a predetermined length, and the processing component continues to perform the processing operation until the whole bar materials are processed. In the continuous processing method of the bar materials of the present invention, there is no need to cut the bar materials into short blanks, which improves the utilization rate of the bar materials and avoids the waste of raw materials. At the same time, one-time clamping and continuous processing are realized, which improves the processing accuracy and production efficiency of the product, makes the production and processing process more flexible, simple and fast, reduces manual operations, improves production efficiency and operation safety, and has higher production capacity. The product structure of the present invention is simple, easy to produce, low cost, and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the CNC automatic feeding mechanism of the medical product of the embodiment of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of the CNC automatic feeding mechanism of the medical product of the embodiment of the present invention. Figure 2 (Without spring retaining plate).

[0018] Figure 3 It is a structural schematic diagram of a spring fixing plate of a CNC automatic feeding mechanism of a medical product according to an embodiment of the present invention.

[0019] Figure 4 It is a structural schematic diagram of a spring connecting plate of a CNC automatic feeding mechanism of a medical product according to an embodiment of the present invention.

[0020] Figure 5It is a structural schematic diagram of the ejector connection plate of the CNC automatic feeding mechanism of the medical product according to the embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of a CNC automatic continuous processing device for medical products according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the processing components of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present invention. Figure 1 (XZ axis module).

[0023] Figure 8 It is a structural schematic diagram of a material pulling component of a CNC automatic continuous processing device for medical products according to an embodiment of the present invention.

[0024] Fig. 9 This is a schematic diagram of the structure of the processing components of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present invention. Figure 2 (Y-axis module and the first and second rotation axis modules).

[0025] Fig.10 This is a schematic diagram of the structure of the processing components of the CNC automatic continuous processing equipment for medical products according to an embodiment of the present invention. Figure 3 (Y-axis module and the first and second rotation axis modules).

[0026] Fig.11 It is a structural schematic diagram of a tool magazine assembly of a CNC automatic continuous processing device for medical products according to an embodiment of the present invention.

[0027] Fig.12 It is a flow chart of a continuous bar feeding processing method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] This embodiment takes the CNC automatic feeding mechanism, continuous processing equipment and processing method of medical products as an example, and the present invention will be described in detail below in combination with specific embodiments and drawings.

[0029] See also Figure 1 and Figure 2 , showing a CNC automatic feeding mechanism 10 for a medical product provided by an embodiment of the present invention, comprising a material bin 11, a material dividing device 12 and a material pushing device 13, wherein the material dividing device 12 is arranged below the material bin 11, and the material pushing device 13 is arranged on one side of the material bin 11, and the material dividing device 12 conveys the rods to be processed in the material bin 11 to the material pushing device 13 one by one, and the material pushing device 13 conveys the rods to the processing assembly 20, and the processing assembly 20 clamps the rods to be processed and makes the rods protrude by a predetermined length for processing operations.

[0030] Preferably, the silo 11 has an upward opening, and 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 lengths of the rods 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 rods to be processed; a stopper 1111 is provided on the bottom plate 111.

[0031] 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 .

[0032] 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.

[0033] Specifically, the two support plates 113 are respectively disposed at the two ends of the bottom plate 111 and the baffle plate 112, and are used to connect the bottom plate 111 and the baffle plate 112 to form an upwardly opened silo 11. The support plate 113 has a plurality of observation holes distributed at different heights, and the observation holes are used to check the number of bars in the silo 11 from the side and whether there are bars to be processed in the silo 11.

[0034] 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 rod material groove 1221 in the length direction, the width and depth of the rod material groove 1221 are adapted to the diameter of the rod to be processed, the rod material groove 1221 is a through groove, and the rod can move in the rod material groove 1221 along the length direction; the loading plate 122 moves at the bottom of the silo 11, so that the rod material groove 1221 can extend out of the bottom of the silo 11.

[0035] Specifically, a cylinder connecting plate is provided at the output end of the material dividing cylinder 1211, and the cylinder connecting plate is fixedly connected to the loading plate 122. The material dividing module 121 also includes two limit blocks, which are respectively arranged 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.

[0036] Specifically, the side wall of the bar material slot 1221 facing the silo 11 has a protruding step 1222 . When the bar material slot 1221 extends from the bottom of the silo 11 , the step 1222 blocks the gap at the bottom of the silo 11 .

[0037] Specifically, the material distribution cylinder 1211 drives the loading plate 122 to move, and when the bar material slot 1221 moves to the gap at the bottom of the bin 11, the bar material in the bin 11 slides from the gap into the bar material slot 1221, and the bar material slot 1221 can only accommodate one bar material. When the bar material slot 1221 moves to the outside of the bin 11, the top of the step 1222 of the side wall of the bar material slot 1221 abuts against the gap at the bottom of the bin 11 to prevent the bar material from falling.

[0038] 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 .

[0039] Preferably, the pushing device 13 includes a loading rodless cylinder 131, a ejector pin 132 and an ejector pin 132 pushing device. The loading rodless cylinder 131 includes a loading cylinder slider 1311. The ejector pin 132 pushing device is fixed on the loading cylinder slider 1311. The ejector pin 132 pushing device moves synchronously with the loading cylinder slider 1311. The ejector pin 132 pushes the rod to be processed in the rod slot 1221 of the loading plate 122 to move to the processing component 20.

[0040] Preferably, the ejector pin 132 pushing device includes an ejector pin connecting plate 135, a spring fixing plate 136, a spring connecting plate 137 and a spring 133. Figure 3 The spring fixing plate 136 is fixed on the feeding cylinder slider 1311, and the spring fixing plate 136 has a spring installation groove 1361, and the spring installation groove 1361 runs through the spring fixing plate 136, and the spring 133 is installed in the spring installation 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.

[0041] Specifically, the spring installation slot 1361 has an upper half and a lower half connected to each other, the lower half of the spring installation slot 1361 has a circular side wall, and the upper half has parallel side walls. The spring 133 is installed in the lower half of the spring installation slot 1361 and moves telescopically inside the lower half of the spring installation slot 1361.

[0042] Specifically, the spring connecting plate 137 is buckled on the spring 133 mounting plate, the first convex rail 1371 and the columnar stopper 1372 are arranged in the spring mounting groove 1361, and are adapted to the shape of the spring mounting groove 1361, so that the spring connecting plate 137 can move along the probe mounting groove on the spring 133 mounting plate. The first convex rail 1371 extends into the upper part of the spring mounting groove 1361, and the columnar stopper 1372 extends into the lower part of the spring mounting groove 1361, and the spring 133 is extended and retracted under the action of the columnar stopper 1372.

[0043] Preferably, see Figure 5 One side wall of the ejector connecting plate 135 has a second convex rail 1351, and the length direction of the second convex rail 1351 is the same as the length direction of the first groove 1373. The second convex 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, and 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.

[0044] 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 .

[0045] 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 rod to a predetermined position, the thrust of the ejector pin 132 is buffered by the spring 133 to prevent the rod from damaging the processing assembly 20.

[0046] Specifically, the left and right ends of the spring fixing plate 136 are respectively provided with 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 .

[0047] 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.

[0048] Also, see Figure 6 , shows a CNC automatic continuous processing device 100 for medical products, including the CNC automatic feeding mechanism 10 for medical products as described above, a processing component 20, a material removal component 30 and a finished product collection component 40, wherein, The feeding mechanism is provided at one side of the processing assembly 20 and is used for feeding the bar material to be processed; The processing assembly 20 includes a first rotating shaft module 24, a second rotating shaft module 25 and a processing spindle 26. The first rotating shaft module 24 and the second rotating shaft module 25 are arranged perpendicular to each other and are used to clamp the bar material to be processed and drive the bar material to tilt and / or rotate a predetermined angle. The processing spindle 26 is used to process the bar material; The material pulling assembly 30 is disposed on one side of the processing spindle 26 and is used to pull the bar material clamped in the second rotating axis module 25 out to a predetermined length; The finished product collecting assembly 40 is used to collect the finished products that have been processed.

[0049] Preferably, the processing equipment 100 further includes a base 60 and a gantry 70, wherein the gantry 70 is disposed on the base 60, and the gantry 70 includes a crossbeam 71 and columns 72 disposed at both ends of the crossbeam 71; the processing assembly 20 includes an X-axis module 21 and a Z-axis module 23, see 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 driven by the X-axis module 21; the processing spindle 26 and the material removal assembly 30 are arranged on the Z-axis module 23, and move up and down along the Z-axis driven by 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; the base 60 is provided with a Y-axis module 22, please refer to Fig. 9 and Fig.10, the Y-axis module 22 is arranged below the gantry 70, and is 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, 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 forward and backward along the Y-axis direction; a right-angle connector 241 is provided at the output end of the first rotating axis module 24, and the first rotating axis module 24 and the second rotating axis module 25 are respectively arranged on 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, the second bar guide sleeve 251, the direct drive motor 252 and the pneumatic rotary chuck 253 are provided with a central through hole in the central axial direction, and the pneumatic rotary chuck 253 is used to clamp the bar passing through the central through hole.

[0050] Specifically, the second rotating shaft module 25 is rigidly connected to the first rotating shaft module 24 through the right-angle connector 241, so that the central axis of the second rotating shaft module 25 and the central axis of the first rotating shaft are always perpendicular to each other. The first rotating shaft module 24 and the second rotating shaft module 25 adopt a DD motor structure with a maximum speed of 3000r / min and can rotate 360 ​​degrees.

[0051] Specifically, the bar material transmitted from the automatic feeding mechanism extends from the second bar material guide sleeve 251 into the second rotating axis module 25, and is clamped by the pneumatic rotary chuck 253. The Y-axis module 22 drives the bar material to move back and forth in the horizontal plane, and the first rotating axis module 24 and the second rotating axis module 25 drive the bar material to rotate with an arbitrary inclination angle. The X-axis module 21 and the Z-axis module 23 drive the processing spindle 26 to move in the vertical plane to process the bar material.

[0052] Specifically, during loading, the second rotating shaft module 25 is in a horizontal position, the bar material is inserted from the rear end of the second rotating shaft module 25 and extends from the front end of the second rotating shaft 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 the processing spindle 26 from being damaged by bars of different lengths, the spring 133 in the pushing device 13 plays a buffering role.

[0053] 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, the pulling assembly 30 grabs the top of the bar, and 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.

[0054] Preferably, see Figure 8 The material pulling assembly 30 includes a material pulling cylinder 31 and a material pulling jaw 33. The material pulling jaw 33 is arranged at the end of the material pulling cylinder 31. The material pulling jaw 33 is used to clamp the bar material. The material pulling cylinder 31 is used to drive the material pulling jaw 33 to move up and down along the Z-axis direction.

[0055] Specifically, the material pulling assembly 30 further includes a clamping jaw cylinder 32, and the clamping jaw cylinder 32 is used to drive the opening and closing of the material pulling clamping jaw 33 to grab the bar material.

[0056] Specifically, it also includes a tool magazine assembly 50, see Fig.11 The tool magazine assembly 50 is fixedly mounted on the column 72 of the gantry 70 through a tool magazine fixing plate. 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. 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. The machining tool 261 is placed on the claw 53.

[0057] Specifically, the base 60 has a chip collection hole 61, which is a funnel-type sinking hole, and is disposed below the processing assembly 20, at the processing station of the base 60. When the bar is processed, the chips fall into the chip collection hole 61 and slide along the inner side wall of the chip collection hole 61 to the bottom of the chip collection hole 61, so as to improve the recovery rate of the chips.

[0058] Also, see Fig.12 , showing a bar material continuous feeding processing method, using the CNC automatic continuous processing equipment for medical products as described above, the method comprises the following steps: Step 1, placing the bar material to be processed in the silo 11; 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; 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; Step 4: The pneumatic rotary chuck 253 clamps the bar material, and the processing assembly 20 performs processing operations on 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 material pulling assembly 30 pulls out the bar material in the second rotating shaft module 25 to a predetermined length; Step eight, the processing assembly 20 continues to process the bar material until the entire bar material is processed.

[0059] Specifically, in this embodiment, the steps of the finished product collection process in step 5 specifically include: After the product processing is completed, the second rotating 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.

[0060] Specifically, in other embodiments, when the connection between the product and the bar is small, the material pulling assembly 30 clamps the finished product, the second rotating shaft module 25 swings, the finished product is separated from the bar, and the material pulling assembly 30 releases the finished product, so that the finished product falls into the receiving tray. This method of collecting finished products requires that the finished product has a large rigidity and is not easy to be twisted and deformed, and the top of the finished product is not easy to be deformed due to being clamped.

[0061] In the CNC automatic feeding mechanism 10, continuous processing equipment 100 and processing method of the above-mentioned medical products, in the automatic feeding mechanism, the material dividing device 12 transfers the bar materials in the silo 11 to the pushing device 13 one by one, and then the ejector 132 pushes the bar materials to the processing assembly 20 to realize automatic feeding of the bar materials; the spring 133 is provided in the pushing device 13 to avoid damage to the processing assembly 20 due to the different lengths of the bar materials. In the continuous processing equipment, the processing spindle 26 processes the bar materials, and the finished products are collected by the finished product collection assembly 40. The pulling assembly 30 pulls out the bar materials clamped in the second rotating axis module 25 by a predetermined length, and the processing assembly 20 continues to perform the processing operation until the entire bar material is processed. In the continuous processing method of the bar material of the present invention, there is no need to cut the bar material into blanks, which improves the utilization rate of the bar material and avoids the waste of raw materials. At the same time, one-time clamping and continuous processing are realized, which 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 has higher production capacity. The product of the present invention has a simple structure, is easy to produce, has low cost, and is easy to promote.

[0062] It should be noted that the above is only a preferred embodiment of the present invention and is 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

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

2. The CNC automatic feeding mechanism for medical products according to claim 1, characterized in that: 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 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 material to be processed. The rod material groove is a through groove, and the rod material 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 feeding rodless cylinder, an ejector and an ejector pushing device. The feeding rodless cylinder includes a feeding cylinder slider. The ejector pushing device is fixed on the feeding cylinder slider. The ejector pushing device moves synchronously with the feeding cylinder slider. The ejector pushes the rod to be processed in the rod slot of the feeding plate to move to the processing component.

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, wherein the spring fixing plate is fixed on the feeding cylinder slider, the spring fixing plate has a spring mounting groove, the spring mounting groove penetrates the spring fixing plate, and the spring is mounted in the spring mounting groove; a first convex rail is provided on a side wall of one side 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: A 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 rod to be processed.

7. A CNC automatic continuous processing equipment for medical products, characterized in that: The invention comprises a CNC automatic feeding mechanism, a processing assembly, a material removal assembly and a finished product collection assembly of a medical product as described in any one of claims 1 to 6, wherein: The feeding mechanism is arranged on one side of the processing assembly and is used for feeding the bar material to be processed; The processing assembly includes a first rotating axis module, a second rotating axis module and a processing spindle. The first rotating axis module and the second rotating axis module are arranged perpendicular to each other and are used to clamp the bar material to be processed and drive the bar material to tilt and / or rotate a predetermined angle. The processing spindle is used to process the bar material; The material pulling assembly is arranged on one side of the processing 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 directions are perpendicular to each other; the first rotating axis module is arranged at the output end of the Y-axis module, the first rotating axis module rotates around the Y-axis axis, and the Y-axis module drives the first rotating axis to move horizontally forward and backward along the Y-axis direction; a right-angle connector is provided at the output end of the first rotating axis module, and the first rotating axis module and the second rotating axis module are respectively arranged on two right-angle sides of the right-angle connector; the second rotating axis module includes a second bar guide sleeve, a direct-drive motor and a pneumatic rotary chuck which are 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 jaw. The material pulling jaw is arranged at the end of the material pulling cylinder. The material pulling jaw is used to clamp the bar material. The material pulling cylinder is used to drive the material pulling jaw to move up and down along the Z-axis direction.

10. A method for continuous feeding 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: placing 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 component 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 material pulling assembly pulls out the bar material in the second rotating shaft module to a predetermined length; Step eight, the processing assembly continues to process the bar material continuously until the entire bar material is processed.

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