CN113995491B

CN113995491B - Processing technology of proximal femur fracture plate

Info

Publication number: CN113995491B
Application number: CN202111192039.4A
Authority: CN
Inventors: 叶树; 居志杰; 李若诚; 严迪恒; 甄伍凡; 王志洪
Original assignee: Changzhou Dazon Medical Devices Co ltd
Current assignee: Changzhou Dazon Medical Devices Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2023-01-06
Anticipated expiration: 2041-10-13
Also published as: CN113995491A

Abstract

The utility model relates to a coaptation board and processing frock and technology thereof belongs to medical instrument's field, and the coaptation board includes mainboard, buckling board and hook plate in proper order, and the relative terminal surface that the mainboard is located its thickness direction is operation face and contact surface respectively, and the relative side that the mainboard is located its width direction is threading face, has seted up a plurality of through wires holes on the mainboard, and the through wires hole is seted up to one of them by the operation face on the threading face. This application sets up through the slant of through wires hole, has reduced to carry out the through wires hole and has added the brill sword feed depth man-hour, has reduced the drilling depth from this great and the brill sword vibration range that causes, has improved the state stability of brill sword at the during operation, has the effect that reduces the brill sword vibration and damage, improvement through wires hole shaping quality.

Description

Processing technology of proximal femur fracture plate

Technical Field

The application relates to the field of medical equipment, in particular to a processing technology of a proximal femur fracture plate.

Background

In the medical industry, the fixation of a bone portion with a bone plate is a common treatment method in fracture surgery, and the bone plate is usually used in combination with bone screws, bone cables and the like. During treatment, the bone screws and the bone connecting cables fix the bone plate and the bone mutually so as to connect and correct the fractured bone, so that the structure of the bone plate needs to correspond to the shape of the fractured bone so as to improve the joint degree of the bone plate and the fractured bone.

The structure of the proximal femur of a human body is shown in fig. 1, and the proximal femur is the end of the femoral shaft 2 close to the pelvis, and the end is provided with a greater trochanter 22, a femoral head 21 and the like. The proximal femur bone fracture plate is used as a special bone fracture plate for bone fracture correction treatment, and comprises a mainboard 1, the mainboard 1 is attached to one side of a femur body 2, one end of the mainboard 1 is provided with an arc-shaped structure matched with a femur greater trochanter 22, the part is a buckling plate 12, a hook plate 121 is formed at one end of the buckling plate 12 far away from the mainboard 1, when the bone fracture plate is matched with the proximal femur, one recessed side of the buckling plate 12 is attached to the outer side of the greater trochanter 22, the hook plate 121 is hung on a rotor pit 23 between the greater trochanter 22 and a femur head 21, so that the overall attaching degree of the bone fracture plate and the femur is improved, and meanwhile, the effect of improving the firmness degree of the bone fracture plate and the femur under the fixed state is achieved.

The bone fracture plate is provided with a threading hole 13 matched with the bone fracture cable 3 made of titanium alloy material through a drill, the threading hole 13 is usually arranged in the width direction of the through bone fracture plate at present, and the bone fracture cable 3 penetrates through the bone fracture plate through the threading hole 13 and then is bound with the fractured bone, so that the relative connection and fixation of the bone fracture cable and the bone fracture cable are realized.

With respect to the related art among the above, the inventors consider that there are the following drawbacks: when the bone fracture plate is drilled with the threading holes, the feeding stroke of the drill bit needs to be at least larger than the width of the bone fracture plate due to the fact that the threading holes penetrate through the width of the bone fracture plate, the vibration condition generated when the drill bit operates is more serious along with the increase of the feeding amount of the drill bit, the thickness of the bone fracture plate is smaller, and the cutter and the plate are easily damaged greatly due to the larger feeding stroke of the drill bit.

Disclosure of Invention

In order to improve the problem that the drilling cutter and panel all easily receive the damage when processing the through wires hole, this application provides a coaptation board, is used for producing frock and technology of coaptation board.

In a first aspect, the present application provides a bone plate, which adopts the following technical scheme:

the bone fracture plate comprises a main plate, wherein opposite end faces of the main plate in the thickness direction are an operation face and a contact face respectively, opposite side faces of the main plate in the width direction are threading faces, a plurality of threading holes are formed in the main plate, and the threading holes are formed in the threading faces from the operation face to one of the threading faces.

Through adopting above-mentioned technical scheme, the through wires hole intercommunication operation face and threading face, because the operation face and the threading face of mainboard meet, the event runs through the through wires hole of these two sides and possesses the basis of less axial length, under the less condition of through wires hole length, the feeding degree of depth of boring a knife is also less when carrying out drilling to the through wires hole with man-hour, reduced the drilling degree of depth great promptly and arouse the possibility of boring a knife violent vibration, the state stability of boring a knife at the during operation has been improved, the damage degree that the tool bit of boring a knife and the panel that is processed received is reduced, the shaping quality of through wires hole has also been improved.

Preferably, the threading face includes a first threading face and a second threading face, orifices of threading holes are formed in the first threading face and the second threading face, a connecting groove is formed in one side, located on the operation face, of the mainboard, one end of the connecting groove is communicated with the orifice of the threading hole extending from the first threading face to the operation face, and the other end of the connecting groove is communicated with the orifice of the threading hole extending from the second threading face to the operation face.

Through adopting above-mentioned technical scheme, when wearing to establish the coaptation cable, the part that the coaptation cable is located mainboard operation face one side can be placed in the spread groove, and the spread groove plays certain limiting displacement to the coaptation cable that is located it, improves the position stability of coaptation cable in the art and postoperative. Meanwhile, when the plate is used for machining the connecting groove and the threading hole, the connecting groove is machined firstly, then the threading hole is machined, then at the initial point of drilling, the end groove wall of the connecting groove can provide a stable force application point for a tool bit of the drill, and the smoothness degree of the drilling process and the directional stability of the drill during feeding are improved.

Preferably, the groove bottom of the connecting groove and the hole wall of the threading hole are in transition through a round angle.

Through adopting above-mentioned technical scheme, the tank bottom of spread groove and the edges and corners structure between the through wires hole pore wall are replaced by the fillet, and the fillet structure is little to the degree of wear that lies in its coaptation cable to reduced the damage that the coaptation cable received, improved the life of coaptation cable.

Preferably, a buckling plate is arranged at one end of the main plate, and a hook plate is arranged at one end, far away from the main plate, of the buckling plate.

Through adopting above-mentioned technical scheme, lock board and hook plate correspond the trochanter side and the rotor nest top of laminating thighbone respectively, improve thighbone near-end coaptation board when using with the cooperation degree of thighbone near-end structure, and then improve the effect of fracture treatment.

Preferably, the opposite side surfaces of the buckling plate are provided with auxiliary wing plates, the auxiliary wing plates are used for bone screws to penetrate through, a quick-release edge is fixedly connected between the auxiliary wing plates and the buckling plate, and the thickness of the quick-release edge is smaller than that of the buckling plate.

By adopting the technical scheme, the auxiliary wing plate can be attached to the side surface of the greater rotor, and the bone screws can be selectively driven into the greater rotor from the auxiliary wing plate, so that the fixing firmness degree between the bone fracture plate and the bone is further improved; if the auxiliary wing plate is not needed, the auxiliary wing plate is cut off from the buckling plate along the quick-release edge.

Preferably, the fastening plate is provided with fastening holes, and the fastening holes penetrate through the thickness of the fastening plate.

By adopting the technical scheme, the femoral greater trochanter is in an irregular convex shape, and the buckling holes reserved on the buckling plates have a yield effect on partial irregular convex structures on the surface of the greater trochanter, so that the overall bonding stability of the buckling plates to the greater trochanter is improved; meanwhile, the bone structure of the greater trochanter of the femur can be observed from the outside through the buckling hole, so that the healing condition of the bone tissue at the position can be conveniently known in the follow-up process.

The second aspect, this application provides a processing frock for above-mentioned coaptation board, adopts following technical scheme:

the utility model provides a processing frock for above-mentioned coaptation board, is including the mould of bending and milling drill mechanism, the mould of bending is used for bending and shaping buckling plate and hook plate above-mentioned mainboard, milling drill mechanism is used for milling to bore processing and shaping through wires hole and spread groove to the mainboard, milling drill mechanism includes the processing platform, the processing bench is offered and is used for placing the standing groove of mainboard, the processing bench is offered a plurality of and is stepped down the breach of standing groove intercommunication, the distributed position of the breach of stepping down corresponds the setting with the through wires hole.

By adopting the technical scheme, the original plate is bent by the bending die to form the buckling plate and the hook plate, and then the plate is placed on the processing table to form the threading hole and the connecting groove on the main plate; when drilling, because the orifice at one end of the threading hole is positioned on the threading surface, the existence of the abdicating notch can provide a space condition for the cutter head of the drill to smoothly pass through the threading surface without damaging the processing table.

Preferably, a clamp assembly is arranged on the processing table, the clamp assembly comprises an installation rod and a clamping block, the clamping block is detachably installed on the processing table, a clamping portion is connected to the side wall of the clamping block, and the clamping portion is in contact with the operation surface of the main board.

Through adopting above-mentioned technical scheme, when screens portion contact the operating surface of mainboard, the mainboard is just by the centre gripping in the standing groove to this realizes that coaptation board self is fixed on the processing platform.

Preferably, the fixture block is fixedly connected with an installation rod, and the installation rod is in threaded connection with the processing table; the fixture block is fixedly connected with a limiting portion, a limiting flange is arranged on the machining table, when the fixture block rotates to the limiting portion and is abutted against the limiting flange, the clamping portion is in contact with the operating surface of the main board, and the orthographic projection of the clamping portion in the height direction of the machining table does not fall into the abdicating notch.

Through adopting above-mentioned technical scheme, rotatory fixture block, screens portion is close to the mainboard and removes under the guide of screw thread, when spacing flange of spacing portion butt, the fixture block can't rotate, at this moment, screens portion contacts with the operating surface of mainboard, it is fixed to the centre gripping of being processed the work piece to realize the anchor clamps subassembly, reduce because of personnel continue rotatory fixture block and cause the possibility of damage to the mainboard face, and the position of screens portion this moment has also avoided the drilling to add the route of boring cutter in man-hour to can make the course of working of boring cutter go on smoothly.

In a third aspect, the application provides a processing technology of the bone fracture plate, which adopts the following technical scheme:

the processing technology of the bone fracture plate comprises the following steps:

s1: bending the plate raw material by using a bending die to form a light panel, wherein the light panel comprises a main board, a buckling board and a hook board;

s2: placing the light panel in the S1 in a placing groove;

s3: and processing a connecting groove and a threading hole in the optical panel arranged in the placing groove in the S2.

By adopting the technical scheme, the plate is bent firstly, then the plate is subjected to hole-groove processing, namely the shape and the bending angle of the plate before the hole-groove processing are finished, and the process parameters such as the path, the section shape and the like of the threading hole and the connecting groove do not have great changes until the bone fracture plate is put into use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the threading hole is communicated with the operation surface and the threading surface, and the operation surface of the main board is connected with the threading surface, so that the threading hole penetrating through the two surfaces can have smaller axial length, thereby reducing the feeding depth of the drill when the threading hole is drilled and machined, reducing the violent vibration of the drill caused by larger drilling depth, improving the stability of the drill in working state, and reducing the abrasion degree of a tool bit and a plate and the forming quality of the threading hole;

2. through the setting of supplementary pterygoid lamina and quick-release limit, when the bone fracture board cooperation thighbone near-end was used, the bone screw that wears to establish on the supplementary pterygoid lamina can be followed the big rotor side slant and penetrated the skeleton, has further improved the connection fastening degree between bone fracture board and the thighbone, if do not need supplementary pterygoid lamina according to operation condition judgement, cut supplementary pterygoid lamina along the quick-release limit and can realize the quick dismantlement of supplementary pterygoid lamina.

Drawings

Fig. 1 is a schematic structural diagram for showing a matching relationship between a proximal femur bone plate and a femur in the related art.

Fig. 2 is a schematic structural view of one side of the operation surface of the bone plate in the embodiment of the application.

Fig. 3 is a schematic view of a structure for embodying one side of a contact surface of a bone plate in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a first mold frame for embodying a bending mold in the embodiment of the present application.

Fig. 5 is a schematic structural diagram of a second mold frame for embodying a bending mold in the embodiment of the present application.

Fig. 6 is a schematic structural diagram of a second mold frame for embodying a bending mold in the embodiment of the present application in an open state.

Fig. 7 is a schematic structural diagram for embodying the drilling and washing mechanism in the embodiment of the present application.

Fig. 8 is a partially enlarged view of a portion a in fig. 7.

Description of reference numerals: 1. a main board; 11. mounting holes; 12. buckling the plate; 121. a hook plate; 122. an auxiliary wing plate; 123. quickly removing edges; 124. buckling holes; 13. threading holes; 131. connecting grooves; 14. a blank plate; 141. a middle-grade plate; 142. a light panel; 15. positioning a plate; 16. an operation surface; 17. a contact surface; 18. threading surface; 2. a femoral shaft; 21. the femoral head; 22. a large rotor; 23. a rotor bowl; 3. a bone cable; 4. milling and drilling a fixed seat; 41. a processing table; 411. a clamp hole; 412. a yielding groove; 413. limiting and blocking edges; 414. taking and placing the notch; 415. a placement groove; 416. a abdication gap; 42. a clamp assembly; 421. mounting a rod; 422. a clamping block; 423. a clamping part; 424. a limiting part; 5. a first mold frame; 51. a first template; 511. bending the bulge; 52. a first die holder; 521. bending the groove; 53. accommodating a tank; 531. positioning the notch; 6. a second mold frame; 61. a second template; 611. forming a male die; 612. a male module; 62. a second die holder; 621. a base; 622. a placing table; 6221. starting the projection; 623. a guide post; 624. a return spring; 625. a discharge channel; 63. a female module; 631. forming a groove; 632. a transmission groove; 633. closing the mold; 634. and opening the mold.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

In a first aspect, the present application discloses a bone plate, as shown in fig. 2 and 3, which includes a main plate 1, where the main plate 1 is a plate with an overall elongated shape, and a width of one end of the main plate is gradually reduced along a length direction of the main plate, and the end is an implantation end implanted into a portion of a human body to be operated. The main board 1 has four side surfaces, which are respectively an operation surface 16, a contact surface 17 and two threading surfaces 18, and the two threading surfaces 18 are respectively a first threading surface and a second threading surface. When the bone setting operation is performed, the contact surface 17 of the main plate 1 faces the bone and is in direct contact with the bone, and the operation surface 16 is positioned on the side of the main plate 1, which faces away from the bone.

As shown in fig. 2 and 3, the main board 1 is provided with a plurality of threading holes 13 for threading the bone cables 3, and the axes of all the threading holes 13 are inclined relative to the operation surface 16 of the main board 1; every two threading holes 13 are in a group, a single group of threading holes 13 is used for a bone connecting cable 3 to pass through, one threading hole 13 extends to the first threading surface from the operation surface 16, and the other threading hole 13 extends to the second threading surface from the operation surface 16. In this embodiment, the axis of the threading hole 13 forms an included angle of 45 ° with the planes of the threading surface 18 and the operation surface 16.

As shown in fig. 2 and 3, the operation surface 16 of the main board 1 is provided with connecting slots 131, the number of the connecting slots 131 is the same as the number of the groups of the threading holes 13, two ends of each connecting slot 131 are respectively communicated with two orifices of the same group of two threading holes 13 on the operation surface 16, and the slot bottom of the connecting slot 131 and the hole wall of the threading hole 13 are in transition through a fillet; under the state that the bone-knitting cable 3 passes through the main board 1, the part of the bone-knitting cable 3 on one side of the operation surface 16 is positioned in the connecting groove 131, and the connecting groove 131 plays a certain limiting role on the bone-knitting cable 3 positioned in the connecting groove, so that the position stability of the bone-knitting cable 3 after operation and after operation is improved.

As shown in fig. 2 and 3, a plurality of mounting holes 11 are formed in the main board 1 along the length direction thereof, the mounting holes 11 are formed through the thickness of the main board 1, and the mounting holes 11 can be used in cooperation with bone screws. During the operation, whether the bone screw needs to be implanted into the bone can be determined according to bones with different structures and operation schemes.

As shown in fig. 2 and 3, in order to adapt to the proximal bone structure of a human femur, a fastening plate 12 is integrally formed at one end of the main plate 1 away from the implantation end, the fastening plate 12 is attached to the greater trochanter 22 at the proximal end of the femur, a hook plate 121 is integrally formed at one end of the fastening plate 12 away from the main plate 1, the hook plate 121 is attached to the rotation socket 23, wherein the fastening plate 12 and the hook plate 121 are formed by bending.

As shown in FIGS. 2 and 3, the auxiliary wing plates 122 are integrally formed on the opposite sides of the fastening plate 12, and the auxiliary wing plates 122 are also formed with the mounting holes 11. When the fastening plate 12 is attached to the surface of the greater trochanter 22, the bone screws can be obliquely driven into the bone through the mounting holes 11 on the auxiliary wing plates 122, so that the aim of further improving the connection and fastening degree of the proximal femur fracture plate and the bone is fulfilled.

As shown in FIGS. 2 and 3, a quick-release edge 123, which is also integrally formed with the fastener 12, is provided between the auxiliary wing panel 122 and the fastener 12, the auxiliary wing panel 122 has a thickness equal to that of the fastener 12, and the quick-release edge 123 has a thickness one-third of that of the fastener 12. The quick release edge 123 can enable the auxiliary wing plate 122 to be bent within a certain angle range, so that the close fit between the auxiliary wing plate 122 and the surface of the large rotor 22 is improved. If the auxiliary wing plate 122 is not needed to be used for reinforcement and fixation according to the operation condition, the auxiliary wing plate 122 is only needed to be cut off along the quick-release edge 123 through the plate shearing pliers.

As shown in fig. 2 and 3, the fastening plate 12 is further provided with fastening holes 124, and on the first hand, the fastening holes 124 can give way to the irregular structure at the middle of the fastening plate 12 attached to the greater rotor 22, so as to reduce the possibility that the fastening plate 12 and the greater rotor 22 cannot be attached in place due to the irregular structure on the greater rotor 22; in the second aspect, the healing condition of the bone tissue at the greater trochanter 22 can be observed through the buckling holes 124, and a reference is provided for the subsequent rehabilitation proposal.

The bone fracture plate in the embodiment of the application has the following implementation principle:

the threading hole 13 for threading the bone connecting cable 3 on the main board 1 is communicated with the operation surface 16 and the threading surface 18 of the main board 1, and the threading surface 18 is connected with the operation surface 16, so that the hole depth communicated with the two surfaces is smaller theoretically, namely the feeding stroke of the cutter head of the drill is smaller when the threading hole 13 is drilled, and the aims of improving the processing precision and the processing stability of the bone fracture plate can be fulfilled. During operation, the main plate 1 of the bone fracture plate is firstly attached to the femoral body 2, the fastening plate 12 is attached to the surface of the greater rotor 22, and the hook plate 121 is hung above the rotor pit 23. Then through the bone plate and bind the bone by means of the bone cables 3 to achieve a relative fixation of the two, and then optionally drive bone screws into the bone through the mounting holes 11. Before operation, whether the auxiliary wing plate 122 needs to be used or not is judged according to specific conditions so as to determine whether the auxiliary wing plate 122 is detached or not.

In a second aspect, the embodiment of the present application further discloses a tool for producing the bone fracture plate, as shown in fig. 4 and 5, the tool comprises a bending die, and the bending die is used for bending the main plate 1, so that the buckling plate 12 and the hook plate 121 are formed. Because the bending angles of the buckling plate 12 and the hook plate 121 during bending forming are different greatly, the bending die respectively forms the buckling plate 12 and the hook plate 121 by adopting a step-by-step bending mode, and therefore the bending die comprises the first die carrier 5 and the second die carrier 6.

As shown in fig. 4, the first mold frame 5 is used for performing a first bending process on an original plate of the bone fracture plate, and is used for forming a fastening plate 12 of the bone fracture plate; the second die carrier 6 is used for performing the second bending processing on the bone fracture plate subjected to the first bending processing, and is used for forming a hook plate 121 located at the end of the buckling plate 12. The bone fracture plate is a blank plate 14 before being processed, the blank plate 14 is processed into a middle-level plate 141 after being bent for the first time, the middle-level plate 141 comprises a buckling plate 12 and a main plate 1, the middle-level plate 141 is formed into a light panel 142 after being bent for the second time, and the light panel 142 has the structure of the main plate 1, the buckling plate 12 and a hook plate 121.

As shown in fig. 4, a first mold base 51 and a first mold base 52 are disposed on the first mold base 5, a second mold base 62 and a second mold base 61 are disposed on the second mold base 6, wherein the first mold base 51 and the second mold base 61 are respectively used as male molds in bending forming, the first mold base 52 and the second mold base 62 are respectively used as female molds in bending forming, and a pneumatic power system (not shown in the figure) for controlling the first mold base 51 and the second mold base 61 to slide relative to the first mold base 52 and the second mold base 62 is disposed in both the first mold base 5 and the second mold base 6. In the process of processing and manufacturing the bone fracture plate, the positioning plates 15 which are integrally formed with the main plate 1 are respectively arranged on two opposite sides of the main plate 1 part of the blank plate 14, the first die holder 52 and the second die holder 62 are respectively provided with a containing groove 53 for placing the main plate 1, the depth direction of the containing groove 53 is consistent with the sliding direction of the first template 51 or the second template 61, and the groove wall of the containing groove 53 is provided with a positioning notch 531 for containing the positioning plates 15; in the process of bending the plate, the positioning notch 531 and the positioning groove are matched with each other to limit the main plate 1 in the direction perpendicular to the punching direction.

As shown in fig. 4, a bending protrusion 511 is integrally formed on one side of the first mold plate 51 facing the first mold base 52, a bending groove 521 is formed on the first mold base 52, and the bending groove 521 is located at one end of the accommodating groove 53 and is communicated with the accommodating groove. After the first mold plate 51 moves towards the first mold base 52, the bottom of the bending groove 521 and the bending protrusion 511 respectively extrude the main plate 1 from two opposite sides of the blank plate 14, so that the fastening plate 12 is formed, the bending protrusion 511 corresponds to the concave side of the fastening plate 12, and the bending groove 521 corresponds to the convex side of the fastening plate 12. After the first mold frame 5 is opened, the intermediate plate 141 is molded, and the intermediate plate 141 is taken out of the first mold holder 52.

As shown in fig. 5 and 6, a female mold block 63 is rotatably connected to one end of the second mold base 62, which is located at the receiving groove 53, a forming groove 631 is formed in one side of the female mold block 63, and a forming male mold 611 is fixedly connected to one side of the second mold plate 61, which faces the second mold base 62, and the forming male mold 611 is to be matched with the receiving groove 53. A male mold block 612 is integrally formed at one end of the forming male mold 611, and the male mold block 612 is matched with the forming groove 631 of the female mold block 63 to bend the end of the fastening plate 12 out of the hook plate 121; the rotation plane of the female die block 63 is parallel to the moving direction of the second die plate 61, and when the middle plate 141 is placed in the second die holder 62, the rotation direction of the female die block 63 corresponds to the bending direction of the hook plate 121.

As shown in fig. 5 and 6, the second mold base 62 is divided into a base 621 and a placing table 622, wherein the base 621 is fixedly connected with the second mold frame 6, the placing table 622 is connected with the base 621 in a sliding manner, the accommodating groove 53 is located on the placing table 622, and the moving direction of the placing table 622 is consistent with the sliding direction of the second mold plate 61. A guide post 623 is fixedly connected to the base 621, the length direction of the guide post 623 is parallel to the moving direction of the placing table 622, and the guide post 623 is inserted into the placing table 622 and is in transition fit with the placing table 622; the base 621 is further provided with a return spring 624, the axis of the return spring 624 is parallel to the axis of the guide post 623, two ends of the return spring 624 are respectively fixedly connected with the base 621 and the placing table 622, and the return spring 624 is always in a compressed state.

As shown in fig. 5 and 6, a starting protrusion 6221 is integrally formed on the placing table 622 facing the concave module 63, a transmission groove 632 for matching with the starting protrusion 6221 is formed on the concave module 63, and both the surface of the starting protrusion 6221 and the groove surface of the transmission groove 632 are arc surfaces and are mutually attached. Two edges of the opposite groove wall of the transmission groove 632 are respectively a mold closing edge 633 and a mold opening edge 634, the mold closing edge 633 and the mold opening edge 634 are respectively positioned at two ends of the moving direction of the starting protrusion 6221, when the starting protrusion 6221 moves along with the placing table 622, the mold closing edge 633 or the mold opening edge 634 is pushed, and under the action of the pushing force, the female mold block 63 rotates.

As shown in fig. 5 and 6, the molded middle-level board 141 is taken out from the first mold seat 52 and placed on the second mold seat 62, the main board 1 is located in the accommodating groove 53, and the fastening board 12 is located at one end of the accommodating groove 53 close to the female mold 63; the second mold plate 61 moves towards the second mold base 62, the forming punch 611 abuts against one side of the main plate 1, which is away from the groove bottom of the accommodating groove 53, meanwhile, the convex mold block 612 abuts against one recessed side of the buckling plate 12, the forming punch 611 applies thrust to the placing table 622 through the middle-stage plate 141, so that the placing table 622 moves towards a direction in which the return spring 624 is compressed, in the process, the starting protrusion 6221 pushes the mold clamping edge 633 to rotate the concave mold block 63, when the placing table 622 is pushed to the extreme position, the groove bottom of the forming groove 631 and the convex mold block 612 respectively abut against two opposite sides of the end of the buckling plate 12, which is far away from the main plate 1, so that the end of the buckling plate 12 is bent to form the hook plate 121, and the light panel 142 is formed. When the mold is opened, the second mold plate 61 is far away from the second mold base 62, the placing table 622 is also close to the second mold plate 61 and moves under the thrust of the return spring 624, the starting protrusion 6221 pushes the mold opening edge 634, the mold block 63 rotates reversely, the mold opening is completed, and the optical panel 142 is taken down from the second mold base 62.

The positioning plate 15 is left on the main plate 11 portion formed into the light panel 142, so that the positioning plate 15 on the main plate 11 needs to be cut and polished before the milling and drilling process is performed on the light panel 142.

As shown in fig. 7, the milling and drilling mechanism 4 is used for milling and drilling the optical panel 142, so that the threading hole 13, the connecting groove 131 and the mounting hole 11 are formed on the optical panel 142, and includes a milling and drilling fixing base 4 and a processing table 41, the processing table 41 is mounted on the milling and drilling fixing base 4, and the processing table 41 is provided with a placing groove 415 corresponding to the shape of the main board 1, the fastening board 12 and the hook board 121. The light panel 142 may be placed in the placement groove 415 with the opposite sides of the light panel 142 in the width direction completely conforming to the walls of the placement groove 415. The fixture assembly 42 is disposed on the processing table 41, and the fixture assembly 42 can be used to clamp and fix the optical panel 142, and subsequent groove milling and drilling can be performed after fixation.

Because the threading hole 13 is an inclined hole, the cutter head of the drill bit penetrates out of the threading surface 18 of the bone fracture plate during drilling, the end part of the cutter head is easy to directly contact with the processing table 41 to generate interference, as shown in fig. 7 and 8, a plurality of abdicating notches 416 communicated with the placing groove 415 are formed in the processing table 41, the distribution positions of the abdicating notches 416 are arranged corresponding to the threading hole 13, the abdicating notches 416 are positioned at the hole opening of the threading hole 13 on the threading surface 18, and the cutter head of the drill bit penetrates out of the threading surface 18 and then enters the space of the abdicating notches 416 so as to reduce the probability that the cutter head of the drill bit directly impacts the processing table 41. Meanwhile, the processing table 41 is provided with a plurality of abdicating notches 416 communicated with the placing groove 415, a picking and placing notch 414 is formed in a position, opposite to the groove wall, of the placing groove 415 on the processing table 41, and after the processing is finished, the picking and placing notch 414 can provide convenience for directly picking the bone fracture plate out of the placing groove 415.

As shown in fig. 7 and 8, the fixture assembly 42 includes an installation rod 421 and a fixture block 422, a plurality of fixture holes 411 are formed on the processing table 41 around the placement groove 415, and one end of the installation rod 421 is screwed into the fixture holes 411; the latch 422 is coaxially fixed to an end of the mounting rod 421 far from the end screwed into the fixture hole 411, and a latching portion 423 is integrally formed on a side wall of the latch 422. After the bone plate is placed in the placement groove 415, the mounting rod 421 is rotated until the locking portion 423 is attached to the upper surface of the main plate 1, and at this time, the clamping assembly 42 can cooperate with the placement groove 415 to fix the relative position between the main plate 1 and the processing platform 41. For bone plates with different lengths of the main plate 1, the installation quantity and the positions of the clamp assemblies 42 can be adjusted according to the specific situation.

As shown in fig. 7 and 8, the side wall of the fixture block 422 is further integrally formed with a limiting portion 424, the machining table 41 is provided with a yielding groove 412 at the opening of the fixture hole 411, and a limiting rib 413 is provided at the groove wall of the yielding groove 412. When the mounting rod 421 is just screwed into the fixture hole 411, the limiting portion 424 is higher than the limiting rib 413, the two are not in contact with each other, when the mounting rod 421 is continuously rotated to abut against the limiting portion 424 and the limiting rib 413, the mounting rod 421 cannot continuously rotate towards the processing table 41, at this time, the clamping portion 423 is attached to the surface of the main board 1 or the buckling plate 12, so that the possibility that the clamping portion 423 damages the surface of the bone plate due to the fact that the mounting rod 421 is continuously rotated due to human reasons is reduced, meanwhile, the orthographic projection of the clamping portion 423 along the height direction of the processing table 41 does not fall into the abdicating notch 416, and therefore the position where the clamping portion 423 is located cannot cause space influence on drilling of the drill.

In a third aspect, the embodiment of the present application further discloses a process for producing the bone plate, which sequentially comprises the following steps:

s1: bending the plate raw material to form the optical panel 142, wherein the optical panel 142 comprises the main board 1, the buckling board 12 and the hook board 121;

s2: placing the optical panel 142 in the placing slot 415, and clamping the optical panel 142 by using the clamp assembly 42;

s3: placing the machining table in a machining chamber in a CNC machining center, fixing the milling and drilling fixing seat 4 and the machining chamber relatively by using bolts, and milling a connecting groove 131 on the surface of the light panel 142 by using a milling cutter on the CNC machining center;

s4: adjusting a main shaft of a CNC (computerized numerical control) machining center, obliquely drilling a threading hole 13 in the light panel 142 in the S3 by using a drill cutter clamped on the main shaft, abutting the initial position of a cutter head of the drill cutter against two ends of the connecting groove 131, adjusting the angle of the drill cutter to form an included angle of 45 degrees with the horizontal direction, and controlling the drill cutter to obliquely advance by the CNC machining center until the threading hole 13 is formed;

s5: and (3) replacing the drill cutters with different specifications to drill the light panel 142 in the step (S4) so as to form the mounting hole 11, removing the clamp assembly 42 after forming, taking out the finished bone fracture plate, and performing the subsequent surface quality treatment process.

When the connecting groove 131 and the threading hole 13 are machined, the connecting groove 131 is milled on the operating surface 16 by the milling cutter, the axis of the threading hole 13 and the operating surface 16 are relatively inclined in the process, and the end groove wall of the connecting groove 131 provides an initial force application point for the tool bit of the drill, so that the directional stability of the drill during feeding is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The processing technology of the bone fracture plate is characterized in that: the bone fracture plate comprises a main plate (1), wherein a buckling plate (12) is arranged at one end of the main plate (1), a hook plate (121) is arranged at one end, away from the main plate (1), of the buckling plate (12), opposite end faces, located in the thickness direction, of the main plate (1) are respectively an operation face (16) and a contact face (17), opposite side faces, located in the width direction, of the main plate (1) are threading faces (18), a plurality of threading holes (13) are formed in the main plate (1), one end of each threading hole (13) is located on the operation face (16), and the other end of each threading hole is located on one threading face (18);

the threading surface (18) comprises a first threading surface and a second threading surface, orifices of threading holes (13) are formed in the first threading surface and the second threading surface, a connecting groove (131) is formed in one side, located on the operation surface (16), of the main board (1), one end of the connecting groove (131) is communicated with the orifice of the threading hole (13) extending from the first threading surface to the operation surface (16), the other end of the connecting groove is communicated with the orifice of the threading hole (13) extending from the second threading surface to the operation surface (16), and the bottom of the connecting groove (131) and the wall of the threading hole (13) are in transition through a fillet;

the process sequentially comprises the following steps:

s1: processing the plate raw material by using a processing tool, wherein the processing tool comprises a bending die, the bending die is used for bending and molding the plate raw material into a light panel (142), and the light panel (142) comprises a main board (1), a buckling board (12) and a hook board (121);

s2: the machining tool further comprises a milling and drilling mechanism, the milling and drilling mechanism is used for milling and drilling the main board (1) and forming a threading hole (13) and a connecting groove (131), the milling and drilling mechanism comprises a milling and drilling fixing seat (4) and a machining table (41), the machining table (41) is installed on the milling and drilling fixing seat (4), a placing groove (415) used for placing the main board (1) is formed in the machining table (41), a plurality of abdicating notches (416) communicated with the placing groove (415) are formed in the machining table (41), the distribution positions of the abdicating notches (416) correspond to the threading hole (13), and the smooth surface (142) board in S1 is placed in the placing groove (415);

s3: placing a processing table (41) in a processing chamber in a CNC (computerized numerical control) processing center, fixing a milling and drilling fixing seat (4) and the processing chamber relatively by using a bolt, and milling a connecting groove (131) on the surface of a smooth panel (142) by using a milling cutter on the CNC processing center;

s4: and adjusting a main shaft of the CNC machining center, obliquely drilling a threading hole (13) in the smooth panel (142) in the S3 by using the drill cutter clamped on the main shaft, abutting the initial position of the cutter head of the drill cutter against two ends of the connecting groove (131), adjusting the angle of the drill cutter to form an included angle of 45 degrees with the horizontal direction, and controlling the drill cutter to obliquely advance by the CNC machining center until the threading hole (13) is formed.

2. A process of manufacturing a bone plate according to claim 1, wherein: auxiliary wing plates (122) are arranged on opposite side faces of the buckling plates (12), quick-release edges (123) are fixedly connected between the auxiliary wing plates (122) and the buckling plates (12), and the thickness of each quick-release edge (123) is smaller than that of each buckling plate (12).

3. A process for bone plate attachment according to claim 1, wherein: the buckling plate (12) is provided with buckling holes (124), and the buckling holes (124) penetrate through the thickness of the buckling plate (12).

4. A process for bone plate attachment according to claim 1, wherein: the machining table (41) is provided with a clamp assembly (42), the clamp assembly (42) comprises a clamping block (422), the clamping block (422) is detachably mounted on the machining table (41), a clamping part (423) is connected to the side wall of the clamping block (422), and the clamping part (423) is in contact with the operation surface (16) of the main board (1).

5. A process of manufacturing a bone plate according to claim 4, wherein: the fixture block (422) is fixedly connected with an installation rod (421), and the installation rod (421) is in threaded connection with the machining table (41);

the fixture block (422) is fixedly connected with a limiting part (424), a limiting rib (413) is arranged on the machining table (41), when the fixture block (422) rotates to the position limiting part (424) to be abutted against the limiting rib (413), the clamping part (423) is in contact with the operation surface (16) of the main board (1), and the orthographic projection of the clamping part (423) along the height direction of the machining table (41) does not fall into the abdicating notch (416).