Turning device for blank bar for bone replacement part production

Abstract

The invention relates to the technical field of turning devices, and provides a turning device for a blank bar material for bone replacement part production, which comprises a machine tool rack, a machine tool body fixedly mounted on the machine tool rack, a lathe body mounted on the machine tool body, a feeding assembly, a chuck, an upper sliding frame, a turnover clamping assembly, a mounting groove, an auxiliary centering assembly and a feeding rack, the feeding assembly is installed on the lathe body, the chuck is detachably installed at the output end of the lathe body, the upper sliding frame is fixedly installed on the inner top wall of the machine tool rack, the overturning clamping assembly is installed on the upper sliding frame, an installation groove is formed in the lathe body, the auxiliary centering assembly is installed in the installation groove, and the feeding rack is detachably installed at the tail of the machine tool rack. According to the technical scheme, the problems that in the prior art, due to the fact that the clamping position of the blank bar is inconvenient to determine during feeding, the blank bar vibrates in the machining process, and the blank bar is difficult to stably clamp rapidly are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of turning devices, and in particular to a turning device for producing blank rods for bone replacement parts. Background Art

[0002] Bone replacements refer to medical devices used to replace damaged or missing bone parts. These replacements are usually made of biocompatible materials such as metal, ceramic or polymer, and are designed to restore the function and structural integrity of bones. Among them, metal bone replacements are widely used. This type of implant has high wear resistance, can reduce inflammation and bone loss, and is suitable for patients who need to use it for a long time. Its advantage is that it can use a larger metal head component, provide a greater range of joint motion and stability, and reduce the risk of postoperative dislocation.

[0003] When producing bone replacement parts, the blank needs to be cut first. The blank is usually a bar or a casting. Turning is a processing method for removing metal from the workpiece. It is suitable for processing cylindrical or rotating parts. On the lathe, the workpiece rotates while the tool cuts into the workpiece or turns along the workpiece. After cutting is completed, the blank is milled and ground to form the bone replacement part. It is then surface treated to improve the biocompatibility and corrosion resistance of the metal bone replacement, and to ensure that the structure and size of the bone replacement are qualified. Before finally leaving the factory, the metal bone replacement part needs to be thoroughly sterilized to ensure its sterility, and then packaged in a sterile environment.

[0004] When placing the blank bar into the clamping position of the turning device, if the center is not aligned, the blank bar will be offset during the processing, causing the free end of the blank bar to vibrate during the processing, resulting in additional stress during the cutting process, which will deteriorate the surface quality, increase the scrap rate and shorten the tool life. Since the material hardness of bone replacement parts is relatively high and the processing accuracy requirements are high, this can easily lead to the size and shape of the processed product not meeting the design requirements. Summary of the Invention

[0005] The present invention proposes a turning device for blank bars for producing bone replacement parts, which solves the problem in the prior art that it is inconvenient to determine the clamping position of the blank bar during loading, resulting in vibration of the blank bar during processing and difficulty in quickly and stably clamping the blank bar.

[0006] The technical solutions of the present invention are as follows: A turning device for producing blank bars for bone replacement parts comprises a machine tool frame, a bed fixedly mounted on the machine tool frame, a lathe body mounted on the bed, and further comprising: A feeding assembly is mounted on the bed and is used to control a turning tool to turn a blank bar; a chuck, the chuck being detachably mounted on an output end of the lathe body; An upper sliding frame, the upper sliding frame being fixedly mounted on the inner top wall of the machine tool frame and being located above the bed; A flip clamping assembly, mounted on the upper slide frame and used for clamping a blank bar to be turned; A mounting groove, the mounting groove is provided on the bed; An auxiliary centering component, which is installed inside the installation groove and is used to center the clamping position of the blank bar; A loading rack, which is detachably mounted on the tail of the machine tool frame; An automatic loading assembly is installed inside the loading frame and is used to sequentially deliver a plurality of blank bars to the working position of the flip clamping assembly.

[0007] On the basis of the above scheme, the feeding assembly includes a longitudinal feeding device, the longitudinal feeding device is installed on one side of the bed, a slide box is slidably installed on the bed, the slide box is adapted to the longitudinal feeding device, a transverse feeding device is installed on the slide box, and a tool holder is installed on the transverse feeding device, and further includes: A mounting frame, the mounting frame is fixedly mounted on the slide box, and the mounting frame is symmetrically arranged with the tool holder; A positioning portion, the positioning portion being mounted on the mounting frame, The contact portion is mounted on the positioning portion and is used to assist in cutting. The positioning portion is used to control the position of the contact portion.

[0008] On the basis of the above solution, the positioning portion includes: A sliding frame, the sliding frame being slidably mounted on the mounting frame; Positioning nuts, a plurality of said positioning nuts are detachably mounted on the top of the sliding frame; a first electric cylinder, the first electric cylinder being fixedly mounted on the sliding frame; A positioning cylinder is fixedly mounted on the output end of the first electric cylinder.

[0009] On the basis of the above solution, the contact portion includes: a sliding cylinder, the sliding cylinder being slidably mounted inside the positioning cylinder; A spring is fixedly installed inside the positioning cylinder and is fixedly connected to the sliding cylinder; A sensor, the sensor being fixedly mounted inside the positioning cylinder; Contact balls: two contact balls are detachably and rotatably mounted on one end of the sliding cylinder close to the tool holder, and the two contact balls are symmetrically arranged.

[0010] On the basis of the above solution, the flip clamping assembly includes: A movable frame, the movable frame being slidably mounted on the bottom of the upper sliding frame; A clamping frame, the clamping frame being slidably mounted inside the movable frame; The second electric cylinder is fixedly mounted on the inner top wall of the mobile frame, and the output end of the second electric cylinder is fixedly connected to the clamping frame A clamping portion, mounted on the clamping frame and used for clamping a blank bar; The moving part is installed inside the upper sliding frame and is used to drive the moving frame to move.

[0011] On the basis of the above solution, the clamping portion includes: A third electric cylinder, two of which are symmetrically and fixedly mounted inside the clamping frame; A pushing frame, the pushing frame is fixedly installed between the output ends of the two third electric cylinders; A connecting frame, the connecting frame being rotatably mounted on the clamping frame; A guide frame, wherein the guide frame is slidably mounted on the pushing frame and fixedly mounted on the inner bottom wall of the clamping frame; Spiral chutes, two of which are symmetrically provided on the connecting frame; Slide blocks, two of which are fixedly mounted inside the push frame, and the slide blocks are slidably engaged with the spiral chute; The clamping claw is fixedly mounted on the bottom of the connecting frame.

[0012] On the basis of the above solution, the moving part includes: a transmission screw, the transmission screw being rotatably mounted inside the upper sliding frame; a motor, wherein the motor is fixedly mounted on the upper sliding frame, and an output end of the motor is fixedly connected to the transmission screw; A threaded block is threadedly sleeved on the transmission screw and is fixedly connected to the movable frame.

[0013] Based on the above solution, the auxiliary centering component includes: A first-stage electric cylinder, two of which are symmetrically installed inside the mounting groove; A centering frame, the centering frame being slidably mounted inside the mounting groove and fixedly connected to the output end of the first-stage electric cylinder; A secondary electric cylinder, the secondary electric cylinder being fixedly mounted inside the centering frame; An assembly rack, to which the output end of the secondary electric cylinder is fixedly mounted; Support rollers: two support rollers are symmetrically and rotatably mounted on the assembly frame.

[0014] On the basis of the above solution, the automatic feeding assembly includes a conveyor, which is installed at the feeding position of the feeding rack and further includes: A material pushing box body is fixedly mounted on the top of the loading frame; A feeding box body, a plurality of the feeding boxes are fixedly installed on the feeding frame at equal distances, and the plurality of the feeding boxes and the pushing box body are arranged in a stepped shape.

[0015] In addition to the above solutions, it also includes: A feeding electric cylinder is fixedly installed inside each of the feeding boxes and the pushing boxes; A material pushing rack is fixedly mounted on the output end of the loading electric cylinder in the material pushing box; A feeding inclined plate, wherein the output end of the feeding electric cylinder in each feeding box is fixedly mounted with the feeding inclined plate; Electric push rods, two of which are symmetrically and fixedly installed on the top of the loading frame.

[0016] The working principle and beneficial effects of the present invention are: 1. In the present invention, after the sliding cylinder drives the contact ball to contact the outer circumference of the blank bar, the spring will deform. When the inner wall of the sliding cylinder contacts the contact of the sensor, the sensor is triggered and the first electric cylinder can be closed. Therefore, the blank bar will not shake during the turning process, thereby improving the surface quality of the finished product. In addition, as the blank bar rotates, the contact ball also rotates, and the longitudinal feed of the slide box is not affected.

[0017] 2. In the present invention, when it is necessary to process the other end face of the workpiece, the clamping frame is moved to the clamping position again, the clamping claw is started to clamp the workpiece, the chuck is released, and the third electric cylinder is started. The third electric cylinder pushes the pushing frame to move, and the pushing frame drives the slider to move. Under the action of the guide frame, the pushing frame moves along the axial direction of the guide frame. At this time, under the action of the slider, through the cooperation of the slider and the spiral slide groove, the connecting frame is rotated 180° to realize the flipping of the workpiece. Then the workpiece is put back into the clamping position of the chuck, the workpiece is fixed, and the turning operation can be continued, which facilitates the turning of the workpiece and improves the turning accuracy and efficiency.

[0018] 3. In the present invention, the secondary electric cylinder drives the assembly frame to move, and the position of the support roller is calculated according to the size of the blank bar. After the secondary electric cylinder drives the assembly frame to move the support roller to the specified position, the secondary electric cylinder can be closed and locked. When the clamp drives the blank bar to move downward until the blank bar contacts the support roller, the position of the blank bar can be determined. Then the primary and secondary electric cylinders are retracted, and the blank bar is moved into the chuck through the clamp to fix the blank bar, thereby ensuring the accuracy of clamping the blank bar and reducing the occurrence of errors in processing dimensions due to unstable clamping. 4. In the present invention, through the cooperation of the flip clamping assembly and the automatic loading assembly, not only the speed of clamping the blank bar is improved, but also the processing efficiency is improved. At the same time, with the cooperation of the feeding assembly, when the protruding part of the blank bar is too long or the diameter of the processed finished product is too small, the possibility of shaking of the blank bar during processing is reduced, the turning accuracy is improved, and the turning efficiency is improved. Through the setting of the auxiliary centering assembly, the accuracy of clamping the blank bar is improved, the occurrence of shaking during turning is reduced, and the surface quality of the finished product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the feeding assembly in the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the cooperation between the positioning portion and the contact portion in the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the contact portion of the present invention; Figure 5 It is a cross-sectional structural diagram of the cooperation between the flip clamping assembly and the moving part in the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the flip clamping assembly in the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the clamping portion of the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the cooperation between the push frame and the slider in the present invention; Figure 9 This is a schematic diagram of the structure of the connection frame and the spiral chute in the present invention; Figure 10 Schematic diagram of the cross-sectional structure of the auxiliary centering component in the present invention; Figure 11 Schematic diagram of the cross-sectional structure of the automatic feeding assembly of the present invention; Figure 12 It is a schematic cross-sectional structural diagram of the coordination of the feeding inclined plate and the baffle in the present invention.

[0021] In the figure: 1. Machine tool frame; 2. Lathe bed; 3. Lathe body; 4. Chuck; 5. Upper slide frame; 6. Mounting slot; 7. Loading frame; 8. Longitudinal feed device; 9. Slide box; 10. Transverse feed device; 11. Tool holder; 12. Mounting frame; 13. Slide frame; 14. Positioning nut; 15. First electric cylinder; 16. Positioning cylinder; 17. Slide cylinder; 18. Spring; 19. Sensor; 20. Contact ball; 21. Moving frame; 22. Clamping frame; 23. Second electric cylinder; 24. The third electric cylinder; 25. Pushing frame; 26. Connecting frame; 27. Guide frame; 28. Spiral slide; 29. Slider; 30. Clamping claw; 31. Drive screw; 32. Motor; 33. Threaded block; 34. First-stage electric cylinder; 35. Centering frame; 36. Second-stage electric cylinder; 37. Assembly frame; 38. Support roller; 39. Conveyor; 40. Pushing box; 41. Loading box; 42. Loading electric cylinder; 43. Pushing frame; 44. Loading inclined plate; 45. Electric push rod; 46. Baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 12As shown, this embodiment proposes a turning device for blank rods for the production of bone replacement parts, including a machine tool frame 1, a bed 2 is fixedly mounted on the machine tool frame 1, a lathe body 3 is mounted on the bed 2, and further includes a feed assembly, a chuck 4, an upper slide 5, a flip clamping assembly, a mounting groove 6, an auxiliary centering assembly, a loading frame 7 and an automatic loading assembly. The feed assembly is mounted on the bed 2 and is used to control the turning tool to turn the blank rod. The feed assembly includes a longitudinal feeding device 8, and the longitudinal feeding device 8 is installed on the bed 2. It is installed on one side of the bed 2, and a slide box 9 is slidably installed on the bed 2. The slide box 9 is adapted to the longitudinal feeding device 8. A transverse feeding device 10 is installed on the slide box 9. A tool holder 11 is installed on the transverse feeding device 10. It also includes a mounting frame 12, a positioning part and a contact part. The mounting frame 12 is fixedly installed on the slide box 9. The mounting frame 12 and the tool holder 11 are arranged symmetrically. The positioning part is installed on the mounting frame 12, and the contact part is installed on the positioning part for assisting cutting. The positioning part is used to control the position of the contact part.

[0024] Specifically, when turning the blank bar, the bar is first placed on the automatic loading assembly of the loading rack 7 in sequence, the automatic loading assembly is turned on, and the bar is transported to the upper part of the loading rack 7. At this time, the flip clamping assembly is located at the tail end of the upper sliding rack 5. At this time, the flip clamping assembly is just above the blank bar on the upper part of the loading rack 7. At this time, the flip clamping assembly is started to clamp the blank bar and move the blank bar to the position of the chuck 4. At this time, the auxiliary centering assembly is started, and the height of the auxiliary centering assembly is set according to the size of the blank bar to be processed to determine the stability of the centering, and then with the cooperation of the auxiliary centering assembly , feed the blank bar into the working position of the chuck 4, and start the chuck 4 to clamp the blank bar. Then, through the setting of the lathe body 3, control the chuck 4 to rotate, and then install the turning tool on the tool holder 11. Through the cooperation of the lateral feed device 10, the axial feed device and the slide box 9, the blank bar can be turned by the turning tool. Through the cooperation of the positioning part and the contact part, when the protruding part of the blank bar is too long or the diameter of the processed finished product is too small, the possibility of shaking of the blank bar during processing is reduced, and the turning accuracy is improved. After turning, the processed finished product can be taken out.

[0025] When the other end face of the blank bar needs to be processed, the workpiece is flipped over by setting the flip clamping assembly, and the other side can be processed. After processing, in order to improve the biocompatibility and corrosion resistance of the bone replacement part, it is usually required to undergo surface treatment, mainly including electroplating, anodizing, sandblasting and other processes. The size, strength, stability and other indicators of the aggregate are then tested to ensure that the product meets the relevant standards and requirements, and it is thoroughly disinfected before it is finally shipped to ensure its sterility and can be stored.

[0026] The above, such as Figure 3 As shown, the positioning part includes a sliding frame 13, a positioning nut 14, a first electric cylinder 15 and a positioning tube 16. The sliding frame 13 is slidably installed on the mounting frame 12. A plurality of positioning nuts 14 are detachably installed on the top of the sliding frame 13. The first electric cylinder 15 is fixedly installed on the sliding frame 13, and the positioning tube 16 is fixedly installed on the output end of the first electric cylinder 15.

[0027] Specifically, in order to reduce the possibility of the blank bar material shaking during the cutting process, it is necessary to adjust the position of the sliding frame 13 and control the sliding frame 13 to slide on the mounting frame 12. When the required position is reached, the sliding frame 13 can be fixed by setting the positioning nut 14, and then the first electric cylinder 15 is started to push the positioning cylinder 16 to move until the positioning cylinder 16 pushes the contact part to contact the blank bar material. This can reduce the shaking of the blank bar material caused by the action of the turning tool during the turning process, thereby improving the efficiency and accuracy of turning.

[0028] The above, such as Figure 4 As shown, the contact part includes a sliding cylinder 17, a spring 18, a sensor 19 and a contact ball 20. The sliding cylinder 17 is slidably installed inside the positioning cylinder 16. The spring 18 is fixedly installed inside the positioning cylinder 16. The spring 18 is fixedly connected to the sliding cylinder 17. The sensor 19 is fixedly installed inside the positioning cylinder 16. The sliding cylinder 17 has two contact balls 20 that are detachable and rotatable installed at one end close to the tool holder 11. The two contact balls 20 are symmetrically arranged.

[0029] Specifically, the positioning cylinder 16 drives the sliding cylinder 17 to move. When the sliding cylinder 17 drives the contact ball 20 to contact the outer circular part of the blank bar, the spring 18 will be deformed at this time. When the inner wall of the sliding cylinder 17 contacts the contact of the sensor 19, the sensor 19 is triggered. A signal transmitter is provided on the sensor 19, and a matching signal receiver is provided on the first electric cylinder 15. When the sensor 19 is triggered, a signal is transmitted to the first electric cylinder 15, and the first electric cylinder 15 can be closed, thereby ensuring that the blank bar will not shake during the turning process, and the contact ball 20 also rotates as the blank bar rotates, and at the same time does not affect the longitudinal feed of the slide box 9.

[0030] like Figures 5 to 9As shown, the chuck 4 is detachably mounted on the output end of the lathe body 3, the upper sliding frame 5 is fixedly mounted on the inner top wall of the machine tool frame 1, the upper sliding frame 5 is located above the bed 2, and the flip clamping assembly is mounted on the upper sliding frame 5 for clamping the blank bar to be turned. The flip clamping assembly includes a moving frame 21, a clamping frame 22, a second electric cylinder 23, a clamping part and a moving part. The moving frame 21 is slidably mounted on the bottom of the upper sliding frame 5, and the clamping frame 22 is slidably mounted inside the moving frame 21. The second electric cylinder 23 is fixedly mounted on the inner top wall of the moving frame 21, and the output end of the second electric cylinder 23 is fixedly connected to the clamping frame 22. The clamping part is mounted on the clamping frame 22 for clamping the blank bar, and the moving part is mounted inside the upper sliding frame 5 for driving the moving frame 21 to move.

[0031] Specifically, during the loading process, the moving frame 21 is first moved to the tail end of the upper sliding frame 5 through the moving part. At this time, the clamping part is just above the top of the loading frame 7, and then the clamping part is moved to the clamping position. At this time, the second electric cylinder 23 is started, and the second electric cylinder 23 pushes the clamping frame 22 to move inside the moving frame 21 until the clamping part is moved to the clamping position. At this time, the clamping part is started to clamp the blank bar, and then the second electric cylinder 23 is retracted, and the clamped blank bar is moved to the position of the chuck 4 through the moving part. After centering, the blank bar is placed in the clamping position of the chuck 4 to fix the blank bar. When the other end face of the workpiece needs to be processed, the workpiece on the chuck 4 is retracted and turned over through the setting of the clamping part, and it can be sent into the chuck 4 again.

[0032] The above, such as Figures 7 to 9 As shown, the clamping part includes a third electric cylinder 24, a pushing frame 25, a connecting frame 26, a guide frame 27, a spiral slide 28, a slider 29 and a clamping claw 30. Two third electric cylinders 24 are symmetrically and fixedly installed inside the clamping frame 22. The pushing frame 25 is fixedly installed between the output ends of the two third electric cylinders 24. The connecting frame 26 is rotatably installed on the clamping frame 22. The guide frame 27 is slidably installed on the pushing frame 25. The guide frame 27 is fixedly installed on the inner bottom wall of the clamping frame 22. Two spiral slides 28 are symmetrically opened on the connecting frame 26. Two sliders 29 are fixedly installed inside the pushing frame 25. The slider 29 slides with the spiral slide 28. The clamping claw 30 is fixedly installed at the bottom of the connecting frame 26.

[0033] Specifically, when clamping the blank bar, after the clamping frame 22 moves to the clamping position, the clamping jaws 30 are in the clamping position. The clamping jaws 30 are started to clamp the blank bar and the blank bar can be moved to the position of the chuck 4. After the chuck 4 fixes the blank bar, the clamping jaws 30 are released and the second electric cylinder 23 is retracted. When the other end face of the workpiece needs to be processed, the clamping frame 22 is moved to the clamping position again, the clamping jaws 30 are started to clamp the workpiece, and the chuck 4 is released. The third electric cylinder 24 is driven, and the third electric cylinder 24 pushes the pushing frame 25 to move, and the pushing frame 25 drives the slider 29 to move. Under the action of the guide frame 27, the pushing frame 25 moves along the axial direction of the guide frame 27. At this time, under the action of the slider 29, through the cooperation of the slider 29 and the spiral slide 28, the connecting frame 26 is rotated 180° to realize the flipping of the workpiece, and then the workpiece is put back into the clamping position of the chuck 4, and the workpiece is fixed, and the turning operation can be continued.

[0034] The above, such as Figure 5 As shown, the moving part includes a transmission screw 31, a motor 32 and a threaded block 33. The transmission screw 31 is rotatably installed inside the upper sliding frame 5, the motor 32 is fixedly installed on the upper sliding frame 5, the output end of the motor 32 is fixedly connected to the transmission screw 31, the threaded block 33 is threadedly mounted on the transmission screw 31, and the threaded block 33 is fixedly connected to the moving frame 21.

[0035] Specifically, when the movable frame 21 needs to be moved, the motor 32 is started, the motor 32 drives the transmission screw 31 to rotate, the transmission screw 31 can drive the threaded block 33 to move, and the threaded block 33 can drive the movable frame 21 to move.

[0036] like Figure 10 As shown, a mounting groove 6 is provided on the bed 2, and an auxiliary centering component is installed inside the mounting groove 6 for centering the clamping position of the blank bar. The auxiliary centering component includes a first-level electric cylinder 34, a centering frame 35, a second-level electric cylinder 36, an assembly frame 37 and a support roller 38. Two first-level electric cylinders 34 are symmetrically installed inside the mounting groove 6, and the centering frame 35 is slidably installed inside the mounting groove 6. The centering frame 35 is fixedly connected to the output end of the first-level electric cylinder 34, and the second-level electric cylinder 36 is fixedly installed inside the centering frame 35. The output end of the second-level electric cylinder 36 is fixedly installed with an assembly frame 37, and two support rollers 38 are symmetrically and rotatably installed on the assembly frame 37.

[0037] Specifically, after the clamping jaws 30 move the blank bar to a position close to the chuck 4, the first-level electric cylinder 34 is started, and the first-level electric cylinder 34 pushes the centering frame 35 to move. When the centering frame 35 is moved to the specified position, the first-level electric cylinder 34 can be closed and locked, and then the second-level electric cylinder 36 is started, and the second-level electric cylinder 36 pushes the assembly frame 37 to move. The position of the support roller 38 is calculated according to the size of the blank bar. After the second-level electric cylinder 36 drives the assembly frame 37 to move the support roller 38 to the specified position, the second-level electric cylinder 36 can be closed and locked. When the clamping jaws 30 drive the blank bar to move downward until the blank bar contacts the support roller 38, the position of the blank bar can be determined, and then the first-level electric cylinder 34 and the second-level electric cylinder 36 are retracted, and the blank bar is moved into the chuck 4 through the clamping jaws 30, and the blank bar can be fixed by the chuck 4.

[0038] like Figure 11 、 Figure 12 As shown, the loading rack 7 is detachably mounted on the tail of the machine tool frame 1, and the automatic loading assembly is mounted inside the loading rack 7. The automatic loading assembly includes a conveyor 39, which is mounted at the feeding position of the loading rack 7, and also includes a push box 40 and a loading box 41. The push box 40 is fixedly mounted on the top of the loading rack 7, and multiple loading boxes 41 are fixedly mounted on the loading rack 7 at equal distances. The multiple loading boxes 41 and the push box 40 are all stepped. The layout also includes a loading electric cylinder 42, a pushing rack 43, a loading inclined plate 44 and an electric push rod 45. A loading electric cylinder 42 is fixedly installed inside each loading box 41 and the pushing box 40. The output end of the loading electric cylinder 42 in the pushing box 40 is fixedly installed with a pushing rack 43. The output end of the loading electric cylinder 42 in each loading box 41 is fixedly installed with a loading inclined plate 44. Two electric push rods 45 are symmetrically and fixedly installed on the top of the loading frame 7.

[0039] Specifically, during the loading process, the blank bar is first placed on the conveyor 39, and the conveyor 39 is started to feed the blank bar into the position of the western loading box 41 until a blank bar is fed into the loading inclined plate 44 at the corresponding position. At this time, the corresponding loading electric cylinder 42 is started to push the blank bar upward through the loading inclined plate 44, and the angle formed by the inclined surface of the loading inclined plate 44 and the outer surface of the adjacent loading box 41 is used to prevent the blank bar from running off until the loading electric cylinder 42 is stopped. The cylinder 42 moves the corresponding blank bar to the next level of loading inclined plate 44 through the loading inclined plate 44, and repeats this step until the blank bar is moved to the pushing rack 43 in the pushing box 40. At this time, start the two electric push rods 45 to push the blank bar to the middle position of the pushing rack 43 for easy clamping, then retract the electric push rods 45, start the loading electric cylinder 42 at the corresponding position, and push the blank bar to the clamped position, and wait until the clamping claws 30 clamp it away.

[0040] It should be added that a baffle 46 is also installed at the lower part of the bottom loading ramp 44. The baffle 46 slides with the loading box 41. When the bottom loading ramp 44 moves a blank bar delivered by the conveyor 39 to the next level, the setting of the baffle 46 can temporarily prevent other blank bars from damaging the loading electric cylinder 42.

[0041] As mentioned above, when turning the blank bar, the bar is first placed on the conveyor 39 in sequence, and the conveyor 39 is started to feed the blank bar into the position of the western loading box 41 until a blank bar is fed into the loading inclined plate 44 at the corresponding position. At this time, the corresponding loading electric cylinder 42 is started to push the blank bar upward through the loading inclined plate 44, and the angle formed by the inclined surface of the loading inclined plate 44 and the outer side surface of the adjacent loading box 41 is avoided. The material deviates until the loading electric cylinder 42 moves the corresponding blank bar to the loading inclined plate 44 of the next level through the loading inclined plate 44, and repeats this step until the blank bar is moved to the pushing rack 43 in the pushing box 40. At this time, start the two electric push rods 45 to push the blank bar to the middle position of the pushing rack 43 for easy clamping, and then retract the electric push rod 45, start the loading electric cylinder 42 at the corresponding position, and push the blank bar to the clamped position.

[0042] At this time, the moving frame 21 is located at the tail end of the upper sliding frame 5. At this time, the second electric cylinder 23 is started. The second electric cylinder 23 pushes the clamping frame 22 to move inside the moving frame 21 until the clamping frame 22 is moved to the clamping position. At this time, the clamping claw 30 is in the clamping position. The clamping claw 30 is started to clamp the blank bar. At this time, the motor 32 is started. The motor 32 drives the transmission screw 31 to rotate. The transmission screw 31 can drive the threaded block 33 to move. The threaded block 33 can drive the moving frame 21 to move until the blank bar is moved to the position of the chuck 4. The motor 32 can be fixed. At this time, the second electric cylinder 23 is started. When the clamping claw 30 moves the blank bar to a position close to the chuck 4, the first electric cylinder 34 is started. , the first-level electric cylinder 34 pushes the centering frame 35 to move. When the centering frame 35 is moved to the specified position, the first-level electric cylinder 34 can be closed and locked, and then the second-level electric cylinder 36 is started. The second-level electric cylinder 36 pushes the assembly frame 37 to move. The position of the support roller 38 is calculated according to the size of the blank bar. After the second-level electric cylinder 36 drives the assembly frame 37 to move the support roller 38 to the specified position, the second-level electric cylinder 36 can be closed and locked. When the clamping jaws 30 drive the blank bar to move downward until the blank bar contacts the support roller 38, the position of the blank bar can be determined, and then the first-level electric cylinder 34 and the second-level electric cylinder 36 are retracted, and the blank bar is moved into the chuck 4 through the clamping jaws 30, and the blank bar can be fixed by the chuck 4.

[0043] After the chuck 4 fixes the blank bar, the clamping jaws 30 are released and the second electric cylinder 23 is retracted. When the other end face of the workpiece needs to be processed, the clamping frame 22 is moved to the clamping position again, the clamping jaws 30 are started, the workpiece is clamped, and the chuck 4 is released. At this time, the third electric cylinder 24 is started, and the third electric cylinder 24 pushes the pushing frame 25 to move, and the pushing frame 25 drives the slider 29 to move. Under the action of the guide frame 27, the pushing frame 25 moves along the axial direction of the guide frame 27. At this time, under the action of the slider 29, the connecting frame 26 is rotated 180° through the cooperation of the slider 29 and the spiral slide groove 28, the workpiece can be flipped. Then the workpiece is put back into the clamping position of the chuck 4, the workpiece is fixed, and the turning operation can continue.

[0044] When turning operation is required, the chuck 4 is controlled to rotate through the setting of the lathe body 3, and then the turning tool is installed on the tool holder 11. Through the cooperation of the lateral feed device 10, the axial feed device and the slide box 9, the blank bar can be turned by the turning tool. At this time, it is necessary to adjust the position of the sliding frame 13 and control the sliding frame 13 to slide on the mounting frame 12. When the required position is reached, the sliding frame 13 can be fixed by the setting of the positioning nut 14, and then the first electric cylinder 15 is started to push the positioning cylinder 16 to move, and the positioning cylinder 16 drives the sliding cylinder 17 to move. When the sliding cylinder 17 drives the contact ball 20 to contact the outer cylindrical part of the blank bar, the spring 18 at this time will be released. When the inner wall of the sliding cylinder 17 contacts the contact of the sensor 19, the sensor 19 is triggered. A signal transmitter is provided on the sensor 19, and a matching signal receiver is provided on the first electric cylinder 15. When the sensor 19 is triggered, a signal is transmitted to the first electric cylinder 15, and the first electric cylinder 15 can be closed, thereby ensuring that the blank bar will not shake during the turning process, and the contact ball 20 will also rotate as the blank bar rotates, without affecting the longitudinal feed of the slide box 9. During the turning process, the shaking of the blank bar caused by the action of the turning tool can be reduced, thereby improving the turning efficiency and accuracy. After the turning is completed, the processed finished product can be taken out.

[0045] After processing, in order to improve the biocompatibility and corrosion resistance of bone replacement parts, they usually need to be surface treated, mainly including electroplating, anodizing, sandblasting and other processes. Then, the size, strength, stability and other indicators of the aggregate are tested to ensure that the product meets the relevant standards and requirements. Before the final shipment, it is thoroughly disinfected to ensure its sterility and can be stored.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turning device for producing blank rods for bone replacement parts, comprising a machine tool frame (1), a bed (2) fixedly mounted on the machine tool frame (1), a lathe body (3) mounted on the bed (2), and characterized in that: Also includes: A feed assembly, the feed assembly being mounted on the bed (2) and being used to control a turning tool to turn a blank bar; a chuck (4), the chuck (4) being detachably mounted on the output end of the lathe body (3); An upper sliding frame (5), the upper sliding frame (5) is fixedly mounted on the inner top wall of the machine tool frame (1), and the upper sliding frame (5) is located above the bed (2); A flip clamping assembly, the flip clamping assembly being mounted on the upper slide (5) and used for clamping a blank bar to be turned; A mounting groove (6), wherein the bed (2) is provided with the mounting groove (6); An auxiliary centering component, the auxiliary centering component is installed inside the installation groove (6) and is used to center the clamping position of the blank bar; A loading frame (7), the loading frame (7) being detachably mounted on the tail of the machine tool frame (1); An automatic loading assembly is installed inside the loading frame (7) and is used to sequentially deliver a plurality of blank bars to the working position of the flip clamping assembly.

2. A turning device for a blank bar material for producing a bone replacement part according to claim 1, wherein the feeding assembly comprises a longitudinal feeding device (8), the longitudinal feeding device (8) is installed on one side of the bed (2), a slide box (9) is slidably installed on the bed (2), the slide box (9) is adapted to the longitudinal feeding device (8), a transverse feeding device (10) is installed on the slide box (9), and a tool holder (11) is installed on the transverse feeding device (10), characterized in that, Also includes: A mounting frame (12), the mounting frame (12) being fixedly mounted on the slide box (9), the mounting frame (12) being symmetrically arranged with the tool holder (11); A positioning portion, the positioning portion being mounted on the mounting frame (12), The contact portion is mounted on the positioning portion and is used to assist in cutting. The positioning portion is used to control the position of the contact portion.

3. A turning device for a blank bar material for producing a bone replacement according to claim 2, characterized in that: The positioning portion includes: A sliding frame (13), wherein the sliding frame (13) is slidably mounted on the mounting frame (12); Positioning nuts (14), a plurality of positioning nuts (14) are detachably mounted on the top of the sliding frame (13); a first electric cylinder (15), the first electric cylinder (15) being fixedly mounted on the sliding frame (13); A positioning cylinder (16) is fixedly mounted on the output end of the first electric cylinder (15).

4. A turning device for producing blank bars for bone replacement parts according to claim 3, characterized in that: The contact portion includes: A sliding cylinder (17), wherein the sliding cylinder (17) is slidably mounted inside the positioning cylinder (16); A spring (18), wherein the spring (18) is fixedly installed inside the positioning cylinder (16), and the spring (18) is fixedly connected to the sliding cylinder (17); A sensor (19), wherein the sensor (19) is fixedly mounted inside the positioning cylinder (16); Contact balls (20), two contact balls (20) are detachably and rotatably mounted on one end of the sliding cylinder (17) close to the tool holder (11), and the two contact balls (20) are symmetrically arranged.

5. A turning device for a blank bar material for producing a bone replacement according to claim 4, characterized in that: The flip clamping assembly comprises: A movable frame (21), the movable frame (21) being slidably mounted on the bottom of the upper sliding frame (5); A clamping frame (22), the clamping frame (22) being slidably mounted inside the movable frame (21); A second electric cylinder (23) is fixedly mounted on the inner top wall of the movable frame (21), and an output end of the second electric cylinder (23) is fixedly connected to the clamping frame (22). A clamping portion, the clamping portion being mounted on the clamping frame (22) and being used for clamping a blank bar; A moving part is installed inside the upper sliding frame (5) and is used to drive the moving frame (21) to move.

6. A turning device for a blank bar material for producing a bone replacement according to claim 5, characterized in that: The clamping portion comprises: A third electric cylinder (24), two of which are symmetrically and fixedly mounted inside the clamping frame (22); A pushing frame (25), the pushing frame (25) being fixedly mounted between the output ends of the two third electric cylinders (24); a connecting frame (26), the connecting frame (26) being rotatably mounted on the clamping frame (22); A guide frame (27), wherein the guide frame (27) is slidably mounted on the pushing frame (25), and the guide frame (27) is fixedly mounted on the inner bottom wall of the clamping frame (22); A spiral chute (28), wherein two spiral chute (28) are symmetrically provided on the connecting frame (26); Slide blocks (29), two of the slide blocks (29) are fixedly installed inside the pushing frame (25), and the slide blocks (29) are slidably matched with the spiral slide groove (28); A clamping claw (30) is fixedly mounted on the bottom of the connecting frame (26).

7. A turning device for a blank bar material for producing a bone replacement according to claim 6, characterized in that: The moving part includes: A transmission screw (31), the transmission screw (31) being rotatably mounted inside the upper sliding frame (5); A motor (32), wherein the motor (32) is fixedly mounted on the upper sliding frame (5), and an output end of the motor (32) is fixedly connected to the transmission screw (31); A threaded block (33) is threadedly mounted on the transmission screw (31), and the threaded block (33) is fixedly connected to the movable frame (21).

8. A turning device for a blank bar material for producing a bone replacement according to claim 7, characterized in that: The auxiliary centering component includes: A first-stage electric cylinder (34), two of which are symmetrically mounted inside the mounting groove (6); A centering frame (35), the centering frame (35) being slidably mounted inside the mounting groove (6), and the centering frame (35) being fixedly connected to the output end of the first-stage electric cylinder (34); A secondary electric cylinder (36), the secondary electric cylinder (36) being fixedly mounted inside the centering frame (35); An assembly rack (37), the output end of the secondary electric cylinder (36) is fixedly mounted with the assembly rack (37); Support rollers (38), two support rollers (38) are symmetrically and rotatably mounted on the assembly frame (37).

9. A turning device for blank bars for producing bone replacement parts according to claim 8, wherein the automatic loading assembly comprises a conveyor (39), the conveyor (39) being installed at the feeding position of the loading frame (7), characterized in that: Also includes: A material pushing box (40), the material pushing box (40) is fixedly mounted on the top of the loading frame (7); A feeding box (41) is provided, and a plurality of the feeding boxes (41) are fixedly installed at equal distances on the feeding frame (7). The plurality of feeding boxes (41) and the pushing box (40) are arranged in a stepped manner.

10. A turning device for a blank bar material for producing a bone replacement according to claim 9, characterized in that: Also includes: A feeding electric cylinder (42), wherein each of the feeding box (41) and the pushing box (40) is fixedly installed with the feeding electric cylinder (42); A material pushing rack (43), the material pushing rack (43) is fixedly mounted on the output end of the loading electric cylinder (42) in the material pushing box (40); A feeding inclined plate (44), the feeding inclined plate (44) is fixedly mounted on the output end of the feeding electric cylinder (42) in each feeding box (41); Electric push rods (45), two of the electric push rods (45) are symmetrically and fixedly mounted on the top of the loading frame (7).

Images